Patents by Inventor David Willardson

David Willardson 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).

  • Baseball swing training apparatus
    Patent number: 9061190
    Abstract: A baseball swing training device that is operable to teach an improved baseball swing plane wherein the baseball swing training device is tiltably adjustable in a first direction and a second direction. The baseball swing training device further includes a base member having a telescoping support arm extending upward therefrom. Secured to the telescoping support arm is an upper frame assembly that includes a support arm that is u-shaped. An upper bat guide member and a lower bat guide member are secured to the support arm and are parallel in configuration having a void therebetween. A pair of ball grip members are mounted intermediate the lower bat guide member and upper bat guide member. A speed sensor is present and is operable to detect the speed of either the ball or the bat during use of the baseball swing trainer and display the speed on a LCD screen.
    Type: Grant
    Filed: October 13, 2013
    Date of Patent: June 23, 2015
    Inventor: David Willardson
  • Baseball Swing Training Apparatus
    Publication number: 20150105187
    Abstract: A baseball swing training device that is operable to teach an improved baseball swing plane wherein the baseball swing training device is tiltably adjustable in a first direction and a second direction. The baseball swing training device further includes a base member having a telescoping support arm extending upward therefrom. Secured to the telescoping support arm is an upper frame assembly that includes a support arm that is u-shaped. An upper bat guide member and a lower bat guide member are secured to the support arm and are parallel in configuration having a void therebetween. A pair of ball grip members are mounted intermediate the lower bat guide member and upper bat guide member. A speed sensor is present and is operable to detect the speed of either the ball or the bat during use of the baseball swing trainer and display the speed on a LCD screen.
    Type: Application
    Filed: October 13, 2013
    Publication date: April 16, 2015
    Inventor: David Willardson
  • Method for preventing high speed vehicle pursuits and vehicle theft
    Publication number: 20070248408
    Abstract: This device is a type of lance that is attached to the underneath of a police vehicle. It consists of a hydraulic pump that extends and retracts a long sharp lance from the front of the police car that will deflate the tires of vehicles that the police car is pursuing in a chase.
    Type: Application
    Filed: April 25, 2006
    Publication date: October 25, 2007
    Inventor: David Willardson