Patents Assigned to Vitol Signs, Inc.
  • Mask, mask shell and seal with improved mounting, mask seal, method of mask manufacture and mask with reduced exhalation noise
    Patent number: 7353827
    Abstract: Mask seal having an embedded mounting member for engaging a mounting member on a mask shell to mount the seal and shell together. Headstrap retention bracket having an indentation for wedgedly engaging a mask shell cylinder to removably mount headstraps to the shell, the indentation circumscribed by an outward wall. Triangular mask seal of styrene-ethylene butylene-styrene copolymer modified with mineral oil.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: April 8, 2008
    Assignee: Vitol Signs, Inc.
    Inventor: Leroy D. Geist