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:
Aug. 16, 1983
Filed:
Feb. 19, 1982
Wayne D Wilson, Colorado Springs, CO (US);
James J Joyce, Colorado Springs, CO (US);
Other;
Abstract
Volleyball net touch violations are detected and an indicator identifying the offending team is actuated by a system that incorporates antennas into the volleyball net and utilizes radiant energy generated by court illuminating lights. A wire mesh antenna is affixed to each side of the net. The outputs of the antennas are amplified and compared with a reference. A player touching either net adds capacitance to the system producing a measurable signal. A NAND gate logic circuit determines which net was touched and actuates the appropriate indicator. The system does not respond to the volleyball which is a dielectric material does not add capacitance to the system.