Patents by Inventor Joseph Perina

Joseph Perina 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).

  • Shear attachments using hook and loop fastener elements
    Patent number: 4271566
    Abstract: Various attachments are disclosed employing hook and loop fasteners which are confined in a manner to permit engagement and disengagement only in a shear direction.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: June 9, 1981
    Assignee: Velcro USA Inc.
    Inventor: Joseph Perina
  • Mirrors having stretched reflective sheet materials and method and apparatus for their production
    Patent number: 3973834
    Abstract: A planar mirror having a reflective surface of unusually superior quality formed by a metallized thin-film reflective sheet material in a stretched condition over a unitary frame having a raised integral peripheral ridge extending in an endless path therearound. The metallized thin-film sheet material is secured to the peripheral marginal portion of the frame on the forward side thereof thereby maintaining the stretched condition of the film over the peripheral ridge in a manner which provides uniform tensioning about the periphery of the ridge. A unique apparatus and an improved method of producing such mirrors is also disclosed.
    Type: Grant
    Filed: March 26, 1974
    Date of Patent: August 10, 1976
    Assignee: American Velcro, Inc.
    Inventors: Franklin E. Penn, Walter B. Fletcher, Edmund Rosa, Joseph Perina