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Class Information
Number: 188/301
Name: Brakes > Internal-resistance motion retarder > Having a thrust member with a variable volume chamber (e.g., coaxial or telescoping tubes, compensating reservoir) > Causing air suction in chamber
Description: Device wherein said fluid is gaseous atmosphere, and movement of said member within said container generates a subnormal atmospheric pressure in said container.

Patents under this class:

Patent Number Title Of Patent Date Issued
7021434 Self-pumping hydropneumatic suspension strut Apr. 4, 2006
6547045 Shock absorber Apr. 15, 2003
6412616 Energy dissipation system Jul. 2, 2002
6079725 Folding wheelchair with improved suspension system Jun. 27, 2000
4973025 Metering valve Nov. 27, 1990
4877226 Fluid shock absorber constructions Oct. 31, 1989
4776440 Shock absorber with resiliently biased adjustment piston Oct. 11, 1988

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