Lifting tongs device

Details Lifting tongs device Lifting tongs device

1997-06-26

1998-12-01

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Pivoted jaws

294112, B66C 162

Patent

active

058427295

ABSTRACT:
A new lifting tongs device for lifting heavy sections of cylindrical pipe. The inventive device includes a first arm member pivotally coupled to a second arm member. A first gripping member having an arcuate pipe gripping surface is coupled to the lower end portion of the first arm member. Similarly, a second gripping member having an arcuate pipe gripping surface facing the arcuate pipe gripping surface of the first gripping member is coupled to the lower end portion of the second arm member. A first flexible member is attached to the upper end portions of the arm members to force the first gripping member arcuate pipe gripping surface towards the second gripping member arcuate pipe gripping surface to grip a cylindrical object disposed between them.

REFERENCES:
patent: 393680 (1888-11-01), Wiley
patent: 666474 (1901-01-01), De Wolfe
patent: 1128277 (1915-02-01), Adler
patent: 1825179 (1931-09-01), Collman et al.
patent: 1966240 (1934-07-01), Erdahl
patent: 2833433 (1958-05-01), Paananen

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