Patent US2694852A successfully refreshed from Google Patents.
US2694852A
Expired / Lapsed
US
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Method of brazing and the product thereof
Assignee: Riley Power Inc
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Filing: 1951-01-13
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Granted: 1954-11-23
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Expires: 1971-01-13
Abstract
No abstract record available.
Inventors
- 👤 Wayne C Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:48
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/0008; B23K35/00; B23K35/001; B23K35/004; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12347; Y10T428/12444; Y10T428/12493; Y10T428/12535; Y10T428/12576; Y10T428/12771; Y10T428/12861; Y10T428/12896; Y10T428/12903; Y10T428/12917; Y10T428/12924; Y10T428/12986
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
126 words
A METHOD OF BRAZING A BODY OF TUNGSTEN CARBIDE TO A BODY OF STEEL COMPRISING THE STEPS OF FEEDING A SCREEN OF WOVEN COPPER WIRE OF CIRCULAR CROSS SECTION BETWEEN TWO PARALLEL ROLLS TO REDUCE THE THICKNESS OF THE SCREEN BY FORMING A MULTIPLICITY OF FLAT AREAS APPROXIMATELY ELLIPTICAL IN SHAPE ON ITS OPPOSITE SIDE AND BULGING THE WIRE LATERALLY ADJACENT EACH FLAT AREA, PLACING THE SCREEN, A SUITABLE SILVER SOLDER AND A SUITABLE FLUX BETWEEN THE BODIES, PRESSING THE BODIES TOGETHER, AND HEATING THE BODIES UNTIL THE SILVER SOLDER MELTS AND DISTRIBUTES ITSELF IN THE VERY NARROW SPACES BETWEEN THE SAID FLAT AREAS AND THE ADJACENT SURFACES OF THE BODIES AND IN THE VERY NARROW SPACES BETWEEN THE ADJACENT BULGED PORTIONS OF THE CROSSING WIRES.
Claim 2
Independent Claim
126 words
A METHOD OF BRAZING A BODY OF TUNGSTEN CARBIDE TO A BODY OF STEEL COMPRISING THE STEPS OF FEEDING A SCREEN OF WOVEN COPPER WIRE OF CIRCULAR CROSS SECTION BETWEEN TWO PARALLEL ROLLS TO REDUCE THE THICKNESS OF THE SCREEN BY FORMING A MULTIPLICITY OF FLAT AREAS APPROXIMATELY ELLIPTICAL IN SHAPE ON ITS OPPOSITE SIDE AND BULGING THE WIRE LATERALLY ADJACENT EACH FLAT AREA, PLACING THE SCREEN, A SUITABLE SILVER SOLDER AND A SUITABLE FLUX BETWEEN THE BODIES, PRESSING THE BODIES TOGETHER, AND HEATING THE BODIES UNTIL THE SILVER SOLDER MELTS AND DISTRIBUTES ITSELF IN THE VERY NARROW SPACES BETWEEN THE SAID FLAT AREAS AND THE ADJACENT SURFACES OF THE BODIES AND IN THE VERY NARROW SPACES BETWEEN THE ADJACENT BULGED PORTIONS OF THE CROSSING WIRES.
Claim 3
Dependent Claim
118 words
A COMPOSITE ARTICLE COMPRISING TWO JUXTAPOSED METAL BODIES HAVING DIFFERENT COEFFICIENTS OF THERMAL EXPANSION, ONE OF THE BODIES BEING FORMED OF TUNGSTEN CARBIDE AND THE OTHER OF STEEL, A SCREEN OF WOVEN COPPER WIRE OF CIRCULAR CROSS-SECTION LOCATED BETWEEN THE BODIES, THE SCREEN HAVING BEEN FED BETWEEN TWO PARALLEL ROLLS SO THAT THE THICKNESS HAS BEEN REDUCED BY FORMING A MULTIPLICITY OF FLAT AREAS APPROXIMATELY ELLIPTICAL IN SHAPE ON ITS OPPOSITE SIDES AND BY FORMING BULGES IN THE WIRE LATERALLY ADJACENT EACH FLAT AREA, AND A THIN LAYER OF SILVER SOLDER FIRMLY BONDING EACH OF SAID FLAT AREAS TO THE ADJACENT BODY AND THE BULGED PORTIONS OF EACH WIRE TO THE ADJACENT BULGED PORTIONS OF THE CROSSING WIRES.
Claim 4
Dependent Claim
118 words
A COMPOSITE ARTICLE COMPRISING TWO JUXTAPOSED METAL BODIES HAVING DIFFERENT COEFFICIENTS OF THERMAL EXPANSION, ONE OF THE BODIES BEING FORMED OF TUNGSTEN CARBIDE AND THE OTHER OF STEEL, A SCREEN OF WOVEN COPPER WIRE OF CIRCULAR CROSS-SECTION LOCATED BETWEEN THE BODIES, THE SCREEN HAVING BEEN FED BETWEEN TWO PARALLEL ROLLS SO THAT THE THICKNESS HAS BEEN REDUCED BY FORMING A MULTIPLICITY OF FLAT AREAS APPROXIMATELY ELLIPTICAL IN SHAPE ON ITS OPPOSITE SIDES AND BY FORMING BULGES IN THE WIRE LATERALLY ADJACENT EACH FLAT AREA, AND A THIN LAYER OF SILVER SOLDER FIRMLY BONDING EACH OF SAID FLAT AREAS TO THE ADJACENT BODY AND THE BULGED PORTIONS OF EACH WIRE TO THE ADJACENT BULGED PORTIONS OF THE CROSSING WIRES.
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) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |