Supports – Brackets – Adjustable
Patent
1993-02-08
1994-09-20
Ramirez, Ramon O.
Supports
Brackets
Adjustable
2481231, E04G 300
Patent
active
053482603
ABSTRACT:
The movable supporting arm is mounted on a pivot pin at its inner end on a wall or base. The outer end is spring counter-balanced by an adjustable spring and there is a friction brake which controls movement and locks the arm in position. The friction brake and arm can both be mounted with the same hand so that the supporting arm can be moved into position and locked in position.
REFERENCES:
patent: 2572231 (1951-10-01), Woodward
patent: 5037053 (1991-08-01), Fox et al.
Marus Dental Products (1979).
Alkov Leonard A.
Denson-Low W. K.
Hughes Aircraft Company
Ramirez Ramon O.
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