Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7121160 | Mechanical transmission A constant power mechanical transmission with seamless, ripple free, infinitely variable torque multiplying outputs comprises an input shaft and an output shaft. The input shaft is coupled to a pair of oscillating levers whereby rotation of the input shaft causes os... | 10/17/2006 |
| 6925899 | Hollow steering rack bar and its manufacturing method Described is a steering rack bar which is low in costs, which is hollowed in overall length, and for use in steering equipment for automobiles. A rack is formed on a first steel tube by plastic working, wherein the first steel tube has good plastic workability by lo... | 08/09/2005 |
| 6910397 | Toothing assembly The axis of a gear is to follow a trajectory having a salient point. To this end, the gear rolls along two stationary toothed racks. A change-over toothing is provided between these two toothed racks. This change-over toothing extends non-smoothly with respect to th... | 06/28/2005 |
| 6722222 | Inclined rack and spiral radius pinion corkscrew machine Corkscrew machine including rotatable spiral radius pinion gear mechanically coupled to annular collar and engages inclined gear rack to translate driver up and down carrying freely rotating, helical corkscrew. Crank rotates spiral radius pinion gear to translate dr... | 04/20/2004 |
| 6298740 | Adjustable rotational transmission assembly An adjustable rotational transmission assembly 10 coupled to and provides adjustment of final drive ratio for a driven device 12, such as a bicycle, moped, motorcycle, vehicle, etc. Transmission assembly 10 adjusts rotation or drive radius and drive circu... | 10/09/2001 |
| 5674144 | Continuously variable ratio transmission and method A transmission having ratios from 0:1 to 1:1 is disclosed; the transmission comprises a plurality of clutches for producing a partial rotational output from a reciprocating input, an output gear for collecting the partial output of the clutches, an input ... | 10/07/1997 |
| 5609061 | Turntable with stepping drive Bearing system for a turntable (10) with a stepping drive, in which a table plate (12) is rotatably mounted on ball bearings on top of a housing (14), having drive pins (36) disposed on the same diameter offset at uniform angular distances and protruding ... | 03/11/1997 |
| 5603240 | Mechanical transmission continuously variable from forward to reverse The transmission couples a cam shaft to an output shaft through a plurality of sets of specialized linkages. Each set of specialized linkages comprises: a displacement waveform generator (DWG) comprising a solid cam rigidly attached to the cam shaft, the ... | 02/18/1997 |
| 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 |
| 4990037 | Portable boring machine A boring machine includes a power unit having a housing, a drive member for engaging a boring bar, and a motor for driving the drive member to rotate relative to the housing. The boring machine also includes a bearing assembly comprising an inner bearing ... | 02/05/1991 |
| 4506771 | Method and apparatus for operating clutch and brake control device of machines having intermittent, undirectional operation A method and apparatus for operating a switching device such as a clutch or brake for a moveable element such as a shaft which is driveable by a prime mover such as a rack and pinion device. The clutch selectively connects the shaft to the prime mover and... | 03/26/1985 |
