Patents by Inventor John A. Gamble

John A. Gamble 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: 5544383
    Abstract: A toothbrush which provides the user with simultaneous brushing action within the user's mouth. The long handle has an end portion of a substantially elliptical cross section in which a first side and a second side are of substantially similar elliptical curvature. Bristles are attached to both the first side and the second side in a similar pattern. The bristles on each side taper from a short extant near the end of the handle to a longer extant at a position farther from the end of the handle. Also, the bristles are formed in tufts substantially in rows latitudinally of the two sides.
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: August 13, 1996
    Inventor: John A. Gamble
  • Patent number: 4368887
    Abstract: A selector device is provided herein for the random selection of a small set of balls from a larger set of balls. It includes a flat box having a transparent cover. The box is divided into an upper chamber and a lower chamber, the upper chamber containing a large set of balls therein, with a small set of the balls having a significantly different appearance from the first set of balls, e.g., by being colored differently. The lower chamber is formed by parallel channels through apertures. The channels are just slightly wider than the diameter of the balls. All connections between the upper chamber and the channels are provided with rounded corners. In this way, each channel has an unimpeded entry mouth from the upper chamber. Finally, spaced-apart, indicia are arranged in longitudinal rows each along a respective channel. In this way, a chance selector device is provided in which the balls have an unhindered access by gravity to the channels, which permits truly random selection.
    Type: Grant
    Filed: March 17, 1981
    Date of Patent: January 18, 1983
    Inventor: John Gamble