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. 08, 1997
Filed:
May. 25, 1995
Applicant:
Inventors:
James Kralick, Albany, NY (US);
Nicholas Vitale, Watervliet, NY (US);
Assignee:
Mechanical Technology Inc., Latham, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417383 ; 4174131 ; 417395 ; 310 17 ;
Abstract
This invention involves a balanced single stage linear compressor with an oil-filled cavity to equalize pressure on the diaphragm. The oil-filled cavity further includes a volume compensating gas chamber and a passive balancer. A balance mass is attached to the bellows and is supported by a fluid film bearing. The balance mass is arranged so that the oil displaced by the piston acts on the mass and displaces the mass in a direction opposite to that of the piston thereby balancing the apparatus.