Horizontally supported planar surfaces – Vertically adjustable – With force-multiplying means
Reexamination Certificate
2006-06-20
2010-06-29
Chen, José V (Department: 3637)
Horizontally supported planar surfaces
Vertically adjustable
With force-multiplying means
C248S162100, C248S406200
Reexamination Certificate
active
07743716
ABSTRACT:
A motorized elevator unit for adjusting the height of counter tops has right and left elevator assemblies under control of a primary control switch. Each elevator assembly includes top and bottom frames which may be formed from T-slotted framing with the top frame sliding vertically along the bottom frame on rollers received in the bottom frame. A movable counter top is mounted on the top frames and a motor drive assembly raises and lowers the top frames in unison. The elevator unit may be housed in a standard base cabinet and may be integrated with other standard base cabinets having stationary counter tops.
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Chen José V
Fishel Grace J.
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