Patents by Inventor Rolf Litzel

Rolf Litzel 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).

  • Non-drip valve
    Patent number: 5573033
    Abstract: A non-drip valve for the discharge of liquid comprises a through-flow channel (2) from whose end the liquid emerges and at least one elastic member (12) within the through-flow channel (2) which reduces its volume when the pressure in the liquid increases and thereby frees the through-flow channel (2) and which enlarges its volume when the pressure of the liquid flow decreases and closes the through-flow channel when the pressure of the liquid flow falls below a certain pressure value.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: November 12, 1996
    Assignee: Loctite Europa EEIG
    Inventor: Rolf Litzel