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. 08, 1986
Filed:
Nov. 19, 1984
Darrell W Kelsoe, Semmes, AL (US);
Permawood Treating Co., Kingwood, TX (US);
Abstract
A self-contained, portable wood treating apparatus and method for treating wood is disclosed. The wood treating apparatus includes a generally flat base in which a water tank is contained. A cylindrical pressure vessel is located above the base. A pair of elongate work tanks are located on respective sides of the pressure vessel between the pressure vessel and base. A reagent tank is also provided adjacent the base in which a concentrated treatment liquid is contained. A treatment system is provided for treating the wood located in the pressure vessel with a dilute treatment liquid contained in the work tanks. The treatment system includes a make up system for making up additional dilute treatment liquid by mixing water from the water tank and concentrated treatment liquid from the reagent tank. The improved method of operation includes the forming of dilute treatment liquid which is pumped into the pressure vessel to pressurize the pressure vessel and wood therein. This method also includes the steps of: pumping a diluent to the pressure vessel to pressurize the pressure vessel where the pumped flow rate of the diluent decreases as the pressure increases in the pressure vessel, measuring the flow rate of the pumped diluent, and adding concentrated reagent to the diluent being pumped in a varying proportional amount corresponding to the measured flow rate to form the proper concentration of dilute treating liquid in the pressure vessel.