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| Number | Title | Issue Date |
| 7526976 | Control device for periodical driving system A periodical driving system includes a circular wheel having a plurality of radial recesses defined in an outer periphery of the wheel and each recess is defined by two inner sides and each inner side includes an inward curved section so as to form a convergent open... | 05/05/2009 |
| 7159831 | Adjusting device An adjusting device (3) is suitable especially for use on a stand (1) for a surgical microscope (2). The adjusting device (3) makes it possible to move the surgical microscope (2) in a plane (9) perpendicular to the optical ... | 01/09/2007 |
| 7086304 | Roller cam assembly A transmission comprises a pair of drive shafts, one an input shaft and the other an output shaft, wherein one of said shafts is attached to a toothed cam having a trochoidal profile and the other drive shaft is attached to a roller ring having a plurality of cylind... | 08/08/2006 |
| 6948402 | Rotary work table with cycloidal drive gear system A rotary table or turntable includes a work supporting platform with a driven pin carrier attached thereto. The pin carrier includes a circular array of pins engaged with a driven cycloidal gear. The cycloidal gear is driven by a prime mover, such as a servomotor, a... | 09/27/2005 |
| 6902507 | Roller cam assembly A two-stage epicyclic roller cam transmission comprising in each stage: a roller ring having a plurality of fixed-position rollers; and a cam gear having pitch-circle-generated, trochoid-shaped teeth and independent pitch, wherein the rollers are spaced to mesh with... | 06/07/2005 |
| 6846258 | Gas turbine power generation facility There is provided a planetary reduction gear 10 between a gas turbine 1 and a generator 5. The planetary reduction gear includes elastic deformation unit 12 on an output side, and for the elastic deformation unit, a strain energy within a... | 01/25/2005 |
| 6458058 | Speed reducer in a portable electric tool A speed reducer in a portable electric tool is specifically referred to a powered tool for automotive repair with lighter weight and 12V direct current motor. The speed reducer comprises a casing to be attached by the 12V direct current motor, an end plan... | 10/01/2002 |
| 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 teeth. The distance of each roller from the rotation axis a... | 04/10/2001 |
| 5596937 | Delayed motion drive for model railroad locomotives It is frequently observed that when a real locomotive starts up, the front set of drive wheels commences to turn before the rear set of drive wheels begins to turn. The present invention is a simple device that permits this effect to be simulated in a mod... | 01/28/1997 |
| 5497671 | Pineapple gear and method of manufacturing the same A gear combination is disclosed in which a spherical body has a plurality of grooves defined therein into which a pin gear enmeshes. Substantially all the pins on the pin gear engage the grooves in the spherical body at all times. The spherical body rotat... | 03/12/1996 |
| 5413009 | Variable speed transmission assembly A new type of gear is provided which endorses a new type of slide pin gear having a plurality of holes within which a plurality of rounded pins travel traversely. The slide pin gear travels in combination within two corresponding exterior ruffled plates a... | 05/09/1995 |
| 4848173 | Machine for moving workpieces and the like A machine for rhythmic and reciprocal movement of workpieces and the like in at least two successive steps is described. A carriage for moving the pieces has a drive in the form of at least two synchronously operating crank pins (12, 13), each engaging a ... | 07/18/1989 |
| 4699023 | Mechanical reducer It comprises a motor shaft (1); a driven member (5), revolving at different speeds; two reduction members (6, 7) comprising each a series of driving elements (10, 11). The two reduction members (6, 7) are coaxial between themselves and with respect to the... | 10/13/1987 |
| 4602527 | Differential gearing A differential for motor vehicles and the like effectively providing smooth power transmission from an input drive shaft driving two gears fixed axially spaced thereon driving with pin-like teeth, on side faces thereof, a driven gear having peripheral tee... | 07/29/1986 |
| 4424722 | Rack and pinion drive arrangement The arrangement is especially intended for mining equipment for driving a winning machine 20 along a face conveyor 11, on which the machine rides. The conveyor sections carry corresponding rack sections 30 having formations 40 each comprising two laterall... | 01/10/1984 |
| 4327597 | Torque converter Multiple slotted drive disks are secured in parallel relationship to a drive shaft. The slots are radially arranged and the slots of each disk are aligned. Movable rods are received in the slots. A slotted driven disk is secured to a driven shaft, which d... | 05/04/1982 |
| 4326431 | Variable-speed transmission device with positive action This invention deals with a variable-speed transmission device which provides a positive or mechanical connection between its drive and driven shafts. The transmission device of the present invention is comprised of a drive wheel and a driven wheel which ... | 04/27/1982 |
| 4299133 | Gearing A gearing has on its driving shaft a drive means carrier member carrying drive means in the form of pins protruding towards a driven means carrier member fixed to the driven shaft and carrying divergently arranged driven means. The driven shaft is offset ... | 11/10/1981 |
| 4093036 | Irrigation tower drive An irrigation tower structure is provided including support and drive wheels for supporting and driving the tower from and over ground to be irrigated. The tower has a driven shaft journalled therefrom and wheel driving shafts journalled therefrom. A plur... | 06/06/1978 |
| 4077273 | Supported pin-type gear structure A supported pin-type gear structure is disclosed wherein a plurality of pin-means are provided in a circumferentially and radially spaced pattern around the flat face of a supporting element. The pins extend from the face of the element, and the free ends... | 03/07/1978 |
| 4062250 | Gear train for interconnecting side-by-side positioned drums, rolls, wheels, etc. The digit rolls of a counter a connected through transfer pinions in that pins extending axially from one roll towards another one engage a pinion once per revolution and the pinion turns the other roll by one step. The pins of the two rolls overlap axial... | 12/13/1977 |
