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. 06, 2012
Filed:
May. 25, 2011
Stephen Paul Hunter, Bristol, GB;
Geoffrey Mcfarland, Wotton-under-Edge, GB;
Kevyn Barry Jonas, Bristol, GB;
Khaled Mamour, Bristol, GB;
Stephen Paul Hunter, Bristol, GB;
Geoffrey McFarland, Wotton-under-Edge, GB;
Kevyn Barry Jonas, Bristol, GB;
Khaled Mamour, Bristol, GB;
Renishaw PLC, Wotton-Under-Edge, GB;
Abstract
A method and apparatus for measuring a surface using a surface sensing device mounted on a scanning head on a member of a coordinate positioning apparatus. The coordinate positioning apparatus may be operated to produce relative movement between the scanning head and the surface profile and the scanning head includes a drive for producing rotational movement of the surface sensing probe about one or more axis. The coordinate positioning apparatus is driven to provide relative movement between the member and the surface profile in a circular path and the scanning head is driven to move the surface sensing device about said one or more axes, such that the surface sensing device maintains a nominally constant lead angle. The motion of the coordinate positioning apparatus and scanning head is synchronous.