Staightway valve
CA 1083010 A · Owner: Kirpichenkov, Alexandr G. · Inventors: Kirpichenkov, Alexandr G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A straightway valve for a positive-displacement machine comprises a polyhedral body with outlet ports and seat surfaces on the sides thereof, flat friction-free closure plates and a means for attachment of the closure plates to the body which takes the form of a polygon-shaped plate having on its ends clamping lugs for holding the closure plates in place on the seat surfaces of the body. The polygonal plate has for, example, a bore with projections formed around the periphery thereof and engaging a blind recess in the end face of the body, thus providing for a reliable and easily removable attachment of the plate to the valve body. The valve can serve as a suction and delivery valve in …
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 August 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 1997.
- 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.