Smirl; Richard L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Smirl; Richard L..The latest application filed is for "electro-hydraulic control system for a dual-pass continuously variable transmission".
- Smirl; Richard L. - Arlington Heights IL
- Smirl; Richard L. - La Grange Park IL
| Patent | Date |
|---|---|
| Electro-hydraulic control system for a dual-pass continuously variable transmission Grant 5,031,481 - Algrain , et al. July 16, 1 | 1991-07-16 |
| Dual range infinitely variable transmission Grant 4,990,127 - Roberts, deceased , et al. February 5, 1 | 1991-02-05 |
| Method and apparatus for controlling wheel slip in a full-time four wheel drive vehicle Grant 4,848,508 - Smirl , et al. July 18, 1 | 1989-07-18 |
| Variable pulley transmission Grant 4,436,193 - Smirl March 13, 1 | 1984-03-13 |
| Variable pulley transmission Grant 4,433,594 - Smirl February 28, 1 | 1984-02-28 |
| Automotive accessory drive Grant 4,265,135 - Smirl May 5, 1 | 1981-05-05 |
| Variable pulley transmission Grant 4,241,618 - Smirl December 30, 1 | 1980-12-30 |
| Variable pulley transmission Grant 4,228,691 - Smirl October 21, 1 | 1980-10-21 |
| Automotive Transmission Grant 3,802,294 - Smirl April 9, 1 | 1974-04-09 |
| Rotor For Clutch Or Brake Grant 3,773,153 - Smirl November 20, 1 | 1973-11-20 |
| Constant Speed Centrifugal Clutch Grant 3,747,731 - Smirl July 24, 1 | 1973-07-24 |
| Plural Output Path Torque Transmitting Mechanism--hydraulic Clutch For Four Wheel Drive Vehicles Grant 3,627,072 - Smirl December 14, 1 | 1971-12-14 |
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