US3238566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for sealing in plastic forming machines
Assignee: Resistance Welder Corp
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Filing: 1964-09-28
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Granted: 1966-03-08
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Koehler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:06
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/0038; B29C51/00; B29C51/26; B29C51/30; B29C51/303
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A SEAL FOR SEALING A SPACE BETWEEN TWO MEMBERS HAVING A SHEET OF PLASTIC MATERIAL INTERPOSED THEREBETWEEN WHEN ONE OF SAID MEMBERS IS MOVED INTO ENGAGEMENT WITH THE SHEET; A CONTINUOUS, SEAL RECEIVING GROOVE AROUND THE OUTER EDGE OF ONE OF SAID MEMBERS; A CONTINUOUS, YIELDABLE SEALING MEMBER MOUNTED IN SAID GROOVE; SAID SEALING MEMBER BEING FORMED WITH AN UPWARDLY ANGLED FLAT SURFACE WHICH PROJECTS ABOVE THE UPPER EDGE OF SAID GROOVE, AND A CENTRALLY DISPOSED, CONTINUOUS PASSAGE PROVIDED IN ONE SIDE WALL OF SAID SEALING MEMBER.
Claim 2
Dependent Claim
87 words
A SEAL FOR SEALING A SPACE BETWEEN TWO MEMBERS HAVING A SHEET OF PLASTIC MATERIAL INTERPOSED THEREBETWEEN WHEN ONE OF SAID MEMBERS IS MOVED INTO ENGAGEMENT WITH THE SHEET; A CONTINUOUS, SEAL RECEIVING GROOVE AROUND THE OUTER EDGE OF ONE OF SAID MEMBERS; A CONTINUOUS, YIELDABLE SEALING MEMBER MOUNTED IN SAID GROOVE; SAID SEALING MEMBER BEING FORMED WITH AN UPWARDLY ANGLED FLAT SURFACE WHICH PROJECTS ABOVE THE UPPER EDGE OF SAID GROOVE, AND A CENTRALLY DISPOSED, CONTINUOUS PASSAGE PROVIDED IN ONE SIDE WALL OF SAID SEALING MEMBER.
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |