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"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 7942073 | Device for transmitting rotary motion Device for transmitting rotary motion in a diverter switch comprising a motion-transmitting member for transforming an alternating rotary motion of a drive shaft into a unidirected rotary motion of a driven body driven about driven shaft. The motion-transmitting mem... | 05/17/2011 |
| 7475609 | Power ratchet wrench The power ratchet wrench has a body, a planet gear device and a mounting bracket. The body has an outer thread and an annular flange. The planet gear device is connected to the body and has three transmitting gear wheels, a rotating bracket, a bearing and a mounting... | 01/13/2009 |
| 7178427 | Motor driven harmonic drive actuator having an interposed output mechanism A relatively small, lightweight electromechanical actuator includes a motor assembly, a harmonic drive, and an interposed gear assembly that functions as an output mechanism. The motor assembly, harmonic drive, and gear assembly are coupled together in an in-line co... | 02/20/2007 |
| 7100466 | Angular velocity profile generator An angular velocity profile generator [22,24] comprising an input shaft [46], an output shaft [56], a universal joint coupling the shafts by pivot pins [70,75] situated on two pivot axes which are normal to one another, means [49] ... | 09/05/2006 |
| 7040185 | Device for driving an output mechanism A device for driving an output mechanism has a rotationally drivable input shaft, a structure located between the input shaft and the outlet mechanism for transmitting a drive torque to the input shaft to the output mechanism, wherein a non-positive functional conne... | 05/09/2006 |
| 6980901 | Method and device for operating an internal combustion engine A method and a device for operating an engine, in particular of a vehicle, avoid a jump of an output variable of the engine and therefore a jolt of the internal combustion engine in specific operating states of the engine. In this case, the output variable of the in... | 12/27/2005 |
| 6647824 | Gear indicator for a bicycle A gear indicator for use on a bicycle is provided remotely from the shift operating device. The gear indicator is coupled to a shift operating device via an indicator cable. The gear indicator basically includes a housing with an indicator member slidably... | 11/18/2003 |
| 6265967 | Display device for bicycle A cable operated display device for a bicycle is provided in which the cable can be easily installed or replaced. The cable operated display device includes a mounting portion, a housing, an internal take-up element and a lid. The mounting portion is adap... | 07/24/2001 |
| 6240795 | Cam-controlled power differential gear for a sheet acceleration system A cam-controlled power differential gear transmission for a sheet acceleration system, which is formed of a pregripper having an acceleration course determinable by a control cam driven at a single speed, includes two compensating masses pivotably support... | 06/05/2001 |
| 6231468 | Desmodromic mechanism A desmodromic mechanism having transmission elements connected to and supported by an intermediate element and a primary and a secondary cam both in permanent contact with the transmission elements. The transmission elements, the intermediate element, the... | 05/15/2001 |
| 6220107 | Eccentric orbiting type speed changing device Since the phases of pinions 23, 25 and a pinion 24 are deviated by 180 degree, the pinions 23, 25 are acted with the engaging force which is reverse in a working direction to the engaging force of the pinion 24 and is half in the value. At this time since... | 04/24/2001 |
| 5823050 | Motion transforming apparatus Herein disclosed is a motion transforming apparatus, comprising first and second rotation shafts each formed with crank shaft portions, a plate assembly constituted by rotation plates each formed with teeth and cranked through bores respectively having th... | 10/20/1998 |
| 5806369 | Linear motion apparatus A linear motion apparatus is comprised of: a toothed rail (40); a linearly driving mechanism section (50) having a plurality of swinging plates (53), crankshafts (54, 55), and a casing (51); and guiding means for guiding the casing (51) relatively movably... | 09/15/1998 |
| 5771743 | Continuously variable torque transmission with torsion bars and energy recuperating brake device A mechanical continuously variable torque transmission, in particular for flywheel driven, fuel efficient, low emission cars, trucks and locomotives includes structure as follows: three eccentrics 20, 21, 22, mounted on input shaft 18 and carrying needle ... | 06/30/1998 |
| 5626055 | Electrically-driven thrust generator An electrically-driven thrust generator is provided, which can contribute energy saving, and has properties (thrust controllability, swift action etc.) equivalent to hydraulic cylinders and contributes to solve problems (leakage etc.) associated with oil ... | 05/06/1997 |
| 5611243 | Piston advance mechanism for automatic taper The mechanism consists of a crankshaft and connecting rods driving two rods which extend through the full length of the cylinder of the taper. The rods reciprocate 180° out of phase with each other and pass through a piston assembly. Clutch mechanisms in... | 03/18/1997 |
| 5582068 | Motion transforming mechanism and system for producing same A motion transforming mechanism comprises a plate assembly constituted by rotation plates having a common rotation axis, a toothed rail having a parallel rail portion and a mid-longitudinal plane perpendicularly intersected by the common rotation axis and... | 12/10/1996 |
| 5577975 | Variable speed changing gear A variable speed changing gear has an internal friction wheel made of elastic material and a cycloid wheel inscribed to the internal friction wheel. The cycloid wheel is rotated for circulating along the internal friction wheel. Because of the elastic mat... | 11/26/1996 |
| 5477741 | Motion transforming mechanism A motion transforming mechanism comprises a plate assembly and a toothed rail. The plate assembly is constituted by at least three rotation plates having a common rotation axis and each having a plurality of teeth, the rotation plates being respectively f... | 12/26/1995 |
| 5351568 | Rotary speed changing apparatus There is provided by the present invention a speed changing apparatus having a housing mounting a plurality of inwardly directed, circumferentially disposed teeth, preferably in the form of a ring gear. The housing has a hub that rotatably receives at lea... | 10/04/1994 |
| 5237885 | Ratchet tool The tool includes a housing having two substantially semi-cylindrical members. An air motor in the housing has motor end members located adjacent each end thereof. Two O-rings, respectively disposed between the motor and the end members, are squeezable ax... | 08/24/1993 |
| 5187994 | Rotary motion to longitudinal motion converting mechanism A rotary motion to longitudinal motion converting mechanism comprising a passive rack with a plurality of teeth, a plurality of active racks respectively having a plurality of teeth having the same pitch as that of the teeth of the passive rack and meshin... | 02/23/1993 |
| 5081877 | Steplessly variable transmission A steplessly variable transmission is described in which a driving element and a driven element are adjustable eccentrically to one another and are coupled via pivotal levers which are journalled on one element and can be brought into force transmitting c... | 01/21/1992 |
| 5074895 | Intermittent drive for bag house cleaning head An intermittent drive (10) for intermittently advancing a cleaning head (50) for sequential cleaning of filter bags (44) in a bag house (12). The intermittent drive includes a ratchet wheel (80) secured to a central shaft (74) on which the cleaning head i... | 12/24/1991 |
| 4750376 | Variable gear ratio/speed drive A transmission in which gear segments are cammed to mesh with a circumferential gear and to transmit power from a centered shaft through arcs of power determined by the position of segments relative to the shaft. The segments automatically adjust the radi... | 06/14/1988 |
| 4705144 | Spring operating mechanism for a circuit interrupter A spring operating mechanism for a circuit interrupter comprises means for converting the rotation of an electric motor into a rocking motion of a pawl, a ratchet wheel having teeth for being engaged by the pawl to be rotated by the rocking motion of the ... | 11/10/1987 |
| 4653344 | Laterally-disengageable bearing system This bearing system has been developed primarily for long rotating shafts having a number of support points and supported objects. A beam is preferably extruded with a T-slot in one face. The slot receives the heads of mounting bolts securing a split bear... | 03/31/1987 |
| 4650118 | Pop-up gear driven sprinkler head A gear driven sprinkler head with a pop-up spray nozzle driven by a water-flow powered motor. The nozzle is rotated incrementally through an adjustable arc to irrigate a sector of a particular size, and it is automatically reversed at the end points of th... | 03/17/1987 |
| 4584890 | Device for rotating, at will and step by step, a shaft driven from a driving shaft A device for rotating at will, step by step, a shaft (2) driven from a drive shaft to which is imparted a continuous uninterrupted rotational movement in an invariable direction, comprising means for transforming the continuous rotational movement of the ... | 04/29/1986 |
| 4568060 | Shower installation and valve therefore A valve for use in a domestic water installation such as a shower is moveable between open and closed positions by an operating mechanism. The mechanism includes a ratchet that provides intermittent unidirectional drive to the valve member from a manual o... | 02/04/1986 |
| 4538474 | Impulse variable speed device The impulse variable speed device comprises an input shaft (2) and output shaft (2) both axially aligned. The input shaft is kinematically connected to a mechanism for converting rotary motion of the input shaft into an oscillating motion of an intermedia... | 09/03/1985 |
| 4467664 | Timer drive mechanism The timing cam is advanced for switching purposes by the large reciprocating pawl acting on the ratchet teeth molded on the timing cam. When the program requires a timed period during which conditions remain the same the ratchet teeth are spaced so the pa... | 08/28/1984 |
| 4347919 | One revolution clutch assembly using gears A one revolution clutch assembly is provided which transmits the rotation of a normally rotating drive shaft to a driven rotating body through gears and which interrupts the rotation of the driven body when it has rotated through one revolution. The one r... | 09/07/1982 |
| 4319101 | Sequential timer with programmable dual frequency drive There is disclosed a sequential timer with a programmable dual frequency drive. The timer includes a relatively flat housing which mounts a circular, flat disk having arcuate switch actuating cams on at least one face thereof. A plurality of switches are ... | 03/09/1982 |
| 4311059 | Means providing intermittent motion to a cam means of a timing mechanism A geneva drive means is used in combination with an eccentric drive means to provide intermittent motion to a cam means.... | 01/19/1982 |
| 4242050 | Windmill power generator A windmill powered generator having one or a plurality of wind operated motor units, each being operably connected to a single power drive shaft to effect rotation of said drive shaft regardless of the rotational direction of the wind operated rotary unit... | 12/30/1980 |
| 4215585 | Ultrasonic scanner An ultrasonic scanner, comprising a holder for supporting the ultrasonic probe, said holder being rotatably pivoted by a pivoting shaft, a rotating shaft whose axis is perpendicular to the axis of the pivoting shaft pivoting the holder, and a motion-conve... | 08/05/1980 |
| 4138904 | Link drive mechanism for mechanical presses A link drive mechanism for vertically moving the slide of a mechanical press comprises a power driven eccentric unit carried by a horizontal shaft arranged substantially vertically above the connecting means for the slide and having first and second adjac... | 02/13/1979 |
| 4091684 | Variable speed control apparatus A variable speed control apparatus is provided for operating a work member in a first mode at a given uninterrupted speed and in a second mode intermittently in incremental movements. The apparatus comprises a drive motor, actuator means drivingly associa... | 05/30/1978 |
| 4037493 | Positioning and indexing apparatus An apparatus is disclosed herein for driving and selectively stopping a platform at predetermined work stations which includes a frame rotatably supporting the platform and a index wheel coupled to the platform in fixed relationship therewith. A drive whe... | 07/26/1977 |
