Interior clamping device for tubular poles

Details Interior clamping device for tubular poles Interior clamping device for tubular poles

1987-10-21

1989-08-15

McCall, James T.

Joints and connections

Member ends joined by inserted section

Expansible section

248161, 248411, F16B 700

Patent

active

048569291

ABSTRACT:
An interior clamping device for tubular poles which includes a driver disposed in one tubular member with a tapered end portion projecting outwardly from the tubular member. An expandable sleeve is disposed in a second tubular member. Locking means removably secure the driver to the sleeve by a fastener so that when the driver is rotated in one direction the expandable sleeve is moved radially outwardly against the inner surface of the tube to lock the tubes together.

REFERENCES:
patent: 953896 (1910-04-01), Clattenburg
patent: 2282285 (1942-05-01), Olson
patent: 3004743 (1961-10-01), Wenger
patent: 3041695 (1962-07-01), Ouellette
patent: 3144736 (1964-08-01), Rusk et al.
patent: 3227113 (1966-01-01), Kupski
patent: 3431576 (1969-03-01), Moss et al.
patent: 3508773 (1970-04-01), Coberly et al.
patent: 4022287 (1977-05-01), Lundstrom et al.
patent: 4294560 (1981-10-01), Larkin
patent: 4371282 (1983-02-01), Sturm
patent: 4431096 (1984-02-01), Kloster

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