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. 24, 1986
Filed:
Jul. 06, 1984
Applicant:
Inventors:
Werner Herbert, Markdorf, DE;
Wunnibald Kunz, Friedrichshafen, DE;
Assignee:
Dornier System GmbH, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ; B05D / ;
U.S. Cl.
CPC ...
427291 ; 144364 ; 144365 ; 408 42 ; 408 58 ; 427325 ;
Abstract
A piece of wood is prepared for impregnation by causing it in steps to be perforated by a plurality of needles which are moved back and forth with the workpiece, and either rotate individually or are subject to additional oscillatory or impact-producing axial movement.