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:
Dec. 19, 1989
Filed:
May. 30, 1989
Thomas L Hemmelgarn, Dayton, OH (US);
Freddie L Raleigh, Centerville, OH (US);
The Warner & Swasey Company, Cleveland, OH (US);
Abstract
A bearing arrangement for a coordinate measuring machine having a horizontal probe arm assembly (16) extending to the front of the machine and supported for movement along X,Y, and Z orthogonal axes. The bearing arrangement comprised of opposing sets of supporting or guiding and preloading air bearings (48a,b; 46a,b; 66a,b; 64a,b; 76a,b; 78a,b) for the X carriage (40), the YZ carriage (17) (17a,b; 180a,b; 182a,b; 184a,b; 204a,b), and for the probe shaft (186) (188a,b; 190a,b; 192a,b194a,b). The air bearings each ride on way surfaces formed on the base (12) a column member 160, and the probe shaft (186) and are arranged to most efficiently distribute the load and minimize the effects of inaccuracies in the way surfaces, and make more efficient the accurate machining of the way surfaces.