Electricity: conductors and insulators – Insulators – Through wall or plate
Reexamination Certificate
2011-01-11
2011-01-11
Patel, Dhiru R (Department: 2835)
Electricity: conductors and insulators
Insulators
Through wall or plate
C174S151000, C248S056000, C439S604000, C277S606000
Reexamination Certificate
active
07868255
ABSTRACT:
A sealing ring for a frusto-conical connection hole through a divider wall in an accumulator includes a plate which contacts one side of the divider wall and a sheath which extends through the connection hole, the sheath defining an outer surface which expands in frusto-conical fashion from a base at the plate to a free end and an inner surface which can be cylindrical or frusto-conical.
REFERENCES:
patent: 2309741 (1943-01-01), Woodward
patent: 4447103 (1984-05-01), Werth et al.
patent: 5814764 (1998-09-01), Kohaut
Dykema Gossett PLLC
Patel Dhiru R
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