Patents by Inventor Jarl V. Plottner

Jarl V. Plottner 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).

  • Golfer's head movement indicator
    Patent number: 5375842
    Abstract: A golfer's head movement indicating device including a switch (30) enclosed in a pocket (50) and adapted to be attached to the outer garment of a golfer (10) at a location proximate to the upper front shoulder area (18) of the golfer (10), a signal device (A) connected to the switch (30) and a source of power (B) connected to the signal device (A) and the switch (30), said switch (30) including a pair of elongated contacts (32, 34) adapted to close in response to pressure exerted on the switch (30) by the golfer's shoulder (18) coming into contact with the golfer's chin whereby contact between the golfer's shoulder (18) and the golfer's chin closes the switch (30) to activate the signal device (A) to indicate that the shoulder (18) has contacted the chin.
    Type: Grant
    Filed: February 9, 1994
    Date of Patent: December 27, 1994
    Inventor: Jarl V. Plottner