Pipe joints or couplings – Deformed
Reexamination Certificate
2005-02-01
2005-02-01
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
Deformed
C285S351000, C285S347000, C285S187000, C029S508000, C029S516000
Reexamination Certificate
active
06848725
ABSTRACT:
A thermal expansion connection for rigid pipes in low-pressure applications subject to thermal expansion and shrinkage. The connection is formed between the distal end of a first rigid pipe received within the proximal end of a second rigid pipe. At least one seal is disposed between the first and second rigid pipes to prevent fluid communication through the connection. The second rigid pipe defines a collar at the proximal end thereof for receiving the distal end of the first rigid pipe and the seals. The first rigid pipe distal end defines a radial recess for receiving and maintaining the position of each seal. A gap is defined between the first rigid pipe distal end and the second rigid pipe collar to allow for thermal expansion and contraction of the first and second rigid pipes.
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Logan Dan T.
Matt Walter J.
Morehouse Wallace B.
Yates Steven E.
DWWS, LLC
Hewitt James M.
Pitts & Brittian PC
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