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:
Jul. 10, 1984
Filed:
Jan. 10, 1983
Dennis E Gunderson, Madison, WI (US);
Vance C Setterholm, Blue Mounds, WI (US);
Abstract
An apparatus and method of measuring edgewise compressive deformation in sheet material comprises providing a specimen beam having an inner curved layer of the sheet material to be tested, an outer curved strip spaced radially outwardly of the sheet material, an elastomeric spacer between the sheet and strip, and blocks fixing the opposite ends of the sheet material to the opposite ends of the strip. The spacer is fixed to the backing strip and engaged firmly on the outer radial surface of the sheet material. The ends of the curved specimen beam receive a pure torque which causes compression of the sheet material which can be measured. The sheet material is supported so that it does not buckle with the torque being applied by simple weights connected to rotors which in turn are engaged with the opposite ends of the specimen beam.