Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7335130 | Toroidal-type continuously variable transmission A toroidal-type continuously variable transmission has a casing; an input disk and an output disk rotatably supported concentrically with each other; a plurality of power rollers each held between the input and output disks; a plurality of trunnions disposed at posi... | 02/26/2008 |
| 4872395 | Crosshead per se, and in combination with a connecting rod assembly and a piston rod The crosshead has a body formed of solid, metal plate, and of substantially U-shape. It comprises a pair of spaced-apart parallel limbs which are bridged between by an integral transverse member, and the latter is bored through to receive a piston rod the... | 10/10/1989 |
| 4767221 | Compliant hydrodynamic gas lubricated thrust bearing A self-pressurizing compliant gas thrust bearing includes a resilient support system having a multi-stage spring arrangement for supporting a flexible foil. The compliant and resilient support system enables the bearing to accomodate extreme transient loa... | 08/30/1988 |
| 4609062 | Heavy-duty industrial weighing scale A weighing scale of the type utilizing a lever assembly to transfer a load from a weighing platform to a weight indicator by way of a suspension assembly interconnecting a platform load-transmitting beam to a lever of the lever assembly, with a suspension... | 09/02/1986 |
| 3950859 | Angular displacement measuring apparatus Angular displacements are measured relative to either an external magnetic field as in a compass or relative to a vertical reference as in inclinometers or the like by selective orientation of the device. A bistable weight balancing apparatus and a dual b... | 04/20/1976 |
