Breakaway hose coupling with a magnetic connection

Details Breakaway hose coupling with a magnetic connection Breakaway hose coupling with a magnetic connection

2007-07-31

2009-02-10

Lee, Kevin L (Department: 3753)

Fluid handling

Systems

Flow path with serial valves and/or closures

C251S149700, C285S009100

Reexamination Certificate

active

07487796

ABSTRACT:
A breakaway coupling for a fuel supply hose includes a male valve body interfitting with a female valve body for defining a fuel passage, and the valve bodies enclose axially movable spring biased poppet valve members. The valve bodies are connected by a permanent magnetic coupling system which provides for moving the valve bodies from a connected position to a disconnected position in response to a substantial axial tension force on the valve bodies. In one embodiment, the coupling system includes an annular strike member surrounding the fuel passage and a mating annular magnet member supporting a plurality of circumferentially spaced permanent magnets of rare earth materials. In another embodiment, the valve bodies define a vapor return passage with a poppet valve member and disposed either radially outboard or inboard of the fuel passage. The magnetic coupling system also simplifies reconnecting the valve bodies.

REFERENCES:
patent: 3181895 (1965-05-01), Cator
patent: 3586048 (1971-06-01), Arnold
patent: 4049295 (1977-09-01), Piers
patent: 4691941 (1987-09-01), Rabushka et al.
patent: 4763683 (1988-08-01), Carmack
patent: 5419354 (1995-05-01), Krynicki
patent: 5433247 (1995-07-01), Guertin
patent: 6899131 (2005-05-01), Carmack et al.
patent: 7252112 (2007-08-01), Imler et al.

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