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:
Sep. 03, 1996
Filed:
Jan. 30, 1995
Chris A Lemke, Fresno, CA (US);
Other;
Abstract
The density of a caustic solution is reduced by automatically adding water to the caustic solution when the specific gravity of the caustic solution is unacceptably high. The mechanism consists of a flow control valve that is controlled by an switch that monitors the position of a hydrometer. The switch is activated when the density of the caustic solution rises to unacceptable levels, causing the hydrometer to rise and activate the switch. The switch controls a valve that opens and allows water to enter the caustic solution reservoir, thereby diluting the caustic solution. When sufficient water has been added to the caustic, the hydrometer drops and the switch is deactivated, thereby closing the valve that allows water to enter the caustic solution reservoir. Excess caustic solution leaves the reservoir through an overflow on the reservoir.