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:
Jul. 30, 1991
Filed:
Oct. 16, 1990
Applicant:
Inventors:
Charles F Smart, Danbury, CT (US);
Anthony D'Aquila, Trumbull, CT (US);
Assignee:
Emhart Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21J / ; B21J / ;
U.S. Cl.
CPC ...
227-2 ; 227-3 ; 227112 ;
Abstract
A vacuum pulls a spent mandrel through a gun bore and into a collection tube which discharges into a collector. Gun operation and mandrel entry into and departure from the collection tube are sensed and blockage of the mandrel within the collection tube and the jamming of the mandrel in the rivet gun are determined and signalled to the operator. The cycle immediately continues when the mandrel is cleared.