US3332774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a sintered impregnated metal brake drum
Assignee: Motor Wheel Corp
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Filing: 1963-12-18
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Granted: 1967-07-25
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Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 Elvin E Tuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:30
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/24; B22F3/26; F; F16; F16D; F16D65/00; F16D65/02; F16D65/10; F16D69/00; F16D69/02; F16D69/027; F16D2065/13; F16D2065/1304; F16D2065/1316; F16D2065/132; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49677
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
IN THE METHOD OF LINING A BRAKE DRUM SHELL THAT IS OPEN AT ONE END THEREOF AND HAS A RADIALLY OUTWARDLY FLARED PORTION AT SAID ONEEND ADAPTED TO FORM A DUST SEAL GROOVE WHEN SAID SHELL IS ASSEMBLED WITH OTHER BRAKE PARTS, THE STEPS OF POSITIONING INFILTRANT WITHIN SAID FLARED PORTION, POSITIONING A SLEEVE OF PRIMARILY FERROUS POWDER WITHIN SAID SHELL WITH AN END PORTION OF SAID SLEEVE DISPOSED ADJACENT SAID INFILTRANT SO AS TO BE SUPPORTED RADIALLY THEREBY, SAID INFILTRANT HAVING A MELTING TEMPERATURE IN THE SINTERING TEMPERATURE RANGE OF SAID FERROUS POWDER, AND HEATING SAID SLEEVE AND SAID INFILTRANT TO A TEMPERATURE WITHIN THE SINTERING TEMPERATURE RANGE OF SAID FERROUS POWDER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |