Use of stellite to prevent silver plateout

Details Use of stellite to prevent silver plateout Use of stellite to prevent silver plateout

1993-05-13

1994-06-28

Kwon, John T.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Specific casing or vane material

F01D 528

Patent

active

053241681

ABSTRACT:
The present invention is the use of stellite material for all contact surfaces between moving parts and a metering pump pumping silver photographic emulsion. All parts that are in contact with the solutions containing silver made of stellite will prevent failure of rotating assemblies due to metallic silver plateout between rotating parts. Prior art pumps exhibited silver plateout after very few hours of operation.

REFERENCES:
patent: 3576377 (1971-04-01), Beanland et al.
patent: 3797085 (1974-03-01), Aartman
patent: 4215976 (1980-08-01), Neumann
patent: 4318672 (1982-03-01), Hansen
patent: 4443152 (1984-04-01), Wong et al.
patent: 4470606 (1984-09-01), Knowles
patent: 4475866 (1984-10-01), Kambe et al.
patent: 4770606 (1988-09-01), Kuroiwa
patent: 5117633 (1992-06-01), Bayer et al.

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