US2967805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient sealing means and method of making same
Assignee: Individual
•
Filing: 1957-08-22
•
Granted: 1961-01-10
•
Expires: 1977-08-22
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Forestek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:59
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10S277/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A METHOD OF MAKING A HEAT RESISTANT O-RING FROM AN ANNULAR RESILIENT CORE THAT HAS THE PROPERTY OF EXPANDING WHEN TREATED WITH A VOLATILE SUBSTANCE, COMPRISING THE STEPS OF; EXPANDING THE RESILIENT CORE BY TREATING THE SAME WITH A VOLATILE SUBSTANCE; ELECTRODEPOSITING A METALLIC COATING THAT IS POROUS TO SAID VOLATILE SUBSTANCE ONTO SAID CORE MEMBER WHILE THE SAME IS IN SAID EXPANDED CONDITION; EFFECTUATING EVAPORATION OF SAID VOLATILE SUBSTANCE THROUGH SAID POROUS COATING, WHEREBY SAID CORE IS SHRUNK TO NORMAL SIZE.
Claim 2
Independent Claim
82 words
A METHOD OF MAKING A HEAT RESISTANT O-RING FROM AN ANNULAR RESILIENT CORE THAT HAS THE PROPERTY OF EXPANDING WHEN TREATED WITH A VOLATILE SUBSTANCE, COMPRISING THE STEPS OF; EXPANDING THE RESILIENT CORE BY TREATING THE SAME WITH A VOLATILE SUBSTANCE; ELECTRODEPOSITING A METALLIC COATING THAT IS POROUS TO SAID VOLATILE SUBSTANCE ONTO SAID CORE MEMBER WHILE THE SAME IS IN SAID EXPANDED CONDITION; EFFECTUATING EVAPORATION OF SAID VOLATILE SUBSTANCE THROUGH SAID POROUS COATING, WHEREBY SAID CORE IS SHRUNK TO NORMAL SIZE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |