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. 21, 2012
Filed:
Nov. 24, 2010
Kui Lai Curie Chan, Kowloon, HK;
Alan Kin Lun Choi, Kowloon, HK;
Kui Lai Curie Chan, Kowloon, HK;
Alan Kin Lun Choi, Kowloon, HK;
Lighthouse Technologies Limited, Kwon Tong, Kowloon, HK;
Abstract
A variable space shutter includes: a first frame having vertically spaced slats forming vertical openings; a second frame having a horizontal indented channel, the second frame being affixed to the first frame around a periphery of the first frame; and a shutter part having vertically spaced slats forming vertical openings, the shutter part being sandwiched between the first and second frames such that a portion of the shutter part rests within the horizontal indented channel to permit selective sliding movement of the shutter within the channel between a first position, wherein the vertical openings of the first frame line up with the vertical openings of the shutter part, to permit light to pass through the variable space shutter, and a second position, wherein the vertical openings of the first frame line up with the vertical slats of the shutter part, to block light from passing through the variable space shutter.