US3603260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stand-off type ablative heat shield
Assignee: National Aeronautics and Space Administration
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Filing: 1969-01-15
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Granted: 1971-09-07
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Expires: 1989-01-15
Abstract
Abstract An ablative heat shield for protection against aerodynamic heating of reentry spacecraft comprising a carpet having pile extending from either side of a fabric base. One side of the carpet is impregnated with the standard ablative material, constituting the heat rejection element; and the ends of the pile of the opposite side are adhesively bonded to the substructure of the spacecraft, so that the fabric base ''''stands off'''' the substructure by the length of the pile.
Inventors
- 👤 Caldwell C Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:47
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/22; B64G1/52; B64G1/58; F; F42; F42B; F42B15/00; F42B15/34; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
An ablative heat shield for thermally protecting a body comprising: a structural reinforcing matrix including a base member having a front face and a back face, with a plurality of front face pile members substantially perpendicular to and integral with said base member; ablative means impregnated into said front face pile members and openly structured spacer means at said back face of said base member for standing off said ablative means from the thermally protected body, defining a controlled gap therebetween, when the heat shield is attached to the body.
Claim 2
Dependent Claim
90 words
An ablative heat shield for thermally protecting a body comprising: a structural reinforcing matrix including a base member having a front face and a back face, with a plurality of front face pile members substantially perpendicular to and integral with said base member; ablative means impregnated into said front face pile members and openly structured spacer means at said back face of said base member for standing off said ablative means from the thermally protected body, defining a controlled gap therebetween, when the heat shield is attached to the body.
Claim 3
Dependent Claim
26 words
The combination as set forth in Claim 1 wherein said base member is of a woven fabric and said front face pile members are interwoven therewith.
Claim 4
Dependent Claim
27 words
The combination as set forth in Claim 2 wherein said spacer means comprises a plurality of back face pile members interwoven substantially perpendicular to said base member.
Claim 5
Dependent Claim
25 words
The combination as set forth in Claim 2 wherein said spacer means comprises said fabriC base member woven to a controlled looseness and dimensional thickness.
Claim 6
Dependent Claim
16 words
The combination as set forth in Claim 1 including a substrate attached to said spacer means.
Claim 7
Dependent Claim
17 words
The combination as set forth in Claim 5 wherein said substrate is attached by an adhesive bond.
Claim 8
Dependent Claim
17 words
The combination as set forth in Claim 5 wherein said substrate comprises the bulkhead of a spacecraft.
References Cited (Backward Citations)
US3250661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |