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. 21, 2009
Filed:
Dec. 09, 2003
Anders Jakobsson, Hjo, SE;
Anders Köhler, Landvetter, SE;
Anders Reuterberg, Lerum, SE;
Niklas Sundberg, Alingsås, SE;
Anders Jakobsson, Hjo, SE;
Anders Köhler, Landvetter, SE;
Anders Reuterberg, Lerum, SE;
Niklas Sundberg, Alingsås, SE;
Aktiebolaget Electrolux, Stockholm, SE;
Abstract
A portable working machine comprising a tool unit () with a disc guard and a circular tool (), and a machine unit () with a filter system (), an internal combustion engine () with an engine cylinder () with bore () having a centre line (), a crankshaft () and a crankcase (), a fuel tank (), a muffler () with an entrance port () provided in the rear side of the muffler and facing an exhaust port () of the cylinder, handles () controls () and supports () on the underside of the machine unit for allowing upright positioning of the machine on a flat ground. The cylinder bore () is inclined forwards in a direction towards the tool unit, such that the centre line () of the cylinder bore forms a tilt angle larger than zero, in the direction, to a perpendicular to any or both of the following lines: (a) a base line () which is a line coinciding with a horizontal surface on which the machine is resting in an upright position, when the supports on the underside of the machine unit contact the surface, and (b) a tangential line (') extending from a peripheral point of the tool, on the lower part of the tool when the machine has an upright position, to the bottom side of a rear support of the machine unit.