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:
Jun. 09, 1987
Filed:
Mar. 31, 1986
Applicant:
Inventors:
Robert E Leonard, Oklahoma City, OK (US);
William H Lamansky, Oklahoma City, OK (US);
Assignee:
Kerr-McGee Chemical Corporation, Oklahoma City, OK (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
34-95 ; 34 138 ; 34 165 ;
Abstract
The invention relates to an improved process for drying and preserving wood products. The improved process comprises the steps of first drying the wood products by submerging them in a naphthalene poor, coal tar based heat transfer medium under conditions of elevated temperature and reduced pressure. The dried wood products then are impregnated with a naphthalene rich, coal tar based wood preservative agent by submerging said dried wood products in said agent under conditions of both elevated temperature and pressure.