Patent US3238347A successfully refreshed from Google Patents.
US3238347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding apparatus
Assignee: ADVANCED ROBOTICS Corp
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Filing: 1964-10-26
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Granted: 1966-03-01
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Expires: 1984-10-26
Abstract
No abstract record available.
Inventors
- 👤 Roderick G Rohrberg
- 👤 Armitage Earl Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:09
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/028; B23K9/0282; B23K9/0286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN APPARATUS FOR PROGRESSIVELY APPLYING HEAT FOR WELDING A GENERALLY CYLINDRICAL WORKPIECE PORTION ALONG AN ARCUATE WELDING PATH: CHAMBER MEANS INCLUDING A SUBSTANTALLY CYLINDRICAL CHAMBER FOR SUPPORTING SAID WORKPIECE SUBSTANTIALLY CONCENTRICALLY THEREWITH, AN ELECTRODE FOR APPLYING SAID HEAT, MEANS MOUNTING SAID ELECTRODE IN SAID CHAMBER FOR ARCUATE MOVEMENT OF SAID ELECTRODE RELATIVE TO SAID CHAMBER AND IN SPACED RELATIONSHIP WITH SAID WORKPIECE PORTION, SAID ELECTRODE MOUNTING MEANS INCLUDING ADJUSTABLY MOVABLE MEANS FOR VARYING SAID SPACE BETWEEN SAID ELECTRODE AND SAID WORKPIECE PORTION, AND SAID CHAMBER HAVING ACCESS OPENING MEANS FOR EXTERNAL ACCESS AS REQUIRED TO MOVE SAID ADJUSTABLY MOVABLE MEANS AND TO MEASURE SAID SPACE WHILE SAID WORKPIECE IS SUPPORTED WITHIN SAID CHAMBER.
Claim 2
Dependent Claim
113 words
IN APPARATUS FOR PROGRESSIVELY APPLYING HEAT FOR WELDING A GENERALLY CYLINDRICAL WORKPIECE PORTION ALONG AN ARCUATE WELDING PATH: CHAMBER MEANS INCLUDING A SUBSTANTALLY CYLINDRICAL CHAMBER FOR SUPPORTING SAID WORKPIECE SUBSTANTIALLY CONCENTRICALLY THEREWITH, AN ELECTRODE FOR APPLYING SAID HEAT, MEANS MOUNTING SAID ELECTRODE IN SAID CHAMBER FOR ARCUATE MOVEMENT OF SAID ELECTRODE RELATIVE TO SAID CHAMBER AND IN SPACED RELATIONSHIP WITH SAID WORKPIECE PORTION, SAID ELECTRODE MOUNTING MEANS INCLUDING ADJUSTABLY MOVABLE MEANS FOR VARYING SAID SPACE BETWEEN SAID ELECTRODE AND SAID WORKPIECE PORTION, AND SAID CHAMBER HAVING ACCESS OPENING MEANS FOR EXTERNAL ACCESS AS REQUIRED TO MOVE SAID ADJUSTABLY MOVABLE MEANS AND TO MEASURE SAID SPACE WHILE SAID WORKPIECE IS SUPPORTED WITHIN SAID CHAMBER.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |