Extensible lockable apparatus

Details Extensible lockable apparatus Extensible lockable apparatus

1997-04-14

1999-03-30

Knight, Anthony

Joints and connections

Articulated members

Lockable at fixed position

403377, 403325, 248410, F16B 710

Patent

active

058880143

ABSTRACT:
An apparatus for locking a telescopic column in any selected extended length and for unlocking a skewed lock washer so that the column can return it to a collapsed position particularly by the use of a foot pedal to unlock same; and the use of such an apparatus in a rapidly adjustable supporting platform for displaying an article thereon. The apparatus preferably includes a movable base supporting the column.

REFERENCES:
patent: 1372456 (1921-07-01), Roetter
patent: 2442779 (1948-11-01), Oriold
patent: 2495674 (1950-01-01), Lewis
patent: 3588023 (1971-06-01), Cohen
patent: 5547308 (1996-08-01), Wright

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