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. 04, 1995
Filed:
May. 18, 1994
Applicant:
Inventors:
Lawrence E Weinert, Antioch, CA (US);
William C Glass, Junction City, OR (US);
Assignee:
James River Paper Company, Inc., Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 82 ; 73 / ;
Abstract
An apparatus and method for measuring the firmness of a paper roll product. The roll product is mounted on a spindle and a plunger is lowered into engagement with the outer peripheral surface of the roll product. A motion detector detects the distance the plunger moves into the roll product under the weight of the plunger and data based on this distance is displayed for viewing by the operator. Calibrating gauges are employed prior to measurement to ensure that a zero reading on the display corresponds to the point at which the plunger initially contacts the roll product outer surface.