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:
Nov. 30, 2004
Filed:
Aug. 06, 2002
David A. Giardino, Rock Hill, SC (US);
Chicago Pneumatic Tool Company, Rock Hill, SC (US);
Abstract
The invention comprises a power impact torque tool that is torque-limited by a novel torque-timing device that controls the amount of time that the tool motor operates after the operator initiates tool operation. The invention also includes the torque-timing device itself and with other tools. The invention further includes the torque-timing device in the form of a modular, releasably-attachable, user-adjustable control apparatus for tools powered by compressable fluids. The torque-time-limiting device allows the user to adjust a needle valve that controls the filling of a reservoir which, when full, provides the pressure required for actuating a shut-off valve.