Patent US3212375A successfully refreshed from Google Patents.
US3212375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for working a joint line between a pair of intersecting pipes
Assignee: Kawasaki Heavy Industries Ltd
•
Filing: 1963-09-13
•
Granted: 1965-10-19
•
Expires: 1983-09-13
Abstract
No abstract record available.
Inventors
- 👤 Suizu Kanichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:24
CPC Classifications
B; B23; B23Q; B23Q27/00; B23D; B23D21/00; B23D21/02; B23K; B23K7/00; B23K7/005; B23K7/006; B23K7/007; Y; Y10; Y10T; Y10T82/00; Y10T82/16; Y10T82/16016; Y10T82/16032; Y10T82/16426; Y10T82/16967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
METHOD OF WORKING A JOINT LINE BETWEEN FIRST AND SECOND PIPES WHICH ARE TO BE JOINED TOGETHER AT AN ANGLE ALONG SAID JOINT LINE, COMPRISING THE STEPS OF: REPRESENTING SAID JOINT LINE BY A FUNCTION Z=F (0.*) OF THE CIRCULAR CYLINDRICAL COORDINATES UTILIZING THE AXES OF SAID FIRST AND SECOND PIPES AS COORDINATE AXES, 0 AND * BEING ANGULAR VARIABLES AND HAVING A RELATIONSHIP REPRESENTED BY AN EQUATION
Claim 2
Dependent Claim
68 words
METHOD OF WORKING A JOINT LINE BETWEEN FIRST AND SECOND PIPES WHICH ARE TO BE JOINED TOGETHER AT AN ANGLE ALONG SAID JOINT LINE, COMPRISING THE STEPS OF: REPRESENTING SAID JOINT LINE BY A FUNCTION Z=F (0.*) OF THE CIRCULAR CYLINDRICAL COORDINATES UTILIZING THE AXES OF SAID FIRST AND SECOND PIPES AS COORDINATE AXES, 0 AND * BEING ANGULAR VARIABLES AND HAVING A RELATIONSHIP REPRESENTED BY AN EQUATION
References Cited (Backward Citations)
US3073195A
Cited
US3120143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |