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:
Feb. 16, 1988
Filed:
Aug. 04, 1986
Applicant:
Inventor:
David W George, New Castle, PA (US);
Assignee:
Wean United, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B30B / ; B30B / ;
U.S. Cl.
CPC ...
100 46 ; 100237 ; 100 43 ; 425141 ; 425338 ;
Abstract
A press having a stationary upper bolster and a movable lower bolster carried by two outer and two inner frame plates located near the ends and center of the platens respectively. Through the use of strain gauges measuring the load on the product provided on either sides of each frame plate and servo-operated piston cylinders connected to the lower bolster controlling the output force, a deflection of the lower bolster is made to be parallel to the deflection of the upper bolster so that an equal pressure distribution results in compression therebetween thereby producing a uniform thickness in the product.