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:
Aug. 30, 1994
Filed:
Apr. 23, 1992
Sony Corporation, Tokyo, JP;
Abstract
A screen cover opening device for a television receiver is provided with a screen cover openably closing left and right side portions or upper and lower side portions of a screen adapted for electively displaying plural different aspect ratio images. Two vertically extending rolls 5a, 5b are arranged at outwardly shifted positions from left and right lateral sides wrapped around of the screen 2 and an endless cover sheet 3 is wrapped around these rolls. Two windows 4a, 4b are formed at longitudinally spaced apart positions of the cover sheet 3. The rolls are rotated to run the cover sheet to change overlap of the two windows to change the transverse width W that may be viewed through overlapped portions of the two windows.