Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6223647 | Brake actuator and method of forming same | James D. Goates, Duane L. Angeli, Greg W. Jensen, Graydon J. Choinski | 2001-05-01 |
| 6079312 | Combined valving system for spring brake actuator | — | 2000-06-27 |
| 5992297 | Easy fit diaphragm | Michael M. Holm | 1999-11-30 |
| 5825287 | Vehicle brake monitoring system | Richard F. Zarybnicky, Sr., Alan C. Lesesky | 1998-10-20 |
| 5787794 | Mounting bolt for brake actuator | Duane J. Demus | 1998-08-04 |
| 5775202 | Deformed clamp band made from continuous roll | Graydon J. Choinski | 1998-07-07 |
| 5765466 | Brake actuator with self-centering diaphram | Michael M. Holm | 1998-06-16 |
| 5671654 | Sealed spring brake actuator | — | 1997-09-30 |
| 5640894 | Method of assembly for tamper-resistant brake actuator | Richard F. Zarybnicky, Sr. | 1997-06-24 |
| 5636562 | Spring brake actuator with release tool requiring limited axial space | Graydon J. Choinski, Richard F. Zarybnicky, Sr. | 1997-06-10 |
| 5632192 | Spring brake actuator with indicator for fully released condition | Emmett S. Davis | 1997-05-27 |
| 5623863 | Dual-thread release bolt for spring brake actuator | — | 1997-04-29 |
| 5588348 | Brake actuator with centering dome in service chamber | Henry Dangson | 1996-12-31 |
| 5507217 | Perforate diaphragm alignment system for spring brake actuators | — | 1996-04-16 |
| 5497742 | Drive through crankshaft | — | 1996-03-12 |
| 5445440 | Full-function valve for heavy duty semi-trailer brake systems | — | 1995-08-29 |
| 5331929 | Cylinder head for internal combustion engine and a process of operating same | — | 1994-07-26 |
| 4261624 | Brake system | — | 1981-04-14 |
| 4230373 | Brake system | — | 1980-10-28 |