Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4643047 | Speed reducing gearing mechanism employing trochoidally formed gear surfaces for rolling torque transmission | James E. Shaffer | 1987-02-17 |
| 4620457 | Nutating drive mechanisms having roller driving elements | James E. Shaffer | 1986-11-04 |
| 4620456 | Nutating drive mechanisms having spherical ball driving elements | James E. Shaffer | 1986-11-04 |
| 4604916 | Epicyclic transmission having cam driven roller retainer | — | 1986-08-12 |
| 4584904 | Epicyclic transmission having free rolling roller driving elements | James E. Shaffer | 1986-04-29 |
| 4554846 | Two-piece retainer for epicyclic transmissions | Thomas Lang, David E. Smith | 1985-11-26 |
| 4553451 | Pin controlled retainer for epicyclic transmission | Thomas Lang | 1985-11-19 |
| 4552037 | Retainer for epicyclic transmission | Thomas Lang | 1985-11-12 |
| 4446752 | Epicycloidal gears and gear tooth arrangement therefor | James E. Shaffer | 1984-05-08 |