Hay, II; Robert A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hay, II; Robert A..The latest application filed is for "floating ring labyrinth-type dynamic shaft seal and process for using same".
- Hay, II; Robert A. - Midland MI
| Patent | Date |
|---|---|
| Floating ring labyrinth-type dynamic shaft seal and process for using same Grant 5,046,718 - Hay, II September 10, 1 | 1991-09-10 |
| Centrifugal devolatilizer Grant 4,940,472 - Hay, II , et al. July 10, 1 | 1990-07-10 |
| Waste disposal apparatus Grant 4,647,213 - Hay, II March 3, 1 | 1987-03-03 |
| Apparatus for the flexibilization of synthetic resinous foam Grant 4,505,662 - Hay, II March 19, 1 | 1985-03-19 |
| Flat plate heat exchange apparatus Grant 4,423,767 - Hay, II , et al. January 3, 1 | 1984-01-03 |
| Heat sealing apparatus and method Grant 4,419,167 - Hay, II , et al. December 6, 1 | 1983-12-06 |
| Heating elements for thermoplastic lamination Grant 4,368,093 - Hay, II January 11, 1 | 1983-01-11 |
| Method for the lamination of foam including a reinforcing scrim Grant 4,363,684 - Hay, II December 14, 1 | 1982-12-14 |
| Foam welding apparatus Grant 4,175,998 - Hay, II , et al. November 27, 1 | 1979-11-27 |
| Bowless eyeglasses holder Grant 4,105,026 - Hay, II August 8, 1 | 1978-08-08 |
| Method of insulating a container Grant 4,075,264 - Hay, II February 21, 1 | 1978-02-21 |
| Heat sealing means Grant 4,062,718 - Hay, II December 13, 1 | 1977-12-13 |
| Laminate preparation and application thereof Grant 4,049,852 - Smith, Jr. , et al. September 20, 1 | 1977-09-20 |
| Method and apparatus for construction Grant 3,923,573 - Hay, II December 2, 1 | 1975-12-02 |
| Fabrication Apparatus For Butt Joining Foam Plastic Billets Grant 3,879,254 - Hay, II April 22, 1 | 1975-04-22 |
| Laminate construction Grant 3,874,983 - Hay, II , et al. April 1, 1 | 1975-04-01 |
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