Supports – Stand – Understructure
Reexamination Certificate
2006-08-08
2006-08-08
King, Anita M. (Department: 3632)
Supports
Stand
Understructure
C248S163100, C108S006000, C108S147000
Reexamination Certificate
active
07086632
ABSTRACT:
A keyboard instrument support has a driving device to control upward and downward movement of inner tubes relative to the outer tubes and a ratchet device to retain the elevation of the inner tubes. The ratchet device includes a ratchet alternatively rotated by the driving device and a leverage to abut a ratchet tooth. Thus, after the inner tubes are elevated by the driving device, the abutment of the leverage to the ratchet retains the elevation of the inner tubes.
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Kamrath Alan D.
King Anita M.
Nikolai & Mersereau , P.A.
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