Extension spring with noise damper and method of making same

Details Extension spring with noise damper and method of making same Extension spring with noise damper and method of making same

F - Mech Eng,Light,Heat,Weapons

16

F

F16F 1/06 (2006.01) F16F 1/12 (2006.01) F16F 15/02 (2006.01)

Patent

CA 2277698

A noise-damped extension spring includes a resilient formed-in-place damper within the tubular spring body for damping vibrations of the spring. The damper is formed by placing a solidifiable composition such as heat-expandable foam-forming composition into the interior of the spring body, and causing the composition to solidify so as to form a resilient damper which generally conforms to the inner surface of the spring body. The method preferably includes heating the spring with the heat-expandable composition therein so as to both relieve residual stresses in the spring and cause expansion and solidification of the composition.

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