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| Number | Title | Issue Date |
| 8156833 | Linear actuator A linear actuator has an alternating drive apparatus, an alternating motion member, a fixing member fixed to a housing member, a direct acting member, a first wedge joining mechanism incorporated between the alternating motion member and the direct acting member, an... | 04/17/2012 |
| 7168340 | Ratchet 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 |
| 6634424 | Downhole control tool A downhole control tool (20) comprises a first sleeve (22) defining a first profile (28), a second sleeve (24) axially and rotatably movable relative to the first sleeve (22) and defining a second profile (30) for selectively engaging the first profile (2... | 10/21/2003 |
| 6557678 | Transmission 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 |
| 6213681 | Soil compacting device with adjustable vibration properties A soil compacting device has a damping system which couples an upper mass and a lower mass together with a spring system in a vibration system. The damping properties of the damping system can be modified while the device is in operation. Therefore, when ... | 04/10/2001 |
| 5787981 | Oil field converting axial force into torque The present invention provides a tool for converting axial force into torque comprising a body and set teeth positioned on the body. The tool also has a mandrel positioned to move relative to the body and drive teeth positioned on the mandrel such that th... | 08/04/1998 |
| 5353659 | Mechanism for converting oscillatory rotation of input shaft to unidirectional rotation of output shaft A mechanism is disclosed for converting oscillatory rotation of an input shaft to unidirectional rotation of an output shaft. An input shaft journalled to a frame is rotatable about an input axis, over a range of rotational positions, between a forward li... | 10/11/1994 |
| 5231887 | Device in a force actuator A reciprocating axial movement of a drive member (18) in a force actuator is generated by a prestressed tool (17) of Terfenol material being exposed to a pulsating magnetic field. The reciprocating movement is transformed to an axial movement in an applic... | 08/03/1993 |
| 5136888 | Mechanism for converting oscillatory rotation of input shaft to unidirectional rotation of output shaft In a mechanism for converting oscillatory rotation of an input shaft to unidirectional rotation of an output shaft, two bevel gears are mounted around the input shaft and a bevel gear intermeshed therewith is coupled to the output shaft. Each bevel gear m... | 08/11/1992 |
| 4934217 | Power transmission apparatus and methods of constructing and utilizing same A multiple speed ratio power transmission apparatus, comprises input mechanism adapted to be connected to a power source for being driven with a constant reciprocating or oscillating motion, output mechanism including a rotatable output shaft, motion tran... | 06/19/1990 |
| 4911457 | Scooter A scooter with a manual propelling system of the invention can be moved by pushing or kicking the ground as usual, operating the manual propelling sytem or combining the both methods. The scooter comprises a body or platform, a steering section attached t... | 03/27/1990 |
| 4729251 | Stepping mechanism A stepping mechanism comprises a toothed wheel and a shifting member which shifts toothed wheel by a tooth pitch. The movement plane of the shifting member extends at a right angle to that of the toothed wheel. A two-armed shifting pawl which is supported... | 03/08/1988 |
| 4727763 | Mechanism for transforming a reciprocating rectilinear motion into an intermittent rotary motion A mechanism for transforming a reciprocating rectilinear motion into an intermittent rotary motion comprises a first element having a longitudinal axis and being reciprocable in a direction parallel to said axis, and a second element coaxially surrounding... | 03/01/1988 |
| 4620620 | Actuator for adjustable hydraulic damper The actuator is disposed in the damper piston rod and includes a solenoid with a reciprocating plunger, a motion converting mechanism which converts solenoid reciprocation to rotation of an input driver, an intermediate driver rotatable with the input dri... | 11/04/1986 |
| 4594971 | Variable fuel/oil ratio pump for two-stroke internal combustion engine A mechanism for pumping fluid in response to pressure pulses, the mechanism comprising a fluid pump including a reciprocating piston operable to pump fluid, a rotatable eccentric wheel including a cam surface, a linkage engageable with the cam surface for... | 06/17/1986 |
| 4572027 | Motion converter Apparatus for converting multi-directional input to uni-directional output having a plurality of drivers rotated by the input and moveable to alternate positions with respect to opposed surfaces on the output driven member for frictional drive of the driv... | 02/25/1986 |
| 4567781 | Steady power A reciprocating input rod lifts a heavy ball up an inclined circular track that provides a path for the ball to roll down by gravity. The ball's speed of rotation causes the track itself to rotate and this rotation provides useful output energy of rotatio... | 02/04/1986 |
| 4559839 | Apparatus for driving an oscillating spout A drive means for an oscillating spout is presented which includes a control mechanism which directs a control arm to perform the movement required by the spout and a transmission device which acts to transmit the control arm movement and reproduce it as ... | 12/24/1985 |
| 4548090 | Supersonic vibration driven motor device A supersonic vibration driven motor comprising a supersonic oscillator and a mass rotationally driven thereby. The oscillator is provided with a vibration disc secured thereto on an end face thereof opposite to the mass to be driven. The mass is integrall... | 10/22/1985 |
| 4419905 | Bicycle transmission A collar on the drive shaft of a bicycle pedal hub is mounted with means to displace the collar longitudinally along the shaft. The displacement is accomplished by a limited reverse rotation of the pedals and shaft. The direction of the displacement may b... | 12/13/1983 |
| 4325264 | Supersonic vibration driven motor device A supersonic vibration driven motor comprising a supersonic oscillator and a mass rotationally driven thereby. The oscillator is provided with a vibration disc secured thereto on an end face thereof opposite to the mass to be driven. The mass is integrall... | 04/20/1982 |
| 4265128 | Turret type frequency selector A frequency selector (tuner) employs a turret to select the position of a slide member that is coupled to a variable reactance. The slide member is moved away from the turret by depressing an operating member and returns to the turret when the operating m... | 05/05/1981 |
| 4236418 | Multi-element writing instrument A multi-element writing instrument is disclosed for use in computer-operated plotters or similar graphics systems. Successive applications of a linear force applied along the axis of the instrument are converted to rotary motion which is employed to selec... | 12/02/1980 |
| 4235157 | Volumetric metering stuffer with product seals The ram housings of a volumetric metering stuffer are provided with ram seals to prevent leakage of the product being stuffed. The rams are reciprocated translatorily along substantially straight lines to prevent sidewise thrust on the seals. Cushions abs... | 11/25/1980 |
| 4221236 | Steppable mechanism and valves including same A steppable mechanism is described comprising a cam member formed with a series of interconnecting cam slots symmetrically arranged in a closed loop around a central axis, and a follower pin movable within the slots to effect a rotary movement of the cam ... | 09/09/1980 |
| 4200180 | Mechanism for feeding workpieces A transfer finger for feeding small workpieces is pivotally mounted at the forward end of a rod which is adapted to be advanced and retracted by a reciprocating pneumatic actuator. During the initial portions of the advance and retract strokes of the actu... | 04/29/1980 |
| 4170148 | Double oscillating motion-single linear motion cam For use in a speed change transmission having shift rails to effect speed changes, a shaft carrying a double oscillating motion - single linear motion cam, with a cam follower surface in a shift rail being adapted to cooperate with the cam to effect axial... | 10/09/1979 |
| 4128133 | Torquer/thruster for flexible roofdrill A torquer/thruster with a hydrostatically actuated chuck assembly configured to drivingly engage a flexible roofdrill for applying rotational torque and longitudinal thrust to the roofdrill shaft. The chuck assembly is mounted within a rotatable and longi... | 12/05/1978 |
| 4103120 | Auxiliary mechanism for imparting rotational energy to electrical components Disclosed is an auxiliary mechanism for rapidly imparting rotational energy to electrical switch components. An insulator connects an electrical switch component to an output shaft mounted for rotation in the mechanism housing. A lever arm assembly is mou... | 07/25/1978 |
| 4062246 | Mechanical movement A mechanical movement includes an input member movable in opposite directions, levers each connected to and pivotally movable by the input member, crank arms connected to and movable by the levers, eccentric crank pins driven by the crank arms, and circul... | 12/13/1977 |
| 4059021 | Apparatus for converting oscillatory motion to reciprocating motion Apparatus for converting oscillatory motion to reciprocating motion featuring the use of thin, non-permanently deformable band-like members confined to a linear track so as to be reciprocable when one end of the band-like member is engaged by an oscillato... | 11/22/1977 |
| 4048010 | Control rod drive for nuclear reactors A nuclear reactor, a control rod drive for finely adjustable normal insertion and withdrawal of control rods from the reactor core, for scramming the control rods, as well as for locking the control rods in their respective rated position, the insertion b... | 09/13/1977 |
| 4003268 | Film winding device for photographic cameras An improved film winding device for photographic cameras, having a sprocket, a sprocket rotation limiting member and an engaging member, both of which move in unity with the sprocket, a stopper member which is interconnected with the film winding operatio... | 01/18/1977 |
| 3983759 | Double-acting wrench A double-acting wrench has a main handle and a holding handle, the end of the main handle being connected to a set of reversing gears, and through a ratchet and double pawls to the cage in which the set of reversing gears are mounted. The reversing gears,... | 10/05/1976 |
| 3977263 | Intermittently rotating driving devices The driving device comprises a cam disc rotatably supported by a cylindrical base and provided with equally spaced radial cam grooves of an add number, a slidable shaft extending through the cylindrical base in the diametrical direction thereof, and a pin... | 08/31/1976 |
| 3977261 | Wrap-spring, variable speed drive arrangement Oscillatory motion of a first end of a lever arm is converted to incremental rotational motion of an output shaft connected to a second end of the lever arm. The second end oscillates with an amplitude determined by a fulcrum adjustable along the lever ar... | 08/31/1976 |
| 3969945 | Indexing mechanism An indexing device has a toothed gear actuated by a reciprocating yoke impinging on a tooth to turn the gear and to hold the gear in a fixed position upon further movement of the yoke in the same direction. The yoke is reciprocated through a cam connectio... | 07/20/1976 |
| 3952713 | Valve rotator A rotator for a valve which is reciprocable along a longitudinal axis between open and closed positions and which is rotatable about such axis. The rotator includes a pair of parts movable axially and rotatably relative to one another along and about the ... | 04/27/1976 |
| 3946628 | Rotary veneer clipper and drive therefor A rotary veneer clipper has a pair of cutting blades spaced 180° apart on a rotary clipper shaft for cutting cooperation with a roller anvil below and parallel to the clipper shaft and over which sheet material passes. The clipper shaft rotates intermitt... | 03/30/1976 |
