Apparatus for measurement and control, respectively, of temperature and/or pressure
CA 2073684 C · Owner: Tour & Andersson Ab · Inventors: Marstorp, Leif; Glansk, Leif
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combined control and regulating valve (1) having a housing (2) with an inlet (3) and an outlet (4) as well as a partition (5) between said inlet and outlet and having a seat (6) designed for an interaction with a main valve body (7) which is, adjustable from outside. Said inlet and said outlet are connected to one measuring nipple each (31-39 and 41-49 respectively) for the measurement and the control of temperature and/or pressure. One of the measuring nipples (41-49) is designed as a multiple function nipple (50) having a cutt-off-function designed to interact with a seat (53) in a passage (40), which receives said nipple. In a housing neck (55) which encloses said nipple, are access …
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
- Filed January 15, 1991 and granted December 30, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2013.
- 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.