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. 24, 1996
Filed:
Dec. 01, 1994
Francis Chiu, Amherst, NY (US);
William Goss, Buffalo, NY (US);
David Hayes, North Tonawanda, NY (US);
Gary Randolph, Lyndonville, NY (US);
Cheryl Sak, Lyndonville, NY (US);
Jeff Valery, Lockport, NY (US);
James Vineski, Bergen, NY (US);
American Sigma, Inc., Medina, NY (US);
Abstract
A refrigerated automatic fluid sampling apparatus having a compressor assembly mounted in an upper portion thereof, above the thermally-controlled sample compartment. The apparatus includes a thermal control system which prolongs compressor life and optimizes compressor operation by exercising the compressor assembly during prolonged periods of non-use, preventing short-cycling of the compressor, and accurately monitoring sample temperatures to minimize compressor starts. The invention further includes a sampling control system which employs a statistical regression model to simulate real-life pumping system and operating characteristics so as to accurately deliver a predetermined sample volume, which permits sampling on a constant time, variable volume basis as well as other sampling modes.