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:
Nov. 19, 2002
Filed:
Oct. 11, 2000
Applicant:
Inventors:
James R Henshaw, Stroud, GB;
Thomas J Stickland, Quedgeley, GB;
Assignee:
Renishaw, PLC, Gloucestershire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 7/28 ; G01D 2/100 ;
U.S. Cl.
CPC ...
G01B 7/28 ; G01D 2/100 ;
Abstract
A rotary ring for use in scale reading apparatus has a scale on its outer circumference and is mounted on a rotary shaft To reduce error caused by the rotary ring not sitting concentrically on the rotary shaft the inner circumference of the rotary ring and the outer circumference of the shaft are both tapered. To compensate for eccentricity of the shaft, mounting screws are provided in holes on the rotary ring to adjust the position of the rotary ring until it is concentric with the axis of rotation of the shaft.