Breakaway coupling with flapper valve

Details Breakaway coupling with flapper valve Breakaway coupling with flapper valve

2005-09-06

2005-09-06

Lee, Kevin (Department: 3753)

Fluid handling

Processes

Cleaning, repairing, or assembling

C137S614050, C137S614000, C285S039000, C285S316000, C251S149200

Reexamination Certificate

active

06938636

ABSTRACT:
A breakaway coupler for coupling upstream and downstream hose includes one or more locking balls carried by a downstream coupling member. An upstream flapper is pivotally secured with respect to an upstream housing. A pushrod is axially movable in response to engagement by the downstream coupling member. A pry recess on the downstream coupling member is spaced between the downstream housing and the upstream housing, such that a tool inserted into the pry recess is leverageable to move the downstream coupling member to unlock the breakaway coupler.

REFERENCES:
patent: 3909046 (1975-09-01), Legris
patent: 4090524 (1978-05-01), Allread et al.
patent: 4240651 (1980-12-01), Mariaulle
patent: 5228474 (1993-07-01), Nimberger
patent: 5320133 (1994-06-01), Nimberger
patent: 5419354 (1995-05-01), Krynicki
patent: 5699822 (1997-12-01), Bodhaine
patent: 5947142 (1999-09-01), Nimberger et al.
patent: 6840277 (2005-01-01), Nimberger

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