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. 04, 2008
Filed:
Feb. 19, 2004
David Barry Berger, Willowdale, CA;
David Barry Berger, Willowdale, CA;
Masonite International Corporation, Mississauga, CA;
Abstract
Magnetic tilt and raise/lower mechanisms for a venetian blind disposed between the glass panes of a multi-pane window are disclosed. The magnetic mechanisms act on tilt lines and a raise/lower line coupled to the venetian blind. An inner follower carriage is magnetically coupled to an external carriage moveable over one of the glass panes. Movement of the external carriage imparts movement of the follower carriage, which in turn actuates the tilt or raise/lower lines, causing the venetian blind to move. The inner follower carriage and the external carriage include at least one magnet assembly mounted on at least one wheel set to facilitate movement of the carriages over the glass panes as well as to reduce the force required to raise or lower the venetian blind. A multiplier is employed to reduce the stroke length required to raise or lower the venetian blind. Further, a clutch coupling an external slider to the external carriage is provided and to disconnect the slider from the external carriage upon the application of a force exceeding a threshold level.