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:
Jul. 24, 2012
Filed:
Dec. 17, 2009
Cheng-hung Chou, Taipei Hsien, TW;
Cheng-Hung Chou, Taipei Hsien, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A height adjustment apparatus for a projector includes a lifting assembly, a pushing rod, and an operation member. The projector includes a bottom wall having a recessed portion extending towards the inner side of the projector. The lifting assembly is received in the recessed portion, and includes a housing secured to the recessed portion, a supporting member, a first engaging member, and a second engaging member. The supporting member has one end pivotably connected to the housing the other end capable of being rotated out of the recessed portion. The first engaging member is connected to the supporting member and includes a first toothed engaging surface. The second engaging member includes a second toothed engaging surface, and is slidable in the housing. The pushing rod and the operation member control the engagement between the first and second toothed engaging surfaces to allow the supporting member to rotate or not.