Spring devices – Coil – Including end thrust member
Reexamination Certificate
2006-04-11
2006-04-11
Siconolfi, Robert A. (Department: 3683)
Spring devices
Coil
Including end thrust member
C267S175000, C267S255000
Reexamination Certificate
active
07025343
ABSTRACT:
In an adjusting method for remedying the coil pitch tolerance and fatigue deformation of an adjustable helical spring, an adjusting mechanism is mounted at one end of the casing for the adjustable helical spring for changing the precompression or the pretension of the helical spring to thereby remedy the coil pitch tolerance and fatigue deformation thereof, and rotating a rotatable element mounted in the casing and connected to one end of the helical spring, so that the helical spring is adjusted to a preset number of effective turns, and then the precompression or the pretension of the helical spring is adjusted. The adjusting method not only solves the problem of coil pitch tolerance and fatigue deformation existed in the adjustable helical spring, but also reduces noises produced by the adjustable helical spring in use.
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Birch & Stewart Kolasch & Birch, LLP
Siconolfi Robert A.
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