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. 13, 1988
Filed:
Apr. 27, 1987
Earl L Tippetts, Cache County, UT (US);
George B Bersonnet, Cache County, UT (US);
Wescor, Inc., Logan, UT (US);
Abstract
An electrical conductivity testing device for detecting mastitis in dairy cows includes an inlet for receiving a sample of milk to be tested, a conductivity cell having a milk flow-through testing passage in flow communication with the inlet, and a milk discharge outlet in flow communication with the conductivity cell, so that a milk sample enters the inlet, flows through the conductivity cell, and flows out through the discharge outlet. The flow described may be continuous or may be discontinuous so that the sample is held in the conductivity cell at least during taking of the conductivity measurement. The conductivity cell is arranged so that it is completely filled with milk during the taking of conductivity measurements. Electrical circuitry is provided to produce an electrical signal proportional to the conductivity of the milk in the conductivity cell. A preferred embodiment of the device takes conductivity measurements, individually and sequentially, of samples of milk from the four quarters of a cow's udder and produces electrical signals representing respective individual conductivity measurements on a scale of from 0 to 9 by electrical comparison of such conductivity measurements with a reference value, preferably by means of a bridge amplifier circuit, and exhibits respective digits representative of such measurements, preferably side-by-side, on a readout screen provided as a part of the instrument.