US3253121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding method
Assignee: Individual
•
Filing: 1965-07-06
•
Granted: 1966-05-24
•
Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Robert B Robbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:23
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
THE METHOD OF WELDING TOGETHER TWO METALLIC MEMBERS WITHOUT THE NECESSITY OF BEVELING OR OTHER EDGE PREPARATION WHICH COMPRISES ARRANGING SAID MEMBERS WITH A POSSIBLY IRREGULAR, GENERALLY HORIZONTAL WELDING SPACE OF NOT GREATER THAN APPROXIMATELY 1" BETWEEN THEM, PLACING A BACK-UP MEMBER BENEATH SAID WELDING SPACE, FILLING SAID WELDING SPACE BETWEEN SAID METALLIC MEMBERS AND ON TOP OF SAID BACK-UP MEMBER AT LEAST PARTIALLY FULL OF METALLIC PARTICLES HAVING THE SAME PRINCIPAL INGREDIENT AS SAID METALLIC MEMBERS, AND APPLYING TO SAID METALLIC PARTICLES AND THE PORTIONS OF SAID METALLIC MEMBERS ADJACENT SAID WELDING SPACE SUFFICIENT HEAT TO CAUSE FUSION OF AT LEAST A PORTION OF SAID METALLIC PARTICLES WITH SAID METALLIC MEMBERS, AND THEREBY SUBSTANTIALLY FILL SAID WELDING SPACE WITH METAL OF WHICH A SUBSTANTIAL FRACTION IS CONTRIBUTED BY FUSION OF SAID METALLIC PARTICLES.
Claim 2
Independent Claim
134 words
THE METHOD OF WELDING TOGETHER TWO METALLIC MEMBERS WITHOUT THE NECESSITY OF BEVELING OR OTHER EDGE PREPARATION WHICH COMPRISES ARRANGING SAID MEMBERS WITH A POSSIBLY IRREGULAR, GENERALLY HORIZONTAL WELDING SPACE OF NOT GREATER THAN APPROXIMATELY 1" BETWEEN THEM, PLACING A BACK-UP MEMBER BENEATH SAID WELDING SPACE, FILLING SAID WELDING SPACE BETWEEN SAID METALLIC MEMBERS AND ON TOP OF SAID BACK-UP MEMBER AT LEAST PARTIALLY FULL OF METALLIC PARTICLES HAVING THE SAME PRINCIPAL INGREDIENT AS SAID METALLIC MEMBERS, AND APPLYING TO SAID METALLIC PARTICLES AND THE PORTIONS OF SAID METALLIC MEMBERS ADJACENT SAID WELDING SPACE SUFFICIENT HEAT TO CAUSE FUSION OF AT LEAST A PORTION OF SAID METALLIC PARTICLES WITH SAID METALLIC MEMBERS, AND THEREBY SUBSTANTIALLY FILL SAID WELDING SPACE WITH METAL OF WHICH A SUBSTANTIAL FRACTION IS CONTRIBUTED BY FUSION OF SAID METALLIC PARTICLES.
References Cited (Backward Citations)
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Cited
US1323556A
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US1674109A
Cited
US1872287A
Cited
US2122994A
Cited
US2331689A
Cited
US2927990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |