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:
Oct. 03, 2000
Filed:
Nov. 11, 1998
James M Bradbury, Waterbury, CT (US);
David J Banducci, Guilford, CT (US);
David S Calkins, Branford, CT (US);
John O'Hara, Seymour, CT (US);
Peter Thomas, Chesine, CT (US);
Emhart Inc., Newark, DE (US);
Abstract
A rivet delivery device is provided for transferring a rivet from a rivet passage to a nose piece of a pulling head and jaw case mechanism. The rivet delivery device is air driven to extend forwardly of the rivet setting tool and rotates to present a rivet in front of the jaws and then transfers the rivet into the jaws. The angular rotation and stroke length of the rivet delivery device can be easily adjusted. A double-acting piston is driven in both directions by positive air pressure to extend and rotate the delivery device in front of the nose piece and returning the rivet delivery device after rivet transfer. The use of a double-acting piston greatly enhances the speed at which the, rivet delivery device can operate.