Spring devices – Elastic extension devices – Tension spring
Patent
1987-12-04
1989-04-18
Reger, Duane A.
Spring devices
Elastic extension devices
Tension spring
267174, 267180, F16F 1300, F16F 106
Patent
active
048220086
ABSTRACT:
Vibration-damped spring for dynamic tension rollers, consisting of a tubular vibration damper with freedom of linear movement and a helical spring closely surrounding the damper wherein the helical spring has a middle section with turns of a larger diameter and in that, starting from that section, a continuous transition is provided toward the two ends with turns of a smaller diameter.
REFERENCES:
patent: 231150 (1880-08-01), Cliff
patent: 1210518 (1917-01-01), Nolan
patent: 1260921 (1918-03-01), Leissner
patent: 2054009 (1936-09-01), Thrush
patent: 2622448 (1952-12-01), Lorig
patent: 3582059 (1971-06-01), Van Ooy
Brandenstein Manfred
Hans Rudiger
Winkler Otmar
Reger Duane A.
Renz Jr. Eugene E.
SFK GmbH
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