Earthquake latch

Details Earthquake latch Earthquake latch

1995-06-19

1997-01-28

Lindsey, Rodney M.

Closure fasteners

Bolts

Sliding

292180, 292DIG22, 292DIG65, E05C 108

Patent

active

055971881

ABSTRACT:
A latching device which detects the initial shocks of major earthquakes and activates safety devices before the onset of destructive ground motions. A unidirectional vertical threshold seismoscope is integrated with mechanical and electromechanical safety devices to latch cabinets closed, secure movable objects, shut off gas, water, and electric utilities, activate alarms, early warning networks, and related automated response systems. The device is fully self contained, requires no external power, and is virtually impervious to nonearthquake noise in that it is designed to respond specifically to the vertical acceleration and displacement characteristic of the initial shock waves of a major earthquake.

REFERENCES:
patent: 1944382 (1934-01-01), Wecker
patent: 2826444 (1958-03-01), Kurilenko
patent: 3381992 (1968-05-01), Friesen
patent: 3397001 (1968-08-01), Friedman
patent: 3879072 (1975-04-01), Tuley
patent: 3888525 (1975-06-01), Kousens
patent: 3889992 (1975-06-01), Sheiton
patent: 3971237 (1976-07-01), Rasmussen
patent: 4139249 (1979-02-01), Hillman
patent: 4408196 (1983-10-01), Freeman
patent: 4416477 (1983-11-01), Bialobrzeski et al.
patent: 4528559 (1985-07-01), Freeman
patent: 4623177 (1986-11-01), McKinney
patent: 4688023 (1987-08-01), McGill et al.
patent: 4715628 (1987-12-01), Brink et al.
patent: 4717184 (1988-01-01), Boyce
patent: 4872286 (1989-10-01), Peirish et al.
patent: 4919464 (1990-04-01), Richards
patent: 5001466 (1991-03-01), Orlinsky et al.
patent: 5035451 (1991-07-01), Brady
patent: 5076623 (1991-12-01), Richards
patent: 5101195 (1992-03-01), Caillat et al.
patent: 5152562 (1992-10-01), Stevenson et al.
patent: 5188405 (1993-02-01), Maccaferri
patent: 5312143 (1994-05-01), Buckner

Affiliated with

Also associated with

Rating

Earthquake latch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Earthquake latch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Earthquake latch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-937615