Patents Assigned to Professional Tape Converters, Inc.
  • Patent number: 4797956
    Abstract: An eye shield adapted for use either singly or in combination with a protective face mask. The eye shield includes a flexible transparent material which is generally flat in shape. A moldable stiffener is attached to the bottom edge of the transparent material and permits the transparent material to be molded to conform to the wearers nose and cheeks. Means for spacing the transparent material away from the wearer's eyes is attached to the upper edge of the transparent material opposite the moldable stiffener. A single elastic head band, attached to the other two sides of the transparent material, draws the eye shield closely against the face. Whe used in combination with a protective face mask, the bottom edge of the eye shield overlaps the face mask and provides a shingling effect which keeps any harmful fluids or debris on the outer surfaces of the eye shield and face mask.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: January 17, 1989
    Assignee: Professional Tape Converters, Inc.
    Inventor: Elvin L. Boyce
  • Patent number: 4688566
    Abstract: A filter mask for filtering air inhaled and exhaled from the mouth and nostrils while providing a positive facial lock at all edges of the mask. In a preferred embodiment of the invention both the upper and lower edges of the mask are provided with moldable stiffeners for conforming to the shape of the wearer's nose and cheek area and the lower jaw and chin area, respectively. The lower edge is folded so as to form a reverse pleat which conforms to the shape of the lower jaw. A single headband may be used to hold the mask on the head. The peripheral edges of the mask are bound. The mask provides excellent filtration since the positive facial lock around all edges of the mask substantially prevents air from leaking between the mask and the face.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: August 25, 1987
    Assignee: Professional Tape Converters, Inc.
    Inventor: Elvin L. Boyce