Abstract: A self-propelled, and winch assisted, steerable vibratory plow for laying underground pipe or cable, having a V-shaped blade connected to an oscillator which provides both elliptical and horizontal plow blade motion as needed, and with auxiliary straight blade plows for laying lateral lines on the sides of the main line. The main plow's gasoline engine powers a hydraulic system which powers the winch and a transaxle connected to the forward drive wheels, and powers the oscillator and a steering cylinder, as well as powering a hydraulic cylinder for lowering and raising the plow blade.
Type:
Grant
Filed:
September 3, 1996
Date of Patent:
August 10, 1999
Assignee:
Installation Systems, A California Limited Liability Company
Inventors:
Paul M. Hunter, Lemna J. Hunter, Paul Ekegren