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. 07, 1992
Filed:
Jun. 01, 1990
Brian D Sowards, Mocksville, NC (US);
Ingersoll-Rand Company, Woodcliff Lake, NJ (US);
Abstract
An apparatus includes a compressor having a rotor portion, an inlet and a discharge. A motor portion of the apparatus has an intake manifold connected to the discharge. A throttle is displaceable between an open and a closed position for controlling fluid flow between the discharge and the intake manifold. A bypass return line connects the rotor portion of the compressor to the inlet. A piston valve, movable between an open location and a closed location, controls flow through the bypass return line. A control line, connecting the intake manifold to the piston valve, controls the location of the piston valve. A control valve may be included to control fluid flow through the control line. A computer, which is affected by the operation of the motor, controls the position of the control valve.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile