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:
Feb. 21, 1984
Filed:
May. 21, 1981
Applicant:
Inventor:
Urho Heikkinen, Helsinki, FI;
Assignee:
Kone Oy, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27L / ;
U.S. Cl.
CPC ...
144342 ; 1442 / ; 1442 / ;
Abstract
A procedure and an apparatus for barking timber, wherein the timber is barked by the frictional barking method, and it is pretreated prior to barking in order to render the friction barking more efficient. In the pretreatment the timber is patched, that is partly barked, in that bare patches are produced in the bark of the timber, that is spots from which the bark has been removed, preferably by at least one water jet directed against the bark.