US3916062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molecular sieves as fade inhibitors in friction materials
Assignee: FRICTION DIVISON PRODUCTS Inc N ENTERPRISE AVE TRENTON NJ 08638 A CORP
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Filing: 1974-11-15
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Granted: 1975-10-28
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Expires: 1994-11-15
Abstract
Abstract Automotive brake linings having improved fade resistance can be prepared by incorporating in conventional brake linings a small amount, preferably 1% to 15% by weight of an unloaded molecular sieve.
Inventors
- 👤 Philip H Dougherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:09
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; Y; Y10; Y10T; Y10T428/00; Y10T428/21; Y10T428/213; Y10T428/31504; Y10T428/31652
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
35 words
AN AUTOMOTIVE BRAKE LINING MATERIAL COMPRISING AS ITS ESSENTIAL INGREDIENTS ASBESTOS, A SYNTHETIC THERMOSETTING RESIN AND AN UNLOADED MOLECULAR SIEVE IN AN AMOUNT TO SUBSTANTIALLY INCREASE THE RESISTANCE OF THE BRAKE LINING MATERIAL TO FADE.
Claim 2
Dependent Claim
35 words
AN AUTOMOTIVE BRAKE LINING MATERIAL COMPRISING AS ITS ESSENTIAL INGREDIENTS ASBESTOS, A SYNTHETIC THERMOSETTING RESIN AND AN UNLOADED MOLECULAR SIEVE IN AN AMOUNT TO SUBSTANTIALLY INCREASE THE RESISTANCE OF THE BRAKE LINING MATERIAL TO FADE.
Claim 3
Dependent Claim
25 words
The automotive brake lining material of claim 1 wherein the molecular sieve is present in an amount up to 15% by weight of said material.
Claim 4
Dependent Claim
26 words
The automotive brake lining material of claim 1 wherein the molecular sieve is present to the extent of 1% to 15% by weight of said material.
Claim 5
Dependent Claim
34 words
An automotive brake lining material comprising as its essential ingredients asbestos, a phenolic resin and an unloaded molecular sieve in an amount to substantially increase the resistance of the brake lining material to fade.
Claim 6
Dependent Claim
34 words
An automotive brake lining material comprising as its essential ingredients asbestos, a phenolic resin and an unloaded molecular sieve in an amount to substantially increase the resistance of the brake lining material to fade.
Claim 7
Dependent Claim
31 words
An automotive brake lining material comprising as its essential ingredients asbestos, a phenolic resin and an unloaded molecular sieve in an amount of 1% to 15% by weight of said material.
Claim 8
Dependent Claim
31 words
An automotive brake lining material comprising as its essential ingredients asbestos, a phenolic resin and an unloaded molecular sieve in an amount of 1% to 15% by weight of said material.
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) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |