Reciprocating compressor
CA 2012776 C · Owner: Baumann, Heinz · Inventors: Baumann, Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The reciprocating compressor is made with yoke units which connect opposite pairs of pistons while eliminating play between the yoke units and sliding block. Each yoke unit includes a pair of shoes which are removably secured to the pistons and which are adapted to guide the sliding block moved by a crankshaft. Each yoke unit also includes an elastically deformable clamp ring which surrounds the shoes and which biases the shoes towards the sliding block. The shoes are removably secured to the pistons to permit the yoke unit to be readily disassembled. Bow-shaped clamping members may also be employed within each yoke unit to further bias the clamp ring against the shoes.
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 22, 1990 and granted August 24, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2012.
- 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.