Patents by Inventor Doloria M. Chapin

Doloria M. Chapin 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).

  • Spinning wheel yarn guide
    Patent number: 4090347
    Abstract: A spinning wheel having manually positionable means for guiding the spun yarn as it is wound on the bobbin to provide more even distribution of the coiled yarn along the length of the bobbin. A collar carrying a yarn guide member in the form of a hook encircles one of the arms of the flyer for sliding movement along the length thereof. A permanent magnet mounted upon the collar yieldably fixes the position thereof upon the flyer arm, which carries an elongated strip of material to which the magnet is attracted, until moved by the operator.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: May 23, 1978
    Inventor: Doloria M. Chapin
  • Spinning wheel
    Patent number: D251195
    Type: Grant
    Filed: August 17, 1976
    Date of Patent: February 27, 1979
    Inventor: Doloria M. Chapin