Patents by Inventor Alf Haggqvist

Alf Haggqvist 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).

  • Device for fastening an additional pane in a window
    Patent number: 4648221
    Abstract: A device for mounting or fastening of an additional glass panel into an existing window opening of a window frame which provides effective sealing of the space between the additional panel and the existing glass panel.A strip arrangement of the device includes a sealing portion which sealingly contacts a previously mounted glass panel and fastening elements for retaining the strip arrangement and additional glass panel in a position in which the sealing portion sealingly engages the existing glass panel in the window opening.
    Type: Grant
    Filed: January 26, 1984
    Date of Patent: March 10, 1987
    Assignee: AB Varnamo Gummifabrik
    Inventor: Alf Haggqvist