Agitating – Having specified feed means – Liquid injector within mixing chamber
Reexamination Certificate
2007-02-06
2007-02-06
Sorkin, David (Department: 1723)
Agitating
Having specified feed means
Liquid injector within mixing chamber
C366S172100, C366S172200, C366S174100, C366S181400, C366S181500, C366S331000, C422S225000
Reexamination Certificate
active
10834240
ABSTRACT:
An oil phase solution injected into a mixing flow path from an upstream injection inlet forms a flow from an upstream injection inlet to a discharge outlet, and a rotary blade is provided downstream of a mechanical seal. Thus, a reverse flow toward a mechanical seal of a polyvalent isocyanate and a polyol injected from an inlet downstream with respect to the mechanical seal tends not to take place. A separating film member is provided to prevent the chemical solutions flowing in the mixing flow path from coming into contact with a pressing means, which is for pressing a seal ring member of the mechanical seal against a rotation ring member. A reaction product is not adhered to the pressing means of the mechanical seal, which would decrease the pressing force, and leakage of the liquid from the mechanical seal can be effectively prevented.
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Chikami Nozomu
Shinohara Ken-ichi
Fuji Photo Film Co. , Ltd.
Sorkin David
Sughrue & Mion, PLLC
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