Hydraulic tool with wobble plate transmission

Details Hydraulic tool with wobble plate transmission Hydraulic tool with wobble plate transmission

2006-05-04

2008-09-30

Lazo, Thomas E (Department: 3745)

Power plants

Pressure fluid source and motor

Ram driven by fluid pumped from reservoir

C092S012200

Reexamination Certificate

active

07428812

ABSTRACT:
A hydraulic tool including a motor; a hydraulic pump comprising only one reciprocating piston pump member; and a transmission connecting the motor to the hydraulic pump. The transmission includes a wobble plate and at least one spring. The wobble plate includes a front end pivotably connected to a frame of the pump. A rear end of the piston pump member is located against the front end of the wobble plate. The spring is spaced from the piston pump member and applies a biasing force against the front end of the wobble plate.

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patent: 6446482 (2002-09-01), Heskey et al.
patent: 6453719 (2002-09-01), Heskey et al.

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