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:
Apr. 25, 1978
Filed:
Jun. 17, 1976
Robert R Young, Franklin Borough, PA (US);
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Abstract
A rotary compressor is provided in which the space between the rotor and the encompassing housing wall is separated into suction and discharge spaces by reciprocating vane assemblies, each of which includes a blade portion having a distal end portion carrying a pivotal shoe, the joint between the shoe and blade being of cylinder and socket character with the blade end forming the cylinder part of the joint and the shoe having a socket cavity for receiving the cylinder. In other forms, the shoe has a generally channel shape in transverse cross section with the leg of the channel facing the compression side having vent holes which reduces the turning movement applied to the shoe under conditions of high differential pressures between one side of the shoe and the other. This arrangement promotes stability and reduces the possibility of loss of equilibrium of the shoe against the moving surface.