Showing papers on "Collar published in 1987"

Antimicrobial wound dressing and skin fixator for percutaneous conduits

Abstract: An antimicrobial catheter shield is provided comprising an elastomeric catheter collar and a planar porous elastomeric peripheral flange, with an absorbent patch containing an antimicrobial agent attached to the surface of the flange opposite to the collar. A radial slit extends through the collar, flange and patch and the collar is adapted with a means for securing a catheter to prevent longitudinal motion of the catheter through the collar. The catheter shield provides an antimicrobial patch, as well as a longitudinal and lateral anchor for the catheter, which is easily applied and readily replaced.

Protective vest having a cervical collar

Abstract: Disclosed is a protective vest having a collar or neck guard intended for use with helmets and, optionally, with shoulder pads or harnesses, of the types worn by players in contact sports. The protective vest has a flexible body with shoulder portions between chest and back panels. Surrounding an opening for receiving a player's neck is a raised collar, integrally formed with the body, which has an upper ring-like surface for contacting the bottom edge of the player's helmet. When contacted by the player's helmet, the collar, formed of resilient material, is placed in energy-absorbing compression. Also, the chest and back panels surrounding the collar, also being made of resilient material, are placed in a tension and compression loading, to further aid in absorbing the loading applied to the collar. The body portion and, particularly, the chest and neck panels are pliable so as to conform to the topography of the player's upper torso and to frictionally engage the player's body and any clothing in contact with the player's body underneath the protective vest, so as to provide the frictional engagement necessary for efficient energy absorption.

Apparatus and method for measuring differential pressure while drilling

Abstract: An apparatus and method for measuring differential pressure of mud internal a drill string and mud in a borehole annulus is disclosed. The apparatus typically comprises: a drill collar having a pressure balancing piston in hydraulic contact with the borehole annulus mud; a shaped cylinder in contact with the mud internal the drill string and supported by the drill collar but attached such that axial forces on the drill collar are not transferred to the shaped cylinder, wherein the shaped cylinder has relatively thicker end portions in contact with the drill collar, and a relatively thinner middle portion such that a gap is formed between the relatively thinner middle portion of the shaped cylinder and the drill collar; a fluid filling the gap and in hydraulic contact with the pressure balancing piston; a plurality of strain gauges axially and circumferentially disposed around the relatively thinner middle portion of the shaped cylinder, wherein the axially disposed strain gauges provide an indication of axial stress and the circumferentially disposed strain gauges provide an indication of hoop stress; and method for obtaining at least one axial and hoop stress measurement from the plurality of strain gauges, for taking the difference between hoop and axial measurements, and for providing a pressure determination representing the difference of mud pressure.

Femoral prosthesis with selectively removable collar

Abstract: A stem-type femoral prosthesis has a calcar collar selectively installed on the stem of the prosthesis or removed from the stem interoperatively by sliding the collar in transverse directions between the medial and lateral sides of the stem, at the proximal end of the stem, to facilitate seating of the stem without the collar during implant and to enable subsequent removal of stem by first releasing the collar from the stem to gain access to the affixed surfaces of the stem beneath the collar.

Baby bottle identification collar

Abstract: A removable identification collar for baby bottles. The collar has a planar portion having a wall defining a hole therethrough. The collar is placed over the neck of a bottle with the neck passing through the hole and the collar is maintained on the bottle by a standard nipple cap. The collar has a flange connected to the planar portion whereby a portion thereof is adapted to receive a gummed label. A raised ridge conforming closely to the periphery of a gummed label is provided to prevent infants from readily removing the label.

Antimicrobial wound dressing and skin fixator for orthopedic pins

Abstract: An antimicrobial orthopedic pin percutaneous protection kit is provided comprising a shield and a pad and patch combination. The shield comprises a central elastomeric collar having a longitudinal orifice and having one end of the collar substantially orthogonally disposed to an elastomeric peripheral flange, the flange extending around the end of the collar, with a radial slit extending through the collar and flange from the longitudinal orifice of the collar to the outer edge of the flange. The shield is adapted with a means for securing the collar around an orthopedic pin to prevent longitudinal motion of the pin. The patch contains an antimicrobial agent and is centrally attached to a porous pad. The pad and patch have a pressure-sensitive adhesive coating on the exposed surfaces.

Apparatus for lateral drilling in oil and gas wells

Abstract: A method and associated apparatus for lateral drilling in an oil and/or gas well involving either stopping the drilling or temporarily cementing in a plug in the existing well bore at the desired location for deviation. A tight radius of curvature is then rotary drilled by use of a flexible drilling collar made up of a series of short drill string sections interconnected by universal joints that terminate within an eccentric collar on the final drill string section. The eccentric collar is equipped with a sidewall engaging means to hold the eccentric collar from rotating during rotary drilling. A flexible collar (e.g., ball and socket) extending outwardly and downwardly from the far end of the final drill string section passing through the eccentric collar connects to a drill bit collar and rotary drill bit. A stabilizer/reamer of essentially the same size or slightly larger diameter than the drill bit surrounds the drill bit collar, thus producing a fulcrum for tilting the drill bit perpendicular to the well bore. The eccentric collar on the last drill string section that engages the well bore forces the deflection of the drill bit about the fulcrum and holds this orientation as the rotating drill proceeds forward. Such a technique can achieve a twelve foot radius of curvature in an existing oil or gas well bore for establishing lateral drain holes essentially horizontal to the otherwise vertical well bore.

High speed rotor balance system

Abstract: A balance system for a high speed bladed rotor includes a collar (28) with an inwardly facing groove (30) Balance weights (36) are located in the groove with a cover plate (44) retaining the weights and covering the weights, groove and slots (32) in the collar A compact arrangement is achieved with the weight close to the disk and windage losses are reduced

Premature infant bedding construction

Abstract: Improvement in apparatus, means and methods for receiving, holding and stabilizing the position of prematurely born infants; a bedding pad of particular configuration adapted to receive thereon the prone body of a prematurely born infant, such base or bedding pad having associated therewith a U shaped retainer, collar or peripheral wall of limited height adapted to receive therewithin, as well as be contained therewithin, most of the body (torso and legs) of the prematurely born infant in such manner as to stabilize the infant in the optimum resting and sleeping posture, as well as provide surfaces and structures against which the "premie" may lie, rest, push and interact in a manner conducive to the physical and mental health of the infant, there also being provided a loin cloth like harness longitudinally adjustable on the base pad and peripheral wall thereby to fit and receive the diapered bottoms of prematurely born infants of varying size; the surfaces with which the infant comes into contact, on the top surface of the base pad and the inner surface of the retainer collar or wall or the like most preferably being of lambskin, with the wool thereof in contact with or contactable by the said premature infant.

Terminator connector fitting for electrical box and conduit system

Abstract: A terminator fitting useful for connecting corrugated tubing to an electrical outlet box and including a cylindrical collar having first and second ends and a rib projecting radially inwardly from the collar for engaging an external rib on corrugated tubing placed within the collar. The collar carries circumferentially-spaced, axially projecting projections on one of its ends, with each such projection including a wedge-shaped free end portion. Each wedge-shaped end portion is joined to the first end of the collar by a web portion. The web portion, free end portion and collar define a groove for engaging the side wall of an outlet box when the arcuate projections are forced through an opening in the box to secure the fitting in the box. A plurality of blocking flanges are included in the terminator fitting with each blocking flange extending in a circumferential direction from a lateral edge of one of the wedge-shaped free end portions.

Emergency medical cervical collar

Abstract: The present invention is an emergency medical cervical collar suitable for land or water rescue operations. The collar more completely immobilizes the cervical portion of the victim's spine, and can be rapidly placed on the victim with minimal disturbance to the cervical portion of the spine. The collar includes generally U-shaped front and rear halves which are flexible, light weight, non-toxic, water resistant and buoyant in water. A flexible strap fastener is coupled to the rear collar half. Strap fastener guides are coupled to the front collar half so as to swivel thereon. Opposite end portions of the strap fastener are threaded through the strap fastener guides, and the strap fastener end portions are folded back and drawn evenly through the guides. The guides swivel as the collar halves are drawn together whereby the collar halves self-align. Each end portion of the strap fastener is provided with fastener material, and portion of the strap fastener therebetween is provided with mating fastener material so that the strap fastener end portions can be folded back and releasably attached to the portion therebetween whereby the collar halves are securely joined together as aligned. A second flexible strap fastener is coupled to the rear collar half so as to swivel thereon. The second strap fastener is looped around the person's head including the person's forehead, to prevent rotation or side-to-side movement of the head. A pad member is slideably mounted on the second strap fastener and is provided with a friction surface for engaging the person's forehead.

Mining tool retainer

Abstract: A retainer for a mining or construction bit which bit is carried in the bore of a mounting block and which has an annular groove forming a neck at the protruding end to receive a retainer. The retainer is a split collar which snaps over the neck of the mounting portion of the bit. The collar, either a molded ring or a spring steel member, has opposed curved axial projections which are dimensioned to fit into and be retained in the bore of the mounting block during the functioning of the bit in operation.

Rotor for electric motor

Abstract: A rotor for an electric motor including an iron core having collar portions at both end portions thereof, and a magnet placed on the outer periphery of said iron core The magnet is held at both end portions thereof between the collar portions

Swaged collar fastener

Abstract: Predetermined limits are attained for the peak loads encountered when a composite assembly of workpieces is secured with a swaged collar fastener, by disposing cavities in the cylindrical wall of the fastener collar to receive material flow during the swaging operation. Rotation between the collar and pin of the fastener is precluded by disposing abutting portions on the pin, which interface against the swaged material of the collar. Fastener cost reductions are achieved by decreasing the volume of a post-swage scrap portion on the pin and by concurrently fabricating grooves thereon with a rolling die, for various functional purposes. Swaging tool malfunction is avoided by eliminating land surfaces adjacent to grooves on the pin through which pull is applied thereto with the tool.

Instrument for manipulating compressible intraocular lenses

Abstract: An intraocular lens which is compressible to fit through a small ocular incision into the eye and whose refractive power is adjustable once the inserted lens has been reformed and remedially positioned in the eye. The lens includes a deformable soft optic, a translucent collar encircling the soft optic and attached to it at fixed spaced points, and haptics attached to the collar for remedially positioning the soft optic in the eye. The collar has a separation or break to define two collar arms. When the collar is compressed the arms slide relative to one another to narrow the collar, and the compressed lens can then be inserted in the eye. Once in the eye the collar is released and the arms reformed together to form a rigid circle supporting the soft optic. The soft optic is formed by a transparent bag having a thickened perimeter and filled with a transparent fluid. When the lens is in place in the eye, a fine needle can be inserted into the eye and into the bag perimeter. The amount of fluid in the bag is altered through the needle and the refractive power of the soft optic thereby adjusted as needed.

Mobile satellite receiving antenna especially for recreation vehicle

Abstract: A satellite transmission receiving antenna with unique mounting provisions for a recreational vehicle roof A generally cylindrical collar extends upward from the vehicle roof and attaches to a load distributing panel under the collar and over the area of the vehicle roof for load distribution A parabolic reflector is hinged along an edge to a generally horizontal turntable within the collar so that the reflector may be rotated to a concave downward position to act as a weather cover over the collar and also to provide smooth aerodynamic conditions during transport Rotation of the turntable through a motor driven gear coupling to the turntable effects azimuth positioning of the antenna and elevation angle is set by a linear actuator

End cap assemblies for conveyor rollers

Abstract: A conveyor roller comprises a steel roller tube fitted with end cap assemblies incorporating bearings for rotatably mounting the roller tube on a fixed shaft. Each end cap assembly comprises a rigid housing which supports the bearing, and a separate collar of resilient plastics material mounted on the housing. The axially inner end portion of the collar has an annular recess which receives a radial flange on the housing, and the axially outer end portion of the collar consists of inner and outer tubular walls which are spaced apart prior to fitting of the end cap assembly in the roller tube. The external surface of the inner tubular wall is curved radially inwards and axially outwards. Each end cap assembly is secured in position by swaging the end of the tube so as to force the outer wall of the collar against the inner wall along its length. The inner tubular wall of the collar may be of any suitable thickness, so that the end cap assembly can be adapted to fit roller tubes of different diameters by fitting the housing with a collar with an inner tubular wall of appropriate thickness. The radial flange on the housing may be formed with teeth and the axially inner end portion of the collar formed with tongues which project between the teeth so as to lock the collar to the housing for rotation therewith. In a construction in which the housing is made of steel, the teeth may engage the roller tube to provide an electrically conducting path therebetween for static electricity, or alternatively a wire of electrically conducting material may have one end clamped between the collar and the housing and the other end clamped between the collar and the roller tube.

Threaded fastener having minimized length and weight and method to make it

Abstract: A threaded fastener has a pin with a head, a cylindrical shank, a shoulder with reducing diameter, a radius at the least diameter of the shoulder whose region is work-hardened, and a threaded end, in that order. The thread extends into near-adjacency to the shoulder, and has no more than approximately one-half of a convolution of an incomplete thread at its end adjacent to the shoulder. A collar is threadable onto the thread. It has a counterbore no longer than the anticipated grip range plus approximately one-half of a thread pitch. The collar may be inherently torque-limited. The term "thread" also includes a peripheral groove.

Tubular concrete form collar

Abstract: A collar (10) for supporting a tubular concrete form (12) for cylindrical bridge supports or the like. The collar (10) includes cooperating sections (14) and (16) dimensioned for receiving the circumference of a tubular concrete form (12). The sections can be adjusted to receive forms (12) having various diameters. In the preferred embodiment, the collar (10) includes brackets (46) suitable for being connected to a frame (60) which support the collar (10) while concrete cures in the form (12). As necessary or desired, a template (66) is mounted on the collar for positioning anchor bolts (74) and (76) at selected locations in concrete curing in the form.

Exercise lifting bar with self-contained weight mounts

Abstract: An exercise lifting bar. A set of plates are pivotally mounted to each end of the bar. Each plate within a set is independently and pivotally movable relative to the bar. The plates are positioned between an outer collar threaded to the end of the bar and a spring housing rotatably mounted to the bar. The plates are movable to an aligned position allowing weights to be slipped thereover to facilitate removal or addition of weights to the bar. Plates located outward of the weights are then pivoted against the weights securing the weights between the outer plates and the spring housing. The collars are threaded inwardly tightly securing the weights between the outer plates and the spring housing.

Plant assisting device

Abstract: A device for assisting the growth of a plant by providing shelter and physical support therefor is taught in the preferred embodiment of a modular construction including a tubular section, a cover, and a collar. The collar provides a gradually curving continuous support to the upper growth portion of the plant for helping to reduce breakage of the plant from bending due to the weight of the plant. In the preferred embodiment, the collar includes arcuate sections of varying radii, with the first arcuate section connected tangentially to the tubular section, with the second arcuate section extending radially outwardly and continuously from the first arcuate section, and with the third arcuate section connected to and extending radially outwardly, downwardly, and continuously from the second arcuate section. An outer rim extends from the third arcuate section for reinforcing the collar. The collar is removably connected to the tubular section allowing the separate fabrication of the collar and the tubular section. The cover provides a weather barrier for the plant and is removably received either in the tubular section or in the collar.

Torque lock fitting arrangement

Abstract: A fitting having a collar defining a bore which accommodates a plastic tube. The collar defines a tapered seat on the end thereof. A tapered plastic ferrule surrounds the tube and cooperates with the tapered seat for compressing the ferrule into sealing engagement with the tube. The ferrule has an axial end face adapted to abut a deformable plastic gripper sleeve which surrounds the tube, the gripper being surrounded by a nut which threads over the collar. The gripper is disposed in a tapered bore in the nut. The gripper has a tapered exterior surface which extends at an angle which is slightly greater than the angle of the tapered bore. When the nut is threaded onto the collar, the differential taper causes an axial torque to be imposed on the gripper so as to radially distort the gripper into gripping engagement with the tube. The gripper has an axial end surface which, when nondistorted, is slightly sloped axially away from the ferrule as it projects radially outwardly. This end surface is distorted and flattened upon tightening of the nut on the collar so as to abut the end face of the ferrule.

Low profile suspension strut

Abstract: An improved automotive suspension strut isolator and jounce bumper upper mount providing a compact resilient assembly adaptable for a vehicle having a reduced hood line. The assembly comprises a collar member formed with an upstanding collar portion having a radially outwardly extending contact flange. An inverted cylindrical cup member is positioned in spaced relation with the collar separated by an elastomeric isolator. The cup member includes a return bend flange underlying the contact flange in an axially spaced manner. The cup member is sized to telescopically accommodate the upper end of the strut outer support casing at full jounce travel thereby lowering the overall strut height for a given vehicle attachment span. In one form of the invention the strut utilizes a convoluted dust shield as a jounce bumper.

Apparatus for retaining weights on a barbell

Abstract: An apparatus for retaining a weight on a barbell includes a collar member and a weight engagement portion. The collar member has an annular rigid outer section and a radially inner frictional gripping portion, and defines an opening through the collar member to allow the collar to closely and slidably receive the end of the barbell. The weight engagement portion is associated with the annular, rigid outer section of the collar member in such a manner that axially outward movement of the weight or axially outward force thereon will contact the weight engagement portion and/or increase the force thereon, causing the axis of the collar member to skew and/or increase its skewedness with respect to the axis of the barbell, thereby frictionally locking the apparatus onto the bar. This frictional locking may also be achieved by skewing the aforesaid axes by hand, separate and apart from any contact between the weight and the apparatus.

Pivoting knee brace with rotating and translating tibia collar

Abstract: A knee brace (10) is provided with a thigh collar (12) and a tibia collar (40) for securing the brace to the user's leg. A hinge (20) is connected to the thigh collar (12) and the tibia collar (40) in order to allow extension and flexion of the leg. The tibia collar (40) is connected to the hinge (20) via a connecting rod (26) upon which the tibia collar (40) may rotate and piston vertically. The desired range within which tibia collar (40) may rotate and piston may be adjusted by cams (34 and 36). An elastic wrap (56) is attached to the thigh collar (12) and the tibia collar (40) in order to facilitate proper rotation of the leg.

Method of assembling coupling to tubing or casting

Abstract: Precision makeup at high speed of the most used forms of pipe and casing for production wells is assured by a novel coupling system. A pipe collar is provided with an internal precision makeup ring whose length along the pipe axis assures precise positioning and engagement. When the nose of the pipe is engaged with metal-to-metal contact against a reference shoulder on the precision ring a side surface on the nose end of the pipe engages a center seal ring disposed in the side wall of the collar between the reference shoulder and the threaded portion. This seal constitutes an effective barrier against the leakage of high internal pressures into the thread engagement region. End seals are mounted in grooves in the end recess portions of the collar, outside the threaded engagement region, to provide seals against external pressure, which can also vent internal pressures that are in excess of a predetermined threshold. With this arrangement, a modified standard collar or a manufactured collar can be placed on a pipe or casing off the drill rig floor, with the axial length of the precision ring being selected to assure makeup tightness adjusted to particular axial stress conditions. Makeup on the rig floor requires only stabbing of the next pipe section into the collar and engagement until metal-to-metal contact is achieved and seals are concurrently established. Pipes and collars can readily be prescreened to eliminate a minor proportion of elements whose thread tapers vary more than is permissible for the given conditions. Fig

Animal collar and leash set

Abstract: An animal collar and leash for use in securing an animal which can easily be adjusted to meet animal size. The animal collar and leash are easily attached to an animal and easily removed.

Cementing of boreholes

Abstract: In a two-stage operation to cement the annulus between the wall of a borehole and a casing string (10), a stage collar (14) is inserted as a section within the casing string to enable cement to be pumped out through ports (18, 16) in the stage collar. The stage collar (14) includes a slidable sleeve (17) provided with an internal seat (19) which is engageable by lugs (54) of a pressure pack-off tool assembly (28). The tool assembly (28) is movable within the casing string to control both the opening and the closing of the stage collar. After the second stage cementing operation through the stage collar (14), an overpull is exerted on the drill string which, via the tool assembly (28), first closes and locks closed the stage collar and then breaks off the seat (19) which is lifted to the surface with the drill string. This leaves the borehole clear for the next drill bit without the need to drill out a collar, without any danger of leakage through the locked-shut stage collar (14).

Bellows for motor vehicle

Abstract: An oil and grease-proof bellows for enclosing joints on axles of motor vehicles is produced from thin thermoplastic elastomers using hollow body production techniques. The bellows has a relatively small diameter collar, a collar of relatively large diameter, and a bellows device disposed between the collars, with an inner envelope and an outer envelope that decreases in diameter towards the smaller diameter collar. At least one bellows rib extends spirally from one collar to the other.