Balancing vertical load device for a motor

Details Balancing vertical load device for a motor Balancing vertical load device for a motor

2006-02-28

2006-02-28

Look, Edward K. (Department: 3745)

Motors: expansible chamber type

Position maintaining type

C060S410000

Reexamination Certificate

active

07004060

ABSTRACT:
A balancing vertical load device for a motor, to be used in conjunction with a vertical driving device with a force- and position-controlled motor, comprising a motor assembly and a sealed air pressure system. The motor assembly has a motor, and a load weight which, driven by the motor, performs a vertical movement. The sealed air pressure system has an air cylinder, a piston, gliding inside the air cylinder with low friction and being connected with the load weight, an air container, storing a relatively large air volume, and an air pressure source. The sealed air pressure system balances a load of the load weight, so that precise control of force and position of a vertically moving object, as if moving horizontally, is achieved.

REFERENCES:
patent: 3894476 (1975-07-01), Cobb
patent: 5303549 (1994-04-01), Berchtold et al.
patent: 5425237 (1995-06-01), Suer
patent: 6041597 (2000-03-01), Huang

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