System for controlling the operation of a reciprocating device
CA 1290979 C · Owner: Amoco Corporation · Inventors: Blake, William R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system is disclosed for controlling the operation of a reciprocating device, such as a reciprocating fluid pump, utilized within a small diameter wellbore logging tool. The system includes a pump having an input in fluid communication with the source fluid a 4-way sliding, valve in fluid communication with an output of the pump for controlling the flow of fluid to operate the reciprocating device, and a 4-way control valve in fluid communication with the output of the pump for controlling the flow of fluid to operate the sliding valve. SHB:go/pt 87135ART0016
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
- Granted October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
- 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.