Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7260902 | Jack for a working implement and method Jack for raising and lowering a working implement such as hydraulically driven snow blades or other utilitarian accessories. Actuation of the jack allows for proper vertical alignment of the lift assembly for engagement to a vehicle chassis. Once engaged, the jack c... | 08/28/2007 |
| 7228650 | Jack for a working implement and method Jack for raising and lowering a working implement such as hydraulically driven snow blades or other utilitarian accessories. Actuation of the jack allows for proper vertical alignment of the lift assembly for engagement to a vehicle chassis. Once engaged, the jack c... | 06/12/2007 |
| 7219452 | Trench wheel apparatus and method of use A trench wheel has a relatively thicker wheel center and gradually tapering side walls that produce a thinner wheel as distance from the hub increases. The wheel center is preferably fabricated from stamped metal into a hat or thimble shape, and has a skirt or brim ... | 05/22/2007 |
| 7103995 | Jack for a working implement and method Jack for raising and lowering a working implement such as hydraulically driven snow blades or other utilitarian accessories. Actuation of the jack allows for proper vertical alignment of the lift assembly for engagement to a vehicle chassis. Once engaged, the jack c... | 09/12/2006 |
| 7073949 | Disk blade bearing hub assembly A maintenance free repetitive sealing system for a disk blade bearing hub utilizing an integrated system of components to seal and protect the primary bearing seal. The blade side of the spindle includes a hub overlap portion which deflects dirt, keeps large debris ... | 07/11/2006 |
| 5678930 | Improved bearing assembly permitting tri-axial movement A bearing assembly has first and second trunnions supporting a bearing and defining a trunnion pivot axis. In the improvement, each of the trunnions is mounted in and supported by a separate cushion member of annular shape. The assembly permits bearing pi... | 10/21/1997 |
| 5487613 | Adaptor for inner bearing ring bore An adaptor for use with an inner bearing ring having a cylindrical bore. The adaptor comprises a tubular portion having a cylindrical outer surface adapted to be received within the inner bearing ring cylindrical bore and a non-cylindrical inner surface a... | 01/30/1996 |
| 5397187 | Harrow plow and method A bearing assembly is disclosed for use with a disk harrow plow in which interior collars are provided to engage each other in a lap face relationship, and where the lap face is fed by an adjacent chamber with a lubricating medium.... | 03/14/1995 |
| 5178472 | Bearing for mounting on a multi-sided shaft A bearing has an inner ring coaxial to and rotatable relative to an outer ring. A central bore of the inner ring accommodates a multi-sided shaft in at least two positions that are angularly offset relative to each other. Each position provides a differen... | 01/12/1993 |
| 4993850 | Disc harrow support assembly A support for a disc narrow assembly wherein a standard ball bearing unit is utilized and is encased in a housing formed of opposing mirror image bushings which are further enclosed by a pair of opposing mirror image flange members that are releasably aff... | 02/19/1991 |
| 4392695 | Bearing A bearing is described for use with a disc harrow including means for preventing dust from entering the interior thereof. The bearing comprises inner and outer bearing rings having a plurality of spaced apart ball bearings mounted therebetween. First and ... | 07/12/1983 |
| 3999814 | Bearing spool for a disc A bearing spool for a disc harrow including a frame means having at least a pair of spaced-apart bearing brackets extending therefrom. A bearing is mounted in each of the bearing brackets and has the bearing spool rotatably mounted therein. A section shaf... | 12/28/1976 |
| 3980355 | Bearing boxes for rotary shafts subjected to twisting moments An improvement in bearing boxes adapted to mount on rotary shafts objects subjected to twisting moments. Such objects are conventionally mounted by means of a pair of oppositely disposed conical roller bearings, and the improvement comprises a third conic... | 09/14/1976 |
