Valve with ceramic discs

Details Valve with ceramic discs Valve with ceramic discs

2007-10-26

2010-06-01

Bastianelli, John (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C251S208000, C251S292000, C251S304000, C251S340000

Reexamination Certificate

active

07726338

ABSTRACT:
A valve comprises a housing and at least three ceramic discs in the housing such that at least two fixed ceramic discs are provided and at least one rotatable ceramic disc is provided between the fixed ceramic discs. The ceramic discs comprise through holes such that when the holes are aligned, the valve is open, and turning the rotatable ceramic disc turns the holes to be misaligned in successive ceramic discs, which prevents water flow through the valve. The valve further comprises a handle for rotating a rotatable ceramic disc and the handle comprises a stem extending through the housing, and a curved part, the curved part curving at least partly around the housing along the circumference of the housing.

REFERENCES:
patent: 3630484 (1971-12-01), Taylor
patent: 3812882 (1974-05-01), Taylor
patent: 4549579 (1985-10-01), Bergmann
patent: 4554943 (1985-11-01), Claney et al.
patent: 4554948 (1985-11-01), Bergmann
patent: 4674537 (1987-06-01), Bergmann
patent: 4848403 (1989-07-01), Pilolla et al.
patent: 4934654 (1990-06-01), Linnemann
patent: 5127438 (1992-07-01), Williams
patent: 5236006 (1993-08-01), Platusich et al.
patent: 2006/0086923 (2006-04-01), Shank et al.

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