Fluid actuated pipe clamp tightener

Details Fluid actuated pipe clamp tightener Fluid actuated pipe clamp tightener

1990-09-13

1991-05-07

Bryant, III, James E.

Pipes and tubular conduits

Longitudinally seamed

Sectional

138 99, 24 68CT, 59 93, F16L 5516

Patent

active

050128426

ABSTRACT:
The tightener comprises a scissor clamp having first and second arms pivotally connected at their upper ends. At their lower ends, the arms are pivotally connected with the ends of a loop of chain that encircles a pair of semi-circular steel shells encircling a pipeline. The rod of a cylinder is pivotally connected to move the front arm toward the rear arm. The cylinder is positioned to operate generally perpendicularly relative to the arms.

REFERENCES:
patent: 1971649 (1934-08-01), Furman et al.
patent: 2182258 (1939-12-01), Kirk
patent: 2586057 (1971-06-01), Lambert
patent: 4057082 (1977-11-01), King
patent: 4172472 (1979-10-01), Parrish
patent: 4535822 (1985-08-01), Rogers

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