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. 09, 2017
Filed:
Mar. 27, 2015
Mathread Inc., Wixom, MI (US);
Michael Garver, Brighton, MI (US);
MATHREAD INC., Wixom, MI (US);
Abstract
An anti-false threading fastener system comprising: a female fastener member comprising: at least one female fastening thread formed in an interior of the female fastener member; at least one female lead thread formed in the interior of the female fastener member; a male fastener member comprising: a shank that has a lead end for insertion into the interior of the female fastener member; at least one male fastening thread formed on the exterior of the shank as a plurality of thread windings adapted to mate with the female fastening thread; at least one male lead thread formed on the exterior of the shank at the lead end that is at least a half winding around the shank and comprises a curved profile defined by an arc having a radius approximately equal to a radius of an arc that is tangent to both flanks of a thread profile of the at least one male fastening thread and below the pitch line of the at least one male fastening thread.