Pipe joints or couplings – Packed – Screw thimble
Reexamination Certificate
2008-09-18
2010-06-01
Hewitt, James M (Department: 3679)
Pipe joints or couplings
Packed
Screw thimble
C285S014000, C285S093000, C285S339000
Reexamination Certificate
active
07726701
ABSTRACT:
A connecting mechanism for a thin stainless steel pipe and a joint includes a thin stainless steel pipe in which a chevron type projection portion is formed in an outer periphery of an end portion, a joint having an inner diameter inserting the thin stainless steel pipe and forming a male thread portion in an outer peripheral surface of an end portion, a nut having a fitting portion outwardly fitted to the thin stainless steel pipe so as to oppose to the joint on the boundary of the chevron type projection portion and having a female thread portion screwed to the male thread portion of the joint, and a packing provided between the joint and the thin stainless steel pipe wherein, a release groove is formed in a packing outer peripheral contact surface from the packing pressing surface constructing the inner side surface of the packing fitting portion of the joint to an opening end portion.
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English Translation of Japanese Utility Model Publication No. 2-37015.
Kazuharu Tsuneto
Koji Ohara
Hewitt James M
O.N. Industries Co., Ltd.
Thomas Kayden Horstemeyer & Risley LLP
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