Way bearing arrangement for a horizontal arm coordinate measuring machine
CA 2000494 C · Owner: Hemmelgarn, Thomas Leo · Inventors: Raleigh, Freddie Lewis; Hemmelgarn, Thomas Leo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
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) (178a,b; 180a,b; 182a,b; 184a,b; 204a,b), and for the probe shaft (186) (188a,b; l90a,b; 192a,b; 194a,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 …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 11, 1989 and granted May 31, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 11, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.