Patents Assigned to Rockwell Valve Corporation
  • Tamper resistant and tamper indicating closure
    Patent number: 4738375
    Abstract: A typical dust cover for aerosol cans is improved to be more tamper resistant and tamper indicating by adding a specialized tearoff strip. This new combination of dust cover with depending and tight fitting tearoff strip is unitary, has latching lug means as part of both the skirt of the dust cover and the upper edge of the tearoff strip for latching under the valve mounting cups of the can, inhibits the normal camming lever arm, and when the tearoff strip is removed there remains a visually prominent, sinuous bottom edge to the dust cover.
    Type: Grant
    Filed: August 19, 1986
    Date of Patent: April 19, 1988
    Assignee: Rockwell Valve Corporation
    Inventors: Joseph L. Rosen, Dale M. Metcoff