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. 16, 1978
Filed:
Sep. 27, 1976
Lloyd S Binns, Fountain Valley, CA (US);
Other;
Abstract
In this blind rivet, the sleeve is counterbored from the rear end, and has interior axial splines forward of the counterbore. The bulb-forming lugs project laterally from a shoulder portion of the mandrel that has a diameter sufficiently great to collapse the sleeve splines during rivet installation. Between the bulb-forming lugs and the mandrel blind end are a set of annular flutes in the mandrel. During rivet installation these flutes urge radial expansion of the sleeve counterbore region to assist hole filling. The sleeve may include a lock-collar-guiding counterbore having an annular convex region providing a locking collar entry resistance surface effective during the initial phase of rivet installation.