US3269976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake lining from graphite and metal particles in a thermosetting binder
Assignee: Individual
•
Filing: 1965-10-11
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Granted: 1966-08-30
•
Expires: 1985-10-11
Abstract
No abstract record available.
Inventors
- 👤 Ueda Yoshitaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:29
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/025; C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A VEHICLE WHEEL BRADE SHOE LINING, THE COEFFICIENT OF FRICTION TO WHICH REMAINS PARTICALLY UNCHANGED AT WHEEL SPEEDS BETWEEN 120 KILOMETERS PER HOUR AND 260 KILOMETERS PER HOUR AND REMAINS ESSENTIALLY UNIMPAIRED WITH INCREASE IN TEMPERATURES UP TO 450*C., WHICH CONSISTS ESSENTIALLY OF A HEAT-AND-PRESSURE MOLDED SUBSTANTIALLY UNIFORM ADMIXTURE OF GRAPHITE GRANULES WITH METAL GRANULES SELECTED FROM THE GROUP CONSISTING OF COPPER, ALUMINUM AND LEAD AND WITH, AS BINDING AGENT, A THERMOSET SYNTHETIC RESIN SELECTED FROM THE GROUP CONSISTING OF PHENOL-FORMALDEHYDE AND MELAMINE-FORMALDEHYDE RESINS, THE SAID GRAPHITE GRANULES BEING OF A SIZE WITHIN THE RANGE OF 60 TO 500 MESH AND CONSTITUTING 50 TO 70% BY WEIGHT OF THE MIXTURE, THE SAID METAL GRANULES BEING OF A SIZE WITHIN THE RANGE OF 10 TO 100 MESH AND CONSTITUTING 5 TO 30% BY WEIGHT OF THE MIXTURE, AND THE RESINOUS BINDING AGENT CONSTITUTING 20 TO 50% BY WEIGHT OF THE MIXTURE.
Claim 2
Dependent Claim
150 words
A VEHICLE WHEEL BRADE SHOE LINING, THE COEFFICIENT OF FRICTION TO WHICH REMAINS PARTICALLY UNCHANGED AT WHEEL SPEEDS BETWEEN 120 KILOMETERS PER HOUR AND 260 KILOMETERS PER HOUR AND REMAINS ESSENTIALLY UNIMPAIRED WITH INCREASE IN TEMPERATURES UP TO 450*C., WHICH CONSISTS ESSENTIALLY OF A HEAT-AND-PRESSURE MOLDED SUBSTANTIALLY UNIFORM ADMIXTURE OF GRAPHITE GRANULES WITH METAL GRANULES SELECTED FROM THE GROUP CONSISTING OF COPPER, ALUMINUM AND LEAD AND WITH, AS BINDING AGENT, A THERMOSET SYNTHETIC RESIN SELECTED FROM THE GROUP CONSISTING OF PHENOL-FORMALDEHYDE AND MELAMINE-FORMALDEHYDE RESINS, THE SAID GRAPHITE GRANULES BEING OF A SIZE WITHIN THE RANGE OF 60 TO 500 MESH AND CONSTITUTING 50 TO 70% BY WEIGHT OF THE MIXTURE, THE SAID METAL GRANULES BEING OF A SIZE WITHIN THE RANGE OF 10 TO 100 MESH AND CONSTITUTING 5 TO 30% BY WEIGHT OF THE MIXTURE, AND THE RESINOUS BINDING AGENT CONSTITUTING 20 TO 50% BY WEIGHT OF THE MIXTURE.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |