Pipe joints or couplings – Screw thimble
Reexamination Certificate
2007-08-17
2009-11-17
Dunwoody, Aaron M (Department: 3679)
Pipe joints or couplings
Screw thimble
C285S093000, C604S533000, C604S535000
Reexamination Certificate
active
07618072
ABSTRACT:
A connection structure is provided having a female thread formed on the inner peripheral surface of a lock ring in a male connector engaging a male thread on the outer peripheral surface of a female connector when the male connector and the female connector are screwed to each other. Further, protrusion strips are formed on the rear side portion of the male thread on the outer peripheral surface of the female connector, and the notches that can engage with the protrusion strips are set on the tip portion of the lock ring. As a result, when the male thread and the female thread are screwed to each other, the screwed state is appropriate when the protrusion strips and notches are engaged with each other.
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European Search Report, Application No. 07113102.3-2310, dated Dec. 27, 2007, 6 pages.
Funamura Shigeaki
Kitani Ichiro
Dunwoody Aaron M
Kee Fannie
Tyco Healthcare Group LP
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