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:
Oct. 05, 1993
Filed:
Jan. 30, 1991
Lawrence P Davis, Phoenix, AZ (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
A vibration absorbing damper of the viscous type having an outer cylinder enclosing a damping member with the damping member positioned for axial movement within the outer cylinder while retaining a hermetic seal without the use of gaskets or seals. The damping member is comprised of a pair of arcuate structures with high volumetric rigidity and joined axially by a nonelastomeric member. A fluid-retaining reservoir is deformed by forces applied to the exterior cylinder, resulting in deformation of the arcuate structure and resulting compression or extension of the fluid reservoir. Excess fluid is forced into a bellows through a restricting orifice for storage during compression stresses, and returned from the bellows to the fluid reservoir during extension of the outer cylinder during cyclical vibration. The damper operates with deflections as small as 1 microinch and provides a large actuating force, even though the motion is very small. By virtue of the hermetically-sealed structure and freedom from gaskets and seals in the operating mechanism, the damper is particularly suited for space satellite applications and high performance, lightweight truss structures.