US3199174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of eliminating buckling deformation of beams
Assignee: BRODERNA HEDLUND AB
•
Filing: 1962-10-26
•
Granted: 1965-08-10
•
Expires: 1982-10-26
Abstract
No abstract record available.
Inventors
- 👤 Nilsson Bengt Erik
- 👤 Arvidsson Erik David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:06
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/0026; E; E04; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/06; E04C2003/0404; E04C2003/0408; E04C2003/0413; E04C2003/0426; E04C2003/0434; E04C2003/0443; E04C2003/0452; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49618
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A METHOD OF MANUFACTURING BEAMS, COMPRISING THE STEPS OF FEEDING A RELATIVELY THIN AND BROAD WEB MATERIAL OF SHEET METAL SUCH AS STEEL AND METALLIC FLANGE STRIPS THROUGH A WELDING MACHINE PAST STATIONARY WELDING DEVICES THEREIN WHILE GUIDING THE FLANGE STRIPS IN ENGAGEMENT WITH THE LONGITUDINAL EDGES OF SAID WEB MATERIAL AND WELDING SAID FLANGE STRIPS TO SAID LONGITUDINAL EDGES BY SAID WELDING DEVICES, AND SUPPLYING HEAT TO PORTIONS OF THE WEB MATERIAL LOCATED BETWEEN SAID WELDING DEVICES AND SPACED FROM THE POINTS OF THE SAID EDGES IN WHICH WELDING IS TAKING PLACE, SAID HEAT BEING SUPPLIED IN A QUANTITY SUFFICIENT TO PREVENT BUCKLING OF SAID WEB MATERIAL.
Claim 2
Independent Claim
108 words
A METHOD OF MANUFACTURING BEAMS, COMPRISING THE STEPS OF FEEDING A RELATIVELY THIN AND BROAD WEB MATERIAL OF SHEET METAL SUCH AS STEEL AND METALLIC FLANGE STRIPS THROUGH A WELDING MACHINE PAST STATIONARY WELDING DEVICES THEREIN WHILE GUIDING THE FLANGE STRIPS IN ENGAGEMENT WITH THE LONGITUDINAL EDGES OF SAID WEB MATERIAL AND WELDING SAID FLANGE STRIPS TO SAID LONGITUDINAL EDGES BY SAID WELDING DEVICES, AND SUPPLYING HEAT TO PORTIONS OF THE WEB MATERIAL LOCATED BETWEEN SAID WELDING DEVICES AND SPACED FROM THE POINTS OF THE SAID EDGES IN WHICH WELDING IS TAKING PLACE, SAID HEAT BEING SUPPLIED IN A QUANTITY SUFFICIENT TO PREVENT BUCKLING OF SAID WEB MATERIAL.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |