Reaction temperature control system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4858155
SERIAL NO

06813028

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Apparatus for controlling reaction temperatures in a chemical analyzer comprises a thermoelectric element operating in response to a temperature sensor, and control means capable of predicting a setpoint deviation for a future time period, and, when an overshoot is predicted, reducing a control signal for the element by an amount proportional to a current setpoint deviation. The apparatus includes at least one reaction cell and a buffer unit for thermally stabilizing a fluid that is fed, on demand, into the reaction cell, the cell and the buffer unit having separate thermoelectric elements and sensors. A microcomputer control system generates independent control signals for the elements.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
Beckman Instruments, Inc.FULLERTON, CA103

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ngo, Dang Cypress, CA 1 55
Okawa, Dobson Anaheim, CA 2 116
Pang, Wing S West Covina, CA 10 430
Shibata, George Chino, CA 1 55

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Beckman Instruments, Inc. (2)
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SENSORMEDICS CORPORATION (1)
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ELSAG INTERNATIONAL B.V., A CORP. OF THE NETHERLANDS (2)
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Omron Tateisi Electronics Co. (1)
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Schneider Automation Inc. (1)
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* Cited By Examiner

Patent Citation Ranking

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* Cited By Examiner