Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 6654988 | Stoppable zipper slider capable of being reassembled with pull tab A stoppable zipper slider is mainly a set of sustaining leaf springs, consisting of a single or a pair of pieces, on the inner surface of the covering portion of the zipper slider. The set of sustaining leaf springs, of single piece or two pieces, with on... | 12/02/2003 |
| 6647599 | Positioning mechanism of a zipper slide A positioning mechanism of a zipper slide for engaging or disengaging two lengths of teeth on two opposite teeth tapes is disclosed. The positioning mechanism includes: a main body having a buckling portion, a plane surface, a recess, and a support portio... | 11/18/2003 |
| 6637078 | Slider for slide fastener with locking device It relates to a slider for slider fastener with locking device where a sheet-like spring having a locking pawl at one end is fixed at the other end on a body. A bent portion of a spring portion of the fixed spring is exposed at a guide post, and a pull is... | 10/28/2003 |
| 5611121 | Automatic lock slider for concealed slide fastener In an automatic lock slider for a concealed slide fastener, a fastener-element guide post of a slider body has an upper groove receiving a locking lever and a lower groove slidably receiving a sliding end of a pivoting release member. A spring mounted in ... | 03/18/1997 |
| 5031286 | Slider for a slide fastener A locking slider assembly is shown for use with a slide fastener having separable fastener elements having a slider body, upper and lower spaced parallel wings joined at their front ends on the body. A pair of upstanding body tabs are upstruck from the up... | 07/16/1991 |
| 4139928 | Slider for slide fasteners A slider for slide fasteners has a retaining member mounted on the slider body and having at one end a downwardly extending anchoring portion including a reduced neck and shoulders on opposite ends thereof, defining therebetween a pair of clamping recesse... | 02/20/1979 |
| 4074399 | Slider for slide fastener A slider for a slide fastener is disclosed which includes a slider body, a locking spring and a pull tab. The locking spring includes a locking prong extending through the slider body to engage the coupling elements of the slide fastener to lock the slide... | 02/21/1978 |
| 3956800 | Automatically locking slider for slide fasteners An automatic slider lock mechanism including a locking leaf spring arranged longitudinally over the slider body and having a locking pawl at its rear end which normally projects into the usual Y-shaped guide channel in the slider body for interference con... | 05/18/1976 |
| 3952379 | Automatically locking slider An automatic slider lock mechanism including a locking leaf spring arranged longitudinally over the top wing of the slider body and having one end secured to the flared front end of the slider body. A locking pawl formed at the other end of the locking le... | 04/27/1976 |
