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:
Aug. 09, 1988
Filed:
Mar. 03, 1986
James C Tischer, La Crescent, MN (US);
American Standard Inc., New York, NY (US);
Abstract
A body located downstream of the compressor discharge port in an oil-injected screw compressor assembly includes a contoured surface for directing the flow of the gas-oil mixture discharged from the compressor. The body is movable in the compressor assembly between a first position in which the flow of the mixture out of the discharge port is unimpeded and a second position in which the backflow of gas from downstream of the discharge port back into and through the working chamber of the compressor is prevented. In the first position the body facilitates the separation of oil from the discharged compressed gas while in the second position the reverse direction rotation of the screw rotors in the compressor working chamber is prevented. The body is positionable to the first position under the impetus of the mixture discharged from the compressor and is positionable to the second position under the impetus of the initial backflow of gas from downstream of the compressor, back to the compressor, which occurs upon compressor shutdown.