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US3090262A
Expired / Lapsed
US
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Welding apparatus
Assignee: Engelhard Industries of Canada Ltd
•
Filing: 1958-01-21
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Granted: 1963-05-21
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Expires: 1978-01-21
Abstract
No abstract record available.
Inventors
- 👤 Ralph T Williams
- 👤 Douglas W Eley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:52
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/002; B23K11/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
AN APPARATUS FOR WELDING STRIPS OF WOVEN METAL GAUZE INCLUDING WIRE OF A PREDETERMINED THICKNESS COMPRISING A HAMMER HAVING OPPOSED BLADE OF HARDENED METAL PROVIDING AN EXTENDED BUT NARROW WELDING ZONE THEREBETWEEN, ONE OF SAID BLADES BEING IMMOVABLE AND THE OTHER BLADE RECIPROCATABLE, AND SPACED APART GUIDE MEMBERS WITH THE RECIPROCATABLE BLADE MOUNTED THEREBETWEEN, SAID BLADES WHEN CLOSED HAVING A SMALL CLEARANCE APPRECIABLY LESS THAN TWICE THE DIAMETER OF THE WIRE IN SAID GAUZE AND APPROXIMATING THE DIAMETER OF SAID WIRE, MEANS FOR FEEDING THE GAUZE THROUGH SAID WELDING ZONE BETWEEN THE BLADES UNDER TENSION, MEANS FOR HEATING SAID GUAZE TO WELDING TEMPERATURE IMMEDIATELY PRIOR TO PASSING IT BETWEEN THE BLADES, AND MEANS FOR RECIPROCATING THE RECIPROCATABLE BLADE AT A RATE OF 3500-9000 STROKES PER MINUTE THEREBY RAPIDLY HAMMERING THE WOVEN GAUZE OVER A NARROW AREA EXTENDING TRANSVERSE TO THE DIRECTION OF MOVEMENT OF THE GAUZE AND AVOIDING EXCESSIVE CONDUCTION HEAT LOSS FROM THE GAUZE TO THE BLADES TO EFFECT STRONG, UNIFORM WELDS OF THE GAUZE WIRES AT THE INTERSECTIONS THEREOF.
Claim 2
Independent Claim
171 words
AN APPARATUS FOR WELDING STRIPS OF WOVEN METAL GAUZE INCLUDING WIRE OF A PREDETERMINED THICKNESS COMPRISING A HAMMER HAVING OPPOSED BLADE OF HARDENED METAL PROVIDING AN EXTENDED BUT NARROW WELDING ZONE THEREBETWEEN, ONE OF SAID BLADES BEING IMMOVABLE AND THE OTHER BLADE RECIPROCATABLE, AND SPACED APART GUIDE MEMBERS WITH THE RECIPROCATABLE BLADE MOUNTED THEREBETWEEN, SAID BLADES WHEN CLOSED HAVING A SMALL CLEARANCE APPRECIABLY LESS THAN TWICE THE DIAMETER OF THE WIRE IN SAID GAUZE AND APPROXIMATING THE DIAMETER OF SAID WIRE, MEANS FOR FEEDING THE GAUZE THROUGH SAID WELDING ZONE BETWEEN THE BLADES UNDER TENSION, MEANS FOR HEATING SAID GUAZE TO WELDING TEMPERATURE IMMEDIATELY PRIOR TO PASSING IT BETWEEN THE BLADES, AND MEANS FOR RECIPROCATING THE RECIPROCATABLE BLADE AT A RATE OF 3500-9000 STROKES PER MINUTE THEREBY RAPIDLY HAMMERING THE WOVEN GAUZE OVER A NARROW AREA EXTENDING TRANSVERSE TO THE DIRECTION OF MOVEMENT OF THE GAUZE AND AVOIDING EXCESSIVE CONDUCTION HEAT LOSS FROM THE GAUZE TO THE BLADES TO EFFECT STRONG, UNIFORM WELDS OF THE GAUZE WIRES AT THE INTERSECTIONS THEREOF.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |