Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1996-06-14
1998-06-30
Bell, James J.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
156169, 156175, 156184, 428 3691, B32B 3100
Patent
active
057731080
ABSTRACT:
A containment structure for radially deployable devices in the form of a self-coiling composite band. The composite band is fabricated as a lay up of epoxy resin-impregnated ply layers of cloth material that are wrapped about a mandrel and cured in a specific ordered sequence. The ordered sequence of fabrication steps of applying and curing the resin-impregnated cloth layers to the mandrel provides a desired separation of the cured ply layers of the final composite so that they are located at the outer most regions of the composite and are separated by an intermediate resin layer of desired thickness. This ensures a composite band which is effective to function as a negator-spring or composite clock spring and which also exhibits a good combination of mechanical properties, such as elastic modulus, strength, and resilience. In use, the self-coiling composite band is applied about the periphery of a central hub of a radially deployable device by wrapping it therearound in a reverse curl orientation. A latch, preferably formed of composite material, is provided to the free ends of the composite band to secure the band in its reversed wrapped containment position about the radially deployable device.
REFERENCES:
patent: 4464216 (1984-08-01), Gardiner
patent: 5446474 (1995-08-01), Wade et al.
patent: 5518568 (1996-05-01), Fawley et al.
Bell James J.
Lockheed Martin Corporation
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