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7631632 |
Orbital engine/pump with multiple toroidal cylinders
The orbital engine or pump comprising of drive train, having several elliptical gears each rotating around focal point with focal distance defined as function of minimum vanes opening, and toroidal...
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7581463 |
Gear modification that enables direct off-center engagement
A gear and a method for combining a first gear with a second gear including the steps of moving the first gear relative to the second gear such that a first tooth of the first gear contacts a...
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7580324 |
Drive wheel for integration into a clock movement
A drive wheel for integration into a clock movement, in particular into the clock movement of wristwatches, with at least a dented section by whose teeth a downstream wheel is rotatably drivable...
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7543517 |
Gear made of resin and image forming device having the resin gear
A gear made of a resin including a cylindrical toothed portion formed at a radially outer location, a shaft-supporting section formed at a radially inner location around the rotational center of...
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7366058 |
Gear for watch movement
Gear for day of the month display mechanism in a watch movement, including:
a driving organ ( 1 ), a driven organ ( 50 ), characterized in that said driving organ ( 1 ) is provided with z 1 ...
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7296492 |
Animated toy with geneva mechanism
An animated children's toy including a gear system for providing intermittent and reciprocal motion. The gear system includes a drive gear and a driven gear. The gear system is adapted to have a...
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7258037 |
Gear protected against overloading
The invention concerns a gear for precision devices comprising at least two mutually co-operating toothed wheels ( 10, 14 ). The teeth ( 12, 16 ) of the two wheels have the same thickness (e) and...
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7232391 |
Synchronous drive apparatus and methods
A synchronous drive apparatus and method, wherein the apparatus comprises a plurality of rotors comprising at least a first and a second rotor. The first rotor has a plurality of teeth for engaging...
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7069804 |
Gear linkage device with real time check
A gear linkage device with real time check. The gear linkage device with real time check includes a first gear link and a second gear link. The first gear link includes a flange provided with a...
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7036392 |
Transmission system having a gear with engaging and non-engaging semi-annular sections
A transmission system including a first gear comprising a first side having an engaging semi-annular section and a non-engaging semi-annular section; and a plurality of engaging gears for engaging...
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6905432 |
Chain drive arrangement
A chain drive for pivot chains ( 7 ) or round link chains ( 8 ) having spur gears ( 2 ) and a polygonal chain wheel ( 10 ) reduces variations in velocity and acceleration transferred to the chains...
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6886527 |
Rotary vane motor
A rotary vane motor uses a gear train arrangement for controlling the position of the vanes as well as the compression ratio of the motor. The motor includes a first pair of vanes namely a leading...
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6802645 |
Escapement for timekeeper
The escapement ( 1 ) arranged between a motor gear train and a roller ( 2 ) to which is attached a sprung balance of a timekeeper, the balance being able to describe an arc of free oscillation and...
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6786125 |
Cutter device for a printer
A cutter device has a movable blade, a stationary blade, and a clutch mechanism having a driven gear mounted for undergoing rotation in clockwise and counterclockwise directions and a driving gear...
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6761083 |
Drive device comprising an eccentric gearing
The invention relates to a drive device, for driving a regulating unit. Said device has a gearing ( 20 ) mounted between a motor ( 10 ) and the regulating unit ( 30 ). The gearing ( 20 ) has at...
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6739540 |
Seat belt retractor
A seat belt retractor having a structure preventing a gear or pinion having external teeth from being improperly assembled to a spool gear. The pinion includes concave portions on its inner...
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6708576 |
Escapement for a timekeeper
The escapement includes first ( 3 ) and second ( 4 ) escapement wheels meshing with each other, one of these wheels being driven by the gear train. It further includes a lever ( 5 ) capable of...
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6684743 |
Staggered gear for bi-directional operation
A gear drive system for a printer designed to print upon a continuous roll of paper and having a blade used to cut off printed portions of paper from the paper roll is implemented. The gear drive...
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6672363 |
Window shade with a shade panel
The invention pertains to a window shade with a shade panel, with a rotatable winding shaft 1 for winding up the panel onto the winding shaft 1 to form a roll 2 and for unwinding the panel...
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6604437 |
Intermittent transmission apparatus
An intermittent transmission apparatus according to this invention, broadly, includes a driving element and a driven element. The driving element comprises a first cam having a first cam surface, a...
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6457452 |
Mechanism for interconnecting first-and second-shafts of variable speed rotation to a third shaft
A rotary piston engine ( 20 ) is shown that includes a housing ( 22 ) having a toroidal working chamber with inlet ( 56 ) and exhaust ( 54 ) ports. First and second piston assemblies ( 30 and 32...
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6457451 |
Rotary piston engine
A rotary piston engine ( 20 ) is shown that includes a housing ( 22 ) having a toroidal working chamber with inlet ( 56 ) and exhaust ( 54 ) ports. First and second piston assemblies ( 30 and 32...
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6293884 |
Cluster sprockets for bicycle transmissions and other prime movers
This invention comprises a multi-sprocket or cluster gear assembly with a plurality of progressively sized sprockets or gears that are positioned adjacent to each other so as to define an...
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6289754 |
Drive apparatus for a forming machine
A drive unit for a forming machine, comprising a rotary drive and a knuckle-joint drive for a gear transmission operating a ram, the knuckle-joint drive being operationally connected through a gear...
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6276160 |
Ice maker with a motor having gears with means to intermittently rotate a gear thereof
A motor having gears which transmit rotations of a rotor to an output shaft through a gear mechanism made of gear trains, comprises a gear mechanism provided with an intermittent rotation mechanism...
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6212967 |
Variable gear assembly and method
A variable gear assembly has a cam gear with a plurality of teeth of varying size and configuration, and a rotatably mounted roller gear has a plurality of rollers for meshing engagement with the...
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6182550 |
Staggered gear for bi-directional operation
A gear drive system for a printer designed to print upon a continuous roll of paper and having a blade used to cut off printed portions of paper from the paper roll is implemented. The gear drive...
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6137962 |
Power transmission apparatus with built-in phase control
A power transmission apparatus adapted for an apparatus such as a camera or the like includes a first toothed wheel having teeth at least one predetermined tooth of which differs in tooth thickness...
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6095007 |
Staggered gear for bi-directional operation
A gear drive system for a printer designed to print upon a continuous roll of paper and having a blade used to cut off printed portions of paper from the paper roll is implemented. The gear drive...
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6082206 |
Motor having gears with means to intermittently rotate a gear thereof
A motor having gears which transmit rotations of a rotor to an output shaft through a gear mechanism made of gear trains, comprises a gear mechanism provided with an intermittent rotation mechanism...
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5983751 |
Single gear train bicycle drive mechanism
Apparatus to drive a bicycle wherein two pedals move in a non-fixed, non-180 degree relationship to each other. As the pedal that is being powered by the user moves through an arc less than 180...
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5983439 |
Windshield wiper assembly having a variable speed drive mechanism
A windshield wiper drive mechanism which interconnects a motor and a wiper assembly which is movable between an in-wipe position and an out-wipe position on a windshield. The drive mechanism...
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5931263 |
Quasi-elliptical bidirectional progressive safety
An elevator safety based on having the elevator lift-rod, under the influence of the elevator governor, cause to rotate approximately elliptical cams, called quasi-elliptical cams. The cams are...
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5882025 |
Bicycle with rhombus-like gear with circularly curved apexes
A bicycle is disclosed with a rhombus-like (preferably 60°-120 °), with circularly curved apexes, drive sprocket gear and a circular driven sprocket on the ear driven wheel. This gear arrangement...
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5619388 |
Tape loading device
A tape loading device includes: a plate, cam which moves in a straight line at a constant speed; a rack provided on the plate cam; an arm load gear provided with a gearwheel which engages with the...
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5542308 |
Crank mechanism and machines, especially engines, using same
An eccentric crank mechanism which communicates motion between a reciprocating piston and a rotary shaft comprising a crank pin having a connecting rod of the piston concentrically journaled...
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5517931 |
Intermittently discharging method and reciprocating pump
A plunger pump suitable for an apparatus for injecting liquid under high pressure through a plurality of nozzles (104) into the turf. A plunger (34) of the pump is connected through a connecting...
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5440945 |
Hardgeared infinitely variable transmission
A hardgeared infinitely variable transmission (IVT) is provided in which at least one quick return mechanism is hardgeared to the rotating transmission input shaft. The quick return mechanisms...
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5419213 |
Apparatus and method for the silk-screen printing of multiple curved peripheral surfaces of an article defined by multiple curved peripheral surfaces
Silk-screen printing apparatus is provided for the silk-screen printing of articles such as oval-shaped bottles and containers on the two major curved peripheral surfaces thereof, sequentially,...
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5405300 |
Mechanism for intermittent rotation of first and second shafts and continuous rotation of a third shaft
A rotary piston engine (20) is shown which includes a housing (22) having a cylindrical working chamber with inlet (56) and exhaust (54) ports. First and second piston assemblies (30 and 32) each...
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5317927 |
Measuring device
A measuring device includes a measuring mechanism, a counting mechanism, a variable transmission gear assembly disposed between the measuring mechanism and the counting mechanism, and an adjustment...
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5251507 |
Non-circular gear pair
In a non-circular gear pair comprising two non-circular gears maintained engaged, those gears have first and second intermeshing rotation parts in such a manner that the first intermeshing rotation...
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5224847 |
Rotary engine
Improved rotary engines and related rotary mechanisms have a pair of interfitted rotor discs with peripheral rotor heads that define a circular series of chambers in a housing. A non-circular gear...
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5209134 |
Synchronous bidirectional gearing mechanism
A bidirectional synchronous gearing mechanism includes a first gear with a first and second gear profile and a second gear identical to the first gear and with identical first and second gear...
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5170677 |
Elliptic gear having a constant velocity portion
An elliptic gear having a constant velocity portion, wherein a pitch circle is a closed curve composed of: a constant velocity portion pitch curve, in which the radius from the center of rotation...
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5146803 |
Noncircular rolling joints for vibrational reduction in slewing maneuvers
A rolling joint is provided for obtaining slewing maneuvers for various apparatuses including space structures, space vehicles, robotic manipulators and simulators. Two noncircular cylinders,...
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5142937 |
Driving apparatus with a speed changer for a bicycle
A driving apparatus with a speed changer for a bicycle using a pair of non-circular gears for performing an exponential function angular velocity modulation for the speed changer. The driving...
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5111707 |
Engine starter apparatus
An engine starter apparatus comprising first and second noncircular gears, a pinion, and a starter motor. The pair of noncircular gears is interposed between a crankshaft and a ring gear of an...
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5050697 |
Steering apparatus for automotive vehicle
A steering apparatus capable of changing a steering angle ratio of dirigible road wheels relative to a rotation amount of a steering wheel. The steering apparatus includes an input member arranged...
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RE33612 |
Ice maker system
A timing mechanism controls various functions of an ice maker through cams carried on a camshaft. A harvest rake that removes ice from a receptacle is coupled to the camshaft to be rotated thereby....
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