Reciprocating table
CA 2116893 C · Owner: Longford Equipment International Limited · Inventors: Long, John A.; Loben, Rudy E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reciprocating table has a cam follower in the nature of an elongate slot extending transversely of the reciprocating path of the table. This slot receives a cam which is eccentrically mounted on a cam support wheel. The angular position of the cam support wheel is monitored by a rotary encoder and the cam wheel is driven by a bi- directional motor under microprocessor control. The microprocessor controls the motion of the cam such that an angular quadrant centred about the position of the cam defining the most extended position of the table is not used since the table is relatively insensitive to the motion of the cam within this quadrant. In contrast the opposite quadrant extending about …
Read the whole patent
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 March 3, 1994 and granted September 3, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 3, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2016.
- 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
Timeline From CIPO dates
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.