Spring devices – Packing expander or constrictor
Patent
1988-08-15
1990-01-16
Kashnikow, Andres
Spring devices
Packing expander or constrictor
267167, 267180, 277164, F16F 106
Patent
active
048937959
ABSTRACT:
A radially resilient canted coiled springs includes a plurality of coils canted along a centerline thereof with each coil having a trailing portion and a leading portion. The disposition of the trailing portion is defined by a back angle between the trailing portion and a line normal to the centerline and the disposition of the leading portion is defined by a front angle between the leading portion and a normal line. Specific resilient performance, or load-deflection characteristics of the radially resilient canted coiled springs is determined by controlling a turn angle of the coil spring.
REFERENCES:
patent: 1473446 (1923-11-01), Scott
patent: 1867723 (1932-07-01), Adams
patent: 2154275 (1939-04-01), Linn
patent: 2610846 (1952-09-01), Hanna
patent: 2859033 (1958-11-01), Rose
patent: 3061060 (1962-10-01), Stephenson
patent: 3183010 (1965-05-01), Bram
patent: 3223785 (1967-06-01), Mather
patent: 3468527 (1969-09-01), Mather
patent: 4655462 (1987-04-01), Balsells
Balsells Joan C.
Balsells Peter J.
Graham Matthew L.
Hackler Walter A.
Kashnikow Andres
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