US 10,240,402 B1Granted

End fitting for sucker rods

AssigneeEndurance Lift Solutions, LLC

InventorsKarol Hrici{hacek over (s)}ák, Ryan Scott Gernentz

Life of this patent

Estimating the term…

Loading patent…

Abstract

The disclosure relates to an end fitting attachable to an end of a sucker rod. The end fitting includes a generally cylindrical body including a receptacle portion and a coupling portion along a longitudinal axis. The receptacle portion includes a receptacle extending inwardly from an open end surface of the body along the longitudinal axis for receiving the sucker rod end therein. The receptacle includes a plurality of wedge portions disposed therein and the coupling portion extends from a coupling end surface of the body opposite the open end surface. The wedge portions each have a peak portion, a first angled portion and a second angled portion. Each second angled portion has an angle with respect to the longitudinal axis wherein each angle of the second angled portions increases from the open end surface of the receptacle portion toward the coupling portion of the end fitting.

Claims16

Dependent claims

A sucker rod and end fitting assembly comprising:

a sucker rod including a sucker rod end;
and
an end fitting secured to the sucker rod end, wherein the end fitting comprises:
a generally cylindrical body including a receptacle portion and a coupling portion along a longitudinal axis;
the receptacle portion having a receptacle extending inwardly from an open end surface of the body along the longitudinal axis for receiving the end of the sucker rod therein, the receptacle having a plurality of successive wedge portions disposed therein;
the coupling portion extending from a coupling end surface of the body opposite the open end surface, and configured to connect the end fitting to another component;
the wedge portions each have a peak portion, a first angled portion and a second angled portion;
and
the second angled portions each have an angle with respect to the longitudinal axis wherein each angle of the second angled portions increases in the direction from the open end surface of the receptacle portion toward the coupling portion of the end fitting, the second angled portions of each wedge creates a series of successive second angled portions, the difference in angle of each pair of successive second angled portions is greater than the difference in angle of each adjacent pair of successive second angled portions.

6 more elements

An end fitting attachable to an end of a sucker rod, comprising:

a generally cylindrical body including a receptacle portion and a coupling portion along a longitudinal axis;
the receptacle portion having a receptacle extending inwardly from an open end surface of the body along the longitudinal axis for receiving the sucker rod end therein, the receptacle having a plurality of wedge portions disposed therein;
the coupling portion extending from a coupling end surface of the body opposite the open end surface, and configured to connect the end fitting to another component;
the wedge portions each have a peak portion, a first angled portion and a second angled portion;
and
the second angled portions each have an angle with respect to the longitudinal axis wherein each angle of the second angled portions increases in the direction from the open end surface of the receptacle portion toward the coupling portion of the end fitting, the second angled portions of each wedge creates a series of successive second angled portions, the difference in angle of each pair of successive second angled portions is greater than the difference in angle of each adjacent pair of successive second angled portions.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/971,622Filed 4 May 2018 · continuation
Priority: 27 Dec 2017
Granted: 26 Mar 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

E21B 17/046
Between rod or the like and bit or between rod and rod or the like: with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet…
F04B 47/026
The driving mechanisms being situated at ground level: pull rods, full rod component parts
F16B 11/008
By gluing: of tubular elements or rods in coaxial engagement
E21B
Earth or rock drilling