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:
Mar. 19, 1991
Filed:
Mar. 09, 1990
Jerry W Brum, Modesto, CA (US);
James E Crismon, Modesto, CA (US);
ESM International, Inc., Houston, TX (US);
Abstract
A sorting machine for separating substandard items from a continuous flow of fungible items is disclosed wherein the ejector means for removing the detected substandard items includes an air blast nozzle having a built-in end means for creating a pressure differential in the blast to keep particle dust from rising and quickly causing the optical window in front of the detector sensor or sensors to coat and become opaque. The pressure means is preferably a tab or other surface at a right angle to the nozzle or parallel to the product flow, its direction being on the opposite side of the nozzle from the window. By minimizing dust build-up on the window, down time of the sorting machine for window cleaning is minimized.