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.

Date of Patent:
Jul. 14, 2015

Filed:

Sep. 08, 2009
Applicants:

Elmar Koch, Eslohe, DE;

Dieter Wurm, Kirchhundem, DE;

Rouwen Homringhaus, Lennestadt, DE;

Sebastian Fischer, Lennestadt, DE;

Inventors:

Elmar Koch, Eslohe, DE;

Dieter Wurm, Kirchhundem, DE;

Rouwen Homringhaus, Lennestadt, DE;

Sebastian Fischer, Lennestadt, DE;

Assignee:

TRACTO-TECHNIK GMBH & CO., Lennestadt, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 55/10 (2006.01); B65D 59/06 (2006.01); E21B 17/042 (2006.01); F16L 15/06 (2006.01);
U.S. Cl.
CPC ...
E21B 17/042 (2013.01); E21B 17/0426 (2013.01); F16L 15/06 (2013.01);
Abstract

A threaded plug for a threaded connection includes a core having an exterior thread. At least one flank of the exterior thread forms a segment of an ellipse, wherein the segment of the ellipse extends continuously from a root of the thread to a corresponding crest of the thread. A threaded connection can be formed by combining the threaded plug with a threaded bushing having an interior thread constructed to engage with the exterior thread of the threaded plug.


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