Coupling adapter

• US 4,921,013 A
• Filed: 08/21/1989
• Issued: 05/01/1990
• Est. Priority Date: 08/21/1989
• Status: Expired

• Current Assignee: Aeroquip Corporation (Eaton Corporation PLC.)
• Original Assignee: Aeroquip Corporation (Eaton Corporation PLC.)
• Inventors: Knowles, Steven M., Spalink, Robert D., Kosztowny, John T.
• Primary Examiner(s): Chambers, A. Michael
• Application Number:
  US07/396,323
• Time in Patent Office: 253 Days
• Field of Search: 137/614, 137/614.01, 137/637.1, 137/630.22, 137/614.05
• US Class Current: 137/614.05
• CPC Class Codes: F16L 37/30 with fluid cut-off means in each of two pipe-end fittings
• CPC Class Codes: F16L 37/32 at least one of two lift valves being opened automatically when the coupling is applied
• CPC Class Codes: F16L 37/36 with two lift valves being actuated to initiate the flow through the coupling after the two coupling parts are locked against withdrawal
• CPC Class Codes: Y10T 137/87933 Common joint and valve seat faces, or sections joined by closing members
• CPC Class Codes: Y10T 137/87965 Valve- or closure-operated by coupling motion

Abstract

The invention pertains to a coupling adapter for use with self-sealing valved coupling parts of the axially movable type for servicing and testing a fluid circuit. The adapter consists of a tubular body having a coupling end for connecting to the associated part and an axial passage wherein a threaded valve actuator is located having a free end adapted to releasably engage and displace the associated part'"'"'s valve. A torque appling handle operatively associated with the valve actuator facilitates manual control of the valve'"'"'s axial position.

Claims

1. A coupling adapter for use with a self-sealing valved coupling part having an axially movable valve normally forced to the closed position by a spring member characterized by its ability to selectively control the axial position of the coupling part'"'"'s valve when under high pressure, comprising, in combination, a tubular body having a coupling end and an outer end, quick-connect coupling means defined on said body adjacent said coupling end for selectively coupling said body and the coupling part in coaxial communication, said coupling means comprising an axially displaceable sleeve defined on said body operatively associated with a plurality of radially displaceable detents defined on said body, an axial passage defined in said body extending from said coupling end intersecting an axially aligned threaded bore formed in said outer end intermediate said ends, said passage including an enlarged cylindrical portion adjacent said coupling end and a concentric reduced diameter cylindrical portion adjacent said enlarged portion, a manually operable valve actuator having a threaded end received in said threaded bore and a head axially displaceable between said enlarged and reduced diameter portions adapted to releasably engage and axially displace the coupling part'"'"'s valve, said head including a cylindrical portion receivable within said passage reduced diameter portion, and annular seal mounted on said head cylindrical portion sealingly engaging said passage reduced diameter portion when said head cylindrical portion is received therein, a torque applying handle mounted on said valve actuator for rotating said actuator and manually controlling the axial position of the coupling part valve, first sealing means mounted on said actuator intermediate said head and said threaded end establishing a sealing relationship adjacent the intersection of said threaded bore and said passage, and a tubular extension mounted on said body transversely disposed to said body passage having a fluid port intersecting said body passage.