Supports – Easel; book – copy or music score holder – Copyholder with writing machine engaging means
Reexamination Certificate
1997-07-29
2001-02-06
Ramirez, Ramon O. (Department: 3632)
Supports
Easel; book, copy or music score holder
Copyholder with writing machine engaging means
C211S045000, C248S316300, C400S718000
Reexamination Certificate
active
06182936
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to copy holders, and more particularly to a copy holder adapted for mounting on a monitor of a computer system to hold sheets of document that can be conveniently adjusted to the desired angle.
A variety of copy holders have been disclosed for holding sheets of document on a desk top or a monitor of a computer system, and have appeared on the market. However, these conventional copy holders still have drawbacks. When a conventional copy holder is fixed to a desk top or a monitor of a computer system, it can not be adjusted to the desired angle. Another drawback of conventional copy holders is that they do not have means to hold down turned-up sheets of document. Still another drawback of conventional copy holders is that the springs of the document clamping means start to wear quickly with use. When the springs of the document clamping means of a copy holder starts to wear, the document clamping means will be unable to hold down sheets of document firmly. Furthermore, when a copy holder is fixedly to a monitor of a computer system, it cannot be collapsed and closely attached to the periphery of the monitor.
SUMMARY OF THE INVENTION
The present invention has been accomplished to provide a copy holder which eliminates the aforesaid drawbacks. According to one aspect of the present invention, the copy holder comprises a flat holder base having at least one arched flange raised from a front side thereof near a top side thereof and defining a document insertion mouth, a first pair of vertically spaced lugs and a second pair of vertically spaced lugs bilaterally raised from a back side thereof; document clamping means mounted on the flat holder base and adapted to hold down inserted sheets of document in the document insertion mouth; an angle-adjustable mounting device pivoted to the first pair of vertical lugs of the holder base and adapted for securing to a monitor of a computer system for supporting the flat holder base; and a curved holding-down block pivoted to the second pair of vertically spaced lugs of the holder base and adapted to hold down turned-up sheets of document on the back side of the holder base. According to another aspect of the present invention, the at least one arched flange of the holder base defines with the front side of the holder base at least one roller chamber above the document insertion mouth, the at least one roller chamber having a width gradually upwardly increasing from the document insertion mouth; the document clamping means comprises at least one rack mounted in a respectively hole in the holder base corresponding to the at least one roller chamber, each of the at least one rack having a plurality of transverse teeth, and at least one toothed roller respectively turned in said at least one roller chamber, each of the at least one toothed roller having a plurality of longitudinal teeth equiangularly spaced around the periphery and adapted to engage the transverse tooth of the at least one rack. According to still another aspect of the present invention, the angle-adjustable mounting device comprises a mounting frame adapted for securing to a monitor of a computer system, a swivel support pivoted to the first pair of vertically spaced lugs of the holder base and revolvably supported on the mounting frame, and a spring strip mounted in a smoothed curved groove on the mounting frame and adapted to retain the swivel support in position.
REFERENCES:
patent: 3591013 (1971-07-01), Vor Hermann
patent: 4085848 (1978-04-01), Tsuge
patent: 5152490 (1992-10-01), Deutsch
Ramirez Ramon O.
Rosenberg , Klein & Lee
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