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:
Apr. 05, 1994
Filed:
Jun. 15, 1993
Applicant:
Inventors:
Gerard J Schorn, Southampton, PA (US);
James R Hunter, Chadds Ford, PA (US);
Assignee:
Murata Machinery, Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B26D / ; G06F / ;
U.S. Cl.
CPC ...
83 13 ; 83 74 ; 83639100 ; 72 21 ; 364474190 ; 364508 ;
Abstract
A method for controlling punch press noise in which the noise level produced is monitored by a detector and the press ram velocity is modified in real time to keep the noise level within preset limits. A time weighted average noise level is also controlled by varying the ram velocity for punching operations over a period of operation to maintain a projected time weighted average within a preset limit.