Dentistry – Apparatus – Having storage or nonuse supporting means
Patent
1985-07-17
1986-09-09
Peshock, Robert
Dentistry
Apparatus
Having storage or nonuse supporting means
A61G 114
Patent
active
046106308
ABSTRACT:
A counter-balanced parallel arm assembly for supporting a control unit for dental handpieces, such as high speed air drills, and other air driven or electrically energized dental instruments which are removably mounted on the control unit, or for supporting other medical, electrical, electronic, or other units. The assembly includes an upright standard, a first arm mounted on the standard to be rotatable about a vertical axis, and a second arm coupled to the end of the first arm and rotatable about both vertical and horizontal axes. The supported unit is suspended from the end of the second arm by a post, and it is rotatable about the longitudinal axis of the post. The post is pivotally coupled to the end of the second arm to be rotatable about a horizontal axis. The supported unit may be set to any desired vertical and horizontal position to locate it for convenient access by the operator. The inclination of the second arm to the first arm is controlled by a counter-balancing coil spring and cam assembly, and the second arm is set to a desired inclination by an air-operated lock. A leveling assembly is mounted at the end of the second arm for setting the supported unit in a horizontal plane for different inclinations of the second arm.
REFERENCES:
patent: 3160379 (1964-12-01), Gardella
patent: 3650033 (1972-03-01), Behne et al.
Beecher Keith D.
Peshock Robert
Progressive Machine Products, Inc.
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