Title: Thermal insulation protection means

Abstract: A system for providing thermal insulation for portions of a spacecraft which do not exceed 900.degree. F. (756.degree. K.) during ascent or reentry relative to the earth's atmosphere. The thermal insulation is formed of relatively large flexible sheets of needled Nomex felt having a flexible waterproof coating. The thickness of the felt is sized to protect against projected temperatures and is attached to the structure by a resin adhesive. Vent holes in the sheets allow ventilation while maintaining waterproofing. The system is heat treated to provide thermal stability.

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Inventors: Dotts, Robert L. (Seabrook, TX, US)
Maraia, Robert J. (Seabrook, TX, US)
Smith, James A. (Seabrook, TX, US)
Strouhal, George (Friendswood, TX, US)

Application Number: 788045
Filing Date: 1977-04-15
Publication_date: 1979-05-01
Assignee: The United States of America as represented by the Administrator of the (Washington, DC)
Primary Class(es): 244/158A 244/121, 244/163, 427/350, 427/397.7, 428/137, 428/332, 428/447, 428/920
Other Classes:
US Patent Ref:

2684349	Jul, 1954	Whelton	428/266.
3455732	Jul, 1969	Hathawa, Jr.	428/447.
3920339	Nov, 1975	Fletcher	428/109.

Other Refs:
Primary Examiner: Lesmes, George F.
Assistant Examiner: Thibodeau, P.
Attorney: Schlorff; Russell E., Manning; John R., Matthews; Marvin F.