Control unit for intermittent suction system
CA 1303930 C · Owner: Boc Health Care, Inc. · Inventors: Hodge, Colin G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An intermittent suction regulator is disclosed operating from a vacuum system and is used to provide a plurality of pneumatic output signals to a positive pulse device for returning fluids removed from a patient during drainage thereof to clear the removal passageways. The suction regulator or control unit provides two (2) timed output signals from one, (1) intermittent vacuum to atmospheric pressure input. One, output signal continually switches from a regulated vacuum signal to an atmospheric pressure signal while the other output signal switches from providing an unregulated vacuum signal to an atmospheric pressure signal. The signals are timed such that both are initially set to provide …
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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 June 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 2009.
- 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.