Presses – With additional treatment of material – Heating – cooling – or drying
Reexamination Certificate
2005-11-23
2008-10-07
Nguyen, Jimmy T (Department: 3725)
Presses
With additional treatment of material
Heating, cooling, or drying
C100S323000, C100S326000, C100S215000, C100S245000
Reexamination Certificate
active
07430960
ABSTRACT:
An apparatus for removing foreign matters from construction waste. A feeding section is installed at a lower end of a hopper. A heating and compressing section has an entrance which is coupled to the feeding section and an exit which is defined at a lower end of the heating and compressing section. A shooter opening and closing section is coupled to the exit of the heating and compressing section. The heating and compressing section comprises a hollow casing having a vertical flange on a side thereof, a compression cylinder installed on the casing, a compression plunger fitted into the casing and coupled to a piston rod of the compression cylinder, and a band heater wound on a circumferential outer surface of and adjacent to a lower end of the casing.
REFERENCES:
patent: 2362701 (1944-11-01), Koehring
patent: 2408810 (1946-10-01), Puening
patent: 3833333 (1974-09-01), Britten
patent: 5542348 (1996-08-01), Bendzick
patent: 5873304 (1999-02-01), Ruf
patent: 6874411 (2005-04-01), Nakamura et al.
patent: 2005/0109226 (2005-05-01), Schroeder et al.
Levine & Mandelbaum
Nguyen Jimmy T
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