Gas flush mixing system and method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7389722
APP PUB NO 20050279404A1
SERIAL NO

10874693

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A gas mixing system and method designed to flush produce with a gas-air mixture of desired oxygen concentration to preserve the produce. The produce is placed in a vacuum vessel, which is then evacuated to a desired degree. Atmospheric air is provided to the vacuum vessel via an air valve, and nitrogen gas is provided to the vacuum vessel via a gas valve. A valve controller operates in a first mode wherein the air valve is a fully open master valve and the gas valve is a partially or fully open slave valve, and operates in a second mode wherein the gas valve is a fully open master valve and the air valve is a partially or fully open slave valve. The system automatically switches between the two modes to accommodate changing conditions, to maintain the desired oxygen concentration in the gas-air mixture. Multiple modes are possible with greater numbers of valves.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
COOPERATIEVE CENTRALE RAIFFEISEN - BOERENLEENBANK B A "RABOBANK NEDERLAND" NEW YORK BRANCH AS COLLATERAL AGENT245 PARK AVENUE 37TH FLOOR NEW YORK NY 10167

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brown, Richard S Chualar, CA 32 265

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