Spring devices – Resilient shock or vibration absorber
Patent
1992-07-16
1993-08-31
Halvosa, George E. A.
Spring devices
Resilient shock or vibration absorber
248570, 248626, 248628, 248901, 267148, F16F 302
Patent
active
052402320
ABSTRACT:
Helical isolator (I.sup.1, I.sup.2) in a turnbuckle frame (10) on a central rod (2) with connector rods (34, 36) of opposite handed threads, are for mounting between a pipe and an adjacent structure. The wire energy absorbing rope bights (32) of the isolator I.sup.1, I.sup.2 are placed in parallel planes and in a state of precompression and have bi-linear spring properties which are adjustably provided by the diameter of the structural tube (10) and spacer bars (30) attached to the tube wall (12) as part of the bases (26, 28) of the isolators.
REFERENCES:
patent: 2421822 (1947-06-01), Wood
patent: 3204911 (1965-09-01), Lawrence et al.
patent: 4190227 (1980-02-01), Belfield et al.
patent: 4397069 (1983-08-01), Camossic
patent: 4783038 (1988-11-01), Gilbert et al.
patent: 4955467 (1990-09-01), Kallenbach
Loziuk, Larry A. A Wire Rope Seismic Support Nuclear Engineering and Design 107 (1988) 201-204, North Holland, Amsterdam.
ABB Impell Corporation
Halvosa George E. A.
Mulholland John H.
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