Coupling device

Details Coupling device Coupling device

1993-02-24

1994-05-17

Hepperle, Stephen M.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

137606, 13761405, 2511496, F16K 1120

Patent

active

053118995

ABSTRACT:
A coupling device intended to prevent impurities such as dust and particles adhering to the end face of a solution supplying male pipe 2 from being mixed with a high purity chemical solution N, which will be supplied through the device, not to degrade the purity of the solution. It includes a check valve 7 arranged in that end portion of a solution passage 5 in the male pipe 2 which is inserted into a cleaning chamber 15, a valve pusher 44a arranged in that end portion of a solution passage 43 in a solution supplied female pipe 3 which is connected to the passage 5 in the male pipe 2 to push the check valve 7 to open the passage 5, a valve system for opening and closing the passage 43 when the female pipe 3 is reciprocated in the axial direction, and a check valve 51 located on the outlet side of a cleaning liquid passage 48.

REFERENCES:
patent: 3550624 (1970-12-01), Johnson
patent: 3680591 (1972-08-01), Vik
patent: 4541457 (1985-09-01), Blenkush
patent: 5058619 (1991-10-01), Zheng
patent: 5129423 (1992-07-01), Fournier et al.
patent: 5150880 (1992-09-01), Austin et al.

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