Metal working – Method of mechanical manufacture – Gas and water specific plumbing component making
Reexamination Certificate
2002-03-27
2008-08-26
Bryant, David P. (Department: 3726)
Metal working
Method of mechanical manufacture
Gas and water specific plumbing component making
C029S505000, C029S509000, C029S510000, C029S521000, C285S133110, C285S179000, C285S205000, C285S382000, C285S420000
Reexamination Certificate
active
07415765
ABSTRACT:
An object of the present invention is to provide a flange coupling in which the height of a horizontal portion of an L-shaped pipe is made as small as possible. The present invention provides a flange coupling having a flange formed with an attaching bolt hole and a pipe connection hole and an L-shaped pipe installed in the pipe connection hole, wherein the L-shaped pipe is made of aluminum or aluminum alloy, and a horizontal portion of the L-shaped pipe is molded so that a lower face thereof is at the same level as or at the level close to a plane including the upper surface of the flange.
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Bryant David P.
Lerner David Littenberg Krumholz & Mentlik LLP
Ohtsuka Co., Ltd.
Taousakis Alexander P
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