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.

Date of Patent:
Dec. 15, 1992

Filed:

Oct. 04, 1991
Applicant:
Inventors:

Aiden R Dear, Stotfold, GB;

Terence Gilbert, Welwyn Garden City, GB;

Assignee:

Avdel Systems Limited, Welwyn Garden City, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21J / ;
U.S. Cl.
CPC ...
227 55 ; 227 62 ; 29243521 ; 29243522 ; 298125 ; 723916 ;
Abstract

A nosepiece assembly for a blind pull-through riveting tool has long nosepiece jaws (11a, 11a) for access into deep, narrow cavities. The inside of the nosepiece assembly is provided with a device for locking the jaws together at least when a rivet is being installed. The locking device includes a frusto-conical locking face (35) on the front end of a tube (34) fixed to the tool barrel (18), co-operating with two half frusto-conical faces on the inside of the jaws. The locking faces are normally urged out of engagement by the spring (20) and are urged into locking engagement by the rearwards axial force exerted on the jaw anvil (25) by the head (33) of the rivet being installed. In a modification, the spring (20) normally urges the locking faces (35, 36) into engagement, and they are urged out of engagement by the next rivet being fed forwardly through the anvil parts (13, 13).


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