"Everyone acquainted with the subject will recognize it as a conspicuous failure."
Henry Morton, president of the Stevens Institute of Technology ; Said in 1880 about the light bulb
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| Number | Title | Issue Date |
| 7360634 | Frictional engagement device A device for frictional inter-engagement between two mutually movable parts (13, 14). A lever mechanism exerts counter-directed pressing forces towards both parts to transfers movement between them. A lever (25) has a free lever end (27) contact... | 04/22/2008 |
| 5212996 | Crank drive with planetary pivot pin, favourably for piston power engines and machine tools The drive shaft drive mechanism of the invention converts straight-line motion into rotary motion, or rotary motion into straight-line motion. The mechanism is provided with a pivot-pin connected to one or more pistons, an internally-toothed ring gear, a ... | 05/25/1993 |
| 4844210 | Line clamp Disclosed is a line clamping device which may be remotely and repeatedly operated to clamp line passing through the device. Increasing pressure acting on a piston in the clamp housing moves slips to a position clamping the line while compressing a spring.... | 07/04/1989 |
| 4708567 | Motive power device for a delivery device for a silo or a similar upright container Motive power device for a delivery device located at the base of an upright silo in the shape of a worm screw rotatable about its longitudinal axis, which is swivelable around a central bearing across a circular annularly shaped bottom surface of the silo... | 11/24/1987 |
| 4635772 | Clutch arrangement, particularly for variable speed gears A clutch arrangement for coupling together two mechanisms. A first member comprises a lever arm having a partially cylindrical section, the partially cylindrical section having secured to a planar surface a gripping element extending parallel to and space... | 01/13/1987 |
| 4325264 | Supersonic vibration driven motor device A supersonic vibration driven motor comprising a supersonic oscillator and a mass rotationally driven thereby. The oscillator is provided with a vibration disc secured thereto on an end face thereof opposite to the mass to be driven. The mass is integrall... | 04/20/1982 |
| 3986583 | Force transmitting coupling A coupling for use with two relatively movable members to transmit force between the members comprising a resilient coil element having convolutions positioned between the members and a solid core element positioned within the convolutions of the resilien... | 10/19/1976 |