Pipe joints or couplings – With fluid pressure seal – With separate – encased pipe-gripping means
Reexamination Certificate
2006-09-18
2010-11-16
Hewitt, James M (Department: 3679)
Pipe joints or couplings
With fluid pressure seal
With separate, encased pipe-gripping means
C285S104000, C285S108000, C285S110000, C285S113000, C285S322000, C285S345000, C285S346000
Reexamination Certificate
active
07832773
ABSTRACT:
An invention generally relates to an adjustable connector that acts as a coupling device to connect an object (such as pipe or tubing) having a range of diameters and thread styles to an item (such as a piece of equipment or another length of pipe or tubing). The device is generally comprised of a casing member and an internal member, which is further comprised of tab members positioned in tab openings in a core member. Preferably, a semi-flexible sheath covers the internal member and seals it to the casing member and the object, so that a chamber is formed between the internal member and the casing member. Mechanical compression members may be placed in the chamber. As pressure increases within the object, the chamber pressure may also increase, forcing the sheath against the tab members, which are forced against the object, holding the object in place by friction.
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