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:
Dec. 17, 1996
Filed:
Nov. 03, 1994
Mark E Hart, Gladstone, MO (US);
Lars H Andersson, Sodertalje, SE;
Alfa Laval Agri Inc., Kansas City, MO (US);
Abstract
A non-conductive dairy parlor gate is provided which retains the strength and corrosion resistance of magnetically conductive materials while permitting the gate to swing into and/or through an electromagnetic field generated by an electronic identification system for use with animal-worn transponders. The gate includes at least two magnetically conductive parts connected by an electrically non-conductive member to interrupt the formation of a magnetic loop. The gate may include additional structural members for strength and which inhibit a dairy animal from placing her head through the gate. The gate is used as a part of a dairy parlor and placed along an animal passage lane to prevent dairy animals from moving their transponders past the identification system prematurely. The gate may be positioned adjacent a milking stall to retain one dairy animal in position while inhibiting the passage of a second set of animals into the milking stalls.