Issued Patents All Time
Showing 51–72 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830438 | Freight brake emergency valve | Edward W. Gaughan | 1989-05-16 |
| 4830148 | Truss-type brake beam for railway vehicle truck-mounted brake assembly | Earl E. Allan, Allen W. Kyllonen | 1989-05-16 |
| 4793446 | Single-cylinder, truck-mounted brake assembly | William K. Mong, Allen W. Kyllonen, Mark S. Krampitz | 1988-12-27 |
| 4786117 | Variable load valve | — | 1988-11-22 |
| 4776642 | Freight brake control valve device having improved quick service function | Edward W. Gaughan, Theodore B. Hill | 1988-10-11 |
| 4770472 | Freight brake control valve having an emergency piston slide valve arranged to provide an accelerated brake application function | Charles Weber | 1988-09-13 |
| 4690463 | Freight brake control valve having an emergency piston slide valve arranged to provide an accelerated brake application function | — | 1987-09-01 |
| 4666166 | Clamping arrangement for diaphragm-type piston | Michael T. Zoric, Allen W. Kyllonen | 1987-05-19 |
| 4635242 | Underwater signalling device | — | 1987-01-06 |
| 4613016 | Single-cylinder truck-mounted brake assembly | William K. Mong, Allen W. Kyllonen, Mark S. Krampitz | 1986-09-23 |
| 4557181 | Brake cylinder/air reservoir device | Willard P. Spalding, Allen W. Kyllonen | 1985-12-10 |
| 4498712 | Empty/load brake control arrangement | — | 1985-02-12 |
| 4471614 | Hydro-pneumatic actuator with automatic slack adjuster | — | 1984-09-18 |
| 4418799 | Combined air reservoir/brake cylinder device | Willard P. Spalding, Allen W. Kyllonen | 1983-12-06 |
| 4405182 | Control valve arrangement for combined brake cylinder and air reservoir device | — | 1983-09-20 |
| 4378950 | Inshot valve arrangement for railway brake control apparatus employing combined air reservoir/brake cylinder device | Robert J. Zahradnik | 1983-04-05 |
| RE31059 | Emergency portion for a brake control valve | — | 1982-10-19 |
| 4339155 | Control valve arrangement for combined brake and air reservoir device | — | 1982-07-13 |
| 4235477 | Variable load valve device | — | 1980-11-25 |
| 4225193 | Control valve arrangement for combined brake cylinder and reservoir | — | 1980-09-30 |
| RE30408 | Brake apparatus with a combined brake cylinder and reservoir | — | 1980-09-30 |
| 4188071 | Railway vehicle brake apparatus arranged to accommodate reduced emergency reservoir volume | — | 1980-02-12 |