Patents by Inventor Jan Wuthrich

Jan Wuthrich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • One-way valve for a compressible container and container with such a valve
    Patent number: 10000316
    Abstract: A collapsible container is provided with a one-way valve. The valve comprises a cupola shaped slitted membrane forming a closure head to allow dispensing a liquid contained in the container by opening the membrane under liquid pressure. When pressure is reduced the membrane will close and prevent the entrance of air into the container. To avoid a deformation of the membrane in counter dispensing direction a supporting column is arranged within the valve ending in a distance from the lower side of the membrane. This column will prevent an opening of the membrane closure head towards the container storage room when air pressure in direction into the container is too high to be borne by the membrane closure head alone.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: June 19, 2018
    Assignee: HOFFMAN NEOPAC AG
    Inventors: Andreas Geiger, Jan Wuthrich
  • ONE-WAY VALVE FOR A COMPRESSIBLE CONTAINER AND CONTAINER WITH SUCH A VALVE
    Publication number: 20170066563
    Abstract: A collapsible container is provided with a one-way valve. The valve comprises a cupola shaped slitted membrane forming a closure head to allow dispensing a liquid contained in the container by opening the membrane under liquid pressure. When pressure is reduced the membrane will close and prevent the entrance of air into the container. To avoid a deformation of the membrane in counter dispensing direction a supporting column is arranged within the valve ending in a distance from the lower side of the membrane. This column will prevent an opening of the membrane closure head towards the container storage room when air pressure in direction into the container is too high to be borne by the membrane closure head alone.
    Type: Application
    Filed: March 19, 2014
    Publication date: March 9, 2017
    Inventors: Andreas Geiger, Jan Wuthrich