Copy holders

Supports – Easel; book – copy or music score holder – With article gripping means

Reexamination Certificate

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Details

C248S456000, C248S460000, C248S462000

Reexamination Certificate

active

06264160

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a copy holder and/or adjustable support means particularly although not solely designed for use in providing the support for a copy holder.
2. Present State of the Art
Copy holders presently available are normally either presented at a fixed angle for the user or where adjustment is possible the adjustment is not easily made by the operator and most available adjustment mechanisms allow only a step or predetermined position adjustment.
OBJECTS AND BRIEF SUMMARY OF THE INVENTION
It is an object of the present invention to provide a copy holder and/or an adjustable support mechanism which has particular application for a copy holder that will allow for easy incremental adjustment for an operator.
Accordingly, in one aspect the invention consists a copy holder comprising a document holding stand and an adjustable support means to provide stable support for said document holding stand, said adjustable support means including a pivotal support means to allow pivotal movement between said document holding stand and said adjustable support means, a clutch means in operative engagement with said pivotal support means to hold said document holding stand in position and hand actuated control operating means to act upon and release said clutch means enabling an operator within a working range to select the angle at which the document holding stand is supported and upon such selection release of said hand actuated control means will cause the clutch means to reengage retaining said document holding stand in the selected position.
In a further aspect the invention consists in an adjustable support means comprising two housing spaced apart and designed to support a member to be adjusted, with said housing located towards the sides of said member, a shaft extending symmetrically between said housing with the ends of said shaft pivotally engageable in said housing, clutch means operable when engaged to restrain pivotal movement between the shaft and said housings, hand actuated control operating means operable to release said clutch means, a back support means extending rearwardly from said shaft so that the lower end of the two housings and the free end of the back support means creates a stable support with incremental adjustment between the housings and the support stand effected by an operator using the hand actuated control operating means to release said clutch means allowing said housings and any member supported thereby to pivot about the shaft until the selected position whereupon release of said hand actuated control operating means will allow the clutch to reengage to retain the housing and any member held thereby in the newly selected position.


REFERENCES:
patent: 1947053 (1934-02-01), Mason
patent: 3562796 (1971-02-01), Jacobson
patent: 4113212 (1978-09-01), Coriden
patent: 4470571 (1984-09-01), Hartman
patent: 4516508 (1985-05-01), Kako et al.
patent: 4592528 (1986-06-01), Still
patent: 4775128 (1988-10-01), Evenson
patent: 5149046 (1992-09-01), Kerley et al.
patent: 5582382 (1996-12-01), Pan-Yang
patent: 5765799 (1998-06-01), Weber
patent: 5823504 (1998-10-01), Kuwajima
patent: 5927673 (1999-07-01), Kurokawa et al.

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