US3117904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for patching plastic pipe
Assignee: Individual
•
Filing: 1961-12-18
•
Granted: 1964-01-14
•
Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Douglas E Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:47
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/16; F16L55/168; F16L55/17; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6109
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A DEVICE FOR APPLYING A SPLIT CYLINDRICAL PATCHING MEMBER TO A PLASTIC PIPE COMPRISING IN COMBINATION; (A) A PAIR OF CLAMP ARMS PIVOTALLY INTERCONNECTED, (B) TOGGLE MECHANISM ACTUABLE TO RELATIVELY SWING SAID ARMS TO AND FROM A CLAMPING POSITION, (C) A PAIR OF SEMI-CYLINDRICAL PATCH ENGAGING JAWS PIVOTALLY CONNECTED TOGETHER ALONG AN EDGE OF EACH JAW AT A POINT REMOTE FROM THE FIRST MENTIONED PIVOTAL CONNECTION, (D) ONE OF SAID JAWS PIVOTALLY CONNECTED TO ONE OF SAID ARMS AND THE OTHER JAW PIVOTALLY CONNECTED TO THE OTHER OF SAID PAIR OF ARMS, AND (E) MEANS FOR HOLDING THE CYLINDRICAL PATCHING MEMBER WITHIN THE JAWS WHEN THE JAWS ARE OPEN AND WHICH RELEASES THE PATCHING MEMBER WHEN THEY ARE IN CLOSED POSITION; THE MAJOR PORTION OF THE OUTER SURFACE OF SAID PATCH BEING HELD CLEAR OF THE SURFACE OF SAID JAWS WHEN THE JAWS ARE OPEN, SAID JAWS COMING INTO CONTACT WITH THE ENTIRE OUTER SURFACE OF THE PATCH ONLY WHEN THEY ARE CLOSED.
Claim 2
Independent Claim
163 words
A DEVICE FOR APPLYING A SPLIT CYLINDRICAL PATCHING MEMBER TO A PLASTIC PIPE COMPRISING IN COMBINATION; (A) A PAIR OF CLAMP ARMS PIVOTALLY INTERCONNECTED, (B) TOGGLE MECHANISM ACTUABLE TO RELATIVELY SWING SAID ARMS TO AND FROM A CLAMPING POSITION, (C) A PAIR OF SEMI-CYLINDRICAL PATCH ENGAGING JAWS PIVOTALLY CONNECTED TOGETHER ALONG AN EDGE OF EACH JAW AT A POINT REMOTE FROM THE FIRST MENTIONED PIVOTAL CONNECTION, (D) ONE OF SAID JAWS PIVOTALLY CONNECTED TO ONE OF SAID ARMS AND THE OTHER JAW PIVOTALLY CONNECTED TO THE OTHER OF SAID PAIR OF ARMS, AND (E) MEANS FOR HOLDING THE CYLINDRICAL PATCHING MEMBER WITHIN THE JAWS WHEN THE JAWS ARE OPEN AND WHICH RELEASES THE PATCHING MEMBER WHEN THEY ARE IN CLOSED POSITION; THE MAJOR PORTION OF THE OUTER SURFACE OF SAID PATCH BEING HELD CLEAR OF THE SURFACE OF SAID JAWS WHEN THE JAWS ARE OPEN, SAID JAWS COMING INTO CONTACT WITH THE ENTIRE OUTER SURFACE OF THE PATCH ONLY WHEN THEY ARE CLOSED.
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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |