Internal tube gripping device

Handling: hand and hoist-line implements – Grapple – Expanding

Reexamination Certificate

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Details

C294S119000, C414S910000, C414S911000

Reexamination Certificate

active

07007992

ABSTRACT:
An internal tube gripping device having first and second gripping arms including elongated sections with a central axis and gripping ends attached thereto and angled sections extending non-parallel to the central axis and including connecting ends attached thereto. Pivotally attached to the first and second gripping arms are separately formed first and second link members each having first and second ends. At least one tensioning member is connected to the second ends of the first and second link members.

REFERENCES:
patent: 277532 (1883-05-01), Ash
patent: 473127 (1892-04-01), Plumb
patent: 485944 (1892-11-01), Jones
patent: 728110 (1903-05-01), Jenkins
patent: 764281 (1904-07-01), Duncan
patent: 950437 (1910-02-01), Coley
patent: 1171580 (1916-02-01), Atterbury
patent: 2610889 (1952-09-01), Penn
patent: 2778671 (1957-01-01), Langston
patent: 2794669 (1957-06-01), Schardinger
patent: 2923569 (1960-02-01), Milliron
patent: 4531771 (1985-07-01), Bullock
patent: 4576407 (1986-03-01), Lambert
patent: 2002/0096897 (2002-07-01), Cornardo et al.
patent: 206065 (1968-11-01), None

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