Showing papers on "Collar published in 1991"

Safety sheath for needles, sharp instruments and tools

Abstract: A reusable arrangement to protect against accidental contact with the surfaces of needles and other invasive medical instruments. In one embodiment, the invention comprises a collar that engages a sharp surgical instrument in advance of its sharp end. Attached to the collar by means of a flexible hinge is a slotted longitudinal member (21), which swings over the sharp end of the instrument, thereby engaging either the collar or the portion of the instrument just in front of the collar and also retaining the instrument behind a keeper shelf (44). In second and third embodiments, the collar extends into an arcuate sheath, which is molded to assume a rest position that bends away from the sharp end of the instrument. This arcuate sheath ultimately forms an elbow curl (52) and extends back toward the collar, thereby forming upper and lower arcuate portions. The lower portion terminates in a set of flanges (56) that help define a trough (54) to carry the sharp end of the instrument. In a fourth embodiment, the keeper shelf (44) is modified so that it may be engaged with the opposite side of the longitudinal member (21) to lock this member over the sharp instrument. The longitudinal member may also be equipped with wing member (92) to facilitate movement of the sharp instrument around the keeper shell (44). In a fifth embodiment, the locking mechanism comprises a set of flanges (97) depending from the longitudinal member (21) that are gripped by complementary catches (98) on the collar when the device is placed into the closed position.

Dipmeter apparatus and method using transducer array having longitudinally spaced transducers

Abstract: A disclosed embodiment utilizes one or more toroidal coil antennas mounted, in an insulating medium, on a drill collar to induce currents which travel in a path that includes the drill collar and earth formations around the drill collar. At least one array of electrodes is provided on at least one stabilizer blade of the drill collar and is utilized to detect currents transmitted by toroidal coil antennas which return via the formations to the electrodes laterally; that is, approximately normal to the axis of the drill collar. Signal traces are obtained from measurements taken at respective ones of the transducers, and a dip characteristic of the formations is determined from the signal traces and from signals representing the rotational orientation of the drill collar.

Self locking connector

Abstract: A self-locking connector comprising first and second tubular fittings, the first fitting having an annular ramp and a threaded end adjacent to the ramp, and the second fitting having an annular shoulder adjacent to one of its ends. A nut is rotatably mounted on the second fitting and is threaded to the threaded end of the first fitting. The nut has a flanged end which is adapted to engage the shoulder on the second fitting to bring the two fittings into axially aligned mating and sealing relationship as the nut is tightened on the first fitting. A resilient collar is interposed between the ramp on the first fitting and the nut. The collar has longitudinal slots in the forward end thereof which engage the ramp in locking relationship as the nut is tightened onto the threaded end of the first fitting. The adjacent edges of the nut and of the collar have mating ramps, which each ramp having an angle greater than the helical angle of the threads of the first fitting and of the nut. When the nut is tightened, the ramps on the collar and on the nut mate with one another, and effectively lock the nut against rotation with respect to the first fitting.

Dental syringe with finger actuated tip retainer assembly

Abstract: A dental syringe is disclosed having a head and attached handle. Finger actuated valves in the head control water and air flows to a syringe tip having concentric conduits. A tip retainer assembly includes a holder having a socket to insertably receive the syringe tip. A lock collar, slidably carried by said holder, has a conical surface which acts on ball elements in the holder to urge them into locking engagement with a grooved, inserted portion of the syringe tip. A spring automatically positions the collar to the locking position with movement of the collar in an opposite direction to a tip unlocking position by fingertip pressure applied to the collar.

Process for making a bearing collar and bearing assembly equipped with such a collar

Abstract: Bearing assembly carrying a radial collar (10) for retaining an interior ring element (4) of a bearing having two rows of rolling bodies (2) and which has at least one fastening flange (5), in which the inner face of collar (10) extends axially under ring element (4) by an axial support edge.

Use of population-based data to assess risk factor profiles of blue and white collar workers.

Abstract: In light of increasing interest in the workplace as a site for primary prevention of chronic disease, more information concerning the current health status of workers is needed. This report compares "blue collar" (n = 2118) and "white collar" (n = 1900) respondents from a population-based random sample survey conducted in two southeastern New England communities. The specific responses were to a household interview and physiological measures emphasizing the risk factors for cardiovascular disease. These risk factors were elevated blood cholesterol, elevated blood pressure, smoking, being overweight and physical inactivity. Designation as blue or white collar was based upon the Standard Occupational Classification Manual. Gender specific comparisons of physiological status and self-reported knowledge attitudes and behaviors related to cardiovascular disease revealed that blue collar workers are at higher risk only for certain controllable risk factors, namely smoking and body mass index (women only). Contrary to other reports in the literature we have not found any significant difference in blood pressure or total cholesterol between the two groups. Even when people in high risk categories (systolic blood pressure greater than or equal to 140 mm/Hg, diastolic blood pressure greater than or equal to 90 mm/Hg cholesterol greater than or equal to 240 mg/dL) were studied the distributions were equally similar in both blue and white collar workers among each gender group. These findings indicate that educational interventions should target all segments of the population regardless of the nature of their occupation. More emphasis should be placed on offering programs to increase knowledge and improve health-related attitudes of blue collar workers.(ABSTRACT TRUNCATED AT 250 WORDS)

Needle connector with rotatable collar

Abstract: A safety connector is provided for connection to the branch port on a fluid flow line. The connector comprises a tubular body having an opening at its distal end to receive a branch port and a channel in the wall of the tubular body adjacent to the distal end. The channel is adapted to receive the fluid flow line when the branch port is engaged within the tubular body. The connector also comprises a locking rotatable collar located on the distal end of the tubular body. The collar is rotatable from a first position wherein the channel is adapted to receive the fluid flow line when the branch port is engaged within the tubular body, and a second position wherein the collar prevents the removal of the branch port from the tubular body.

Extended wear cervical collar

Abstract: A cervical collar is disclosed which is formed from a stiff flexible plastic material and comprises (a) a neck encircling band comprising a back portion and a front portion and (b) a chin support formed from such plastic material. The collar provides two features which confer greater comfort when the collar is worn for extended periods of time. The chin support is supported to reduce the force of contact between the chin support and the top edge of the front portion of said collar. In a preferred embodiment, the support is provided by a plurality of load-bearing tabs extending from the top edge of the front portion of the collar. The collar also has a shelf-forming member which is attached to the back portion of the collar. Preferably the shelf-forming member is a sheet of padding material and the forming means is a strap which passes between the back portion of the collar and the shelf-forming member such that when the strap is engaged to hold the back portion in a flexed position the shelf-forming member forms the supporting shelf.

Threaded suture sleeve

Abstract: A suture sleeve for anchoring the lead body of an implantable medical device, such as a cardiac pacemaker, includes an elongated tubular member having a lumen for receiving the lead body. The tubular member has external threads for receiving a threaded collar. The tubular member and collar have engaging, tapered surfaces whereby tightening of the collar on the tubular member compresses a portion of the tubular member into gripping engagement with the lead body. The tubular member and collar have surfaces which come into contact upon tightening of the collar so as to limit compression of the lead body and thereby prevent damage thereto.

Technique for reducing whirling of a drill string

Abstract: Improved techniques are provided for correcting signals from a downhole sensor on a drill collar eccentrically rotating within a borehole. The corrected sensor signal may be used to generate a well log which more accurately represents the conditions which the sensor would have generated had the tool been rotating such that the spacing between the sensor and the borehole well remained constant. The sensor signals are generated at time intervals of less than half the period of rotation of the drill collar. The frequency components of the time-varying sensor signals are plotted, and the frequency component attributable to the eccentric rotation between the drill collar and the borehole may be determined. The magnitude of this frequency component may be used to generate a correcting sensor signal, which then modifies the average sensor signal so that a more accurate well log may be obtained. The techniques of the present invention may be used to determine actual rotational speed of the drill collar and the spacing between the sensor and the wall, and are particularly well suited to determining a whirling condition in real time and alter drilling parameters in response thereto.

Locking multiple conductor electrical connector

Abstract: A connector for mating a plurality of male and female electrical contacts has two tubular telescoping body portions and an annular collar surrounding them. A spring is confined inside the collar with its ends engaging the collar and a first body portion so as to yieldingly resist rotation of the collar relative to the first body portion. Axially opposed camming tabs on the collar and second body rotate the collar as the bodies are telescoped to a latching position of the tabs locking the connector bodies in mated contact position.

Post holder and marker therefor

Abstract: A post-support for permanent installation at or below ground level includes a post-receiving collar affixed to fins. The fins have collar supporting shoulders against which a post may rest. A driver/cap/marker has a cap and a sleeve and the sleeve length is the same as the collar length so that when the driver/cap/marker is inserted into the collar the lower edge of the sleeve rests on the shoulders and the underside of the cap/marker rests on top of the collar. The driver/cap/marker serves firstly as a tool for inserting the support into the ground, secondly as a cover for an unused support, and thirdly as marking/locating means for an unused collar.

Animal protective collar

Abstract: A custom-fittable, protective collar assembly for animals, useful for preventing contact beteen the animal's head and other parts of its body. Also described is a method of fitting such a collar assembly in order to ensure compliant reapplication after the collar has been removed from the animal's neck. The collar assembly includes a substantially flat collar-forming sheet of resiliently flexible material, together with a positionable closure assembly such as a positionable hook and loop fastening system.

High strength fastener and method

Abstract: A fastening system including a two piece swage top fastener including a pin and a collar in which the pin has shallow lock grooves having a ratio of (h/Du)×10 2 of four (4) or less and in which the lock grooves have a simulated streamlined root contour generally defined by a portion of an ellipse, with the collar having a wall thickness defining a volume of material sufficient to provide overpacking of the shallow grooves of around 16% and to provide a clamp load of between around 85% to around 95% of the yield point of the pin, and with the pin and collar materials having ultimate shear strengths in a ratio of around 1.8:1 to 2.4:1 and with the width of the shallow pin grooves and intervening shoulders being generally in accordance with the shear strength ratio between the pin and collar.

Clamp collar assembly

Abstract: A C-shaped clamp collar is adapted for attachment to a shaft having radius R. The collar includes a screw for controlling the relative distance between the opposed ends of the collar. The collar has a nominal (rest) inner diameter less than 2R. The screw and collar adapted so that the screw may sequentially drive the opposed ends of the collar apart so that its inner diameter is greater than 2R and the collar may be placed on the shaft, and then draw those ends together until the inner diameter is equal to R and the collar is forced against the shaft.

Metallic threaded composite fastener

Abstract: A metallic threaded composite fastener, particularly suited for high temperature applications, has a body member made of high temperature-resistant composite material with a ceramic coating. The body member has a head portion configured to be installed in a countersunk hole and a shank portion which is non-circular and tapered. One part of the shank may be non-circular and the other part tapered, or the two types of surfaces could be combined into a frustum of a non-circular cone. A split collar member made of high strength, high temperature-tolerant metal alloy is split into two halves and the interior of the halves are configured to engage the shank. The exterior of the collar has external threads and the upper portion of the collar has a circumferential groove which receives a lock ring to secure the collar halves to the shank. In the assembled condition torque may be transmitted from the body to the split collar by the engaged non-circular portions to install and remove the fastener assembly into or from a threaded aperture and shear loads in the collar threads are transferred to the shank tapered portion as a combination of radial compression and axial tension loads. Thus, tension loads may be applied to the fastener shank without damaging the ceramic coating.

Intumescent fire stop device

Abstract: An intumescent fire stop device having a collar (12), the device is easy to install and effectively and efficiently channels heat to an intumescent material so that the intumescent material expands quickly and uniformly. An inner surface of the collar has a plurality of heat conducting tabs (22) that extend outwardly and secure the intumescent material to the collar. The heat conducting tabs extend into the intumescent material and thereby effectively channel heat from a fire into the interior regions of the intumescent material so that the intumescent material expands quickly and uniformly. The collar further includes a first interlocking end having at least one opening (42). The opening(s) is configured to receive finger(s) (44) on a second interlocking end of the collar. The interengagement of the finger(s) and opening(s) allows the collar to be firmly secured about a section of a pipe. The collar typically has a plurality of releasibly secured Z-shaped mounting clips (50). The mounting clips are used to secure the collar to firm, structural surface such as a wall or ceiling having an opening through which the pipe passes.

Pipe restraining member

Abstract: A pipe restraining member comprising a collar member, flanges disposed on the collar member for connecting the collar member to a support, the collar member and the support being adapted cooperatively to encircle a first pipe member, lugs disposed on the collar member for connecting the collar member to a collar assembly encircling a second pipe member, and discrete groups of protrusions extending inwardly from an inside surface of the collar member and adapted to engage an external surface of the first pipe.

Surgical collars: a survey of their prescription and use

Abstract: We report the results of a questionnaire survey of 124 orthopaedic, rheumatology, medical and accident and emergency outpatients prescribed a surgical collar during a 3-month period. Of these, 99 (80%) returned the questionnaire. Instructions received about when to wear the collar differed widely, especially between specialties. Most patients (76%) found benefit in wearing the collar. Pain was the symptom helped most (78%) whilst dizziness was helped least (40%). Problems with the collars were common, many being too hot (69%) and uncomfortable (48%). A third had difficulty putting the collar on. Despite these problems, compliance was good with 19 patients discontinuing collars for reasons other than recovery or medical advice. We believe this study highlights further areas for research and stimulates a re-evaluation of collar usage.

Squeeze bottle caddy

Abstract: A collar (also referred to as a caddy) adapted to be attachable to a bottle or related container for providing safe, hands-free access to a fluid bottle or related container which has a relatively wide mouth and a screw-on top or lid. Such caddy can be attached with a strap to hang over a shoulder, bicycle, or car seat to prevent spilling any liquid from the bottle. The collar is useful to permit the bottle to be joined to a carrying strap to enhance the utility of the bottle during athletic activities or during leisure time pursuits. The collar is preferably fabricated of a plastic material such as polypropylene, polyethylene or other durable material. However, the collar has "break-away" ends so that the strap is removable in ordinary circumstances and the collar will break in response to forces generated in unusual circumstances.

Mixer impeller shaft attachment apparatus

Abstract: A mixer impeller, which is adapted to mix and blend liquids and liquid suspensions in industrial and commmercial applications and is subject to forces which tend to work the impeller loose from attachment with its driving shaft, is secured to the shaft by collars (locking rings) which are threaded on the ends of hubs from which the blades of the impeller extend. In order to secure the attachment of the collars to the hub, a locking key is inserted between the collar and the shaft. The inner periphery of the collars are tapered outwardly away from the shaft. The neck of the locking key has portions which are deflected against these tapered inner peripheries when a pin is inserted through the neck of the locking key. A ramp on the collar mates with a ramp on the key to prevent reverse rotation (working loose) of the collar. The impeller is restrained against axial movement by the collar and against rotational movement by being keyed to the shaft and restricted by the ramp on the collar. Removal of the key for impeller replacement and maintenance is readily accomplished using the ramps on the surfaces of the collars and shoulder of the key which bear against each other. Upon removal of the locking pin, the inside of the neck deflects inwardly and the key is urged out of the collar, when the collar is unscrewed from the hub.

Adjustable basketball goal

Abstract: An adjustable height basketball goal including a vertical column having angled corners and a beam extending up from the column. The upper end of the beam supports a basketball goal and the lower end is attached to the column by a movable collar. The collar carries a first set of rollers disposed to contact the angled corners at a first elevation, and a second set of rollers disposed to contact the angled corners at a second lower elevation. The rollers allow easy movement of the collar with respect to the column while firmly securing the beam against wobbling. A vertical adjustment mechanism, such as a rack and gear assembly selectively moves the collar with respect to the column to adjust the height of the basketball goal above the playing surface.

Plastic bottle having a linerless closure with collapsible flange and method

Abstract: An integral blow molded bottle having a neck, a thread surrounding the neck and a collar at the top of the neck. A circumferential flange is provided on the outside of the top of the collar and a support column is provided on the inside of the collar for limiting threading of a cap down on the neck. A circumferential groove is formed in the outside of the collar to prevent bottoming of the flange by a cap threaded onto the neck.

Dual noise making device for lures

Abstract: A lure-type device adapted for use by a fisherman, comprising a non-floating body member having a central longitudinal axis, with this device being able to be readily installed upon a fishing line. This device has an elongate portion of reduced diameter extending along such central axis, upon which a separate, toroidally-shaped collar member is loosely disposed. The collar member is intended to move with respect to this elongate portion for a limited extent as the device moves through the water, with the movement of the collar member with respect to the elongate portion creating a noise attractive to fish. The collar member may be hollow and contain noise-producing members, and in addition, vibration-producing means may be utilized to increase the noise made by the noise-producing members utilized inside the collar.

Hole saw arbor

Abstract: A hole saw arbor assembly connectable to a source of torque comprises an arbor having a first end and a second end. A power tool mount is disposed on the first end, and threads are disposed on the second end of a construction capable of mounting a hole saw thereon. A collar mount area is disposed on the arbor proximate to the second end, and a collar retraction area is disposed on the arbor proximate to the first end. A drive collar has a central bore therein, and the arbor is disposed through the central bore. The drive collar is capable of translation between the collar mount area and the collar retraction area, is rotatable about the collar retraction area independent of the arbor, and is incapable of rotation about the collar mount area independent of the arbor. Means for retaining the drive collar about the collar retraction area is disposed on the arbor. The drive collar has drive pins associated therewith, and the drive pins are insertable into apertures in the hole saw. Means for holding the drive pins within the apertures is disposed on the arbor.

Method for non-abrasively running of tubing

Abstract: A method for non-abrasively running tubing comprising suspending the tubing 101 from the face 108 of the uppermost collar 102 of the tubing by resting the face upon a support shoulder 134, making up a new tubular with collar into a tubular unit, attaching a non-abrasive lift unit 110 to a tubular unit, stabbing the new tubular into the upper collar, non-abrasively making the connection tight, and lifting the lift unit to raise the string, the method being appropriately reversed for pulling the string.

Multiple size vent-pipe elastomeric collar

Abstract: A flashing including an elastomeric collar with an inner surface and an outer surface and adapted to seal against more than one size of a vent pipe passing vertically through a central opening in the collar. The elastomeric collar has a circular base adapted for interconnection with a base member and a central opening including, a first annular ring defined by a first separation circle and a second separation circle, at least one additional annular ring outwardly therefrom that is frangibly separable from the first annular ring at the second separation circle and frangibly separable from the elastomeric collar at a third separation circle. Each annular ring selectively is removable by a pull tab that extends vertically from the outer surface of each annular ring at a location proximate to the separation circle of that ring with respect to the elastomeric collar.

Protective hull enclosure

Abstract: A protective hull enclosure for a stationary boat floating in a body of water is disclosed. A floatation collar forms a first closed figure that approximates the shape of the perimeter of the hull at the surface of the water. The interior of this floatation collar forms a continuous open space. A shroud frame is formed of a continuous flexible rod, and forms a second closed figure also approximating the shape of the perimeter of the hull. A protective shroud of a flexible, water impenetrable, opaque material in the approximate shape of the hull of the boat has a hem formed therein into which the shroud frame is inserted and retained. The shroud and shroud frame are attached to the floatation collar. The shroud also includes pockets sewn into the material and support ballast weights. A continuous flap protrudes from the hem of the shroud toward the side of the hull and extends around the perimeter of the boat, thereby providing a means for preventing light from entering the water between the hem of the shroud and the side of the boat. A gas pump is provided that forces water from the floatation collar to be forced through a U-shaped water inlet tube at the low point in the floatation collar, causing the floatation collar to be filled with air and float, thereby causing the hull enclosure to achieve a deployed position. A venturi pump is included that pulls water through the inlet tube into the floatation collar, causing the floatation collar to sink and thereby causing the hull enclosure to achieve an undeployed position, allowing the boat to depart. A guide apparatus is included that has at least one slidable connector fixed to the collar, and at least one guide wire that is held by a wire support in a vertical orientation adjacent to the collar and independent of the boat.

Fan blade axial retention device

Abstract: A fan blade retention device includes a collar (13) inserted into a circumferential groove (14) cut into the hub (6) of a turbofan engine. The outward facing groove (14) is positioned aft of the fan blade fixing channel (15). When the fan blade root (11) is completely received within the blade fixing channel (15), the blade root (11) contacts the collar (13) and is prevented from traveling further aft. If the collar 13 is segmented, an annular rear cover plate (19) holds the segmented collar (13) radially within the groove (14).

Auxiliary handle for hand-held drill

Abstract: An auxiliary handle for a drill includes a unitary member with an elongated handle portion and a collar portion. The collar portion has a circular opening sized to accomodate therein a cylindrical shoulder at the forward end of the drill. The unitary member is formed with an open slot extending from the circular opening of the collar portion into the handle portion, the open slot providing a separation in the collar portion. A clamping arrangement extends across the slot for selectively narrowing the slot to reduce the circumference of the circular opening so as to clamp the handle on the drill shoulder accommodated therein.