Pneumatically static balancer for machine tool

Details Pneumatically static balancer for machine tool Pneumatically static balancer for machine tool

2006-04-14

2008-09-16

Lazo, Thomas E (Department: 3745)

Motors: expansible chamber type

Moving cylinder

C092S18100P

Reexamination Certificate

active

07424846

ABSTRACT:
A pneumatically static balancer for a machine tool counterbalances or lightens a gravitational load generated by an own weight of a vertically moving driven member. The pneumatically static balancer includes a pneumatic cylinder supporting the driven member and allowed to move vertically, a pneumatically static bearing having a piston inserted into the pneumatic cylinder, the pneumatic static bearing being formed by feeding compressed air, which is in an interior of the pneumatic cylinder, into a small clearance formed between the pneumatic cylinder and the piston, a cylinder rod connected to an upper end of the piston and a saddle supporting a leading end portion of the cylinder rod.

REFERENCES:
patent: 3319534 (1967-05-01), Boonshaft
patent: 4389781 (1983-06-01), Donaldson
patent: 4507868 (1985-04-01), Tuss
patent: 4799316 (1989-01-01), Tuss
patent: 6473161 (2002-10-01), Cuijpers et al.
patent: 10-138081 (1998-05-01), None

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