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:
Sep. 06, 1977
Filed:
Sep. 01, 1976
Thomas Lee Taylor, Odessa, TX (US);
Other;
Abstract
An auger for boring holes through the surface of the earth. The auger is provided with a double flight which concurrently spirals about the hub of the auger, with the leading edges of the flights being arranged in opposition to one another. Digging teeth are mounted in spaced relationship within the leading edge of each flight, with the innermost tooth of each opposed flight being located 180.degree. apart, at different radii, and at different elevations respective to one another. Other teeth are spaced 180.degree. apart and located in each leading edge. The teeth are angularly displaced from the innermost teeth and arranged at different vertical elevations and different radii respective to one another. Additional teeth may be positioned on the leading edge of either flight. Adjacent teeth located in the leading edge of either flight are progressively spaced radially and vertically respective to one another. This unique arrangement of the digging teeth provides a step-type auger wherein adjacent teeth of one flight cut spaced-apart trenches, while teeth located on the opposed flight cut the area located between the trenches.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile