Push-to-connect coupler with interlocking three-way valve

Details Push-to-connect coupler with interlocking three-way valve Push-to-connect coupler with interlocking three-way valve

1994-06-23

1995-05-09

Chambers, A. Michael

Valves and valve actuation

With correlated flow path

Flow path joint interlocked with valve or actuator

13761406, 285924, F16L 3728

Patent

active

054133092

ABSTRACT:
A push-to-connect coupler including an interlocking three-way valve that enables coupling and uncoupling with respect to a mating nipple only when the coupler is in a vent mode. The coupler is characterized by a unique integration of a manually operated three-way ball valve that vents the coupler down to atmospheric or reduced pressure prior to coupling or uncoupling and preferably to a recovery line, a push-to-connect sleeve locking mechanism which interlocks with the manually operated handle of the three-way valve and whose operation is visibly obvious to the user, and an internal valve mechanism that prevents the free flow of media should the coupler become miscocked.

REFERENCES:
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patent: 4540021 (1985-09-01), Rogers
patent: 4548237 (1985-10-01), Bogenschultz
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patent: 4676269 (1987-06-01), Sarson
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patent: 4809949 (1989-03-01), Rakieski
patent: 5074332 (1991-12-01), Jones
patent: 5095947 (1992-03-01), Weh et al.
patent: 5129621 (1992-07-01), Maiville et al.
patent: 5149053 (1992-09-01), Galli
Parker-Hannifin Corporation, Two Drawing Sheets Showing Prior Art Coupler and Mating Nipple.
Parker-Hannifin Corporation, One Drawing Sheet Showing Prior Art Three-Way Valve.
American Gas Association, Proposed American National Standard for National Gas Vehicle (NGV) Fueling Connection Devices (DRAFT) (1991 or Earlier).

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