Patents by Inventor Helen E. Douglas

Helen E. Douglas 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: 4673114
    Abstract: Each hanger arm includes a stub shaft with a locking notch immediately adjacent. Elongated extender arms, one for each hanger arm, each include a hollow end which can be received onto a locking stub shaft and have detent parts to be snapped into the adjacent locking notch. To release an extender arm from the hanger body, it is swung outwardly and upwardly a slight amount, which removes the detent from the notch allowing the extender arm to be pulled off the hanger body stub shaft. The outer end of an extender arm may be provided with a similar stub shaft enabling a second extender arm to be releasably locked to a first extender arm providing further total arm length.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: June 16, 1987
    Inventor: Helen E. Douglas