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. 19, 1999
Filed:
Jun. 04, 1998
Applicant:
Inventor:
Gerald R Pruitt, San Pedro, CA (US);
Assignee:
Raytheon Company, Lexington, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
F01B / ;
U.S. Cl.
CPC ...
60520 ; 92187 ;
Abstract
A driven armature cylinder and piston link with reduced side loads and cross-bearing loads which uses a pin inserted through a dual coaxial tapered through bore in the drive piston to secure a drive piston to a displacer or compressor module cylinder, as applicable to Stirling cycle cryocoolers. Another embodiment is a method of coupling a piston to an armature cylinder with a linkage pin inserted through a dual coaxial tapered through bore to assure that the impact forces between the linkage pin and the drive piston occur at the centerline of the drive piston for centered loading and reduction of side and cross-bearing loads.