Patents by Inventor Fred D. Marvel

Fred D. Marvel 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).

  • Patent number: 4859274
    Abstract: A packet-type laminating machine for laminating a flat object between two sheets of protective plastic film, comprising a pair of closely spaced heating platens with a flared opening at one end designed to accept the insertion of a packet-type laminable plastic pouch and a pair of manually driven outlet compression rollers at the other end of the heating platens designed to compress and withdraw the heated laminable plastic pouch wherein all components are adapted to readily insert through openings in or drop into recesses in the tope edges of sidewalls during assembly of the laminator. Such a laminator is extremely efficient to operate and is readily assembled and repaired, leading to reduced operating, maintenance and capital investment costs.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: August 22, 1989
    Inventor: Fred D. Marvel
  • Patent number: 4451320
    Abstract: A packet-type laminating machine for laminating a flat object between two sheets of protective plastic film, involving two pairs of motor driven inlet and outlet rollers under compression with heating platens between and cooling shelf with guide after, wherein a gentle compression with minimum drag is applied at the heating and cooling stages and all components are adapted to be readily dropped into recesses in the top edges of support sidewalls during assembly of the laminator. Such a laminator is extremely efficient to operate and is readily assembled and repaired, leading to reduced operating, maintenance and capital investment costs.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: May 29, 1984
    Inventor: Fred D. Marvel
  • Patent number: 3959803
    Abstract: Disclosed herein is an improved instantaneous photography camera for use in the manufacture of photographic identification cards. The camera is of the type in which one or more masks are provided within the camera box of the camera to allow the sequential exposure of a portion of photosensitive film to an image containing credit information and an image of the subject of the credit identification to form a photographic identification card.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: May 25, 1976
    Inventor: Fred D. Marvel