171results about How to "Prevent further rotation" patented technology

A linear surgical stapler adapted for applying a plurality of surgical fasteners to body tissue includes an anvil structure and a cartridge housing containing a plurality of surgical fasteners. The cartridge housing and anvil structure are relatively movable between a first spaced apart position and a second position in close approximation with one another. A firing mechanism is associated with the cartridge housing for ejecting the surgical fasteners from the cartridge housing to be driven against the anvil structure. A lockout mechanism interacts with the cartridge housing for selective activation and deactivation. The lockout mechanism includes a swing gate tab secured to the cartridge housing at a position adjacent a lockout lever, such that firing of the linear surgical stapler rotates the swing gate tab releasing the lockout lever for preventing further firing of the used cartridge housing.

An infusion set assembly comprising a cannula housing having a base surface and a septum housing adapted to be pivotally attached to the cannula housing for movement between a position where an axis thereof is substantially perpendicular to the base surface and a position where the axis is substantially parallel to the base surface. The infusion set assembly further comprises an insertion needle assembly including an insertion needle and a cannula supported by the needle assembly with a tip of the insertion needle extending from a distal end of the cannula. An insertion guide housing is configured to support the insertion needle assembly with the needle substantially perpendicular to the base surface and adapted for movement between a position where the needle tip and cannula distal end are spaced from the base surface and a position where the needle tip and cannula distal end extend beyond the base surface.

Water saver fire hydrants save water by delivering their initial flow from a pilot valve to a collection of holes in the gasket faces of their hose and pumper outlet nozzles. These holes are normally closed off by the gaskets in caps and hoses, and the water that flows from those holes in the absence of those caps or hoses activates a mechanism inside the hydrant that either blocks attempts to obtain full flow from the hydrant or powers a hydraulic motor that closes the hydrant valves.

A positioning grip or device is provided that is selectively interconnectable to a portable electronic device. The positioning grip is preferably interconnected to the portable electronic device via a mechanism that provides a suction cup and allows for selective rotation of the portable electronic device. The positioning grip also includes a support having at least one selectively deflectable arm.

An apparatus for use in attaching bone in a patient's body is provided having first and second plates, each of the plates at least partially defining a recess. A nut is also provided, having an internal thread convolution and a plurality of bendable sections. A screw is also provided, having an external thread convolution which, upon rotation of the screw, engages with the internal thread convolution of the nut; and a plurality of resiliently bendable sections. Further rotation of the screw retains both the bendable sections of the screw in the recess of the first plate and the bendable sections of the nut in the recess of the second plate, prohibiting relative movement between the screw and the first plate and the nut and the second plate and providing radial compression to the first and second plates to secure bones together.

A subsea connector that includes a connector capable of selectively connecting to a spool body to form a connector assembly. The subsea connector may include an adapter ring that is capable of connecting the spool body to the connector. The connector assembly may be lowered onto a wellhead member and locked into place by a movable piston and split lock ring. While the connector assembly is in the unlocked state, the adapter ring may be rotated moving the connector up or down with respect to the spool body, which lands on the wellhead member. The movement of the connector may be used to vary the alignment of the connector locking means with respect to the locking profile of the wellhead member. This change in position may be used to modify the preload force applied to the connector when locked onto the wellhead member.

A downhole tool for incorporation in a drill pipe for selective operation of the tool from surface level when the tool is in a wellbore. The tool comprises a controller electrically powered by a power source separate from surface level, a first sensor of the controller to detect a dynamic variable of the tool in the wellbore and produce an output signal dependent thereon; a second sensor of the controller to detect a mechanical signal transmitted from an operator at surface level; a motor driven by the power source under the control of the controller when said mechanical signal is received; and an actuator driven by the motor to actuate the tool; wherein the controller switches between at least two states in response to changes in said dynamic variable, only in said second state the controller being receptive to said mechanical signal from the operator to drive the motor.

A connector (10) is configured for mounting to a panel (12). The panel (12) has a mounting aperture (18) formed with a keyway (22). The connector (10) has a housing (24) with a front end (26) dimensioned to pass through the mounting aperture (18). However, keys (44, 46, 48) project out in proximity to the front end (26) of the housing (24). At least one of the keys (48) is dimensioned to pass through the keyway (22). A stop flange (50) projects out from the housing (24) rearward of the keys (44, 46, 48). A resiliently deflectable locking finger (60) projects forward of the stop flange (50) and is dimensioned to engage in the keyway (22).

An interlocking nut and washer system exhibits a very high degree of inherent mechanical stability. The preferred embodiment includes an inner washer, an adjustment nut, an intermediate washer, and an outer nut completing an interlock assembly. Although the inner washer is technically optional, use thereof does reduce wear on the inner nut. While the invention maybe applied in different ways, the system is particularly suited to the controlled adjustment of tapered roller wheel bearings. In this case the system is provided on the spindle ends of an axle, which mounts a wheel assembly that includes tapered roller bearings.

A centrifugal pump having an adjustable clean-out assembly (60), the position of which determines the face clearance between a wear plate (72) and an impeller (20). The clean-out assembly includes an end cover (63) that threadedly mounts a plurality of adjustment assemblies. The adjustment assembly includes an adjuster (104) that defines a through bore for slidably receiving a retaining stud (66) that extends from the pump housing. Each adjuster includes an abutment surface (108) which engages a pump surface and which establishes the face clearance between the wear plate and the impeller. Each adjuster includes a hex-shaped head which is engageable by an associated locking member (120) secured to the end cover. Each locking member includes a locking collar (120a) having 18 teeth which allows the collar to engage the hex-shaped head of the adjuster in 18 different postions. By knowing the thread pitch of the adjuster thread, precise rotations of the adjuster can be used to establish a precise clearance between the wear plate and impeller. Once the adjustment is made, the locking collar is secured to the end cover which enables the clean-out assembly to be removed from the pump without disturbing the adjustment.

A method and apparatus of reattaching a bone fragment to a proximal humerus of a humerus in a shoulder joint. The method includes introducing a distal end of the humeral nail into a medullary canal of the humerus. A first proximal screw is engaged with the bone fragment and a first proximal bore in the proximal end of the humeral nail to move the bone fragment toward the proximal humerus. The humeral nail and the attached bone fragment are rotated relative to the medullary canal of the humerus to position the bone fragment to an anatomically optimal location. The bone fragment is preferably one of a greater or lesser tuberosity of the proximal humerus. The method and apparatus can be used to reattach bone fragments in a variety of other joints.

Engraving tool bit depth controlling nosepiece adjustment devices establish a precise protrusion distance that an engraving tool bit protrudes from the end of the nosepiece of a spring loaded engraving tool, that is in turn inserted within and driven by a standard machine tool such as a cnc type milling machine. One rotational adjustment device establishes the axial position of the nosepiece with respect to a collet nut of the engraving tool and another adjustment device employs annular ring spacers in the form of washers between the nosepiece and collet nut to precisely establish the desired engraving tool bit protrusion distance from the end of the nosepiece. This modification of a spring loaded engraving tool beneficially prevents the engraving tool bit from being able to plunge too deeply into the workpiece, particularly at the start of each engraved line, to thus ensure that all the lines will be consistent.

A roller stop for connection to the head rail of a covering for an architectural openings is releasably connectable to a rear edge of the head rail in overlying relationship with a roller having shade material thereon with the shade material having a bottom rail. The roller stop has a pivotally mounted body selectively positionable in closely adjacent but spaced relationship from the outer wrap of shade material on the roller and in a position to engage the bottom rail when the shade material is fully wrapped on said roller. A catch arm is selectively engageable with serrated teeth to releasable hold the pivotal body in a preselected desired position.

A dispenser (10) for items (26), such as cans (28) or bottles (30), including a main body (16) including one or more openings (32,34) for item dispensing therethrough; a storage means such as a holder (24) included in the main body to store the items substantially within the main body; and a rotation device (54,66) to rotate substantially within the main body, wherein items are presented by the rotation device to one or more of the openings for dispensing.

The present invention provides an actuator characterized by the use of a shuttle that shifts in response to an overload. The shuttle is movable axially relative to a rotary input member by continued rotation of the rotary input member so that a stop on the shuttle moves from an ambush position allowing free rotation of the rotary input member to a blocking position preventing further rotation of the rotary input member. In this way, the shuttle can be used to prevent rotation of a rotary input member during an overload of a control surface, thereby preventing damage to the actuator.

A new and improved adhesive tape dispenser is adapted to dispense tape wound upon a tape core and includes a frame, an application roller, a cutter assembly, and handle mounted on the frame. The adhesive tape dispenser includes a core support assembly secured to the frame and having a first axis. The core support assembly comprises a shaft secured to the frame, and an axle assembly disposed about at least a portion of the shaft. A spindle adapted to support the tape core is rotatably mounted on the axle assembly. The axle assembly includes a hub having an outer surface with a second axis adjacent the first axis, at least one flange extending radially from the hub, and a cam rotatably mounted on the hub. The spindle freely rotates in a first direction. Wherein rotation of the spindle in a second direction rotates the cam about the second axis in the second direction whereby the cam engages the spindle preventing further rotation of the spindle in the second direction about the axle assembly.

A multi-tooth pawl type gearing mechanism for a freewheel of a bicycle wheel hub includes a cassette body having an inner rotor member with an axis. A gear ring shaped and dimensioned for attachment to a wheel hub of a bicycle wheel is also provided allowing for the transferring of power from the gear ring to the bicycle wheel. The gear ring surrounds the inner rotor member and includes an inner surface. A series of pawls, wherein each pawl includes a first end and a second end, are positioned between the inner rotor member and the gear ring for transmitting power therebetween in a unilateral direction as the inner rotor member is rotated. When the inner rotor member is rotated in a first direction the pawls are brought into engagement with the inner surface of the gear ring thereby transmitting rotation of the inner rotor member to the gear ring and when the inner rotor member is rotated in an opposite second direction the pawls slide over the inner surface of the gear ring and rotation of the inner rotor member is not transmitted to the gear ring.

An implantable lead includes a lead body, a header body, a fixation mechanism, a rotatable shaft and a rotation limit element. The fixation mechanism is disposed in the header body and is extendable out of the header body for securing the header body to cardiac tissue of the patient. The shaft is provided in the header body and is coupled to the fixation mechanism for translating rotational movement of the shaft into linear displacement of the fixation mechanism. The rotation limit element is disposed in the header body. The rotation limit element engages the header body once the shaft is linearly displaced by a predetermined distance with respect to the header body to prevent further rotation of the shaft and limit additional displacement of the fixation mechanism with respect to the header body.

A door check apparatus for an automobile comprises a unitary check body containing a pair of compliant leaves and a guidance arrangement which is adapted to be rigidly mounted to a vehicle door. It also comprises a check arm containing cam surfaces and detent features which is pivotally connected to a vehicle body structure and is configured to slideably interface with the guidance arrangement of the unitary check body. The unitary check body is manufactured from a resilient material so that the compliant leaves are capable of storing and releasing energy in response to the movement of the cam surfaces and detent features of the check arm relative to the guidance arrangement. Rotary motion of the vehicle door relative to the vehicle body structure is checked with predetermined forces generated from the energy stored and released by the compliant leaves at positions determined by the relationship between the detent features of the check arm relative to the guidance arrangement of the unitary check body.