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:
Mar. 01, 2016
Filed:
Mar. 05, 2014
Andreas Stihl Ag & Co. KG, Waiblingen, DE;
Helmar Amend, Ludwigsburg, DE;
Christoph von Hiller, Stuttgart, DE;
Alexander Fuchs, Bietigheim-Bissingen, DE;
Christine Rominger, Stuttgart, DE;
Matthias Schulz, Freiberg am Neckar, DE;
Jonas Lank, Winnenden, DE;
Klaus-Martin Uhl, Plochingen, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
A guide bar for a chain saw has an elongate main body of steel. The main body has flat sides and upper and lower peripheries defining a guide groove for a saw chain. An elongate window is formed in the main body between the peripheries and is filled with an insert made of a fiber composite material made up of resin and fibers. The fibers are in the direction of the longitudinal axis of the main body. The insert includes a plurality of fiber layers that are bonded with resin. A central layer is formed from a fiber layer and the fibers thereof are at an angle to the longitudinal axis. Two fiber layers having fibers oriented in the direction of the longitudinal axis of the main body are on both sides of the central layer. The inner fiber layers are covered outwardly by a woven fabric.