US3291670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making plastic pipe fittings
Assignee: Atlantic Research Corp
•
Filing: 1965-12-02
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Granted: 1966-12-13
•
Expires: 1985-12-02
Abstract
No abstract record available.
Inventors
- 👤 Martin A Usab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:30
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/26; F16L47/32; B; B29; B29C; B29C49/00; B29C49/02; B29C49/04; B29C49/0411; B29C49/04114; B29D; B29D23/00; B29D23/001; B29D23/003; F16L41/00; F16L41/02; F16L41/03; B29C49/20; B29C2049/2021; B29C2049/2069; B29C2791/00; B29C2791/001; B29L; B29L2031/00; B29L2031/24; Y; Y10; Y10S; Y10S285/00; Y10S285/915
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
197 words
A METHOD OF MAKING PLASTIC PIPE FITTINGS FOR PIPING SYSTEMS REQUIRING FLUID-TIGHT JOINTS COMPRESING THE STEPS OF A. PROVIDING A FEMALE MOLD HAVING A CAVITY WITH THE SHAPE OF THE FITTING DESIRED, SAID CAVITY HAVING A MACHINED FINISH, B. MOLDING WITHIN SAID MOLD A HOLLOW PLASTIC BODY HAVING AT LEAST ONE BRANCH, FORMING SAID BODY WITH AN EXTERNAL SURFACE ADJACENT THE END OF SAID BRANCH WITH A FINISH SUFFICIENTLY SMOOTH TO PERMIT FLUID-TIGHT SEALING ENGAGEMENT THEREWITH AND HAVING PRECISE, ACCURATELY CONTROLLED DIMENSIONS, C. FORMING A PLASTIC END CONNECTOR WITH A FIRST PORTION HAVING AN INTERNAL SURFACE COMPLEMENTARY IN SIZE, SHAPE AND FINISH TO THE EXTERNAL SURFACE OF THE END OF SAID BRANCH AND WITH A SECOND PORTION PROVIDING A PIPE-RECEIVING SOCKET HAVING AN INTERNAL SURFACE WITH A FINISH SUFFICIENTLY SMOOTH TO PERMIT FLUID-TIGHT SEALING ENGAGEMENT THEREWITH AND HAVING PRECISE ACCURATELY CONTROLLED DIMENSIONS, D. PLACING SAID FIRST PORTION OF SAID END CONNECTOR OVER THE END OF SAID BRANCH SUCH THAT THE INTERNAL SURFACE OF SAID FIRST PORTION MATES WITH THE EXTERNAL SURFACE OF SAID BRANCH AND SAID SECOND PORTION OF SAID END CONNECTOR EXTENDS BEYOND SAID BRANCH, AND E. FLUID-TIGHT SEALINGLY JOINING SAID FIRST PORTION TO SAID BRANCH.
Claim 2
Independent Claim
197 words
A METHOD OF MAKING PLASTIC PIPE FITTINGS FOR PIPING SYSTEMS REQUIRING FLUID-TIGHT JOINTS COMPRESING THE STEPS OF A. PROVIDING A FEMALE MOLD HAVING A CAVITY WITH THE SHAPE OF THE FITTING DESIRED, SAID CAVITY HAVING A MACHINED FINISH, B. MOLDING WITHIN SAID MOLD A HOLLOW PLASTIC BODY HAVING AT LEAST ONE BRANCH, FORMING SAID BODY WITH AN EXTERNAL SURFACE ADJACENT THE END OF SAID BRANCH WITH A FINISH SUFFICIENTLY SMOOTH TO PERMIT FLUID-TIGHT SEALING ENGAGEMENT THEREWITH AND HAVING PRECISE, ACCURATELY CONTROLLED DIMENSIONS, C. FORMING A PLASTIC END CONNECTOR WITH A FIRST PORTION HAVING AN INTERNAL SURFACE COMPLEMENTARY IN SIZE, SHAPE AND FINISH TO THE EXTERNAL SURFACE OF THE END OF SAID BRANCH AND WITH A SECOND PORTION PROVIDING A PIPE-RECEIVING SOCKET HAVING AN INTERNAL SURFACE WITH A FINISH SUFFICIENTLY SMOOTH TO PERMIT FLUID-TIGHT SEALING ENGAGEMENT THEREWITH AND HAVING PRECISE ACCURATELY CONTROLLED DIMENSIONS, D. PLACING SAID FIRST PORTION OF SAID END CONNECTOR OVER THE END OF SAID BRANCH SUCH THAT THE INTERNAL SURFACE OF SAID FIRST PORTION MATES WITH THE EXTERNAL SURFACE OF SAID BRANCH AND SAID SECOND PORTION OF SAID END CONNECTOR EXTENDS BEYOND SAID BRANCH, AND E. FLUID-TIGHT SEALINGLY JOINING SAID FIRST PORTION TO SAID BRANCH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |