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:
Apr. 16, 1985
Filed:
Jul. 29, 1983
M Scott Quigley, Garland, TX (US);
Gordon A Russell, Dallas, TX (US);
Mobil Oil Corporation, New York, NY (US);
Abstract
Temperature control apparatus for a system for testing drilling mud includes instrumentation for measuring the parameters of the drilling mud, and a pump for pumping the drilling mud in a recirculating path through the instrumentation. A mud heater in the recirculating path heats the mud and a heat exchanger connected in the front of the heater in the recirculating path cools the mud before it is heated. The heater and the heat exchanger are controlled to maintain a constant differential across the heater. The heater is constructed in a manner which provides low thermal mass, thereby providing a fast response time for changes in temperature.