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:
Jan. 29, 1980
Filed:
Sep. 25, 1978
Applicant:
Inventor:
Donald A Calleson, Durham, NC (US);
Assignee:
Liggett Group Inc., , US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01B / ;
U.S. Cl.
CPC ...
3317 / ;
Abstract
The hand held measuring device measures the circumference of a cylindrical rod by moving the rod through a measured path between two cylinders. An ink marking device is used to place an index mark on the rolling rod and a transparent scale is used at the end of the measured surface of the outer cylinder to indicate the distance the rod has travelled. Coincidence of the index mark with the scale reading is a measure of the circumference of the rod. The device is operated manually via a hand wheel secured to a trunnion of the inner cylinder.