Patents Assigned to Innoventa ApS
  • Pressure control unit for the control of the pressure of at least one gas depending on the pressure of another gas
    Patent number: 4254790
    Abstract: A pressure control unit comprises a central reference chamber in which the gas pressure is adjustable and one or more control chambers, each of which is separated from the reference chamber by a membrane system which consists of two interconnected membranes having a predetermined ratio of their surface areas. Each membrane system is connected to a valve for controlling the flow of a gas to the respective control chamber whereby the pressure therein varies in proportion to the reference pressure.
    Type: Grant
    Filed: August 30, 1978
    Date of Patent: March 10, 1981
    Assignee: Innoventa ApS
    Inventors: Einer Eriksson, Johannes Jensen, Jorgen S. Lundsgaard