36 results about "Clevis fastener" patented technology

A variable angle connection between a spinal rod (A) and a vertebral anchor (B) with a clevis (3) to attach to the vertebral anchor, permitting the vertebral anchor to be longitudinally offset from the connecting point on the rod. The connection assembly has a bolt (2) with an aperture (6) for receiving a portion of the spinal implant rod at one end. The assembly also has a clevis (3). The clevis defines a bore (7) to hold a portion of the vertebral anchor and the ears (8, 9) of the clevis have holes through which the bolt is located with the bolt rotatably connected to the ears. The assembly also has a rod interface washer (4) positioned over a portion of the bolt, between the aperture (6) of the bolt and the inside ear of the clevis. The rod interface washer is partly movable between the aperture of the bolt and the clevis, but the washer is fixed against rotating in relation to the bolt. Finally, the assembly also includes a compression member (5) that pushes the rod toward the vertebral anchor so that the inside and outside ears of said clevis are pressed together and the clevis is tightened the vertebral anchor.

A surgical tool and method of operation are provided. The surgical tool includes an end effector, such as a surgical scissor. The end effector is coupled to an actuating mechanism having a clevis and a pulley. A cable engages the pulley and is attached to one side of the clevis. When one portion of the cable is pulled, the clevis is moved in a first direction causing the end effector to open. When a second portion of the cable is pulled, the clevis moves in the opposite direction and the end effector is closed. The system also includes a mechanism for changing the orientation of the end effector. Another embodiment includes a mechanism for actuating the cable and the end effector.

In a side-pull hoist ring having a load carrying ring, a clevis pivotally supporting the load carrying ring for rotation about a first axis and a post assembly extending through the clevis and fixedly engageable with a threaded bore on a load for allowing 360 DEG rotation of the clevis about a second axis generally perpendicular to the load. The post assembly includes a lower support bushing with a large diameter lower load bearing flange and a bolt receiving passageway coaxial with the second axis; a bolt extending through the passageway into the threaded bore of the load where the bolt has a head carrying an upper flange member coacting with the lower flange to capture the clevis and a shank. There is a first cylinder groove in the passageway and a second cylindrical groove around the shank. The grooves are axially aligned when the lower flange and the upper flange capture the clevis. An arcuate spring element having a collapsed shape generally retained in the second groove and a relaxed shape bottomed out in the first groove and extending between the first and second grooves prevents non-destructive axial removal of the bolt from the bushing. The clevis is formed from extruded steel, bar stock or a steel plate.

An adjustable mounting system for a telescopic scope includes an adjustable elevation mount formed from a scope ring and an adjustable sub-base. A clevis portion of the scope ring holds an elevation pin that is received by a vertical slot in the adjustable sub-base. An internally longitudinal bore is disposed though the adjustable sub-base and an externally threaded barrel disposed in an opening of the longitudinal bore. A cylindrical elevation cam having an angled slot is disposed in the longitudinal bore and includes a positioning rod that extends through a bore disposed through the barrel. The angled slot receives the elevation pin as it extends through the vertical slot of the adjustable sub-base. The positioning rod has a shoulder portion that receives a set of roller thrust bearings and has a threaded distal end. An internally threaded dial thimble extends over the positioning rod distal end and shoulder portion to engage the external threads of the barrel. A thimble locking nut engages the threaded distal end of the positioning rod so as to affix the dial thimble to the positioning rod. Bi-directional longitudinal travel of the elevation cam is accomplished by rotation of the dial thimble.

A coupler for to which a shaft is attachable is provided. includes a base. The base is formed with an upper side and an lower side. The lower side is substantially a flat planar surface. Means are provided for mounting the base on a curved surface. A preferred means is one or more ball washer assemblies. In addition, the present invention includes a tub that is adjustably connectable to the base. A plug is provided that is repositionably attachable to the tub. In addition, a neck is provided. The neck is insertable into the plug. The neck also is formed to support a shaft. The invention includes a clevis mechanism that is slidably and demountably engageable with both the plug and the neck.

A razor includes a handle and detachable blade cartridge. The end of the handle has a pivot sphere upon which the blade cartridge is rotatably mounted, with freedom to pivot around three axes of the handle, and otherwise holds its orientation relative to the handle. The blade cartridge is held to the pivot sphere by a clevis having recesses defined in at least the inner side surfaces of its legs. The recesses, together with the clevis, are sized to admit the pivot sphere between them and to hold the sphere therein once admitted. The clevis and / or the pivot sphere can be formed of a resilient injection molded plastic. The range of motion of the blade cartridge can be limited by forming one or more stops on the pivot sphere to interact with the clevis and thereby interrupt its free rotation.

A clamp for securing apparatus such as end-of-train equipment to a railroad coupler head includes a first finger member that is mounted to pivot about a pivot pin in scissors-like manner between a fixed second and third finger member affixed to a housing, a threaded rod and cooperating piston for pivoting the first finger member away from the fixed second and third finger members, a rail member for abutting against an outside surface of the coupler head, and a crank and handle for tightening the grip of the first, second and third fingers on the inner surfaces of the core hole when the crank is rotated. The pivoting of the first finger member is accomplished by driving a pin through a slotted clevis defined in a first end of the first finger member, such that the pin moves within the slot defined by the clevis when the pin is driven in one lateral direction generally toward the fixed second and third finger members, thereby urging the clevis downward about the pivot pin and urging the opposing second end of the first finger member to move upwardly away from the fixed second and third finger members. In a preferred embodiment, end-of-train signaling and monitoring equipment is connected to the clamp for the railroad coupler head.

A surgical end effector includes a clevis and two jaws pivotally coupled to the clevis. A wire is coupled to each jaw and extended through a guide way in the other jaw and through an end of the clevis. The jaws may be opened and closed by pushing and pulling on the two cables. Pulling on each wire creates a closing force in both jaws. A rocking pin may be pivotally supported by the clevis and pivotally coupled to the jaws to constrain the jaws to have opposite motions. The clevis may be coupled to an elongate shaft and the wires extended through the shaft to provide an endoscopic instrument. A wire guide may support the wires in the shaft such that they are able to transmit a compressive force without buckling. The wires may carry electricity to the jaws for electrocautery.

A gimballed joint includes an annular bellows seal circumscribed about a joint centerline mounted within forward and aft shrouds having clevises with lugs and a threaded hole disposed through each of lugs. A ring circumscribed about the lugs has counterbored holes. Each of the counterbored holes is aligned with one of the threaded holes. Pins having heads and shanks extending inwardly therefrom are disposed through and the heads engage the counterbored holes. Externally threaded portions of the shanks are threaded into internally threaded holes in the each of the lugs. A key is disposed through a key hole extending inwardly through each of the heads and through threaded together portions of external threads of each of the externally threaded portions and internal threads of each of the internally threaded holes. In one embodiment wear bushings are disposed in the counterbored holes between the heads and the ring.

Compositions are provided for a prosthetic ankle comprising: a joint housing having a bottom surface, a clevis coupled to the joint housing such that the clevis can rotate about the joint housing, a prosthetic coupling structure that couples the clevis to an amputee, and an articulating joint contained in the joint housing. Additionally, a portion of the bottom surface of the joint housing can be curved allowing a substrate a preset amount of flexion when coupled thereto and flexed in a concave position.

The present invention pertains to extension arm apparatuses that are adapted to support user devices throughout a range of positions. A given apparatus may include one or more arms that position the user device remotely from a support position. An extension and retraction device such as a gas cylinder is received within each arm, and provides a force to support the user device as the arm is placed into a given position. A variable force clevis is connected to the extension / retraction device within the arm. The variable force clevis is connected to a pair of locations in the arm as well. As the arm moves, for instance up or down, the variable force clevis rotates within the arm and dynamically adjusts the force provided by the extension / retraction device. Removable and / or pivotable covers are provided for managing cables of the user device attached to the extension arm.

The present invention pertains to extension arm apparatuses that are adapted to support user devices throughout a range of positions. A given apparatus may include one or more arms that position the user device remotely from a support position. An extension and retraction device such as a gas cylinder is received within each arm, and provides a force to support the user device as the arm is placed into a given position. A variable force clevis is connected to the extension / retraction device within the arm. The variable force clevis is connected to a pair of locations in the arm as well. As the arm moves, for instance up or down, the variable force clevis rotates within the arm and dynamically adjusts the force provided by the extension / retraction device. Thus, the arm may be positioned as desired, as such force adjustment stabilizes the arm.

A collapsible, modularly constructed, self-supporting tent support framework. The framework includes a number of support poles that interconnect at hinge, clevis / saddle and T / collar couplers. The couplers retain the pole sections at preferred angular orientations in multiple planes to support an overlying fabric cove. Each hinged coupler includes a pair of hinge pieces having a tubular sleeve body, an end collar that interleaves with the other hinge piece at a transecting pivot pole and a serrated, arcuately projecting wing arm having transverse bores that overlap and fasten together to define a desired splay angle. Each clevis / saddle coupler includes a tubular sleeve body and a depending clevis or saddle to pivotally secure a pole section. Each T / collar coupler includes a tubular sleeve body and end collars to pivotally mount to a transecting pole section. The pole pieces couple to the sleeve bodies, collared ends, and clevis / saddles of the framework couplers.

A surgical end effector includes a clevis having a first end to be supported by an elongated tube-like member and two jaws, each having a pivot portion and a working portion. The pivot portions are rotatably coupled to the clevis by two spaced apart pivots. The working portions may include a cutting edge that provide a shearing action as the first and second jaws rotate about their respective pivots. The pivot portion and the working portion of each jaw may be on opposite sides of a bisecting plane. A flexible cable or wire may be coupled to each jaw and extend through a guide way in the other jaw, between the first and second pivots, and through the first end of the clevis. One or more springs may urge the working portions together. A rocking pin pivotally supported by the clevis may constrain the jaws to have opposite motions.

A apparatus for removing surface coverings, includes a shaft having a first end and a second end; a sleeve slidably mounted on the first end of the shaft; a clevis pivotably mounted on a first end of the sleeve; a drive mechanism for shifting a rod between a first rod position and a second rod position relative to the shaft; and a blade mounted on the clevis and extending away from the shaft. The clevis is secured to the rod, such that as the rod moves between the first rod position and the second rod position, the clevis pivots on the sleeve, and the sleeve slides on the shaft to shift a leading edge of the blade between a first edge position and a second edge position.

The invention provides a lifting device for a baby bed, and relates to the field of baby accessories. The main body of the lifting device comprises two independently symmetrical structures which are respectively fixed at the left and right sides of an upper annular pipe of the baby bed, and each independent structure comprises components such as an outer cover, an inner cover, a pipe sleeve, a wrench, a torsion spring and the like, wherein, the pipe sleeve is riveted with the tope end of a rear pin, the outer cover, the wrench and the torsion spring through a rivet, and the wrench and the torsion spring pass through the pipe diameter of the pipe sleeve in a combined body of the inner cover and the outer cover; and the auxiliary structure of the lifting device comprises a front pin and the rear pin which are crossed with each other, the lower ends of the front pin and the rear pin are connected with an underframe of the baby bed through a U-shaped clip, and a horizontal section of the front pin is connected with the rear end of the upper annular pipe through a U-shaped clip. The lifting device for the baby bed has the beneficial effects that when in use, the stability of the ideal height of the baby bed can be ensured by means of resilience force of the torsion spring, and the wrench is stressed by fingers so that the height of the baby bed can be arbitrarily adjusted when a hook head departs from a gear, thus better solving the problem of freely lifting up and down the baby bed.

A fully structurally integrated high pressure, hydraulic hand-held tool for cutting dense materials, including the hooves on horses. The tool includes a handle, with a hydraulic flow line provided centrally there through, a handle chamber integrated into the upper end of the handle, the handle chamber comprising a piston, so that hydraulic fluid as exerted into the handle chamber, forces said piston upwardly and out of the handle chamber into the piston housing at the end of the piston distal to the handle chamber, and wherein at the upper end of the tool in the piston housing are a pair of mounts, said pair of mounts pivotally connect to a pair of opposing jaws, with each jaw having a cutting blade applied thereto, and wherein links and a clevis secure to the upper end of the piston, and pivotally connect to the outer back edges of the jaws, such that applying hydraulic pressure from about 3000 psi to about 6000 psi to the lower end of the piston chamber, the piston is urged upwardly and out of the handle chamber, upon actuation of the tool, and the jaw cutting blades and their edges are forced to pivot inwardly toward each other, thereby being positioned into a cutting action, and wherein the hydraulic pressure is released, the piston is forced by spring biasing downwardly within the piston housing and back into the handle chamber, and wherein said movement of said piston back into the handle chamber causes the jaws to reverse and separate from each other and to become positioned into their original pre-cut position.

A manifold assembly includes a clevis-style mounting structure, a first manifold section, a second manifold section, an accessory disposed between the first and second manifold sections, and a plurality of threaded clevis fasteners. The clevis-style mounting structure includes an upper clevis structure and a lower threaded clevis structure. The clevis-style mounting structure may be operatively configured to be mounted on a cylinder head. The first manifold section has distal and proximal ends. The first manifold section is integral to the clevis style mounting structure. The plurality of threaded clevis fasteners operatively configured to mount the clevis-style mounting structure to a cylinder head via a plurality of corresponding passageways defined in the cylinder head.

A vault cover grabber, bolt cover lifter or vault cover eye-hook is formed from two L shaped components with each component having an eye opening on one end and each component having an L shaped end (lower end) designed to be inserted through a void of a vault cover or other object. The top ends or eye ends of the two components are pivoted apart to allow the two lower ends to pass through a vault cover void. After insertion, the upper eye ends are pivoted together, causing the two lower ends to contain the vault cover. A hook or other object is placed through the two eye voids of the top ends of the two components. A combination of double clevis connectors, shaft collars, shackles and chains secure the vault cover grabber to a handle or other means of lifting.

A drawbar assembly for coupling a drawbar to a tongue of a towed implement includes a drawbar pin and a drawbar clevis having a bore configured to receive the drawbar pin. A locking plate is coupled to the drawbar clevis and movable between a pin-lock condition in which the locking plate is configured to obstruct at least a portion of the bore, and a pin-unlock condition. An ejector mechanism is configured to dislodge the drawbar pin from the bore. The ejector mechanism includes a handle utilized to operate the ejector mechanism and an ejector arm pivotably disposed in an ejector recess in the clevis. The ejector arm is movable from a home position in which the ejector arm does not interfere with the drawbar pin to an eject position in which the ejector arm forces the drawbar pin to be at least partially dislodged out of the bore.

An aircraft wheel equipped with rotational drive (10) attached to clevises (19) projecting from a flank of a rim (5) of the wheel. The drive comprises a ring (11) able to cooperate with a drive actuator and is provided with members (12) for attaching to the clevises of the rim such that, between two attachment members, the ring forms a flexible and deformable segment.