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:
Dec. 24, 1991
Filed:
Aug. 16, 1990
James M Jones, Dayton, OH (US);
Production Control Units, Inc., Dayton, OH (US);
Abstract
One end section of a three section tubular coupling body is connected to a flexible hose, and the opposite end section supports a manually actuated coupler for releasably locking the body to a valve fitting of an air conditioning or refrigeration system. A valve member is supported within the body for axial movement between an extended open position and a retracted closed position. In its extended position, the valve member opens a valve stem within the fitting and opens a flow valve within the body. In its retracted position, the valve member closes the fitting valve and the flow valve. A manually actuated lever is connected by rotary cam members to move the valve member and is effective to block disconnection of the coupler when the valve member is in its extended open position and to lock the valve member in its retracted closed position.