Dual string spider

Details Dual string spider Dual string spider

1980-12-15

1983-05-03

Hafer, Robert A.

Buckles, buttons, clasps, etc.

Strap-end-attaching devices

Buckle connected

24263DA, 24263CA, 166 75A, 294102A, A44B 2100, E21B 1907

Patent

active

043815847

ABSTRACT:
A dual string spider having a body of two halves pivotally secured at one side and releasably secured at the other side with bowls extending through the body and open to each other, gripping means for each bowl, an actuator for each gripping means, and bars extend through the body halves to divide the bowls and to center well strings in their respective bowls.

REFERENCES:
patent: 1502628 (1924-07-01), Hanna
patent: 2572318 (1951-10-01), Church
patent: 2612671 (1952-10-01), Martin
patent: 3154146 (1964-10-01), Brown
patent: 3330354 (1967-07-01), Chamblee
patent: 4354706 (1982-10-01), Coyle, Sr.

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