Bridigum; Robert J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Bridigum; Robert J..The latest application filed is for "adjustable variable load control valve device".
- Bridigum; Robert J. - Plum Borough PA
- Bridigum; Robert J. - Pittsburgh PA
| Patent | Date |
|---|---|
| Adjustable variable load control valve device Grant 4,453,779 - Bridigum June 12, 1 | 1984-06-12 |
| Dynamic blending with a spring-applied fluid pressure released service brake including cojoint spring and fluid pressure emergency feature Grant 4,045,093 - Bridigum August 30, 1 | 1977-08-30 |
| Multiple filter apparatus Grant 3,923,479 - Glass , et al. December 2, 1 | 1975-12-02 |
| Vibration-absorbing support frame for railway vehicle motor-compressor unit Grant 3,918,850 - Bridigum November 11, 1 | 1975-11-11 |
| Multiple filter apparatus Grant 3,902,875 - Bridigum , et al. September 2, 1 | 1975-09-02 |
| Blending Valve Device For Combining Fluid Pressure And Dynamic Brakes Grant 3,814,483 - Coiner , et al. June 4, 1 | 1974-06-04 |
| Combined Air And Hydraulic Fluid Supply Apparatus And Control Therefor Grant 3,788,769 - Glass , et al. January 29, 1 | 1974-01-29 |
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