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. 03, 1985

Filed:

Apr. 27, 1983
Applicant:
Inventor:

David M Hansen, Doylestown, PA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21J / ;
U.S. Cl.
CPC ...
72451 ; 83554 ;
Abstract

A press for assembling a fastener or the like to a plate or the like comprises a frame and an anvil assembly carried by the frame. A linkage mechanism assembly is carried by the frame and includes two links. A ram assembly is operatively connectable to one of the two links. A first fluid operated cylinder and piston assembly holds the ram assembly in a raised position. A first switch terminates the flow of fluid to the first cylinder, thereby permitting the ram assembly to drop. A second fluid switch is activated after a sufficient drop of said piston to energize a second fluid operated cylinder and piston assembly for extending and retracting said links, and thereby move one of said links into force transmitting relationship with said ram assembly, to thereby cause said ram assembly to move forcefully down toward the fastener for the purpose of installing the fastener into the plate.


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