Abstract: A debris barrier is installed and locked to the liner tieback extension. When it is time to check release from the liner before initiating a cement job the inner running string is lifted. The lock stays engaged to the liner tieback extension tube as the inner running string is lifted. In that manner the debris barrier remains in position during the lifting to determine release from the liner before cementing. After cementing, the inner running string is lifted further to eventually undermine the lock and capture the debris barrier to bring the debris barrier to the surface with the inner running string. The lock can be dogs or collets or the like. An inner sleeve or a lift sub with an upset can be the support whose axial movement beyond a predetermined value undermines the lock to release the debris barrier.

Abstract: An intramedullary nail and a targeting and/or nailing instrument includes a connector end which has an axially parallel projection which cooperates with an axially parallel recess on the hollow connection end of the nail. The engagement of the projection and recess fastens the nail under axial engagement on the connection end of the instrument in predefined rotational position on the instrument. A quick-fastener element engages in the connection end of the nail and has a first coupling element and the connection end of the nail has a second coupling element. The coupling elements are configured so that in a first rotational position relative to the axially parallel projection the instrument can be introduced into the connection end of the nail and in a second rotational position the coupling elements cooperate so that the nail is held axially fixedly on the instrument.

Abstract: A removable device for attaching two mechanical parts includes a pin removably locking a first part with respect to a second part, a retainer member on the pin and a resiliently loaded tension member which collaborate to prevent the pin from coming out of its locked position; the removable device further includes at least two inclined surfaces, the general shape of which is that of a projection oriented in the axial direction of the pin, such that when the pin rotates, the retainer member runs along the inclined surfaces and the pin moves between the locked position and unlocked position against a force exerted on the pin along a longitudinal axial direction of the pin exerted by the tension member.

Abstract: A coupling arrangement for coupling a light source subsystem with a scanner subsystem in a UV lithography system is disclosed. The arrangement includes a source flange having a plurality of ramped eared flanges coupled to one of the light source subsystem and the scanner subsystem. The arrangement also includes a collar coupled with the other of the light source subsystem and the scanner subsystem. The collar has a plurality of tangs disposed such that inter-tang spacings accommodate insertion of the plurality of eared flanges, wherein at least one of the source flange and the collar is rotatable to permit the plurality of ramped eared flanges to cam against the plurality of tangs, thereby coupling the light source subsystems to the scanner subsystem.

Abstract: The present disclosure relates to an arrester device for closing apparatus, such as doors, comprising a worm gear rotationally fixedly connected to an output shaft serving as a winding shaft and a self-locking worm which is in communication with an input shaft. In accordance with the present disclosure, an auxiliary worm gear is seated on an eccentric region of the output shaft with clearance, with the auxiliary worm gear having an eccentricity of the same amount as the output shaft and being assembled such that the eccentricities are cancelled with respect to the axis of the output shaft, with the auxiliary worm gear being able to follow the movement of the worm gear without load via its toothed region.

Abstract: Inner circumference projections of a driven coupling are engaged with inner circumference recesses of a drive coupling. Outer circumference projections of the driven coupling are engaged with outer circumference recesses of the drive coupling. A chamfered portion formed at each tip of the rotational leading-side side surface of the inner circumference projections is capable of contact with the leading-side side surface of each inner circumference recess. A rotational trailing-side circumferential end face of each outer circumference projection and a rotational trailing-side circumferential end face of each outer circumference recess are in surface-to-surface contact with each other. As a result, the drive coupling and the driven coupling can rotate integrally without rattling in the rotational direction.

Abstract: A camming coupler for removably attaching a music desk or other object to an upright support leg. The camming coupler includes an inner sleeve for receiving the upright support leg. The inner sleeve has at least one longitudinal slit formed therein, and preferably has four substantially equidistant longitudinal slits. The inner sleeve also has a cammed exterior surface. An attachment member extends from the inner sleeve, and is attachable to the music desk or other object. The camming coupler further includes an outer sleeve positioned over the inner sleeve. The outer sleeve has a cammed interior surface that corresponds with the cammed exterior surface of the inner sleeve. In use, the camming coupler is secured to a music desk or other object. An upright support leg is inserted in the inner sleeve, and the outer sleeve is rotated to compress the inner sleeve.

Abstract: A system for joining two components includes a rotatable locking member having a pair of diametrically opposed notches, a pair of diametrically opposed first sectors having a first radius, and a pair of diametrically opposed second sectors having a second radius larger than the first radius. A shaft is attached to and extends axially from the locking member. One of the components has a cavity and an opening for inserting the locking member into the cavity. The other component has a receptacle for holding an end of the shaft opposite the locking member so that the shaft holds the two components together.

Abstract: An adaptor for reducing the size of an original hole in a frame member to an adaptor hole sized to receive a selected bolt and which permits adjustment of the relative location of the adaptor hole relative to the original hole and the frame member. The adaptor comprises a washer plate having first and second projections extending outward from opposite sides of the washer. The adaptor hole extends through the washer plate and the first and second projections. The location of the adaptor hole relative to the first projection is different from the location of adaptor hole relative to the second projection.

Abstract: For the purpose of stably securing an apparatus to be installed by a simple process, a positioner for securing to a floor an apparatus having positioning holes for receiving therethrough anchor bolts implanted upright in the floor, the positioning holes having a diameter substantially larger than that of the anchor bolts, comprises: a first cylindrical bushing member 21 having at an eccentric position a through hole 21c of a diameter for rotatably fitting one of the anchor bolts; and a second cylindrical bushing member 20 having at an eccentric position a hole 20c of a diameter for rotatably fitting the first bushing member 21, the second cylindrical bushing member rotatably fitting in one of the positioning holes provided in the apparatus to be positioned.

Abstract: Embodiments of the present invention are directed to a storage shed that is strong, durable, low-maintenance, easy to assemble and use, and relatively inexpensive to manufacture and ship, and can be mass produced. In one embodiment, an attachment device is provided for attaching a support post to a floor having a top, a bottom, a floor opening between the top and the bottom, and a side edge. The attachment device comprises a floor locking nut configured to be rotatably supported at the bottom of the floor. The floor locking nut includes a nut bearing surface disposed adjacent a nut aperture and facing downward from the bottom of the floor. The nut bearing surface includes an inclined surface leading to a raised surface.

Abstract: A system for joining two components includes a rotatable locking member having a pair of diametrically opposed notches, a pair of diametrically opposed first sectors having a first radius, and a pair of diametrically opposed second sectors having a second radius larger than the first radius. A shaft is attached to and extends axially from the locking member. One of the components has a cavity and an opening for inserting the locking member into the cavity. The other component has a receptacle for holding an end of the shaft opposite the locking member so that the shaft holds the two components together.

Abstract: A system for joining two rails includes a rotatable disc in a slot in an end of a rail, where the disc has a pair of diametrically opposed notches, a pair of diametrically opposed first sectors having a first radius, and a pair of diametrically opposed second sectors having a second radius larger than the first radius. A movable stopper in the rail is urged into the slot at a position where the stopper engages one of the first sectors when a pin in the rail engages one of the notches, and one of the second sectors is between the one first sector and the notch engaging the pin.

Abstract: An expandable rod of a tree pruner is formed of an outer tube and an inner tube, which are located by a drive block and a stop block such that a first end of the drive block is retained in a first tightening recess and stopped by a first check edge of a first protrusion of the stop block, and that a second end of the drive block is retained in a second tightening recess and stopped by a first check edge of a second protrusion of the stop block.

Abstract: A locking device for use in retaining rotationally interengaged components in engagement with one another, the device comprising a body member (16) adapted to be located between adjacent interengaging formations (13, 14) on the components to prevent relative rotation of the components, and a wire retaining member (17) adapted to locate the body member in position, the retaining member comprising at least two hook-like members (18) engaged in spaced apertures (20) in the body member, each hook-like member having first and second portions (18B, 18C) extending beyond the body member into engagement with inner and outer surfaces of one of the components.

Abstract: An extension handle apparatus includes an elongated sliding member telescopically received within a tubular receiving member, and a lock assembly for releasably locking the sliding member in any selected axial position relative to the receiving member upon relative rotation between the sliding member and the receiving member. The lock assembly includes a cam supported on the sliding member within the receiving member and includes an elongated body defining a longitudinal axis of the cam and possessing a non-circular cross-sectional shape presenting major and minor diameters through the longitudinal axis that are offset from one another by 90. The assembly also includes a shoe of generally C-shaped cross-section supported on the cam body. The shoe includes an axial opening of non-circular cross-sectional shape corresponding to the cross-sectional shape of the cam body, and the opening presents major and minor diameters through the longitudinal axis of the shoe that are offset from one another by 90.degree..

Abstract: The present invention relates to a shaft-hub linkage which has a plurality of wedge-shaped projections on the peripheral surface of the shaft and a corresponding number of wedge-shaped recesses on the inner peripheral surface of the hub.

Abstract: An eccentric assembly has a one-piece mainshaft with a groove extending part way around its periphery. An eccentric ring has an off-center opening which receives the mainshaft, with part of the ring received by the groove. An arcuate-shaped insert with a tapered hub is received by the ring opening between the shaft opposite the groove and a frustoconical portion or the ring opening so as to claim the ring, shaft and insert together.

Abstract: An ironing accessory is adapted to be releasably carried on the discharge nozzle of a standard hair blow dryer and includes a flat plate having multiple openings discharging hot air from the nozzle. A cylindrical collar carried on the plate insertably receives the nozzle, and resilient grippers are disposed in a radial arrangement on the inside of the collar for releasably attaching with the nozzle. A cam arrangement is carried on the inside surface of a retaining ring and, rotatable therewith, advances the grippers into engagement with the nozzle as a ratchet mechanism retains the grippers in position as the ring is rotated. Resilient pushbuttons disconnect the ratchet mechanism to release the grippers for nozzle removal.

Abstract: A reversible thermal compensation joint having a ceramic fairing (20) with a spindle (24) slidably engaged within a metal hinge housing (22). The spindle (24) has a groove (28) with inwardly converging side walls (36) and a flat bottom (38) in which is seated a plurality of arcuate ring sections (30). The ring sections (30) have inwardly converging sides (40) that substantially match the side walls (36) of the groove (28). The ring sections (30) are formed of the same material as the hinge housing (22), such that upon thermal expansion of the reversible thermal compensation joint (10), the ring sections (30) slide up the walls (36) to maintain a tight fit with the expanding hinge housing (22).

Abstract: This device for actuating a tip-up or sectional door comprises an elongated frame structure supporting a linearly movable member driven through a worm screw or a chain connected to the door to be driven, and secured at two upper points of which one is located at one end of the frame structure. This one end is secured to a fixed support formed with a vertical notch of which the bottom edge has a groove formed therein, the upper edge of this notch being limited by a surface located at a predetermined distance from the groove bottom. The frame structure comprises a support surface, for example in the form of a pin, and a locking surface, for example in the form of another pin, located at a distance from the first pin which corresponds to the predetermined distance. This frame structure can be fitted by a single person by anchoring the lower pin of the support and then raising the frame structure to a substantially horizontal position, so as to lock automatically the device in its operative position.

Abstract: A combination umbrella and golf ball retriever which uses the umbrella strut as a socket pipe to accommodate several telescopically nested tubes so as to form an elongated handle for a golf ball retriever. There is an eccentric-grooved stud inserted at one end of the inside tube of each two neighboring tubes. The eccentric-grooved portion of this stud matches with a similar eccentric circular bushing. When the inner tube turns to one direction, the outside part of the circular bushing will press tightly against the inner wall of the outside tube and lock up the two neighboring tubes. An opposite turn at the inner tube will set loose the circular bushing and allow both neighboring tubes to slide in and out freely so as to adjust the length of the handle of the golf ball retriever.

Abstract: A coupling for fastening two members whose opposed faces keep an equal gap and are free to relatively displace to the left or right, wherein a wedge inclining with an angle narrower than the friction angle to osculate each of the opposing face of the members, is capable of wedging the opposing faces by relative displacement of the members toward the rising side of the wedge. The coupling is arranged on the left and right respectively in the direction of relative displacement of the members, so that two members can be coupled plainly, rigidly and free from lowering of the axis strength, permitting an easy phase adjustment or dividing or the like.

Abstract: A holder for a cannister having a valve which is typically used for aerosol spraying is provided. The holder securely grips a cannister bead and is provided with a handle having a valve actuator for actuating the valve on the cannister. The holder provides improved stability by surrounding and supporting the body of the cannister so that it can be shaken or moved rapidly without disengagement from the cannister.

Abstract: A device is disclosed for use with adjustable rotary controls such as potentiometers that have a push and/or pull feature to provide a means for locking the control knob and to provide varying amounts of drag force to aid in fine adjustments. A locking shoe assembly having integral locking shoes with cam surfaces is attached to the control panel with the rotary control shaft extending through its center. A locking knob with internal cams fits over the locking shoe assembly and is held in place with an annular retention ring. A control knob with an integral land surface is attached to the rotary shaft and extends into the locking shoe assembly. Rotation of the locking knob engages the various cam surfaces thus binding the land surface and the control knob.

Abstract: A bearing locking assembly has a sleeve that fastens an inner race ring of an anti-friction bearing of either a ball or roller design to a rotatable shaft. The sleeve is split longitudinally, enabling the sleeve to be compressed radially for slipping axially within a bore of the ring. Upon release of the compression, the sleeve expands in diameter so that a central portion of the sleeve keys the sleeve axially in place within the ring bore. The sleeve, with the ring mounted thereon, slips axially upon the shaft. External cylindrical surfaces at the end portions of the sleeve are eccentric, and internal cylindrical surfaces at the end portions of the ring bore are eccentric. Angular rotation of the ring relative to the sleeve causes engagement of the eccentric cylindrical surfaces to tighten the sleeve about the shaft, while the concentric portions of the sleeve and the ring maintain the ring centric relative to the shaft.

Abstract: A locking system which enables a pair of telescoping members to be slidably movable with respect to each other and locked in a pre-determined position. The outer telescoping leg is generally of cylindrically configuration and has an aperture therein. A sleeve, also having an aperture formed therein, is rotatable about the outer surface of the outer leg. A brake lug is positioned in the leg aperture and the sleeve aperture is of tapered thickness about the leg axes. Rotation of the sleeve about the outer leg causes the brake lug to press against the outer surface of the inner leg and prevents the legs from moving along the leg axes.

Abstract: A reciprocating member and a retainer cooperate to limit rotation of the reciprocating member in a bore. Grooves in the reciprocating member cooperate with corresponding portions of a retainer to guide the reciprocating member and limit rotation of the member in the bore due to the compressive engagement of a portion of the retainer by the bore.