Floating seal assembly for a bearingless coolant union having ai

Details Floating seal assembly for a bearingless coolant union having ai Floating seal assembly for a bearingless coolant union having ai

1995-08-01

1997-09-23

Arola, Dave W.

Pipe joints or couplings

With fluid pressure seal

Swivel with flange in socket

285281, F16L 1702

Patent

active

056696361

ABSTRACT:
A coupling device for providing a sealing arrangement with a rotating seal member includes a housing having a fluid coolant inlet, an air coolant inlet a passageway therethrough, and a seal shaft member having a seal member thereon and an axial bore therethrough positioned in said housing for axial sliding movement within the housing between an unpressurized position and a pressurized position. The seal shaft member, when in the pressurized position, provides a sealing arrangement between the rotating seal member and the shaft seal member. The coupling device further includes a first sealing assembly positioned between the engaging surfaces of the shaft member and the housing and structurally arranged to communicate with the air coolant inlet and a second sealing assembly positioned between the engaging surfaces of the shaft member and the housing and structurally arranged to communicate with said fluid coolant inlet. The first sealing assembly provides a seal between the movable shaft member and the housing when air coolant is directed into the housing and axially moves the shaft member to the pressurized condition. The second sealing assembly provides a seal between the movable shaft member and the housing when fluid coolant is directed into the housing and axially moves the shaft member to the pressurized condition.

REFERENCES:
patent: 2705651 (1955-04-01), Myers
patent: 3002769 (1961-10-01), Deubler et al.
patent: 4296952 (1981-10-01), McCracken
patent: 4976282 (1990-12-01), Kubola

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