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Patent applications and USPTO patent grants for Fields; Larry D..The latest application filed is for "variable speed drive for screw conveyor".
Patent | Date |
---|---|
Variable speed drive for screw conveyor Grant 5,167,320 - Lucich , et al. December 1, 1 | 1992-12-01 |
Filter screen device Grant 4,495,072 - Fields January 22, 1 | 1985-01-22 |
Reversible quick exhaust valve Grant 4,457,330 - Fields July 3, 1 | 1984-07-03 |
Liquid filtration system Grant 4,458,059 - Fields * July 3, 1 | 1984-07-03 |
Dashpot mechanism for self-closing plumbing valves Grant 4,165,857 - Morris , et al. August 28, 1 | 1979-08-28 |
Dashpot mechanism for self-closing plumbing valves Grant 4,093,177 - Morris , et al. June 6, 1 | 1978-06-06 |
Ball joint relievable hanger for towels and the like Grant 3,957,241 - Morris , et al. May 18, 1 | 1976-05-18 |
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