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. 06, 2004
Filed:
Jul. 19, 2002
Applicant:
Inventor:
Manfred Schmidt, 71101 Schonaich, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47G 5/02 ;
U.S. Cl.
CPC ...
A47G 5/02 ;
Abstract
The invention pertains to a window shade with a shade panel, with a rotatable winding shaft for winding up the panel onto the winding shaft to form a roll and for unwinding the panel from this winding shaft to form a panel surface , and with a drive M. The invention is characterized in that control means R are provided upline of the winding shaft to vary the rotational speed of the winding shaft in such a way that the winding shaft has several periods in each revolution, where the angular velocity changes in a predetermined manner within each period.