Title:
DUAL FUNCTION SERVICE COUPLING
Document Type and Number:
WIPO Patent Application WO2004005787
Kind Code:
A3
Abstract:
A service coupling (20) for use with either a push-type or a screw-type port valve of a charge port (22) is provided that includes a body portion (58) and an axially moveable valve housing (82). Axial movement of an actuator (70) permits both the selective axial movement of the valve housing (82) from a rearward position toward a forward position and the selective disengagement of the port valve (44) to open a flow path. In one embodiment the actuator (70) has a nose portion (356) that engages a threaded port valve, or axially moves a push-pin valve, to open a flow path. The operation is the same with either type of type of valve such that the user in not required to know which type of valve is present.
Inventors:
HAUNHORST GREGORY ALAN
Application Number:
PCT/IB2003/002580
Publication Date:
July 01, 2004
Filing Date:
July 02, 2003
Export Citation:
Assignee:
EATON CORP (US)
International Classes:
F16L37/23; F16L37/36; F25B45/00; (IPC1-7): F16L37/36; F16L37/34
Foreign References:
| US2739612A | 1956-03-27 | |||
| US5139049A | 1992-08-18 | |||
| US5339862A | 1994-08-23 | |||
| DE9402680U1 | 1994-04-21 | |||
| US4222411A | 1980-09-16 | |||
| US2753195A | 1956-07-03 | |||
| US6382251B1 | 2002-05-07 |
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