Horizontally supported planar surfaces – Vertically adjustable – With force-multiplying means
Reexamination Certificate
2005-04-26
2005-04-26
Chen, Jose V. (Department: 3637)
Horizontally supported planar surfaces
Vertically adjustable
With force-multiplying means
C108S147190
Reexamination Certificate
active
06883439
ABSTRACT:
The disclosure describes a non-swiveling pneumatic lectern with a base, a hollow column secured to the plate, a sleeve secured to the interior of the column, an adjustable tube having an upper end and a bottom end wherein the first end slides inside the sleeve secured to the column, a pneumatic cylinder disposed within the column for vertically moving the support, an actuation device for engaging and disengaging the pneumatic cylinder, a locking knob for locking the tube at a designated height by pressing the sleeve against the tube, and a top lectern section with a pivotable shelf.
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Berkowitz Marvin C.
Chen José V.
Nath & Associates PLLC
Raphael Jarrod N.
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