Handling: hand and hoist-line implements – Grapple – Expanding
Patent
1998-03-05
1999-11-23
Kramer, Dean J.
Handling: hand and hoist-line implements
Grapple
Expanding
B66C 156
Patent
active
059887192
ABSTRACT:
A pulling device for use with a pipe having an inside wall. The device includes a center slide. The device further includes at least one gripper plate that is adapted to cooperatively engage the center slide to cause the gripper plate to expand outwardly with respect to the center slide. The gripper plate includes a plurality of rings for engaging the inside wall of the pipe. The device further includes a pulling eye attached to the center slide to which a swivel or a cable can be attached to pull the device.
REFERENCES:
patent: D256544 (1980-08-01), Hintze
patent: 1625909 (1927-04-01), Price
patent: 1897561 (1933-02-01), Manucci et al.
patent: 2184681 (1939-12-01), Osmun et al.
patent: 2487456 (1949-11-01), Lowrey
patent: 2939739 (1960-06-01), Grunsky
patent: 3036855 (1962-05-01), Siracusa
patent: 3492032 (1970-01-01), Deike
patent: 3507028 (1970-04-01), Stellatella
patent: 3662451 (1972-05-01), Wagner
patent: 3709546 (1973-01-01), Vaughan
patent: 3902236 (1975-09-01), Deem
patent: 4095335 (1978-06-01), Lassarat
patent: 4299531 (1981-11-01), Seale et al.
patent: 4571802 (1986-02-01), Calhoun et al.
patent: 4659126 (1987-04-01), Breck et al.
patent: 4746158 (1988-05-01), Fields
patent: 5094496 (1992-03-01), King, Sr.
patent: 5138754 (1992-08-01), Casteel et al.
patent: 5168623 (1992-12-01), Rabe
patent: 5190334 (1993-03-01), Sawdon
patent: 5207730 (1993-05-01), Ruggiero
patent: 5439235 (1995-08-01), Blackwell
patent: 5490313 (1996-02-01), Ashbrook
patent: 5533246 (1996-07-01), Ashbrook
patent: 5621966 (1997-04-01), Kvenvold et al.
patent: 5647627 (1997-07-01), Baessler
Brochure entitled "SWIPUL Innerduct Swivel/Pulling Eye", published by Dura-Line Corporation, dated 1995.
Brochure entitled "Fixed Head Innerduct Pulling Eyes", Published By Condux International, Inc., dated 1996.
Aeroquip-Vickers, Inc.
Kramer Dean J.
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