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:
Jun. 21, 1988
Filed:
Apr. 12, 1985
John D Pratt, Rancho Cucamonga, CA (US);
Monogram Industries, Inc., Providence, RI (US);
Abstract
A blind fastener comprising: a nut with an axial bore therethrough, a bolt extending through the nut with a sleeve encircling the bolt between the head of the bolt and the nut body, and a stop ring provided on a screw threaded portion of the bolt, the bolt having a break groove therein, between the nut body and the bolt head. As the bolt is advanced upwardly during installation, the stop ring abuts the terminal end of the nut body. This sudden resistance to further travel causes the screw threaded portion to fracture at the break groove thus providing a clean break at the break groove substantially filling a cavity in the nut head thereby increasing the strength of the installed fastener and eliminating any need for shaving off the broken-off screw threaded portion.