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:
Jun. 26, 1990
Filed:
Jun. 01, 1989
Ronald G Darner, Fort Atkinson, WI (US);
Graber Industries, Inc., Middleton, WI (US);
Abstract
A vertical blind of the type having a plurality of louver carriages mounted for movement along a guide channel, with a louver carrier mounted on each carriage for rotation about an upright axis and carriage gear mechanism for rotating the louvers in response to turning of an operating shaft that extends lengthwise of the channel. A wand is attached to a drive lever at one end of the channel and the wand is arranged to angularly oscillate the drive lever in response to raising and lowering of the wand and to rotate the operating shaft through an angular motion amplifying mechanism, to rotate the louvers through 180.degree. in response to raising and lowering of the wand. The wand is preferably tubular and one of the cords in the operating loop is arranged to extend through the tubular wand to separate the cords.