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Development of a High Force Thermal LatchThis paper describes the preliminary development of a high force thermal latch (HFTL). The HFTL has one moving part which is restrained in the latched position by a low melting temperature or fusible metal alloy. When heated the fusible alloy flows to a receiving chamber and in so doing at first releases the tension load in the latch bolt and later releases the bolt itself. The HFTL can be used in place of pyrotechnically activated spacecraft release devices in those instances where the elimination of both pyrotechnic shock-loading and rapid strain-energy release take precedence over the near instantaneous release offered by ordnance initiated devices.
Document ID
19950020855
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
William D Nygren
(Martin Marietta Astronautics Denver, CO, United States)
Date Acquired
September 6, 2013
Publication Date
May 1, 1995
Publication Information
Publication: 29th Aerospace Mechanisms Symposium
Publisher: National Aeronautics and Space Administration
Subject Category
Mechanical Engineering
Report/Patent Number
NASA/CP-3293
Meeting Information
Meeting: 29th Aerospace Mechanisms Symposium
Location: League City, TX
Country: US
Start Date: May 17, 1995
End Date: May 19, 1995
Sponsors: Lockheed Missiles and Space Company (United States), National Aeronautics and Space Administration
Accession Number
95N27275
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
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