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:
Jan. 31, 1989
Filed:
Oct. 08, 1987
Mats Johansson, Forshaga, SE;
Electrolux Motor Aktiebolag, Huskvarna, SE;
Abstract
The invention relates to an annular circular saw blade (8) with imaginary center axis and with a plane of symmetry (19) which is perpendicular to the imaginary center axis, an inner rim section (14) with a first drive surfaces (22) provided to work in conjunction, through friction coupling, with second drive surfaces (38) on a rotating drive unit (30); an outer rim section (15) with cutting devices and between them a web portion (16) with an underside (17) and a topside (18), with at least one of the said sides (17, 18) exhibiting at least a first annular bearing surface (25) provided to work in conjunction with a second annular bearing surface (45) on a support element (40, 41) for holding the saw blade in position. According to the invention the said first drive surfaces (22) are provided in a groove (20) in the inner rim of the saw blade.