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:
Nov. 07, 2023
Filed:
Mar. 09, 2021
Applicant:
Vermeer Manufacturing Company, Pella, IA (US);
Inventors:
Michael D. Langenfeld, Pella, IA (US);
Jacob Richard Smith, Atloona, IA (US);
Assignee:
Vermeer Manufacturing Company, Pella, IA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 3/00 (2006.01); E21B 17/18 (2006.01); E21B 7/04 (2006.01); E21B 17/046 (2006.01); E21B 7/02 (2006.01); E21B 7/06 (2006.01); E21B 17/07 (2006.01); E21B 19/16 (2006.01); E21B 3/02 (2006.01);
U.S. Cl.
CPC ...
E21B 7/06 (2013.01); E21B 3/02 (2013.01); E21B 7/02 (2013.01); E21B 7/046 (2013.01); E21B 7/062 (2013.01); E21B 17/046 (2013.01); E21B 17/07 (2013.01); E21B 17/18 (2013.01); E21B 19/16 (2013.01);
Abstract
A flow collar for use on a dual rod drill rod assembly includes an uphole end defined in part by a first interior portion having a first interior diameter and a downhole end defined in part by a second interior portion having a second interior diameter that is larger than the first interior diameter. The flow collar further includes a plurality of radially-extending peripheral fluid passages extending through the flow collar to the second interior portion. An outer rod interfacing surface defines a continuous annular surface with a constant outer diameter.