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. 03, 1979
Filed:
Sep. 12, 1977
John M Tovey, Circle Pines, MN (US);
National Can Corporation, Chicago, IL (US);
Abstract
An internal diameter gauge for measuring thin wall containers is disclosed herein. The gauge includes a pair of mandrel halves that are supported between a shaft and a housing with cooperating camming surfaces on the mandrel halves, the housing and the shaft which move the peripheral semi-circular surfaces of the mandrel halves radially. The camming surfaces on the housing and shaft are biased toward each other through a biasing mechanism between the shaft and the housing while the mandrel halves are biased toward each other through a further biasing mechanism and a handle cooperates with the shaft to displace the shaft and allow the mandrel halves to contract.