Supports – Stand – Standard type
Reexamination Certificate
2005-12-30
2008-03-18
Friedman, Carl D. (Department: 3632)
Supports
Stand
Standard type
C248S407000, C248S409000, C248S413000, C248S354400, C403S109100, C403S109200, C403S377000, C254S098000, C254S102000, C254S13300A, C254S00700R
Reexamination Certificate
active
07344117
ABSTRACT:
An adjustable lift support apparatus includes a base, a sleeve attached onto the base, at least one meshing device, a shaft, and a support attached at the shaft. At least one groove is formed on an inner surface of the sleeve along a first axial direction. Each meshing device corresponds to one of the at least one groove and includes a flexible protrusion. The shaft is inserted into the sleeve. At least one rack is provided on an outer surface of the shaft along a second axial direction, such that the flexible protrusion of the meshing device is meshed between two neighboring teeth of the at least one rack. The support is lifted or lowered by an external force to make each of the at least one rack move with respect to the flexible protrusion of the corresponding meshing device, so as to adjust the height of the support.
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Benq Corporation
Birch Stewart Kolasch & Birch, LLP.
Friedman Carl D.
McDuffie Michael
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