Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10065617 | Apparatus and method for isolating an intact portion of a service braking circuit from a failed service brake wheel end | Fred W. Hoffman, Ronald S. Plantan | 2018-09-04 |
| 9758140 | System and method for controlling pneumatic control signal | Travis G. Ramler | 2017-09-12 |
| 9381899 | Apparatus and method for isolating an intact portion of a service braking circuit from a failed service brake wheel end | Fred W. Hoffman, Ronald S. Plantan | 2016-07-05 |
| 9180854 | Dual purpose dryers for high flow | Fred W. Hoffman, John V. Ripley, Robert Nechvatal | 2015-11-10 |
| 9156458 | Braking system with non-spring parking brake actuator | Ronald S. Plantan, Fred W. Hoffman | 2015-10-13 |
| 9056537 | Method to reduce load transfer between axles of a common set during braking | — | 2015-06-16 |
| 9002610 | Relay valve control arrangement to provide variable response timing on full applications | James M. Hamar, Travis G. Ramler, John V. Ripley | 2015-04-07 |
| 8909449 | System, controller and method for preventing vehicle rollaway | Ronald S. Plantan | 2014-12-09 |
| 8840197 | Hand control brake valve | Thanh Ho | 2014-09-23 |
| 8820857 | Apparatus and method for preventing parking brake-caused vehicle disabling | James E. Szudy, John G. Nosse | 2014-09-02 |
| 8783791 | Dual circuit pneumatic foot valve with electronically controlled proportional modulator (ECPM) and operator input sensing | Mark A. Bennett | 2014-07-22 |
| 8276993 | Park system with high/low trip pressure for added failure protection with work brake application | John V. Ripley | 2012-10-02 |
| 8260520 | Heavy vehicle trailer ABS module | — | 2012-09-04 |
| 8079649 | Vehicle condition dependent supplemental parking brake system with protection against an unwanted application | — | 2011-12-20 |
| 7976040 | Axle air dump for multiple axle vehicles | Ron R. Stahl, John G. Nosse, John V. Ripley | 2011-07-12 |
| 7938411 | Axle air dump for multiple axle vehicles | Ron R. Stahl, John G. Nosse, John V. Ripley | 2011-05-10 |
| 7744168 | Brake control system | Ron R. Stahl, Kenneth A. Grolle, William P. Amato | 2010-06-29 |
| 7520572 | Use of ECU to control brake valve actuator | Cem Hatipoglu, Mark A. Bennett | 2009-04-21 |
| 7117896 | Air system module including reservoir and mounting structure | Curtis Samuel Snyder, Gregory R. Ashley, Fred W. Hoffman | 2006-10-10 |
| 7077481 | Spring brake modulating relay valve | Andrew Marsh, John Kemer, Dave Knight, Richard T. Ross | 2006-07-18 |
| 6917870 | Interrupt for automatic traction control valve from park brake circuit | David W. Howell, William P. Amato | 2005-07-12 |
| 6802573 | Parking control circuit | David John Knight | 2004-10-12 |
| 6769744 | Spring brake modulating relay valve | Andrew Marsh, John Kemer, Dave Knight, Richard T. Ross | 2004-08-03 |
| 6758298 | School bus door/service brake interlock system | Michael D. Grandstaff | 2004-07-06 |
| 6743277 | Service reservoir purge of air dryers in pump-off mode | David J. Goodell | 2004-06-01 |