The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 1999
Filed:
Sep. 03, 1996
Paul M Hunter, Carlsbad, CA (US);
Lemna J Hunter, Albuquerque, NM (US);
Paul Ekegren, Edgewood, NM (US);
Installation Systems, A California Limited Liability Company, Carlsbad, CA (US);
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.