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. 30, 1983
Filed:
Aug. 03, 1981
William L Street, Sheboygan, WI (US);
James W Summers, Oostburg, WI (US);
Other;
Abstract
An automated milking system includes galvanized metal stall structures, and in a parlor system a galvanized metal grate for the hind feet of a cow. An extraneous voltage protective unit is provided to prevent initiating electrical current flow in the cow because of small extraneous voltages which may be created in the milking system. The milking machines include a stainless steel claw and a plastic transfer hose to a similar steel collection pipe. A stainless steel pipe is inserted in the hose. A voltage compensator/sensor is coupled to the claw and the pipe insert to monitor the claw and generate a compensating voltage applied to the milking system to neutralize, compensate or otherwise effectively eliminate current flow through the cow at the udder. An A.C. signal monitor and a total signal monitor are coupled to the circuit to monitor and indicate stray alternating current voltages in the system, to monitor and indicate the sum of D.C. voltages and A.C. voltages in the system. A limit control may detect a voltage along a selected limit and disconnect the protective apparatus and indicate such condition.