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An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
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| Number | Title | Issue Date |
| 7261655 | Variable speed flat belt transmission and variable diameter pulley for use in same A belt drive system employs variable diameter drive and driven pulleys interconnected by a flat belt and operative to vary the rotational speed of the driven pulley as in a variable speed transmission. Each pulley includes an internal fluid pressure chamber and diam... | 08/28/2007 |
| 6957735 | Pneumatic spinner drive tensioning assembly An pneumatic tensioner apparatus is disclosed, the apparatus including: a main drive belt; a chuck assembly, suspended from the main drive belt, having a spinning member and a drive contact portion; a first frictional drive belt in a first track, the first frictiona... | 10/25/2005 |
| 5547428 | Transmission A transmission having at least one variable outer diameter pulley which includes a generally cylindrical pipe having four equally spaced penetrating holes radially disposed in its cylindrical wall, a sealing means having a diaphragm positioned adjacent ea... | 08/20/1996 |
| 4878883 | Continuously variable chain drive transmission A sprocket wheel and control mechanism for a chain or belt drive transmission with a continuously adjustable mechanical advantage has diametrically opposed sprocket, spur and/or friction gears offset from the center of the sprocket wheel. Piston and cylin... | 11/07/1989 |
| 4848241 | Aerial tramway system and method having parallel haul ropes An aerial tramway system and method are disclosed in which pairs of haul ropes are mounted to vertically oriented bull wheels. The drive bull wheels are preferably mounted to a common drive shaft to help synchronize haul rope advancement. An adjustment as... | 07/18/1989 |
| 4295836 | Flat belt transmission with rotary actuator and integrated control system A continuously variable flat belt pulley transmission, using integral rotary actuators, is described together with controls to vary the transmission speed ratio upon demand and simultaneously operate an internal combustion engine or electric motor on a de... | 10/20/1981 |
| 4024772 | Variable speed flat belt transmission The subject transmission includes a pair of pulleys mounted for rotation on spaced parallel axes, each pulley having axially spaced sets of oppositely inclined guideways for adjustably receiving drive elements which engage the internal face of an endless ... | 05/24/1977 |
| 3995508 | Automatic bicycle transmission The drive ratio of a bicycle transmission is automatically varied through a radially contractible drive chain sprocket wheel assembly that is drivingly coupled to a pedal driven, drive ratio control disk. A force transmitting spring couples the control di... | 12/07/1976 |
