Patent Yard Sign in
Expired Canadian patentCanada

Rotary flow control apparatus

CA 1264640 C · Owner: Yankoff, Gerald K. · Inventors: Yankoff, Gerald K.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Rotary Flow Control Apparatus, Abstract of the Disclosure A flow control apparatus for selectively directing fluid from a fluid supply line to a number of outlet lines includes an outer member having an outer wall, a throughbore forming an annular inner wall and a plurality of spaced, discharge bores formed therebetween. An inner member having an annular outer wall is received within the throughbore of the outer member so that their annular walls face one another. The outer member is rotatable with respect to the inner member to selectively align each of its discharge bores with the fluid passageway of the inner member, and an interlock mechanism is provided to ensure accurate alignment …

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 January 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 5, 1986
GrantedJanuary 23, 1990
Term endedJanuary 23, 2007
Patent numberCA 1264640 C
Classification (IPC)F16K11/06 +1 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedSep 5, 1986Patent grantedJan 23, 1990Term endedJan 23, 2007

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.