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:
Feb. 13, 2001
Filed:
Jul. 06, 1999
Applicant:
Inventors:
Michael J. Purvis, St. Louis, MO (US);
J. Rodney Bryan, Jr., Kirkwood, MO (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/104 ; F16K 5/100 ;
U.S. Cl.
CPC ...
F16K 3/104 ; F16K 5/100 ;
Abstract
A water shut-off system incorporates a water shut-off valve utilizing a pair of adjacently disposed electrodes, a transmitter and a receiving means. The water shut-off valve is in the form of a ball valve. A timing logic causes current to flow to a valve driving motor as electric pulses. A cam means and the electric pulses allow control of current flow to the motor so that the ball valve stops moving upon completion of a ninety degree rotation;