Patent US4187932A successfully refreshed from Google Patents.
US4187932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ribbon-wrapped carbon brake disk
Assignee: Goodyear Aerospace Corp
•
Filing: 1978-02-01
•
Granted: 1980-02-12
•
Expires: 1998-02-01
Abstract
Abstract The invention relates to the utilization of a pyrolyzed carbon-containing ribbon which is wrapped about a brake disk core. The ribbon which is impregnated with a bonding agent forms an outer layer when wrapped about the core. An integral brake disk is formed upon pyrolyzation of the bonding compound.
Inventors
- 👤 Robert L. Zarembka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:57
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/12; F16D65/125; F16D65/126; C; C04; C04B; C04B35/00; C04B35/71; C04B35/78; C04B35/80; C04B35/83; F16D69/00; F16D69/02; F16D69/023; Y; Y10; Y10T; Y10T428/00; Y10T428/21; Y10T428/213; Y10T428/30
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
72 words
A process for fabricating an annularly strengthened integral brake disk, comprising the steps of: fabricating a brake disk core, having core faces; impregnating a pyrolyzed carbon-containing ribbon of continuous uniform width with a bonding agent; continuously wrapping said pyrolyzed carbon-containing ribbon completely about said core faces of said core in a sequential overlapping manner to form an outer layer; and pyrolyzing said bonding agent to form an annularly strengthened integral brake disk.
Claim 2
Dependent Claim
72 words
A process for fabricating an annularly strengthened integral brake disk, comprising the steps of: fabricating a brake disk core, having core faces; impregnating a pyrolyzed carbon-containing ribbon of continuous uniform width with a bonding agent; continuously wrapping said pyrolyzed carbon-containing ribbon completely about said core faces of said core in a sequential overlapping manner to form an outer layer; and pyrolyzing said bonding agent to form an annularly strengthened integral brake disk.
Claim 3
Dependent Claim
38 words
A process according to claim 1, wherein said brake disk core is made from a compound selected from the class consisting of a carbon/carbon composite, a carbon/graphite composite, a graphite/graphite composite, bulk carbon, bulk graphite, and combinations thereof.
Claim 4
Dependent Claim
17 words
A process according to claim 2, including wrapping said ribbon about said core in a radial manner.
Claim 5
Dependent Claim
17 words
A process according to claim 2, including wrapping said ribbon about said core in a parallel manner.
Claim 6
Dependent Claim
17 words
A process according to claim 2, including wrapping said ribbon about said core in a chordal manner.
Claim 7
Dependent Claim
17 words
A process according to claim 2, including wrapping said ribbon about said core in a diametrical manner.
Claim 8
Dependent Claim
17 words
A process according to claim 2, including wrapping said ribbon about said core in a criss-cross manner.
Claim 9
Dependent Claim
11 words
A process according to claim 2, wherein said core is tapered.
Claim 10
Dependent Claim
27 words
A process according to claim 2, wherein said bonding agent is selected from the class consisting of petroleum pitch, furan resin, phenolic resin, and coal tar pitch.
Claim 11
Dependent Claim
32 words
A process according to claim 9, including making said pyrolyzed carbon-containing ribbon from a fiber, said fiber selected from the class consisting of rayon, polyacrylonitrile, wool, petroleum pitch, and coal tar pitch.
Claim 12
Dependent Claim
11 words
A process according to claim 10, wherein said core is tapered.
Claim 13
Dependent Claim
30 words
A process according to claim 10, wherein said disk core has an inner periphery and an outer periphery, and wrapping said ribbon completely about said inner and said outer peripheries.
References Cited (Backward Citations)
US2335902A
Cited
GB567030A
Cited
US3552533A
Cited
US3692150A
Cited
US3731769A
Cited
US4002225A
Cited
US3956548A
Cited
US3936552A
Cited
US4005233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-11 | 1983-08-13 | 1984-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-11 | 1987-08-13 | 1988-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-11 | 1991-08-13 | 1992-02-12 | $7700.00 | Window Closed / Lapsed |