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Class 74/384 - Spur


Subclass of Class 74 - Machine element or mechanism
Definition: Spur gearing.
No. of patents: 59
Last issue date: 06/05/2007


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NumberTitleIssue Date
7225697Power transmission arrangement
A power transmission arrangement includes a shaft, a first gear mounted on the shaft, a plate supported by the shaft and rotatable between a first position and a second position, a second gear supported by the plate and engaged with the first gear, and a third gear ...
06/05/2007
7096754Nested sector gears
A sector gear is formed as one of a pair of mirror image gears (12, 14). Each of the sector gears has an arcuate portion (16) having a series of teeth (18) on an outer periphery thereof, and a V-shaped base portion (20) having a first leg...
08/29/2006
7070347Printer with a pivoting gear mechanism
A printer, suitable for use in a hand held printer, having a dual direction drive mechanism for driving ink ribbon in a forward feed direction and a reverse feed direction. The drive mechanism is mounted in a printer body, and includes a stationary gear drive assemb...
07/04/2006
6938736Electric parking brake mechanism
An electric parking brake mechanism characterized in an electric parking brake for pressing a friction member to a braked member via a force transmission converting mechanism for converting a rotational movement of an electric motor to a linear movement, including a...
09/06/2005
6338401Movement control device
A movement control device has a DC motor by which a recording medium is moved by one frame of image, and a stepping motor by which a recording medium is moved by a small predetermined amount. A driven gear fixed on the output shaft of the DC motor is mesh...
01/15/2002
6289758Gear module
There is disclosed a gear module comprising an output gear pivotally fitted to a base, a transmission gear rotated by a driving force from a driving motor to transmit the driving force to the output gear, a power actuating lever having a base end pivotall...
09/18/2001
6186018Binocular with rotation transmitting system
A binocular includes first and second swingable bodies respectively accommodating telescope systems. The binocular further includes two drive rings respectively provided to the swingable bodies and an operation knob. A transmission unit is provided to tra...
02/13/2001
6070482Gear module
There is disclosed a gear module comprising an output gear pivotally fitted to a base, a transmission gear rotated by a driving force from a driving motor to transmit the driving force to the output gear, a power actuating lever having a base end pivotall...
06/06/2000
5743544Wheelchair drive system with ratchet and wheel lock
An improved wheelchair wheel and hub assembly is described that interposes reduction gearing between the handring or rotatable hand wheel and the drivewheel of the assembly. This gearing provides some mechanical advantage to users who may lack sufficient ...
04/28/1998
5586582Support assembly for a planetary-type selvage unit on a loom
A support shaft for a planetary-type selvage unit on a loom is mounted at its proximal end to a drive shaft for the selvage unit in an arrangement swingable between operative and stand-by positions. A locker unit is attached to the support bracket in orde...
12/24/1996
5497844Crawler gear assembly
A child's riding vehicle employing a unique and novel gear assembly and engagement structure includes a frame having plural wheels, and a gear assembly fixed on the frame which includes an output gear non-rotatably connected to at least one of the vehicle...
03/12/1996
5417370Transmission device having an adjustable oscillating output
A transmission device having an input shaft and oscillating output gear with an oscillating connection therebetween. The oscillating connection comprising a pivoted gear cage with oppositely rotatable driving gears, the gear cage having a mechanism to piv...
05/23/1995
5304088Drive apparatus for vehicle toy
When an electric motor is rotated normally, a left-hand driving wheel is rotated normally by a drive gear through a large gear, a left-hand small gear, and a left-hand driven gear, and a right-hand driving wheel is also rotated normally through a right-ha...
04/19/1994
5201088Patient examination table having a simplified tilt mechanism
A patient examination table, of the type used in an x-ray examination apparatus, has one end secured to a ceiling or floor stand via a tilt mechanism which permits the longitudinal axis of the table to be tilted upwardly or downwardly. The table can be ti...
04/13/1993
5155400Displacement control motor
A displacement control motor provided with a continuously rotary shaft and a reel capable of changing deflection angle according to the rotary speed of the motor whereby other articles can be carried, driven, or controlled via the reel; the motor includin...
10/13/1992
5150627Control device for a tiltable mounting head
A control device for a tiltable mounting head, such as the mounting head for a camera, includes a pantographic-type linkage. The angular position of an arm (24) supporting the mounting head (26) is controlled relative to a locating arm (12), whose remote ...
09/29/1992
5150630Power switching apparatus with power switching timing
A power switching apparatus in accordance with present disclosure includes a sun gear which can be driven to rotate in a first and second direction, an arm which can swing freely relative to the rotating axis of the sun gear. A transfer gear is pivotally ...
09/29/1992
5140379Position control apparatus for transfer drum in electrostatographic printer/copier
In an electrostatographic printer and/or copier, toner images are transferred from the outer surface of a rotating image process drum to a receiver sheet carried on the outer surface of a rotating transfer drum as the respective drum surfaces pass through...
08/18/1992
5098210Sheet feeding apparatus for a printing machine featuring a resiliently supported arm and planetary gear
The present invention, whose auto sheet feeder is demountably mounted on a printing machine, which includes a sequential arrangement of a reversible motor, a transmission mechanism, and a rotatable platen, is provided with an input gear, an arm whose one ...
03/24/1992
5031471Sequence control mechanism employing gear mechanism
A sequence control mechanism having a drive gear driven by a motor, a pivot arm mounted on a same shaft as that of the drive gear, a transmitting gear which is supported by a shaft mounted on the pivot arm and is cooperated with the drive gear, partly-too...
07/16/1991
5020386Reversing mechanism for a motor drive
The reversing mechanism (10, 200) for the motor drive comprises an electric motor (39) which drives a shaft (41) having mounted thereon a first gear (44) and a shifting mechanism in the form of a flywheel (100). The first gear (44) engages a second gear (...
06/04/1991
5016493Variable speed gearing assembly
A mechanical transmission device to provide selective gear speed output from a constant input. A variation gear affixed to an adjustable crank determines output speed of a free floating following gear and connecting rod assembly dependent on the relative ...
05/21/1991
4960006Turning gear engagement device
A turning gear apparatus mounted adjacent the bull gear of a large turbomachine rotor has a carriage pivotably mounted to the frame, a first pinion rotatably mounted on the carriage, and a second pinion continuously engaging the first pinion and rotatably...
10/02/1990
4927094Open-face fishing reel of the fixed-spool type
An open-face fishing reel of the fixed-spool type has a housing and a spindle rotatably and axially displaceably mounted therein. A line spool is non-rotatably connected to the spindle and axially fixed to one end thereof. A drive shaft is mounted in the ...
05/22/1990
4865569Variable height marine propulsion mechanism
A marine propulsion mechanism is provided with a variable height mechanism for varying the height of the propeller relative to a boat. The variable height mechanism includes an input gear connected to the engine drive shaft and an output gear connected to...
09/12/1989
4862766Device for driving a can plate of a spinning preparation machine
A device for driving a rotatable can plate of a spinning preparation machine. The device includes a drive gear, a driven gear engaged by and driven by the drive gear for rotation in a direction opposite to the direction of rotation of the drive gear, an i...
09/05/1989
4709865Dual condiment mill
A condiment mill has a pair of separate compartments each for containing a different condiment, such as peppercorns and salt crystals. At the bottom of each compartment, a grinder is installed for grinding the condiment. A shaft is provided for rotatably ...
12/01/1987
4669333Planetary gear mechanism
A gear mechanism includes a pair of drive transmission gears laterally movably disposed between a base plate and a housing provided on the base plate, and a control structure for restricting the lateral movement of the drive transmission gears. Turning fo...
06/02/1987
4643038Electric motor servo for cruise control
A pair of coupling elements connected between an electric stepper motor and an engine throttle are selectively engaged and disengaged by a lever mechanism which effects a relative movement between the coupling elements in response to a mechanical input fr...
02/17/1987
4638957Brake engagement mechanism for a web press
A mechanism is provided for engaging a first gear with a second gear that is used to connect and disconnect a brake mechanism and a roll shaft within the unwind station of a web press. The first gear is mounted for rotation to a first shaft secured to a f...
01/27/1987
4621535Forward engagement and reverse disengagement device
A drive roll 14 carries a gear (60) that engages a reversing gear (58) driven by a planetary gear (56) on a pivot arm (50). The planetary gear (56) is driven by a sun gear (48) that rotates about the pivot axis of the pivot arm (50) and in turn is driven ...
11/11/1986
4577528Driving/turnaround device for a remote controlled toy vehicle
A driving/turnaround device in use with a remote controlled toy vehicle comprises a reversible motor operable by an external command, an intermediate gear being in mesh with a gear rotated by the motor, a pair of axles being independently provided for rig...
03/25/1986
4532485Fine adjusting mechanism for preset type tuner
An improved fine adjusting mechanism for a preset type tuner, which is so arranged that, with a ring having cam portions being fitted under pressure onto a fine adjusting shaft of a tuner for simultaneous rotation with it and also for slippage with respec...
07/30/1985
4466305Reverse idler gear operating mechanism
A reverse idler gear is mounted for rotation but against axial movement on a swingable reverse idler shaft and adapted to be moved into mesh with other gears to reverse the drive line or disengaged from same in response to the ocillatory motion of the rev...
08/21/1984
4430575Turbine turning gear with hydraulic overspeed drive
A turning gear arrangement for a turbomachine such as a large steam driven turbine-generator is disclosed. The turning gear arrangement includes a prime mover system which generates high starting torque for rolling the rotor of the turbine-generator over ...
02/07/1984
4422263Gear changing mechanism for toy vehicle driving devices
A toy vehicle is disclosed including a gear changing mechanism for use in conjunction with a flywheel driving device. The mechanism comprises a gear changing lever pivotally mounted to a frame by means of a pin. The lever is biased in one direction by mea...
12/27/1983
4382683Mixing machines
In a rotary drum mixing machine of the kind in which the drum is rotated in opposite directions to mix and eject its contents respectively by a prime-mover operating through driving and driven means on a prime-mover driven shaft and the closed end of the ...
05/10/1983
4347009Operator interchangeable gear driven platen and platen drive mechanism for typewriters and printers
A support for an idler gear is pivotally mounted about the driving gear axis in a gear driven platen drive for a typewriter. A constraining member mounted with the interchangeable platen engages and constrains the support in a position to insure engagemen...
08/31/1982
4338853Means to minimize the backlash of meshing gears
A precision power gear train assembly particularly adaptable for use with vehicles having a 360° rotatable turret mounted thereon. The assembly embodies novel spring and stop means to minimize backlash and to limit gear tooth disengagement of the enmeshe...
07/13/1982
4328713Controlling translation
A completely mechanically operated microscope bridge includes rapid rough positioning, fine positioning, coarse focusing and fine focusing with an automatic locking system locking the microscope at the position set by the operator whether power is on or o...
05/11/1982
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