Pressure controller
CA 1323263 C · Owner: Schild, Rolf · Inventors: Schild, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pressure Controller A pressure controller for controlling fluid pressure in an alternating pressure pad which comprises means (4) sensitive to the fluid pressure and adapted to open a valve (15) when the pressure exceeds a predetermined value, fluid supply means (8) connected at one end to said valve (15) and at the other end being adapted for connection to a pump (6) for inflating the pad, the fluid supply means (8) being arranged, in use, to receive pressure exerted by a patient on the pad and to be compressible in dependence upon the pressure exerted by the patient to reduce the escape of fluid from the valve (15) when the valve (15) is open. Thereby, causing a proportion of fluid to …
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 October 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 19, 2010.
- 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.