Supports – Easel; book – copy or music score holder – Adjustable operative size
Patent
1992-03-13
1993-03-23
Purol, David M.
Supports
Easel; book, copy or music score holder
Adjustable operative size
248451, 248457, A47B 9704
Patent
active
051957140
ABSTRACT:
An improved bookholder for use with a pole lamp comprising a book support having a back rest and pivotable ledges adapted to hold the book in a selectable orientation, an attachment at one end thereof to the bookholder, the arm being sufficiently flexible to be bent to a desired shape and sufficiently rigid to maintain the shape after it is bent, and a shade attached to the other end of the adjustable arm, whereby the shade may be adjusted with respect to the light source and a book on the book support. Preferably, the shade comprises light-attenuating vanes which may be folded up like a fan when not in use, or opened to any desired extent to change the size of the shade. The adjustable arm holding the shade may be bent or moved in a variety of directions to adjust the position of the shade with respect to the light source.
REFERENCES:
patent: 438856 (1890-10-01), Muller
patent: 1347645 (1920-07-01), Manny
patent: 1396700 (1921-11-01), Greenwood
patent: 1494212 (1924-05-01), Bromley
patent: 1538198 (1925-05-01), Manchester
patent: 1712814 (1929-05-01), Dierks
patent: 1781203 (1930-11-01), Teleki
patent: 2590657 (1952-03-01), Shepard
patent: 3351312 (1967-11-01), Ballas
patent: 3905573 (1975-09-01), Davis
patent: 4191354 (1980-03-01), Chia-Liu
patent: 4290093 (1981-09-01), Thompson et al.
patent: 4700634 (1987-10-01), Mills et al.
patent: 4896252 (1990-01-01), Stewart
patent: 4907773 (1990-03-01), Stewart
patent: 4998703 (1991-03-01), Stewart
Crutcher William C.
Purol David M.
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