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Norman M. Packard Patents |
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Inventor: Packard; Norman M.
Address: Des Plaines, IL
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 3980310 |
Ring manufacture, productive of face contact seal |
September 14, 1976 |
| Methods, apparatus, and improved structure having as their common basis the sequence of collapsing a piston ring in a fixture approximating engine bore diameter, and separately lapping a major portion of the ring side and a remaining locality --narrow in width, of band size and preferabl |
| 3971165 |
Ring manufacture, productive of face contact seal |
July 27, 1976 |
| Methods, apparatus, and improved structure having as their common basis the sequence of collapsing a piston ring in a fixture approximating engine bore diameter, and separately lapping a major portion of the ring side and a remaining locality -- narrow in width, of band size and preferab |
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