Pipe gripping apparatus with interlocking plates

Details Pipe gripping apparatus with interlocking plates Pipe gripping apparatus with interlocking plates

1982-07-19

1984-10-23

Sakran, Victor N.

Tool driving or impacting

Advance causing or controlling means

Tool advances relative to drive

173159, 254 29R, B23Q 5027, B23Q 5033

Patent

active

044782926

ABSTRACT:
In accordance with an illustrative embodiment of the present invention, the individual slip members of a pipe handling apparatus are maintained in substantially the same horizontal plane by plate members attached to the top of the respective slip members, each of said plate members having projecting portions that overlap and engage the projecting portions of an adjacent plate member. The maintenance of the slip members in substantially the same horizontal plane assures uniform engagement of the teeth thereof with the outer wall of a pipe.

REFERENCES:
patent: 1234041 (1917-07-01), Knapp
patent: 1455142 (1923-05-01), Loyd
patent: 1560701 (1925-11-01), Layton
patent: 1693478 (1928-11-01), Davis
patent: 1908421 (1933-05-01), Heggem
patent: 2290799 (1942-07-01), Brauer
patent: 2431165 (1947-11-01), Buckingham
patent: 3096075 (1963-07-01), Brown
patent: 3531836 (1970-10-01), Crickmer
patent: 3722603 (1973-03-01), Brown
patent: 4269277 (1981-05-01), Baugh

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