Patent US3090996A successfully refreshed from Google Patents.
US3090996A
Expired / Lapsed
US
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Method and apparatus for forming seals
Assignee: Chicago Rawhide Manufacturing Co Inc
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Filing: 1959-12-17
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Granted: 1963-05-28
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Expires: 1979-12-17
Abstract
No abstract record available.
Inventors
- 👤 Jerry D Reichenbach
- 👤 Warren W Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:43
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/328; B; B29; B29C; B29C43/00; B29C43/02; B29C43/027; B29C43/18; B29C70/00; B29C70/68; B29C70/74; B29C70/76; B29D; B29D99/00; B29D99/0053; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/26; Y; Y10; Y10S; Y10S277/00; Y10S277/922; Y10S277/924; Y10S29/00; Y10S29/034; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
THE METHOD OF FORMING A SEAL HAVING A MOLDED RUBBER-LIKE SEALING PORTION BONDED TO A METALLIC CASING SAID METHOD COMPRISING ENCLOSING A MARGINAL PORTION OF SAID CASING WITHIN A SEALING PORTION SHAPING CURING MOLD BETWEEN FLAT CO-ACTING RADIALLY OFFSET PRESSURE APPLICATION AREA, COMPRESSING SAID MARGINAL PORTION BETWEEN SAID PRESSURE APPLICATION AREAS TO AN EXTENT THAT STOCK MATERIAL USED IN FORMING SAID SEALING PORTION WILL NOT FLOW BEYOND SAID AREAS ALONG SAID CASING OUT OF SAID MOLD, THE RELATIVE LOCATION OF SAID PRESSURE APPLICATION AREAS BEING CONTROLLED TO RANGE FROM OPPOSED MARGINAL OVERLAPPING ONLY TO AN EXTEND THAT CO-ACTING ADJACENT MARGINS LIE IN THE SAME PLANE TO OPPOSED MARGINAL RADIAL CLEARANCEE THEREGREATER THAN TO AFFORD ONLY SLIGHT RADIAL CLEARANCE THEREBETWEEN WHEREBY THE INNER EDGE PORTION OF SAID MARGINAL PORTION IN ITS FINAL POSITION IS RADIALLY OFFSET INTO A PLANE WHICH IS AT LEAST SUBSTANTIALLY PARALLEL TO THE REMAINDER OF SAID MARGINAL PORTION WITH THE THICKNESS OF THE METAL OF SAID CASING IN THE ZONE OF DISPLACEMENT BEING REDUCED.
Claim 2
Independent Claim
167 words
THE METHOD OF FORMING A SEAL HAVING A MOLDED RUBBER-LIKE SEALING PORTION BONDED TO A METALLIC CASING SAID METHOD COMPRISING ENCLOSING A MARGINAL PORTION OF SAID CASING WITHIN A SEALING PORTION SHAPING CURING MOLD BETWEEN FLAT CO-ACTING RADIALLY OFFSET PRESSURE APPLICATION AREA, COMPRESSING SAID MARGINAL PORTION BETWEEN SAID PRESSURE APPLICATION AREAS TO AN EXTENT THAT STOCK MATERIAL USED IN FORMING SAID SEALING PORTION WILL NOT FLOW BEYOND SAID AREAS ALONG SAID CASING OUT OF SAID MOLD, THE RELATIVE LOCATION OF SAID PRESSURE APPLICATION AREAS BEING CONTROLLED TO RANGE FROM OPPOSED MARGINAL OVERLAPPING ONLY TO AN EXTEND THAT CO-ACTING ADJACENT MARGINS LIE IN THE SAME PLANE TO OPPOSED MARGINAL RADIAL CLEARANCEE THEREGREATER THAN TO AFFORD ONLY SLIGHT RADIAL CLEARANCE THEREBETWEEN WHEREBY THE INNER EDGE PORTION OF SAID MARGINAL PORTION IN ITS FINAL POSITION IS RADIALLY OFFSET INTO A PLANE WHICH IS AT LEAST SUBSTANTIALLY PARALLEL TO THE REMAINDER OF SAID MARGINAL PORTION WITH THE THICKNESS OF THE METAL OF SAID CASING IN THE ZONE OF DISPLACEMENT BEING REDUCED.
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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |