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:
Nov. 03, 1981

Filed:

May. 29, 1980
Applicant:
Inventors:

John F Stroup, Cuyahoga Falls, OH (US);

Leonard P Nypaver, Westlake, OH (US);

Dale S Eberst, Strongsville, OH (US);

Assignee:

Van Dorn Company, Strongsville, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
7386253 ; 7386254 ; 7386258 ;
Abstract

Apparatus is disclosed for indicating the final tonnage produced by a press having a toggle mechanism actuated by a closing means. The apparatus comprises means for measuring the closing force exerted on the toggle mechanism by the closing means, means for detecting the initial peak closing force measured by the measuring means, means for converting the initial peak closing force to a final press tonnage value preferably using a proportional relationship, and means for outputting the final press tonnage value. In addition, the apparatus may include switch means for disconnecting the measuring means from the detecting means after the detecting means has detected the initial peak closing force. The apparatus is easily adaptable to most presses having toggle mechanisms such as those used in injection molding machines, and may be used to provide an accurate tonnage indication without the necessity of directly measuring tonnage such as by mounting strain gages on the tie bars.


Find Patent Forward Citations

Stroup, John. (1981). Tonnage indicator for toggle press (U.S. Patent No. 4297901). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4297901

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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