US2728700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction member
Assignee: Individual
•
Filing: 1953-03-16
•
Granted: 1955-12-27
•
Expires: 1973-03-16
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Gatke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:26
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/022; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24678; Y10T428/31504; Y10T428/31652
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A RIGID FRICTION MEMBER ADAPTED FOR ENGAGEMENT WITH A COMPLEMENTARY BRAKING ELEMENT, CONSISTING FOR THE MOST PART OF A HARD CURED NON-COMPRESSIBLE BLOCK OF MOLDED FRICTION COMPOSITION, WHICH BLOCK IS PROVIDED WITH A SMOOTH FRICTION FACE ADAPTED FOR FLATWISE ENGAGEMENT WITH SAID BRAKING ELEMENT, AND A PLURALITY OF SEPARATELY CURED STRIPS OF YARN-LIKE FRICTION MATERIAL, WHICH STRIPS ARE RELATIVELY SOFT AND RELATIVELY COMPRESSIBLE WITH RESPECT TO THE MOLDED FRICTION COMPOSITION OF THE BLOCK AND ARE EMBEDDED IN WIDELY SEPARATED CRISSCROSSING RELATION IN SAID FRICTION FACE THROUGH THE DEPTH OF NORMAL WEAR OF THE BLOCK WITH PORTIONS OF THE STRIPS NORMALLY PROJECTING BEYOND SAID FACE, SAID PROJECTING PORTIONS OF THE STRIPS, UPON FORCIBLE ENGAGEMENT OF THE FRICTION MEMBER WITH SAID COMPLEMENTARY BRAKING ELEMENT BEING COMPRESSIBLE INTO POSITIONS FLUSH WITH THE INTERVENING PORTIONS OF THE FRICTION FACE OF THE BLOCK.
Claim 2
Dependent Claim
138 words
A RIGID FRICTION MEMBER ADAPTED FOR ENGAGEMENT WITH A COMPLEMENTARY BRAKING ELEMENT, CONSISTING FOR THE MOST PART OF A HARD CURED NON-COMPRESSIBLE BLOCK OF MOLDED FRICTION COMPOSITION, WHICH BLOCK IS PROVIDED WITH A SMOOTH FRICTION FACE ADAPTED FOR FLATWISE ENGAGEMENT WITH SAID BRAKING ELEMENT, AND A PLURALITY OF SEPARATELY CURED STRIPS OF YARN-LIKE FRICTION MATERIAL, WHICH STRIPS ARE RELATIVELY SOFT AND RELATIVELY COMPRESSIBLE WITH RESPECT TO THE MOLDED FRICTION COMPOSITION OF THE BLOCK AND ARE EMBEDDED IN WIDELY SEPARATED CRISSCROSSING RELATION IN SAID FRICTION FACE THROUGH THE DEPTH OF NORMAL WEAR OF THE BLOCK WITH PORTIONS OF THE STRIPS NORMALLY PROJECTING BEYOND SAID FACE, SAID PROJECTING PORTIONS OF THE STRIPS, UPON FORCIBLE ENGAGEMENT OF THE FRICTION MEMBER WITH SAID COMPLEMENTARY BRAKING ELEMENT BEING COMPRESSIBLE INTO POSITIONS FLUSH WITH THE INTERVENING PORTIONS OF THE FRICTION FACE OF THE BLOCK.
References Cited (Backward Citations)
US1700037A
Cited
US2025052A
Cited
US2077669A
Cited
US2052808A
Cited
GB478974A
Cited
US2555261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |