Safety device for a system transported on board a vehicle, in pa

Details Safety device for a system transported on board a vehicle, in pa Safety device for a system transported on board a vehicle, in pa

1995-05-08

1996-07-23

Butler, Douglas C.

Brakes

Plastic deformation or breakage of retarder element

188275, 188300, 188269, 267 6412, 267 6415, 296 681, 2972161, F16F 936

Patent

active

055381170

ABSTRACT:
The invention relates to a safety device for a system transported on board a vehicle, in particular an aircraft, said system being connected to the structure of the vehicle via at least one element having a cylindrical body and a telescopic rod. According to the invention, the body and the rod of each element together define two internal fluid chambers which are normally isolated from each other, a communication passage being provided between the two chambers and normally being closed by an associated throttling valve, the throttling valve being controlled by acceleration-sensing means using a mass that is movable in the axial direction of the telescopic element and that is associated with a rated spring. The means is organized to cause the throttling valve to open as soon as the sensed acceleration exceeds a threshold which is predetermined as a function of the system to be protected, the acceleration of the system thus being kept below the threshold by the telescopic element changing in length.

REFERENCES:
patent: 1281079 (1918-10-01), Sears
patent: 1492328 (1921-09-01), Lang
patent: 1526169 (1925-02-01), Melchior
patent: 2329803 (1943-09-01), Whisler, Jr.
patent: 2375377 (1945-05-01), Mitereff
patent: 3633966 (1972-01-01), Epple et al.
patent: 4898264 (1990-02-01), Miller
patent: 5271314 (1993-12-01), Derrien
patent: 5462140 (1995-10-01), Cazort et al.
Patent Abstracts Of Japan vol. 17, No. 541(M-1488) 29 Sep. 1993 & JP-A-05 147 892 (Hitachi Juki Seizo) 15 Juin 1993.

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