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:
Feb. 11, 1992
Filed:
May. 07, 1991
Genichi Kitahara, Tokyo, JP;
Nihon Biso Kabushiki Kaisha, Tokyo, JP;
Abstract
A device for cleaning a window glass having a moving unit which is moved along a window of a building and a squeegee capable of removing dust deposited on a window glass by spraying water thereon and thereafter scraping the dust off the window glass comprises a first moving member such as a piston guide having a size corresponding to width of a window glass and being mounted on the moving unit in such a manner that the position of fixing the first moving member to the moving unit can be adjusted so that the first moving member can be located closer to or away from the window glass, a second moving member such as a piston mounted on the first moving member in such a manner that the second moving member can be moved toward and away from the window glass, a gas bag containing pressurized gas and connected to the second moving member to supply a moving force to the second moving member, a third moving member such as squeegee holders mounted on the second moving member in such a manner that the third moving member can be moved toward and away from the window glass, said third moving member being divided in plural members in the direction of the width of cleaning, energizing means such as springs for urging the third moving member toward the window glass, and a squeegee secured to the third moving member.