Hang-free thread design

Details Hang-free thread design Hang-free thread design

2006-03-07

2006-03-07

Hewitt, James M. (Department: 3679)

Pipe joints or couplings

Particular interface

Tapered

C285S334000, C285S390000

Reexamination Certificate

active

07007984

ABSTRACT:
A threaded pin and box connection having thread geometries and/or dissimilar thread fits that prevent the pin thread of a connection from hanging up in the box thread as the pin is being stabbed into or destabbed from the box. Dissimilar geometries and/or threads include dissimilar thread types, dissimilar leads, overlapping leads, thread tooth widths of one component greater than thread grooves of the other component, multiple start threads, and combinations thereof.

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