Patent ID: 11857994
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B  F

Claim 0:
1. A crossover prevention valve for a multi-component fluid mixing and dispensing system, said crossover prevention valve comprising:
a valve body defining first and second fluid passageways therethrough, said first and second fluid passageways having respective upstream end portions and downstream end portions, said valve body having a perimeter body surface directly connecting a forward body surface and a rearward body surface of said valve body;
wherein said upstream end portions of said first and second fluid passageways are configured to sealingly receive respective fluid outlet nozzles of the multi-component fluid mixing and dispensing system, whereby pressurized fluids exiting the fluid outlet nozzles are received at said valve body only by respective ones of said first and second fluid passageways;
first and second one-way check valves positioned at respective ones of said downstream end portions of said first and second fluid passageways, wherein said first and second one-way check valves are operable to prevent fluid flow through respective ones of said first and second fluid passageways in response to equal or elevated fluid pressure in an area forward of said valve body relative to a fluid pressure in either of said first and second fluid passageways;
wherein said forward body surface of said valve body is configured to define a rearward portion of a fluid mixing chamber of the multi-component fluid mixing and dispensing system; and
wherein said perimeter body surface of said valve body is configured to sealingly and releasably engage an inner wall portion of a dispensing nozzle fitted over said valve body.