Trigger type liquid dispenser
CA 1291971 C · Owner: Tasaki, Takaharu · Inventors: Tasaki, Takaharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A trigger type liquid dispenser having a nozzle unit including a nozzle at its front end a pump, operated by a trigger and a container mount in which, the pump is operated by the trigger and has an annular cylinder including concentric outer and inner cylindrical members of double wall shape projected forwardly of a body, and a piston unit telescoped in the annular cylinder and having an annular piston sliding on the inner surface of the outer cylindrical member and the outer surface of the inner cylindrical member the, piston unit having skirts annularly flared at the axial edges of the sliding surfaces as the sliding surfaces of the piston unit with the surface of the inner and outer …
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 November 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 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.