The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 1978
Filed:
Feb. 08, 1973
Neil E Johnson, New Monmouth, NJ (US);
Other;
Abstract
A tennis training and rating apparatus comprises one or more ball delivery devices for delivering tennis balls past a net into a playing area so that a player may return the balls back over the net against a target assembly. The target assembly is composed of a series of target sections each of which is actuated when struck by a tennis ball to provide a corresponding output signal representing accuracy of placement of the return shot and the output signals are fed to a target area recorder which records the signals. A speed sensing system senses the speed of each tennis ball as it is returned over the net against the target assembly and provides an appropriate speed signal which is delivered to a speed recorder which records the speed signals. A computer device receives the signals from both the target area recorder and the speed recorder and computes the player's score based upon accuracy of placement and speed of the return shots.