Precompressed spring structure

Details Precompressed spring structure Precompressed spring structure

F - Mech Eng,Light,Heat,Weapons

16

F

267/108

F16F 1/12 (2006.01) F15B 13/00 (2006.01) F15B 15/08 (2006.01) F16K 31/12 (2006.01) F16K 31/163 (2006.01)

Patent

CA 1292251

Abstract: A precompressed spring assembly suitable for a single acting pneumatically controlled semi-rotating actuator, comprises a compression coil spring having extension limiting means for limiting the elongation of the spring to a value less than its natural length and greater than but close to the maximum elongation in use. The extension limiting means are constituted by spring cups engaging, respective ends of the spring and carried slidably on a pin which also has means for limiting the travel of the spring cups

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