US 6,981,524 B2 | ||
Twist off drive for a tube plug | ||
Glenn F. Jorgensen, Ridgewood, N.J. (US) | ||
Assigned to JNT Technical Services, Inc., Little Ferry, N.J. (US) | ||
Filed on Nov. 26, 2003, as Appl. No. 10/723,666. | ||
Prior Publication US 2005/0109413 A1, May 26, 2005 | ||
Int. Cl. F16L 55/00 (2006.01) |
U.S. Cl. 138—89 | 21 Claims |
1. A tube plug kit comprising:
a tube plug having a housing member and a locking member, the housing member having a longitudinal bore comprising a smooth
portion communicating with a threaded portion, the locking member mounted on the housing member;
an insert member having a first threaded end portion received within the threaded portion of the bore, an enlarged portion
positioned to be drawn within the smooth portion of the longitudinal bore in response to rotation of the insert member in
the longitudinal bore and a drive portion configured to receive a torque applying tool in a rotationally driving manner; and
a torque limiting region located between said enlarged portion and said drive portion in said insert member to limit an amount
of torque said drive portion can transmit to said first threaded end portion.
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