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, 2006
Filed:
May. 13, 2005
Applicant:
Thomas L. Mueller, St. Louis, MO (US);
Inventor:
Thomas L. Mueller, St. Louis, MO (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16P 3/00 (2006.01); B21D 55/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A safety interlock and retraction mechanism for all types of presses comprising a sensing or activating valve which does not apply full force to a press ram until the ram displaces to the expected work material thickness and a pneumatically operated retraction mechanism which eliminates the need for a return spring. The art differentiates between the thickness of an operator's finger relative to a work material thickness in order to promote safety. The art further provides an increased press ram force by eliminating the return spring force subtracting from the ram force.