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. 24, 1977
Filed:
Mar. 08, 1976
Robert C Prisco, Anaheim, CA (US);
Paul D Myers, Fullerton, CA (US);
Microdot, Inc., Greenwich, CT (US);
Abstract
A co-axial, dual trigger valve mechanism for use in a nut runner, said valve mechanism being of such a construction as to permit low air flow initially so as to deliver only minimum acceptable torque to the nut with the result that the tool is caused to stall out at this low flow in cases where the nut has been properly pre-crimped and then upon further depression of the trigger full air flow will result causing the nut to be fully and properly installed. Conversely, if the nut has not been properly pre-crimped, the initial depression at the low pressure will cause the nut to be fully run all the way down thus indicating to the operator that the nut is improper and must be removed and replaced.