Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5121787 | Evaporable foam pattern for casting a thermostat housing for a V-type marine engine | — | 1992-06-16 |
| 5119882 | Evaporable foam pattern for casting an engine block for a two-cycle engine having a direct charge system | — | 1992-06-09 |
| 5119778 | Tuned intake air system for a rotary engine | — | 1992-06-09 |
| 5111869 | Evaporable foam pattern for casting a cylinder block of a two-cycle engine | Benjamin L. Sheaffer | 1992-05-12 |
| 5088545 | Evaporable foam pattern for use in casting a metal engine block having a loop charge system | — | 1992-02-18 |
| 5035276 | Evaporable foam pattern assembly for casting a housing for a rotary engine | Benjamin L. Sheaffer | 1991-07-30 |
| 4987945 | Evaporable foam pattern assembly for casting a centrifugal pump housing | — | 1991-01-29 |
| 4915603 | Rotary engine cooling system | Benjamin L. Sheaffer | 1990-04-10 |
| 4911122 | Tuned intake air inlet for a rotary engine | Benjamin L. Sheaffer | 1990-03-27 |
| 4911623 | Method and apparatus for lubricating a rotary engine | Benjamin L. Sheaffer | 1990-03-27 |
| 4883110 | Evaporable foam pattern for use in a casting process and having load transfer walls | Edward J. Morgan | 1989-11-28 |
| 4802447 | Foam pattern for engine cylinder block | — | 1989-02-07 |
| 4777997 | Evaporable foam pattern for cylinder block of a two-cycle engine | — | 1988-10-18 |
| 4771744 | Connecting rod with hydrodynamic bearing | — | 1988-09-20 |