US3343955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of attaching a back to a brake drum by brazing during a sintering operation
Assignee: Motor Wheel Corp
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Filing: 1964-02-03
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Granted: 1967-09-26
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Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 Talmage Charles Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:53
CPC Classifications
B; B22; B22F; B22F7/00; B22F7/06; B22F7/08; F; F16; F16D; F16D65/00; F16D65/02; F16D65/10; F16D2065/13; F16D2065/1304; F16D2065/1316; F16D2065/132; F16D2065/134; F16D2065/1344
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
THE METHOD OF ATTACHING A BRAKE DRUM BACK TO A GENERALLY CYLINDRICAL BRAKE DRUM AT ONE END THEREOF WHEREIN A PARTLY FINISHED BRAKE DRUM INCLUDES A GREEN COMPACT COMPRISING PRIMARILY FERROUS METAL POWDERS THAT ARE TO BE SINTERED TO FORM A WEAR MATERIAL BRAKE TRACK IN A FINISHED BRAKE DRUM, SAID BACK BEING MADE OF A FERROUS ALLOY AND BEING ADAPTED TO ASSEMBLE SAID DRUM ON OTHER WHEEL PARTS, COMPRISING THE STEPS OF POSITIONING SAID BACK IN JUXTAPOSITION WITH SAID PARTLY FINISHED BRAKE DRUM AT SAID ONE END THEREOF TO DEFINE A PROPOSED JUNCTURE THEREBETWEEN, AND SUPPLYING TO SAID JUNCTION BRAZING MATERIAL HAVING A MELTING TEMPERATURE WITHIN THE SINTERING TEMPERATURE RANGE OF SAID FERROUS POWDERS COMPACT WHILE HEATING SAID PARTLY FINISHED BRAKE DRUM, SAID BACK AND SAID BRAZING MATERIAL TO A TEMPERATURE SUFFICIENT TO SINTER SAID FERROUS POWDERS COMPACT AND TO SECURE SAID BACK TO SAID DRUM AT SAID ONE END THEREOF WITH A BRAZED JOINT.
Claim 2
Independent Claim
156 words
THE METHOD OF ATTACHING A BRAKE DRUM BACK TO A GENERALLY CYLINDRICAL BRAKE DRUM AT ONE END THEREOF WHEREIN A PARTLY FINISHED BRAKE DRUM INCLUDES A GREEN COMPACT COMPRISING PRIMARILY FERROUS METAL POWDERS THAT ARE TO BE SINTERED TO FORM A WEAR MATERIAL BRAKE TRACK IN A FINISHED BRAKE DRUM, SAID BACK BEING MADE OF A FERROUS ALLOY AND BEING ADAPTED TO ASSEMBLE SAID DRUM ON OTHER WHEEL PARTS, COMPRISING THE STEPS OF POSITIONING SAID BACK IN JUXTAPOSITION WITH SAID PARTLY FINISHED BRAKE DRUM AT SAID ONE END THEREOF TO DEFINE A PROPOSED JUNCTURE THEREBETWEEN, AND SUPPLYING TO SAID JUNCTION BRAZING MATERIAL HAVING A MELTING TEMPERATURE WITHIN THE SINTERING TEMPERATURE RANGE OF SAID FERROUS POWDERS COMPACT WHILE HEATING SAID PARTLY FINISHED BRAKE DRUM, SAID BACK AND SAID BRAZING MATERIAL TO A TEMPERATURE SUFFICIENT TO SINTER SAID FERROUS POWDERS COMPACT AND TO SECURE SAID BACK TO SAID DRUM AT SAID ONE END THEREOF WITH A BRAZED JOINT.
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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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |