Solid material comminution or disintegration – Apparatus – Comminuting surface provided with openings to permit...
Reexamination Certificate
2006-07-18
2006-07-18
Francis, Faye (Department: 3725)
Solid material comminution or disintegration
Apparatus
Comminuting surface provided with openings to permit...
C241SDIG017, C037S228000
Reexamination Certificate
active
07077346
ABSTRACT:
A method of and system for liquefying snow. The system includes a rotor-stator device mounted within a melting reservoir and having a slotted rotor and a slotted stator. Snow and/or ice is deposited in a water bath in the melting reservoir. The rotor rotates at high speed, hurling particles of crystalline snow from the tips of the rotor slots onto the perpendicular faces of the stator, thereby fracturing the crystals and promoting liquefication. The high mechanical forces generated during operation of the rotor-stator device also contribute a significant amount of heat that is applied directly to the snow. The system also includes ancillary assemblies, such as heat-exchangers and snow-transport means. The system is operable as a stationary unit or a mobile unit.
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The Kady Mill; Brochure of Kady International of Scarborough, Maine, Feb. 1998.
TRECAN Snow Melting Equipment; Brochure of Trecan Combustion Limited, Hubley, Nova Scotia (undated).
Bohan Thomas L.
Francis Faye
Mathers Patricia M.
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