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:
May. 22, 1979
Filed:
Sep. 15, 1976
Raymond H Devanney, Winsted, CT (US);
Other;
Abstract
A torque tool has a shaft which is driven by an input motor to transmit torque through an output gear. Reactive torque generated in reaction to the output torque is transmitted through a floating reaction ring gear to a brake assembly by means connecting the floating or rotatable ring gear to the brake assembly. The brake assembly is retained against rotation by resilient spring means of a preselected rotation resistance strength. Upon attainment of a preselected output torque and concomitant reactive torque, the brake assembly is shifted against the resistance offered by the springs so that the brake assembly contacts and brakes the shaft to limit the torque transmitted thereby. The means connecting the rotating ring gear to the brake assembly may include additional gear means designed to take up a portion of the reactive torque so that only a preselected balance of the total reactive torque is available to overcome the resistance offered by the resilient springs.