Showing papers on "Collar published in 1984"

Device for transmitting to the surface the signal from a transmitter located at a great depth

Abstract: A device for transmitting signals from a transmitter at the bottom of a drill well to the earth's surface including a drill collar which extends in an axial direction, a transmitter disposed in the drill collar, a cylindrical metal sleeve from forming part of an antenna for electromagnetic wave transmission, the cylindrical metal sleeve being disposed around the drill collar and connected electrically to the transmitter, the cylindrical metal sleeve having a diameter greater than the diameter of the drill collar and having an axial length shorter than the axial length of the drill collar, and an insulating sheath disposed between the cylindrical metal sleeve and the drill collar, the insulating sheath having an axial length shorter than the axial length of the drill collar.

Device for connecting two pipe ends

Abstract: At least one of the pipe ends to be connected is constructed as a collar with a spherical circumferential external contour. A clamping ring (9), which is provided on its inner wall at both ends with a section that is formed such that it is complementary to the external contour of the collar (3a, 4a), and at least one sealing sleeve (7), which is arranged between the collar inner wall and a pipe (5) pushed into the collar, are provided. A locking device (8; 12), which is formed on at least one longitudinal section such that its external contour is complementary to the internal contour of the clamping ring section (9b) that does not grip the collar, is pushed onto the pipe (5) which has been pushed in. The clamping ring (9a, 9b) encloses the collar (3a, 4a) and a longitudinal section (shaped in a complementary manner) of the locking device (8; 12). If both pipe ends are shaped to form a collar (3, 4), a common intermediate pipe (5), which is aligned internally with the pipe inner wall, is pushed into both collars, and at least one sleeve-like sealing element (7), which engages over the collar edge, is arranged between each collar inner wall and the intermediate pipe. At least one locking device (8; 12) whose external contour is complementary to the clamping ring inner contour is arranged on the intermediate pipe (5), adjacent to each collar edge. Each collar (3a, 4a) and its associated locking device (8; 12) is in this case surrounded by an associated clamping ring (9a, 9b) (abstract incomplete)

Drill collar length is a major factor in vibration control

Abstract: Drill collar length directly affects the overall vibration response of drillstrings. Drill collar length is partly responsible for severe vibrations in hard rock drilling but can also be the solution to vibration control. This paper gives a new interpretation to the cause and control of drillstring vibrations and presents the results in terms of formulas that can be directly applied by the drilling engineer.

Shelving apparatus and method of assembling same

Abstract: Shelving apparatus comprises a post (10), a collar (14) configured to be placed flushly against one side of the post (10) with two collar guide bars (15) extending outwardly from the opposite sides thereof, and detent means (12/18) or fixedly locating the collar axially along the post (10). The apparatus also includes a support (20) having a recess (25) configured to be placed flushly against another side of the post. The support recess is formed with two slots (27) configured to receive and to wedge into gripping engagement the two collar guide bars for drawings the collar and support tightly about the post.

Movable multi-contact electromechanical connection

Abstract: An improved electrical connection capable of mechanical movement for providing an electrical connection between a rotatable terminal pin and an external pacer terminal casing in an improved cardiac pacer lead is disclosed. The pacer lead includes an elongated terminal pin at its proximal end that has a generally cylindrical cross-section which extends through an axial bore of an external retaining collar, a coupling and an insulating sleeve and terminates in engagement with an electrode at the distal end at the pacer lead. The retaining collar has a counterbore that defines an annular cavity between the collar and the terminal pin which accomodates an electrical connecting coil. The connection coil has a configuration wherein individual coil turns are circumferentially offset from adjacent coil turns and project radially outwardly from the axis of the coil. The coil is assembled over the terminal pin and within the collar counterbore so that the turns of the coil springly contact both the terminal pin and collar counterbore to create an electrical contact between them that allows rotation of the terminal pin within the collar.

Drug-injection animal capture collar

Abstract: A drug-injection animal collar includes electrically operated drug injection darts or syringes that are controlled by control circuitry mounted on the collar which may be preset and self-timed and actuated, or may be remotely actuated by radio signals. The collar is placed on the neck of an animal and upon receipt of a signal, a suitable drug is injected into the neck muscles of the animal. The collar and its method of operation allow regular recapture of individual animals at will for research purposes. The collar and darts may be reconditioned and then reused. The power for operation is also contained in the control package carried by the collar.

Ice dispenser for a household refrigerator

Abstract: An ice piece dispenser comprising a receptacle for storing ice pieces and including a front plate having a discharge opening therein. There is provided a dispenser horizontally supported in the receptacle and includes a rotatable feed section having an inlet end and a discharge end with a central axle therebetween, the feed section comprising a cylindrical collar adjacent the front plate and a double bladed screw auger within the collar forming two helical passages. The blades of the screw auger extend from the central axle to the collar and are spaced rearwardly from the front plate with the trailing edge of each blade being curved rearwardly between the axle and collar sufficiently to prevent ice pieces being wedged between the front plate and the blades during rotation of the feed section. A wire auger which is rotatably driven is secured to the feed section for rotation in unison therewith.

Uncouplable two-freedom joint

Abstract: PURPOSE:To facilitate coupling/uncoupling of rotary shafts by mounting a collar through a spring to one rotary shaft while engaging a pin on one rotary shaft disengagable with pin groove made at one end of collar. CONSTITUTION:A collar 18 is mounted on a drive shaft 1 through a coil spring 14. Pin groove 15 to be engaged with a pin 16 provided at the joint 17 of drive shaft is made in said collar to be rotatable with the drive shaft. While a pin 20 is provided at the joint 21 of driven shaft 6. A pin groove 19 having one open end is made in the axial direction at the driven shaft side of collar engagable with the pin 20. Coupling/uncoupling of said shafts are performed through axial motion of collar in the axial direction against the resiliency of coil spring.

Stud for mounting and method of mounting heat sinks on printed circuit boards

Abstract: A stud with a threaded shank at one end and a flat head at the other end. Between the threaded shank and the flat head is a collar of smaller diameter than the head, but of larger diameter than the threaded shank. The collar has a knurled portion adjacent the head to secure the stud to a printed circuit board. At the juncture of the collar with the threaded shank, the collar forms a shoulder or seat upon which the heat sink and the semi-conductor case rest in spaced relation with the printed circuit board. A nut is then threaded onto the shank to secure the stud, the heat sink, the semi-conductor case and the printed circuit board to each other.

Syringe for medical applications

Abstract: 1. A syringe for medical purposes having a needle mounting piece (3) forming a connecting neck (10) for mounting the injection needle (12) on the cylinder neck (2) of the syringe cylinder (1) and having a covering cap (4) engaging on the cylinder neck (2) and holding the needle mounting piece (2) on the syringe cylinder (1), the covering cap (4) having, on its side facing away from the cylinder neck (2), a collar (11) which encases the connecting neck (10) on the outside so as to form a sealing-tight seal and which consists of a substantially less elastic plastics than the rubber elastic material of the needle mounting piece (3) so as mechanically to stiffen the connecting neck (10), characterised in that the connecting neck (10) forms an elastic annular collar (14) on the end towards the needle, the annular collar radially outwardly overlapping the annular face (15) of the collar (11) on the end face as far as the outer casing surface (11') of the collar (11) and forming an annular seal with respect to a needle sleeve (13) or tip cap (7), which carries the needle (12) and which is disposed on the collar (1).

Pull-apart mounting hub

Abstract: A pull-apart mounting hub for mounting a scrubbing pad or the like to a drive disc on a power-driven scrubbing machine or the like. The hub has two parts: a base mounted to the drive disc, the base having a cylindrical collar and an annular shoulder; and a split-ring retainer. The split-ring retainer is resilient and generally cylindrical, and includes a retaining flange extending radially outwardly for retaining the pad, an annular lip engageable with the annular shoulder of the collar to lock the two pieces together, and a tab adjacent the split for urging the lip adjacent the split out of engagement with the annular shoulder of the collar to enable the retainer to be removed from the collar.

Swivel hose coupling assembly and method

Abstract: A swivel hose coupling assembly and method provides a collar having an angularly inwardly disposed locking annulus. The angular disposition of the locking annulus permits a novel method of assembling the swivel hose coupling members. In a preferred form, the assembly is designed for affixation to one end of an elastomeric hose, and includes a cylindrical insert having a serrated external surface at one end thereof, a shoulder at an opposing end, and a locking groove intermediate the serrated surface and shoulder. A fitting is rotatably mounted over the insert, the fitting having a mating shoulder for contact with the shoulder of the insert. An annular collar is concentrically positioned over an exposed end of the fitting, a first end of the collar containing the locking annulus being inserted first over the serrated portion of the insert. A force is then applied to the second end of the collar, causing the locking annulus to be forced against a rearwardly disposed wall on the fitting and to distort same radially inwardly into the locking groove of the insert. The result is a simple three-part assembly which may receive a hose end for conventional crimping between collar and insert.

Remote controlled crane hook coupler

Abstract: A remote operable coupler for rapidly connecting the loading hook of a crane, or the like, to a load to be hoisted comprises a load collar that is attached to the load and an upper unit support on the crane hook. The load collar has a funnel shaped aperture vertically aligned therethrough and the upper unit has a depending lifting tube that is lowered into and through the funnel in the collar. Steel balls are located in radial holes near the bottom of the lifting tube and normally are recessed into an annular groove near the bottom end of a cam rod in the bore of the lifting tube. The cam rod is automatically moved by an actuator controlled by a switch that detects the seating of the lifting tube in the load collar to force the balls outward and against a locking shoulder in the bottom of the load collar funnel, and disengagement of the balls is made by a remote operator by either a radio control signal or an electrical signal that reverses the movement of the linear actuator and the cam shaft thus permitting the balls to fall back into the annular groove.

Container with collar

Abstract: A container 10 e.g. an aerosol container, having a contents release button at one end, has a collar 15 which is a snap fit over a peripheral rim of the container. Angularly spaced internal formations 18 on the collar wall 16b cooperate with the container rim 13 and angularly spaced outward strengthening ribs 20 are formed in the collar which has a central aperture to permit access to the button. The collar is mainly for decorative purposes. Formations 18 are formed by bending or stamping inwardly the material of wall 16b.

Medical solution container and port construction therefor

Abstract: A medical solution container having an outlet port with a neck that includes a tapered annular collar for slidably and sealingly engaging the hollow spike of an administration set. The inner and outer surfaces of the tapered collar slope inwardly, the collar defining an opening that is smaller (when the collar is unstretched) than the reduced portion of the bore of the neck communicating with that collar, thereby helping to assure effective contact between the collar and an inserted spike.

anti-vibratory support device for a pipe whose thickness is small compared to the diameter

Abstract: Anti-vibratory support device for a pipe whose thickness is small relative to its diameter, comprising a collar (2) formed by at least two rigid annular sectors (2a, 2b, 2c) which are articulated at at least one of their ends to the succeeding sector, to pivot about an axis parallel to the axis of the pipe (1). At least two successive sectors (2b, 2c) are interconnected by an elastic junction means (10, 11, 12) which enables the collar (2) to be closed. Parallelepipedic pads (18) made from knitted stainless steel wire disposed in cases (15) are interposed and put under compression between the collar (2) and the pipe (1). The invention is in particular applicable to pipes conveying liquid sodium of the secondary circuit of fast neutron nuclear reactors.

Training halter for canines

Abstract: A dog's training halter comprises a loop member for encircling the dog's muzzle, a collar member for encircling the dog's neck, and side members for connecting the loop member to the collar member on opposite sides of the dog's head. The loop member passes through a cinch ring for connection to a leash, and an upper connecting strap or rope connects upper portions of the muzzle loop and collar members together along the top of the dog's head.

Rotatable shaft assembly

Abstract: A rotatable shaft assembly comprising a body with a bore having a first end and a second end and an annular abutment formed intermediate the first and second ends of the bore and extending radially inwardly into the bore, a shaft or stem rotatably received in the bore, said shaft having a reduced diameter portion forming an annular shoulder which faces the second end of the bore, a retaining collar disposed in the bore adjacent the abutment, the retaining collar including an annular band and a plurality of resiliently, radially deflectable fingers depending radially inwardly from said band, each of the fingers forming a strut portion terminating in a free end which engages the shoulder on the shaft upon movement of shaft toward the second end of the bore and a stop member disposed in the bore for stopping movement of the retaining collar toward the second end of the bore.

Double-taper slip-on drill string stabilizer

Abstract: A slip-on stabilizer is provided for adjustable positioning along a drill collar. The stabilizer includes a body positioned around the drill collar with a threaded section on each end and at least one tapered inner surface with the tapering surface beginning at the end of the interior threads and tapered to a generally narrower interior diameter; a plurality of slip segments with at least one tapered surface complementary matching the tapered surface of the stabilizer body; a locking pin and threaded end caps forcing the slip segment toward the center of the stabilizer body thereby wedging the slip segments against the drill collar by screwing the end cap into the body and thereby clamping the stabilizer body assembly onto the drill collar.

Drainhole drilling assembly with oriented elliptic drill collar

Abstract: In deep drainhole drilling, a specially oriented drill collar of generally elliptic cross section is combined with a drill bit, a downhole motor and means adapted to deflect the bit to drill the build section of the drainhole curving at a medium angle of 2° to 50° per hundred feet. Preferably, the drill collar is at least twenty feet long. The elliptic drill collar is oriented in a manner such that the minor axis of the ellipse lies generally in the direction of the intended curve of the build interval. For the desired vertical build, this places the locus of the minimum axis of the ellipse toward the vertical and the locus of major axis toward the horizontal when the curved interval of the drainhole approaches horizontal. Preferably, the minor axis is at least twenty percent shorter than the major axis. An elliptic drill collar combined and oriented in this manner will produce significant torsional resistance because the bending moment required to deflect the collar about its minimum axis is significantly less than with a collar deflected about its major axis. This stabilizes the orientation of the assembly during drilling operations. The minor axis may be misaligned with direction of build to generate forces to counteract drill motor reactions. The deflecting means may be a bent motor housing, a bent sub, a bent elliptic drill collar or any other suitable deflecting means.

Clothes drying device

Abstract: A portable, collapsible and light weight household device as provided and having a plurality of spider-like arms extending from a mast. The spider assembly can be mounted to the mast with the arms extending upwardly wherein the associated cables may be used to support clothes for drying. If the spider assembly is inverted with the legs pointing in a downward direction, the device can be used as a patio umbrella if covered with a tarp, piece of plastic or the like. Collar members are fitted about the mast and permit the spider assembly to be positioned at any convenient height. A drawstring arrangement allows the spider to be easily folded and unfolded.

Orthopaedic cervical collar

Abstract: An orthopaedic cervical collar (1) comprises two parts (2,3) interlocking approximately in the manner of a telescope, so that the height (H) of the collar (1) can be adjusted and fixed by a relative displacement of the lower part (3) of the collar relative to the upper part (2) of the collar. In order to make this height adjustment an adjustable expansion part (4) is provided between the two collar parts (2 and 3). According to a special embodiment this expansion part essentially comprises a tubular section having elastic walls with a valve (8). The preferred pressure medium is air. With such a collar (1) the patient can easily increase its height (H) himself, for example with an air pump and thereby execute extensions at the required times and to the required degree. The patient can also increase or reduce the extensions, reduction being effected, for example, by letting off air from the tubular section (7) via the openable valve (8). Where appropriate, the tubular section (7) can also be designed to comprise several parts, e.g. three sections distributed over the circumference in order to achieve a tilting movement on extension.

Cementing apparatus and methods

Abstract: In drilling a well, sections of casing are run down a borehole, preferably with a float shoe at the lower end which is equipped with a double valve enabling the casing to fill with drilling mud both while the casing is moving down and also while it is stationary. Within the casing is a baffle collar which defines a socket for a latching dart carried by a plug. The plug and dart are driven down to the collar, when the pumping of cement into the casing has been completed, by a launching dart which also closes the passageway through the plug.

Terminal pin securing arrangement

Abstract: An arrangement for connecting a terminal pin to a printed wiring board conductor via an electrically conductive elastomeric collar positioned about the terminal pin and pressed into a plated through hole connected to the conductor. Ridges are formed on an outer surface of the collar and a tapered lead-in is provided at one end of the collar to permit engagement with and the formation of contact areas between the collar and the plated through hole. The collar additionally may include a drive shoulder at an end opposite the end containing the tapered lead-in. Projections may be formed on the terminal pin which engage cavities formed in the inner wall of the central bore within the collar to retain the terminal pin within a collar. The collar may be of electrically conductive or electrically non-conductive material.

Front fork for a two-wheeled vehicle

Abstract: A strut for a front fork of a two-wheeled vehicle including an inner tube, an outer tube and a cushion spring resisting the telescoping of one tube toward the other. A damping mechanism is illustrated also using damping fluid. Bearings are provided between the inner and outer tubes which include a collar slidably mounted to one of the tubes. A circular bearing is positioned adjacent the collar to retain the collar relative to the other tubes. The collar may move with the tube on which it is mounted through a preselected distance at which time it is constrained by the other tube. A spring biases the collar away from the stop provided on the other tubes such that some relative motion between the tubes can occur prior to the sliding of the collar along the tube upon which it is mounted.

Centralizer band-collar connection

Abstract: Improvements in well bore centralizers; improvements in centralizers which may be shipped by the manufacturer unassembled, occupying a small volume of space, and later assembled; a field-assemblable casing centralizer consisting of a pair of collars and connecting outwardly bowed leaf springs secured to the collars by a cooperating leaf spring end and collar structure and relief thereof permitting both rivet and weld attachments.