Transparency block

Details Transparency block Transparency block

1979-09-04

1981-04-14

Mancene, Gene

Card, picture, or sign exhibiting

Photographic transparency viewer, e.g., x-ray viewer

Portable slide viewer

401522, 40564, 40 10D, G02B 2702

Patent

active

042611253

ABSTRACT:
A transparency block is disclosed which is attractive in appearance and provides a maximum of image area for any given dimension of block. An important feature of the invention is the use of locking fingers of unique construction for holding transparencies firmly in the block, and without the need for tape or mechanical mounting. Another feature is the provision of a built-in circline fluorescent lamp for providing maximum illumination of the transparency at a minimum of energy expenditure or cost. The block may be hung horizontally or vertically, and is so designed that it may be used in isolated manner or grouped with other or similar blocks, as may be required. For this purpose, it has a built-in recessed outlet for uncluttered interconnection with other similar blocks.

REFERENCES:
patent: 2521558 (1950-09-01), Alvarez
patent: 3771244 (1973-11-01), Ebner
patent: 3877162 (1975-04-01), Wilson

Affiliated with

Also associated with

Rating

Transparency block does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transparency block, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transparency block will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-152214