Buckles – buttons – clasps – etc. – Fastener destructively secured by reshaping distortion force
Patent
1992-07-31
1994-01-18
Sakran, Victor N.
Buckles, buttons, clasps, etc.
Fastener destructively secured by reshaping distortion force
2853822, 294212, B21D 2600, F16B 1900
Patent
active
052790223
ABSTRACT:
A method and apparatus for providing a multidirectional clamping force to clamp selected materials together is disclosed and comprises a tube formed into a closed circular shape and formed of martensitic material and deformed in a first predetermined direction such that the cross-section of said tube is non-circular. An energetic material is loaded into the interior cavity of the tube. An ignition system is operatively positioned with respect to the tube and is capable of igniting the energetic material. Upon ignition of the energetic material, the tube is reconfigured to provide a clamping force in a predetermined direction to clamp the materials together.
REFERENCES:
patent: 2367206 (1945-01-01), Davis
patent: 3341650 (1967-09-01), Broske
patent: 3759551 (1973-09-01), Broske
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O. E. Jones, "Metal Response Under Explosive Loading", Behavior and Utilization of Explosives in Engineering Design and Biomechanical Principles Applied to Clinical Medicine, pp. 125-148, published by New Mexico Section, American Society of Mechanical Engineers, Albuquerque, N.M., 1972.
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Tom Borden, "Shape Memory Alloy Fastener Rings", cover and pp. 1-22, Raychem Corporation, Menlo Park, Calif., May 11, 1990.
"Unilok.TM. Rings-A Revolution in Fastening, Sealing and Electrical Interconnection", pp. 1-6, Raychem Corporation Metals Division, Menlo Park, Calif., Copright 1991, printed May, 1991.
Loral Vought Systems Corporation
Sakran Victor N.
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