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:
Jul. 06, 1999
Filed:
Apr. 16, 1997
Peter G Nelson, Newburyport, MA (US);
Technical Manufacturing Corporation, Peabody, MA (US);
Abstract
A pneumatic isolator supports a payload and dampens the vertical and/or horizontal motion of the payload. The isolator has an air chamber and a damping chamber. A viscous medium is disposed in the damping chamber. A gimbal piston head is flexibly secured to the isolator and a piston well extends downwardly from the piston head and is immersed in the viscous medium. A support rod supports the payload, passes through and is supported by the piston well. The outer surface of the piston well is spaced apart from the opposed surface of the damping chamber and defines a gap therebetween. When horizontal and/or vertical motion acts on the isolator, the piston well moves displacing the viscous medium in the gap resulting in a damping force which is generally proportional and opposite to the velocity of the piston well moving against the viscous medium.