Patent US3209118A successfully refreshed from Google Patents.
US3209118A
Expired / Lapsed
US
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Welding apparatus
Assignee: Individual
•
Filing: 1964-09-14
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Granted: 1965-09-28
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Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 Rex H Dyer
- 👤 Lauren W Burnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:30
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/08; B23K11/093; B23K11/0935; B23K9/00; B23K9/02; B23K9/028; B23K9/0282; B23K9/0286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
THE METHOD OF WELDING METAL PIPE SECTIONS TOGETHER ALONG ADJACENT END EDGES THEREOF IN CONTACT WITH WELDING MATERIAL COMPRISING: (A) POSITIONING SAID SECTIONS IN ALIGNED ABUTTING RELATION IN CONTACT WITH SAID WELDING MATERIAL, (B) URGING A WELDING MEMBER INTO ELECTRICAL CONTACT WITH SAID WELDING MATERIAL TO FORM A WELD AREA, (C) URGING A CIRCULAR ELECTRICAL CONTACT MEMBER INTO CONTACT WITH AT LEAST ONE OF SAID SECTIONS ADJACENT SAID WELD AREA TO FORM A CONTACT AREA, (D) IMPRESSING ELECTRIC ENERGY BETWEEN SAID WELDING MEMBER AND SAID CONTACT MEMBER FOR HEATING SAID WELDING MATERIAL, AND (E) MOVING SAID WELDING MEMBER ALONG SAID WELDING MATERIAL AND SIMULTANEOUSLY MOVINNG SAID CONTACT MEMBER WITH RESPECT TO SAID PIPE SECTIONS TO CAUSE SAID WELD AREA AND CONTACT AREA TO PROGRES ADJACENT EACH OTHER IN A CLOSED CURVED PATH DEFINED BY SAID END EDGES, SAID MOVEMENT OF SAID CONTACT MEMBER BEING SUBSTANTIALLY TRANSVERSELY OF SAID PIPE SECTIONS WITH SUBSTANTIALLY NO ROTATION WITH RESPECT TO SAID SECTIONS.
Claim 2
Independent Claim
159 words
THE METHOD OF WELDING METAL PIPE SECTIONS TOGETHER ALONG ADJACENT END EDGES THEREOF IN CONTACT WITH WELDING MATERIAL COMPRISING: (A) POSITIONING SAID SECTIONS IN ALIGNED ABUTTING RELATION IN CONTACT WITH SAID WELDING MATERIAL, (B) URGING A WELDING MEMBER INTO ELECTRICAL CONTACT WITH SAID WELDING MATERIAL TO FORM A WELD AREA, (C) URGING A CIRCULAR ELECTRICAL CONTACT MEMBER INTO CONTACT WITH AT LEAST ONE OF SAID SECTIONS ADJACENT SAID WELD AREA TO FORM A CONTACT AREA, (D) IMPRESSING ELECTRIC ENERGY BETWEEN SAID WELDING MEMBER AND SAID CONTACT MEMBER FOR HEATING SAID WELDING MATERIAL, AND (E) MOVING SAID WELDING MEMBER ALONG SAID WELDING MATERIAL AND SIMULTANEOUSLY MOVINNG SAID CONTACT MEMBER WITH RESPECT TO SAID PIPE SECTIONS TO CAUSE SAID WELD AREA AND CONTACT AREA TO PROGRES ADJACENT EACH OTHER IN A CLOSED CURVED PATH DEFINED BY SAID END EDGES, SAID MOVEMENT OF SAID CONTACT MEMBER BEING SUBSTANTIALLY TRANSVERSELY OF SAID PIPE SECTIONS WITH SUBSTANTIALLY NO ROTATION WITH RESPECT TO SAID SECTIONS.
References Cited (Backward Citations)
US686558A
Cited
US2265943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |