The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 30, 1978

Filed:

Jun. 03, 1977
Applicant:
Inventors:

Goro Urushiyama, Ooi, JA;

Noriyuki Takahashi, Tokyo, JA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F / ;
U.S. Cl.
CPC ...
267 / ; 92 94 ; 138 30 ; 220 / ; 2223865 ; 280708 ;
Abstract

A diaphragm arranged in a rigid casing to define therein a chamber to be filled with a mass of gaseous spring medium and another chamber to be held under oil pressure load is normally bulged into the oil chamber and formed on both surfaces thereof with dense clusters of elastic piles or projections which are compressed against each other only when the diaphragm is displaced from its neutral position to the load side as the load is reduced. Such displacement of the diaphragm is resisted by the elastic projections so as to increase the spring constant of the device in the lower load region and, with the device, used as a spring for automotive suspension, the pitching and rolling movements of the vehicle body are minimized.


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