US3171375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for the manufacture of beams and the like
Assignee: Pullmax AB
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Filing: 1962-03-19
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Granted: 1965-03-02
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 Linnander Carl Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:41
CPC Classifications
B; B21; B21D; B21D47/00; B21D47/01; B21D47/04; B23; B23K; B23K31/00; B23K31/02; B23K31/022; B23K37/00; B23K37/04; B23K9/00; B23K9/02; B23K9/025; B23K9/0256; B23K2101/00; B23K2101/28; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49895; Y10T29/53; Y10T29/53313; Y10T29/53348
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A MACHINE FOR THE MANUFACTURING OF BEAMS COMPOSED OF WEB AND FLANGE ELEMENTS ADAPTED TO BE WELDED TOGETHER WHILE BEING ADVANCED ALONG A PATH OF TRAVEL, MEANS FOR FEEDING AND POSITIONING SAID ELEMENTS COMPRISING AT LEAST TWO SETS OF GUIDE ROLLERS SPACED APART ALONG SAID PATH OF TRAVEL AND ARRANGED TO HOLD SAID ELEMENTS IN PROPER MUTUAL POSITIONS, EACH SET OF GUIDE ROLLERS COMPRISING A MOVABLE PRESSURE ROLLER AND A STATIONARY BACKING ROLLER DISPOSED ON OPPOSITE SIDES OF THE PATH OF TRAVEL, SEPERATE AND MUTUALLY INDEPENDENT FLUID OPERATED MEANS FOR EXERTING A YIELDING PRESSURE ON THE SEVERAL MOVABLE ROLLERS TO KEEP THE WEB AND FLANGE ELEMENTS FIRMLY PRESSED AGAINST THE STATIONARY BACKING ROLLERS, AND MEANS FOR DRIVING AT LEAST ONE OF SAID ROLLERS TO ADVANCE SAID ELEMENTS ALONG SAID PATH OF TRAVEL.
Claim 2
Dependent Claim
133 words
IN A MACHINE FOR THE MANUFACTURING OF BEAMS COMPOSED OF WEB AND FLANGE ELEMENTS ADAPTED TO BE WELDED TOGETHER WHILE BEING ADVANCED ALONG A PATH OF TRAVEL, MEANS FOR FEEDING AND POSITIONING SAID ELEMENTS COMPRISING AT LEAST TWO SETS OF GUIDE ROLLERS SPACED APART ALONG SAID PATH OF TRAVEL AND ARRANGED TO HOLD SAID ELEMENTS IN PROPER MUTUAL POSITIONS, EACH SET OF GUIDE ROLLERS COMPRISING A MOVABLE PRESSURE ROLLER AND A STATIONARY BACKING ROLLER DISPOSED ON OPPOSITE SIDES OF THE PATH OF TRAVEL, SEPERATE AND MUTUALLY INDEPENDENT FLUID OPERATED MEANS FOR EXERTING A YIELDING PRESSURE ON THE SEVERAL MOVABLE ROLLERS TO KEEP THE WEB AND FLANGE ELEMENTS FIRMLY PRESSED AGAINST THE STATIONARY BACKING ROLLERS, AND MEANS FOR DRIVING AT LEAST ONE OF SAID ROLLERS TO ADVANCE SAID ELEMENTS ALONG SAID PATH OF TRAVEL.
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |