Class 74/546 - Extensible

Subclass of Class 74 - Machine element or mechanism
Definition: Devices in which the length of the crank arm is adjustable.
No. of patents: 34
Last issue date: 02/26/2008

Number	Title	Issue Date
7334774	Extensible and turnover handle structure for a jack An extensible and turnover handle structure for a jack comprises a pivot ear formed at the front end of a base. The pivot ear is provided for a pivot connection with the handle. Moreover, the handle includes an inner pipe inserted in an outer pipe and serves to draw...	02/26/2008
7204788	Pedal stroke adjuster for bicycles or the like A stroke adjusting attachment for bicycles or the like enables selective changing of the diameter of the orbit which is traveled by a foot pedal to adapt a particular bicycle to persons having different leg lengths or who may have physical impairments which limit fo...	04/17/2007
7131349	Device for actuating a gearbox and pulse control method The invention concerns a device for actuating a gearbox, in particular controllable by pulse control, the device comprising a housing and a lever mounted oscillating in the housing, and the lever being selectively activated via a knob movable along a first direction...	11/07/2006
7086664	Jack handle with detachable jack driver A jack handle includes a handle arm having first and second ends, a jack driver having a coupling shaft, and a spring clip detachably securing the jack driver to the handle arm. The first end of the handle arm forms a socket receiving the coupling shaft. The spring ...	08/08/2006
7066438	Collapsible supporting device for a portable computer In a collapsible supporting device for a portable computer, a pair of base members and a pair of interconnecting members are connected pivotally to a coupling seat. A pair of supporting members are coupled to the interconnecting members, respectively. The supporting...	06/27/2006
7000497	Selectively positionable gearshift and method An adjustable gearshift assembly (10, 130) for connecting by a bracket (16) to a transmission of a motor vehicle, providing a shifter knob (12, 132) movable to a selected position relative to an elongate member (14, 144). The shifter knob...	02/21/2006
6978732	Pontoon tarpaulin system A pontoon tarpaulin system for efficiently covering a pontoon. The pontoon tarpaulin system includes a plurality of support poles vertically extendable from a floor of a pontoon, a plurality of support bands extending between the ends of the pontoon and attachable t...	12/27/2005
6971278	Manual multi-ratio tension-applying device A tension applying device including a housing in which are mounted a primary shaft, a main shaft, a pinion shaft, and a load-member sheave shaft. A ratchet handle is associated with the primary shaft for imparting rotation thereto when pumped by a user. Rotation of ...	12/06/2005
6966516	Spinning reel with rear adjustable drag, adjustable handle length and universal pivot handle grip A spinning reel has a drag assembly in its spool on one end of the reel body, and an adjustment knob for the drag assembly on another end of the reel body, where it is conveniently accessed during use of the reel. The reel has a handle arm with two slidably disposed...	11/22/2005
6070491	Jack extension handle A jack extension handle assembly that includes first and second elongated segments or extensions connectable together to provide a stable, extended jack handle. At the end of its solid rod-shaped body, one handle extension includes a tapered plug connecto...	06/06/2000
6053069	Two piece hand brake release handle A two piece hand brake release handle for a railway car hand brake mechanism having a relatively long lever one end of which is rotably fitted onto a rotatable brake release post extending from the hand brake mechanism, such that manual rotation thereof w...	04/25/2000
5927769	Kid's safety latch This invention is directed to a door latch having an auxiliary bolt which activates the latch bolt, and the use of a latch to confine small children in the home. The auxiliary bolt has a hinged beveled end which pivots when the door is opened but is fixed...	07/27/1999
5906323	Handle structure for dual-bearing reel A handle structure for a dual-bearing reel, which is rotatably mounted on the reel unit of a dual-bearing reel and is attached to the distal end of a handle shaft provided with a drag mechanism, includes a seat plate, a fixing component for fixing the sea...	05/25/1999
5897072	Extendible fishing reel crank handle A dual leverage reel of the type used for fishing is constructed so as to have an effective lever arm of adjustable length. The reel employs a crank arm that includes a pair of detent recesses, one of which is located at a distance from the crank arm axis...	04/27/1999
5823067	Crank handle apparatus and method A crank handle (40) which is used in a roll-up flexible cover assembly (64) for an open container, such as a truck (68), includes a longitudinal tube (42) and a rotatable tube (44). The rotatable tube (44) has a longitudinal portion (46) being telescopica...	10/20/1998
5582370	Switch machine with ratchet mechanism on hand throw mechanism There is provided an improved hand throw device of an electric motor driven switch machine having a ratchet mechanism that permits torque to be applied to the hand throw device in either a clockwise or counter-clockwise direction as desired by an operator...	12/10/1996
5520069	Synchronized lever mechanism for insertion and removal of modules in housings A lever mechanism for the insertion and removal of a module in a housing includes two levers the proximal ends of which are pivotally mounted to the module at spaced locations on the module. The distal ends of the levers are disposed in confronting relati...	05/28/1996
5507204	Crank Handle An adjustment crank is mountable to the underside of a table top by a bracket in which it is both rotatable and translatable. The crank includes a tube which carries internal splines. An adjustment shaft extends into the tube and carries mating splines. T...	04/16/1996
5482347	Roll-up tarp apparatus and method A roll-up assembly for covering or uncovering an open container, such as a truck, includes a roll tube transversely extending over the container, a flexible cover being rolling about the roll tube whereby one end of the flexible cover is attached to the r...	01/09/1996
5425154	Trucker's leverage bar and method An improved leverage bar for use on a load binder handle or in the opening of a ratcheting binder comprising a bar having a latch assembly on a first end for engaging the load binder. The latch assembly comprises a generally U-shaped wall member with a la...	06/20/1995
5381707	Extension arm for an automobile jack A lifting jack for automobiles has an extension arm with a particular fastener which may be used to connect longitudinally elongated tubular sections. A series of interlocking sections are provided which need not be identical (e.g. in particular having di...	01/17/1995
5308020	Fishing reel A fishing reel has a handle shaft, a movable member movable along an axis of the handle shaft, and a handle projectable and retractable relative to the movable member in a direction normal or substantially normal to the shaft axis. The reel further includ...	05/03/1994
5237890	Extension arm for an automobile jack A lifting jack for automobiles has an extension arm with a particular fastener which may be used to connect longitudinally elongated tubular sections. A series of interlocking sections are provided which need not be identical (e.g. in particular having di...	08/24/1993
5193666	Handle extender for molded case circuit breaker actuator mechanism A remote actuator for an enclosed molded case circuit breaker or disconnect switch utilizes an actuator cable connection with the circuit breaker operating handle in a "pull-pull" arrangement. The cable is arranged in an endless loop between the actuator ...	03/16/1993
4715089	Telescoping pole crank assembly A telescoping pole crank assembly having a tubular pole crank which movably mounts an extension pole for setting the overall length of the pole crank assembly. The extension pole is held in its adjusted position by a locking collar structure including a c...	12/29/1987
4646670	Sail system for sailboards, and boardsailing apparatus and method An improved single-boom sailing rig for sailboards, and methods of use, are disclosed. A curved, rotatable boom (100) is provided with a forward end set at a slight angle with respect to the chord, with a separately-rotatable camber control (110) located ...	03/03/1987
4582298	Variable radius crank winch A pedestal winch with variable radius crank arms. The winch is intended for use on a sail boat or the like. The crank arms each include two telescoping sections together with a locking apparatus for locking the sections together in differing positions so ...	04/15/1986
4479616	Extendable crank handle An extendable crank handle is disclosed herein having an elongated body provided with a channel for slidably receiving a crank bar which is moved between an extended position to increase the throw of the crank movement and a retracted position which decre...	10/30/1984
4404866	Regulator handle assembly for the operation of car window glass A regulator handle assembly for the positional control of a car window glass includes a handle lever combined with a spring-loaded manual knob arranged slidable and rotatable on a hollow sleeve made at the free end of the handle lever integral therewith. ...	09/20/1983
4224871	Means for displacing elements between upright machine frames Means for displacing elements, such as the rollers of printing machines, located between the upright frames of a pedestal machine. A rotatable drive shaft is supported in each of the frames parallel to the direction in which the displacement is to proceed...	09/30/1980
4223472	Toy projectile launching device A toy projectile launching device having a main tubular member in fluid communication with an air pump, an air storage tank and a projectile launching housing rotatably coupled to the main tubular member. A valve member manually operable within the main t...	09/23/1980
4039199	Wheel chair push rod apparatus This invention relates to push rod apparatus for propelling wheel chairs. Several different embodiments of the invention are disclosed. All the embodiments include a plurality of push rod mechanisms that provide the occupant with a means to propel a wheel...	08/02/1977
3990323	Device for rotating a spool of a fishing reel A device for rotating a spool of a fishing reel, comprises a handle stud connected co-operatively with one spool for winding up a fishing line thereon and an operating handle mounted to the end of the handle stud, which operating handle is formed of two a...	11/09/1976

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Class 74/546 - Extensible