Extraction device for removing an adapter secured in a port

Patent metadata

Field	Value
Publication number	US-10174873-B2
Application number	US-201815905369-A
Country	US
Kind code	B2
Filing date	Feb 26, 2018
Priority date	Dec 26, 2011
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

This disclosure relates generally to couplings used in mining and other applications. An extraction device for removing an adapter from a port formed in a structure is provided. The extraction device may include an end wall and a side wall. The end wall may define an external face of the extraction device. The side wall may extend axially away from a periphery of the end wall. The side wall may terminate at an end face of the extraction device. The end face may have a larger dimension than the port so as to abut the structure adjacent to a periphery of the port. The side wall may include an inner surface and an outer surface. The inner surface may have a threaded portion.

First claim

What is claimed is:

1. A one-piece extraction device for removing an adapter from a port formed in a structure, the extraction device comprising:
an end wall defining an external face of the extraction device; and
a side wall extending axially away from a periphery of the end wall and terminating at an end face of the extraction device, the end face having a larger dimension than the port so as to abut the structure adjacent to a periphery of the port, the side wall including an inner surface and an outer surface, the inner surface having a helically threaded portion;
wherein the end wall closes one end of the side wall; and
wherein the inner surface includes a substantially cylindrical trailing non-threaded portion extending between the threaded portion and the end wall.

2. The extraction device of claim 1 wherein the inner surface includes a leading non-threaded portion extending between the end face and the threaded portion.

3. The extraction device of claim 2 wherein:
the threaded portion includes a major diameter that is radially aligned with the trailing non-threaded portion.

4. The extraction device of claim 3 wherein:
the leading non-threaded portion is substantially cylindrical; and
the threaded portion includes a major diameter that is radially aligned with the leading non-threaded portion.

5. The extraction device of claim 1 wherein the outer surface defines a shoulder proximate to the end face and oriented transversely to a longitudinal axis of the extraction device.

6. The extraction device of claim 5 wherein the shoulder is annular.

7. The extraction device of claim 1 further comprising a keyed engagement feature comprising a hex nut that projects axially away from the end wall.

8. A method of using the extraction device of claim 6 comprising:
positioning the extraction device around a portion of an adapter positioned at least partially in a port in a structure;
threadedly engaging the threaded portion with an external thread of the adapter by rotating the extraction device about the adapter;
abutting the end face of the extraction device against an external face of the structure;
axially extracting the adapter at least partially from the port by continuing to rotate the extraction device about the adapter after the end face of the extraction device is abutted against the external face of the structure.

9. The method of claim 8 further comprising:
engaging the external annular shoulder with a pry tool and thereby applying an axial force to move the extraction device axially away from the structure.

10. A one-piece extraction device for removing an adapter from a port in a structure and the adapter; wherein the adapter includes an externally non-threaded first portion received within the port and a second portion protruding from the port, the second portion including an external helical thread; the extraction device comprising:
an axially-extending side wall defining an inner space that receives the second portion of the adapter, the side wall including a leading edge that abuts an external face of the structure surrounding the port and an internal helical thread configured to threadedly engage the external helical thread of the adapter prior to abutment of the leading edge with the structure;
wherein the extraction device is operable to axially pull the adapter from the port;
wherein the extraction device further comprises an end wall extending inwardly from the side wall and defining a closed end of the side wall; and
wherein the side wall includes an internal substantially cylindrical non-threaded portion extending between the internal helical thread and the end wall.

11. The extraction device and adapter of claim 10 wherein the internal thread includes a major diameter that is radially aligned with the internal non-threaded portion.

12. The extraction device and adapter of claim 10 further comprising an engagement feature associated with the end wall and axially aligned with a longitudinal axis of the extraction device.

13. The extraction device and adapter of claim 12 wherein the engagement feature comprises a hex nut that projects axially away from the end wall.

14. The extraction device and adapter of claim 10 wherein the side wall includes an external, annular shoulder proximate to the leading edge.

15. The extraction device and adapter of claim 10 wherein the side wall is substantially cylindrical.

16. The extraction device and adapter of claim 10 wherein the first portion of the adapter includes multiple facets that collectively extend around an entire periphery of the adapter.

17. A method of using the extraction device of claim 10 to remove the adapter of claim 10 from the port defined by the structure, the method comprising:
positioning the extraction device around a portion of the adapter;
threadedly engaging the internal thread of the extraction device with the external thread of the adapter by rotating the extraction device about the adapter;
abutting the leading edge of the extraction device against the external face of the structure;
axially extracting the adapter at least partially from the port by continuing to rotate the extraction device about the adapter after the leading edge of the extraction device is abutted against the external face of the structure.

18. The method of claim 17 further comprising advancing the extraction device axially along the adapter toward the structure prior to abutting the leading edge against the structure by continuing to rotate the extraction device about the adapter.

19. The method of claim 18 further comprising engaging an external annular shoulder positioned proximate to the leading edge of the extraction device with a pry tool and thereby applying an axial force to move the extraction device axially away from the structure.

Assignees

• Gates Corp

Inventors

• Gilbreath Donald R

Classifications

• Y10T29/49948

  Multipart cooperating fastener [e.g., bolt and nut] · CPC title

• F16B39/02

  in which the locking takes place after screwing down (F16B39/01 takes precedence; split-pins, circlips, or the like for preventing relative axial movement only F16B21/10; fastening nuts by welding or riveting F16B37/06) · CPC title

• F16L19/02

  Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member · CPC title

• F16L2201/10

  Indicators for correct coupling · CPC title

• B25B27/02

  for connecting objects by press fit or detaching same {(B25D1/16 takes precedence)} · CPC title