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.
Patent No.:
Date of Patent:
Apr. 06, 1993
Filed:
Jul. 30, 1992
Applicant:
Inventor:
Philip Marshall, Lexington, MA (US);
Assignee:
M/RAD Corporation, Woburn, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F / ; F16F / ;
U.S. Cl.
CPC ...
267 6425 ; 267 6426 ; 267 6419 ; 267136 ; 267 6428 ; 248619 ; 248631 ;
Abstract
An active vibration isolation system which has three groups of airbag springs for supporting a load and isolating the load from vibration, together with a servo-valve system for admitting pressurized air to or exhausting pressurized air from each group of the airbag springs, and a damping system for damping movement of the load. The damping system comprises a plurality of pairs of shock absorbers which are mounted in parallel with and adjacent to the airbag springs. The shock absorbers are arranged so as to provide damping for each of the groups of airbag springs in three mutually-orthogonal directions.