Quick leveling apparatus

Details Quick leveling apparatus Quick leveling apparatus

1984-12-28

1986-12-02

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

248649, A47B 910

Patent

active

046254242

ABSTRACT:
Apparatus for Levelling a surface, such as a table, includes several bellows containing a fluid connected to the surface, conduits connecting the bellows together and a control valve for connecting or disconnecting the conduits, the control valve being located in a chamber and being separated from an actuator by a diaphragm.

REFERENCES:
patent: 2956761 (1960-10-01), Weber
patent: 3310263 (1967-03-01), Cavanaugh
patent: 3768766 (1973-10-01), Bain

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