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:
Oct. 05, 1999
Filed:
Feb. 07, 1996
Philip D Oswalt, Indianapolis, IN (US);
Steven E Wash, Greenwood, IN (US);
Ronald A Wolfe, Indianapolis, IN (US);
Advantage Engineering, Inc., Greenwood, IN (US);
Abstract
A machine for circulating cooling water through manufacturing process equipment includes a combination pump and heat exchanger assembly. The machine has a cast metal pump case with two upwardly opening sockets receiving the lower ends of two tanks, one of them 'the suction tank' communicating through the case with the pump impeller intake, and the other 'the discharge tank' communicating with the impeller discharge. The tanks are constructed to function as heat exchangers, and they are readily and removably secured to the pump case by threaded fasteners and are sealed therein by compression seals. The discharge tank has electrical heating elements. The suction tank has a motor-operated modulator valve precisely fixed thereon, so as to enable discharging excessively warm water from the process to drain while cool make-up water from city water supply is admitted through the suction tank to the pump. A controller including a microcomputer responds to temperature of water pumped from the machine through the process equipment to be temperature controlled, and returned to the machine, to control the electric heater and/or the modulator valve, as needed. A flow meter in the suction tank provides input to the controller to provide a display of the water flow through the process, and temperature sensors are used to provide input to the controller to display cooling water temperature change. This information can be combined to provide a display of the cooling load. The machine is self-contained and wheel-mounted for mobility to facilitate connection to and disconnection from the process equipment.