Patents by Inventor Ralph C. Daehn

Ralph C. Daehn 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).

  • Pressurized container
    Patent number: 5513767
    Abstract: The invention relates to an improved pressurized container, such as an aerosol can, which has crimping and welding of the top wall to the side wall, and which can withstand internal pressurization exceeding 400 psi and as high as 450 psi. The containers have continuous or interrupted reinforcing welding and also a notch or weakened area in the side wall to thereby direct the location of the controlled venting. In this manner, a safe, non-explosive venting of the container can occur.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: May 7, 1996
    Assignees: Materials Engineering Inc., Ray Van Thyne, Christian Kinkel
    Inventor: Ralph C. Daehn
  • Aerosol container with pressure release structure
    Patent number: 5249701
    Abstract: The container comprises a tubular side wall and two end walls joined to the ends thereof by a double-seam construction. A plurality of interrupted welds are provided at the joint between one end wall and the adjacent end of the side wall.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: October 5, 1993
    Assignees: Ray J. Van Thyne, Christian F. Kinkel & Materials Engineering, Inc.
    Inventor: Ralph C. Daehn