Patent Number: 6,192,934

Title: Break-away concentric hose coupling

Abstract: A vapor recovery breakaway hose coupling for use in conjunction with a vapor recovery nozzle and for application within a fuel line, that prevents untimely decoupling, that incorporates a secondary seal that is located between the fuel and vapor passages to maintain clean o-ring sealing and sliding surfaces by preventing fuel and/or contaminates from contracting the primary fuel to vapor o-ring when the valve is in a non-emergency situation, an interference bump is incorporated which imparts a shock to the fuel check valve during separation and unbalanced check valve springs that maintains a static seal to reduce o-ring fretting, and primary fuel to vapor o-ring relocation.

Inventors: Coates, III; Gordon R. (Augusta, MO), Mitchell; Thomas O. (Maryland Heights, MO), Fink, Jr.; Arthur C. (Lonedell, MO)

Assignee: Husky Corporation

International Classification: F16L 55/10 (20060101); F16L 037/28 ()

Expiration Date: 02/27/2018