Cam-action pipe puller

Details Cam-action pipe puller Cam-action pipe puller

2007-06-19

2007-06-19

Mackey, Patrick (Department: 3652)

Handling: hand and hoist-line implements

Grapple

Expanding

C294S086250

Reexamination Certificate

active

10121411

ABSTRACT:
A cam-operated pipe puller for pulling and extracting a pipe through a conduit wherein the pipe puller has members for grasping the inner sides of the pipe and apparatus attached to the grasping members for holding the grasping members in a retained position as they are initially inserted into the pipe and for releasing and expanding the grasping members to engage the inner surface of the pipe after the grasping members are fully inserted into the pipe so as to pull and extract the pipe from and through the conduit.

REFERENCES:
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patent: 403230 (1966-06-01), None
patent: 24896 (1914-10-01), None
patent: 2080243 (1982-02-01), None
patent: 1407895 (1988-07-01), None

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