Patents Assigned to COMETFLO LTD.
  • Patent number: 11280420
    Abstract: A normally closed valve according to the invention comprises a closure delay system utilizing the effect of vacuum on a flexible suction cup to generate a force that keeps the valve open when in an open orientation for a preset time period. The valve further comprises a closure delay mechanism including an actuator shaft and a suction cup disposed in a cavity, being configured for downward reciprocating movement, wherein the suction cup engages the cavity top wall when the valve is in closed orientation thereby closing the valve, and adhering to a suction surface of the cavity when the actuator shaft moves under pressure for switching the valve from closed to open orientation thereby opening the valve. The suction cup automatically disengages the suction surface a preset time period after pressure ceases to be applied to the actuator shaft and reengages the cavity top wall thereby closing the valve.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: March 22, 2022
    Assignee: COMETFLO LTD.
    Inventors: Yoseph Feldman, Emanuel Mendes
  • Patent number: 10942532
    Abstract: A confined, fully or partially liquid-filled container having at least one flexible wall, utilizing the effect of gravity on liquid in the container to generate a force that acts on an actuator mechanism to operate a normally-closed control valve. In preferred embodiments, the container is a simple sealed bag partially liquid-filled and air-free. The flexible-walled container contains a predetermined quantity of liquid. The bag is confined by walls of a housing formed of a non-flexible material, and is affixed to the housing preferably to an upper wall of the housing in any conventional way. The housing is disposed in a vessel for holding a liquid and is having one or more apertures, which are in fluid communication with the interior of the vessel and through which liquid can enter from the vessel into the housing to a level corresponding to a desired level of liquid in the vessel.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: March 9, 2021
    Assignee: COMETFLO LTD.
    Inventors: Yoseph Feldman, Emanuel Mendes