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:
Nov. 22, 2005
Filed:
Oct. 17, 2000
Lindsey Jack Roke, Auckland, NZ;
Ian Campbell Mcgill, Auckland, NZ;
Gerald David Duncan, Auckland, NZ;
William George Ferguson, Auckland, NZ;
Andrew Paul Taylor, Auckland, NZ;
Lindsey Jack Roke, Auckland, NZ;
Ian Campbell McGill, Auckland, NZ;
Gerald David Duncan, Auckland, NZ;
William George Ferguson, Auckland, NZ;
Andrew Paul Taylor, Auckland, NZ;
Fisher & Paykel Appliances Limited, Auckland, NZ;
Abstract
A linear abstract includes a cylinder part and a piston part. A spring connects the cylinder part and the piston part and operates in the direction of reciprocation of the piston part relative to the cylinder part. The piston part includes a radially compliant but axially stiff linkage and a piston. The cylinder part includes a cylinder and a cylinder liner therewithin. A bore runs through the cylinder liner and the piston reciprocates in the bore. Gas bearing passages are formed between the cylinder and the cylinder liner leading to openings through the wall of the cylinder liner to the bore. A gas bearing manifold receives compressed gases and supplies the compressed gases to the gas bearing passages. The gas bearing passages follow a tortuous path to the openings.