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:
May. 05, 2020
Filed:
Nov. 10, 2016
Dandelion Energy, Inc., Palo Alto, CA (US);
Raymond Louis Gradwohl, Saratoga, CA (US);
Jacques Gagne, Los Gatos, CA (US);
Dandelion Energy, Inc., Palo Alto, CA (US);
Abstract
The technology relates to systems and methods for creating openings in ground material in order to install ground loops for geothermal heating and cooling applications. As an example, a system for creating an opening in ground material may include a first drill head configured as a pipe pulling drill head and a second drill head configured for attachment with a boring tool. When attached to an end of a pipe, the first drill head is configured to pull the pipe into the opening in ground material. The second drill head may include a drilling portion and an opening opposite of the drilling portion, the opening including a first chamber that tapers towards a second chamber. The first drill head also includes a drilling end configured for a locking fit within the second chamber.