Presses – Reciprocating press construction – Oscillatory or hinged platen or piston
Reexamination Certificate
2006-08-17
2008-08-26
Nguyen, Jimmy T (Department: 3725)
Presses
Reciprocating press construction
Oscillatory or hinged platen or piston
C100S048000, C100S099000, C100S215000, C100S219000, C100S226000, C100S345000
Reexamination Certificate
active
07415925
ABSTRACT:
A refuse compactor especially designed for use in fast-food restaurant environments includes a hydraulic pump driven by an electric motor for actuating a hydraulic ram to compress restaurant waste materials. The compactor includes a unique outer support structure that derives strength from the outer housing skins to support a compaction plate assembly. The compaction plate assembly maintains the platen inclined at a predetermined angle to the vertical when the platen is elevated and which forces the platen to a horizontal disposition during a downward compaction stroke. A motor operated closure member selectively blocks and unblocks a refuse-receiving opening formed in a front door of the compactor unit and with a motion detector controlling the opening and closing of the refuse entry door panel.
REFERENCES:
patent: 4130054 (1978-12-01), Tashman
patent: 4548132 (1985-10-01), Moon
patent: 4552061 (1985-11-01), Brutsman
patent: 5517907 (1996-05-01), Fox
patent: 5713270 (1998-02-01), Fitzgerald et al.
patent: 6925928 (2005-08-01), Fox
Buhl Hardwick LLC
Nguyen Jimmy T
Nikolai & Mersereau , P.A.
Paige James J.
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