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. 12, 2014
Filed:
Jun. 16, 2008
Applicant:
Timothy Keene Heimonen, LaGrange, MO (US);
Inventor:
Timothy Keene Heimonen, LaGrange, MO (US);
Assignee:
Gardner Denver, Inc., Quincy, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04C 18/16 (2006.01); F04C 28/06 (2006.01); F04C 28/16 (2006.01); F04C 28/26 (2006.01); F04C 28/12 (2006.01); F04C 29/12 (2006.01);
U.S. Cl.
CPC ...
F04C 18/16 (2013.01); F04C 28/16 (2013.01); F04C 29/126 (2013.01); F04C 28/26 (2013.01); F04C 28/06 (2013.01); F04C 28/12 (2013.01);
Abstract
A twin screw compressor has a working chamber bypass that is used at start-up of the compressor. This system provides pressure relief by allowing oil or other fluid to pass through it. The bypass includes a fluid passage that extends from the working chamber to the discharge port with a one way valve disposed inside the passage.