Valves and valve actuation – Reciprocating valve – Gate
Reexamination Certificate
2007-11-08
2010-12-07
Fristoe, Jr., John K (Department: 3753)
Valves and valve actuation
Reciprocating valve
Gate
C251S326000, C137S625250
Reexamination Certificate
active
07845620
ABSTRACT:
An outfeed gate includes a fixed plate and a sliding plate, wherein bearing strips protect the fixed and sliding plates from excessive wear as they slide over each other. The outfeed gate safely accepts material from a high temperature and pressure environment to an ambient environment, and deposits the material in a material exit apparatus.
REFERENCES:
patent: 4838312 (1989-06-01), Berchem et al.
patent: 4867202 (1989-09-01), Farmer
patent: 5069251 (1991-12-01), Dyer et al.
patent: 5938175 (1999-08-01), Young et al.
patent: 6116278 (2000-09-01), Baumgardner et al.
patent: 2006/0144980 (2006-07-01), Bouldin
Paragraphs [0004]-[0006] of present application, admitted to be prior art.
Beavers Lucian Wayne
Bouldin Corporation
Fristoe, Jr. John K
Waddey & Patterson , P.C.
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