Patents by Inventor Leopold A. Hein, deceased

Leopold A. Hein, deceased 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).

  • Tube coupling device
    Patent number: 4655482
    Abstract: A first annular ring (44) has a keyed opening (64) sized to fit around the nut region (40) of a male coupling (14), and a second annular ring (42) has a keyed opening (52) sized to fit around the nut (26) of a female coupling (12). Each ring (42, 44) has mating ratchet teeth (56, 62), and these rings (42, 44) are biased together, thereby engaging these teeth (56, 62) and preventing rotation of these rings. This in turn prevents the rotation of the male nut region (40) with respect to the female nut (26). For tube-to-bulkhead locking, one facet (70) of one ring (44) is notched, and a pin (88) is pressed into an opening (84, 86) in the bulkhead (80). This pin (88) is sized to fit within one of the notches (74) in the ring (44), thereby preventing rotation of this ring (44) with respect to the bulkhead (80 ).
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: April 7, 1987
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: William N. Myers, Leopold A. Hein, deceased, Birgit G. Hein, executor