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Class 74/143 - Multiple acting


Subclass of Class 74 - Machine element or mechanism
Definition: Mechanisms in which a single driving member in the form
No. of patents: 73
Last issue date: 11/03/2009


1    
NumberTitleIssue Date
7610823Perpetual bidirectional ratchet
A two directional traversing mechanism uses a ratchet bar moved by an actuator to oscillate. Notches in the ratchet bar engage a pawl pivotally mounted to a piece of equipment so that the pawl and equipment move in the first direction. When the direction of the ratc...
11/03/2009
7341267Reversible ratchet mechanism
A reversible ratchet mechanism includes a pair of roller clutches set to operate in opposite directions when engaged by a belt. During the forward motion of the ratchet assembly in either direction of propulsion of the belt, one roller clutch is disengaged while the...
03/11/2008
7267030Bicycle crank assembly
A bicycle sprocket crank assembly is comprised of first and second crank arms joined to a spindle. One of the crank arms and the spindle may be fabricated as a unitary structure, or both cranks arms may be formed as separate structures and joined together. In either...
09/11/2007
7168340Ratchet wrench having constant drive
Ratchet wrenches are provided that allow for drive on both the forward and return strokes of the ratchet handle. A combination ring gear, sun gear and planetary gear system is used in combination with a drive pawl arrangement to achieve power drive in both direction...
01/30/2007
7121160Mechanical transmission
A constant power mechanical transmission with seamless, ripple free, infinitely variable torque multiplying outputs comprises an input shaft and an output shaft. The input shaft is coupled to a pair of oscillating levers whereby rotation of the input shaft causes os...
10/17/2006
7069811Actuation device of an adjusting unit for automotive vehicle seats
An actuation device of an adjustment unit for automotive vehicle seats has a hand lever and a frame. The frame carries the hand lever and accommodates an output shaft. The hand lever adopts a central position when the actuation device is in a position of rest, and m...
07/04/2006
6971719Clutch actuator surface apparatus and method
A clutch actuator has a housing with a load bearing element disposed within it. A force application element disposed within the housing applies force to the load bearing element. A stop assembly includes a retaining stopper between the load bearing element and the f...
12/06/2005
6957596Apparatus and method for braking ergonomic support actuator
A braking actuator for an ergonomic support is connected thereto by a Bowden cable. The actuator has a housing with pin slots, friction surfaces and a mount for a disk axle. A disk has frictional surfaces, holes with pin load edges, a Bowden cable wire seat that hol...
10/25/2005
6951270Silent ratchet actuator
An actuator for a traction device comprising has a locking clutch adapted for operative communication with a traction device. It has a drive disc having drive tabs. The drive tabs project axially into driving engagement with the locking clutch. The drive disc has a ...
10/04/2005
6766581Cable cutter/crimper mechanism
A tool for cutting/crimping a workpiece, such as a cable, includes an automatic rapid blade advance such that a blade on a movable jaw of the tool advances toward cutting the cable every time the handles of the tool are closed. The automatic rapid blade advance also...
07/27/2004
6758111Continuously variable transmission
A continuously variable transmission comprising a lay shaft that rotates in response to the input power from the engine. A crank on the lay shaft and a drive rod translate the rotation of the lay shaft into linear motion. An output rod rotatably mounted at a transmi...
07/06/2004
6732842Ratchet-type lever mechanism
A ratchet-type lever mechanism including two ratchet gear wheels and a bifurcated ratchet pawl member for selective meshed engagement with one of the two ratchet gear wheels. The bifurcated ratchet pawl member is simply bent from a plate material into such an offset...
05/11/2004
6716141Mechanically actuated scooter
A mechanized scooter includes a frame, having a front wheel and at least one rear wheel rotatably attached thereto. A pair of steps are rotatably mounted in the frame and linked to a drive train to drive the at least one rear wheel. The drive train may include a num...
04/06/2004
6575278Drive acting on both sides for adjustment devices
The invention relates to a drive acting on both sides for adjustment devices, including a rotationally mounted drive lever for producing a rotational movement that can be selectively effected in one direction of rotation or in the other direction of rotat...
06/10/2003
6557678Transmission
A transmission assembly comprising an overrunning clutch assembly comprising a race having an inner annular contact surface, a plurality of sprags provided along the inner annular contact surface of the race, and defining a drive space, means for retainin...
05/06/2003
6488134Step-by-step ratchet mechanism with a silent ratchet
A step-by-step ratchet mechanism has a mount, a hand lever carried on the mount and pivotable about an axis, and a ratchet provided with a toothed set wheel and with an output shaft rotatable about an axis of the ratchet in the mount. Two catches are prov...
12/03/2002
6431052Power generating apparatus using compressed air
Provided is a power generating apparatus for obtaining a desired power source from elastic movement of an elastic tube into which compressed air is injected. The elastic pressure receptacle having compressed air is rotatably supported and pistons engaged ...
08/13/2002
6422348Transmission wheel, method for manufacturing transmission wheel and self-winding wheel train structure having transmission wheel
A transmission wheel comprises a gear having a hole and a pinion having a plurality of teeth and being removably mounted in the hole of the gear. The hole of the gear has at least one chord-shaped stop portion engaging two adjacent teeth of the pinion to ...
07/23/2002
6382043Transmission assembly for a bicycle having forward/back gear
A bicycle transmission assembly comprises a gear shifting device and a reciprocating pedal device that are mounted to a bicycle frame. The reciprocating pedal device comprises a reverse gear train consisting of a first reverse gear and a second reverse ge...
05/07/2002
6308797Motorcycle transmission shifter mechanism
A motorcycle transmission shifter assembly including a cam drum having at least two pins extending therefrom, and a shift mechanism engageable with the pins. The shift mechanism includes a tooth that is operable to engage a first one of the pins to rotate...
10/30/2001
6296589Gear engaging stepless speed variator with orientational on-off device
A gear engaging stepless speed variator having orientational ON-OFF properties of worm transmission for a gear transmission mechanism to realize ON-OFF orientation, so as to achieve stepless speed change of gear engagement. The variator has an orientation...
10/02/2001
6213487Helical drive wheelchair
A wheelchair is provided with a helical drive mechanism. A rectilinear input to the helical drive causes an output gear to rotate, thus providing power to rotate the driving wheels of a wheelchair. The helical drive may include, for example, a compound he...
04/10/2001
6178838Adjusting mechanism especially for an automobile seat
An adjusting mechanism, in particular for seat adjusters in automotive vehicles, includes a drive member having a toothing and being movable in either of two mutually opposite directions. An actuating member is provided with two claws movably mounted on t...
01/30/2001
6173981Pedal-operated vehicle
The invention disclosed herein is a pedal-operated vehicle comprising: a frame; a front wheel and a rear wheel, the front and rear wheels being rotatably mounted to the frame; first and second independently operable pedals reciprocatingly mounted to the f...
01/16/2001
6062096Continuously variable transmission utilizing oscillating torque and one way drives
A transmission utilizes oscillating torque to vary the mechanical power transmitted to a load. An arm assembly is rotatably coupled to a frame. At the ends of the arms are eccentric masses, rotatably coupled thereto. An input shaft rotates the masses abou...
05/16/2000
6044718Continuously variable transmission utilizing oscillating torque and one way drives
A transmission utilizes oscillating torque to vary the mechanical power transmitted to a load. An arm assembly is rotatably coupled to a frame. At the ends of the arms are eccentric masses, rotatably coupled thereto. An input shaft rotates the masses abou...
04/04/2000
6017046Wheelchair apparatus
The invention comprises a drive system for use in association with a wheelchair. The drive system includes at least one input gear system, a structure for powering at least one input gear system, at least one transfer gear system, a positioning member, an...
01/25/2000
5921139Bicycle shift control device
A bicycle shift control device includes a first member; a second member rotatably mounted relative to the first member for rotation in first and second directions; a third member rotatably mounted relative to the first member for controlling the pulling a...
07/13/1999
5918714Ratchet mechanism for driving adjustment devices for vehicle seats
For a ratchet mechanism for driving adjustment devices for vehicle seats, in particular motor vehicle seats, with a control lever (4) that can be swivelled back and forth and a ratchet (6) movable by this, which cooperates with a gear ring (3) of a driven...
07/06/1999
5881854Mechanism for controlling a rotary member by means of a pivoting handle, and a seat fitted with such a mechanism
The mechanism is to apply drive in both directions of rotation to a ring having an inside set of teeth, the drive being applied by means of a pivoting handle. The ring cooperates with two locking pawls mounted on a stationary cheekplate and with a toothed...
03/16/1999
5865285Manual drive operating in both directions to produce a rotary movement, more particularly for vehicle seats
A manual drive for producing rotary movement in both clockwise and counterclockwise directions includes a drive lever which has a neutral position from which it can move into a first or second rotary direction. Attached to the drive lever are a pair of de...
02/02/1999
5860329Pedaling mechanism for bicycles and the like
A unidirectional power drive mechanism operated by a plurality of crank arms and associated one-way clutches connecting the crank arms independently to a crankshaft arranged to provide a unidirectional power output. The crank arms are able to rotate throu...
01/19/1999
5860321Power transmission utilizing conversion of inertial forces
A machine translates torque applied to the input shaft at an input speed (RPM), first into kinetic energy, and finally to torque on an output shaft. The input power is first converted to kinetic energy by accelerating a mass or masses, so that the reactio...
01/19/1999
5794479Adjusting mechanism
An adjustable member such as a seat back of a vehicle is connected to an adjustment mechanism which transfers an external mechanical or manual force to the seat back. The adjustment mechanism includes an actuating element which rotates the seat back in ei...
08/18/1998
5673594Speed change lever apparatus for use in bicycles
The present invention relates to a bicycle speed change lever apparatus which is mounted near the handlebar of a bicycle. A lever apparatus is used for pushing a ratchet member, allowing the ratchet member to produce a positive or negative rotation, which...
10/07/1997
5662009Drive mechanism providing an oscillatory-rotational-drive input and a reversible rotational-driven-output
A drive mechanism provided with a forward and reverse input and a forward and reverse drive whereby a single output-member is caused to produce forward drive from forward-rotation, reverse-rotation and oscillatory-rotation applied to a single input-member...
09/02/1997
5577412Apparatus for converting a reciprocating motion into unidirectional rotation
The apparatus has the form of a non-self-braking helical mechanism located inside casing (24) and having a driving member (2) and a driven member (1) connected to the driving member (2) through rolling bodies (3). The driving member (2) is connected to un...
11/26/1996
5451070Treadle drive system with positive engagement clutch
A treadle drive system operates comfortably in a standing or seated position with two toe or heel end pivoting treadles. A flexible drive line (chain, cable, belt, etc.) from each treadle drives a pair of forward biased driving rings (having sprockets, pu...
09/19/1995
5390773Non-slip bicycle clutch
A clutch mechanism for use on a conventional bicycle which permits independent actuation of both pedals and provides a driving force through 100% of a pedal stroke. The clutch is generally comprised of a single, outer, cylindrical rotor which extends betw...
02/21/1995
5386745Motion converting mechanism and rotary tool
A motion converting mechanism according to the present invention is constructed such that pinions (10, 11) are engaged with a circular arcuate gear (8) for performing reciprocating circular arcuate motions about a pivot, and two sets of one-way clutch mec...
02/07/1995
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