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:
Dec. 19, 2000
Filed:
Aug. 19, 1999
Applicant:
Inventor:
Anders Urban Jansson, Alvsjo, SE;
Assignee:
Atlas Copco Tools AB, Nacka, SE;
Primary Examiner:
Int. Cl.
CPC ...
H02K / ; H02K / ; H02K / ;
U.S. Cl.
CPC ...
310 89 ; 310 50 ; 310 52 ; 310 64 ; 173168 ;
Abstract
A portable power tool including a housing (10) intended for manual support of the tool and formed with an inner surface (29), and a motor (11) supported in the housing (10) and having a stator (22) surrounded by the inner surface (29) of the housing (10) leaving a space (30) wherein at least one heat screening shell (32;52) is provided to retard heat transfer between the motor (11) and the housing (10). Each heat screening shell (32;52) is preferably a thin sheet metal element which in itself has no heat insulating properties.