Hydraulically operated crimping tool

Details Hydraulically operated crimping tool Hydraulically operated crimping tool

1980-09-10

1982-07-20

Crosby, Gene

Metal deforming

With means to drive tool

Including pneumatic- or fluid-actuated tool support

60479, 72410, 72416, 7245302, 81301, B21D 706

Patent

active

043399428

ABSTRACT:
A hydraulically operated crimping tool (1) for attaching an electrical connector to an electrical conductor, consisting of a hydraulic oil reservoir (27), which is connected to a pump unit (26) which when operated will pump oil under pressure into an enclosed space (25), into which is introduced a pin (1k), said pin being so arranged as to move out of the space as pressure is applied. Upon the initial activation of the pump unit (26) oil is pumped into a small space (24) of small area and volume, where a small quantity of oil will produce large movement of the pin (1k). This movement will then cause a second enclosed space (25) of greater area and of greater volume to be filled with oil. As resistance begins to occur to the movement of the pin (1k) the pump unit (26) will pump the quantity of oil to the second enclosed space (25) of greater area.

REFERENCES:
patent: 3740952 (1973-06-01), Fujii
patent: 4136549 (1979-01-01), Lytle
patent: 4151720 (1979-05-01), Vanderstappen
patent: 4226110 (1980-10-01), Suganuma

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