Dripless coupler
CA 1183561 A · Owner: Deere & Company · Inventors: Shindelar, Aloysius C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A dripless coupler containing a female and a male coupler the female coupler retained within a housing. The female coupler includes a receptacle enclosing a cavity having an inlet port, an outlet port and an open bore located at one end thereof. Positioned between the receptacle and the open bore is a movable seat which mates with a flat smooth end surface of the main poppet valve which is retained within the cavity. The main poppet valve is normally biased to a closed position against the movable seat. Insertable into the open bore of the female coupler is the male coupler which includes a receptacle enclosing a cavity with an inlet opening. Positioned within the …
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 March 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 2002.
- 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.