Through hole rotating cylinder

Details Through hole rotating cylinder Through hole rotating cylinder

1988-11-30

1991-03-05

Kwon, John T.

Expansible chamber devices

Fluid conduit in constant communication with relatively...

92117R, 279 4, 277152, 277156, F01B 3110

Patent

active

049969080

ABSTRACT:
A through hole rotating cylinder for controlling a workpiece gripping chuck associated with a rotary machine tool. The cylinder includes a cylinder body assembly, piston tube and fluid distributor section rotatable within a housing and defining a central axial opening. Bearings supported between the housing and cylinder body assembly are lubricated by flow from a hydraulic system used to move the piston tube in the cylinder body assembly. A coolant collector receives coolant liquid travelling through the central axial opening. A seal assembly between the coolant collector and the bearings prevents coolant from contaminating the hydraulic fluid in the hydraulic system.

REFERENCES:
patent: 3417672 (1968-12-01), Sampson
patent: 4040338 (1977-08-01), Wilson et al.
patent: 4139206 (1979-02-01), Knohl
patent: 4168654 (1979-09-01), Wilson et al.

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