Granted Patent B2

US 12,420,384 · App. 17/884,256 · Granted Sep 23, 2025

Inventor: Devin W. Herritz (Sussex, WI)

Assignee: Milwaukee Electric Tool Corporation

B25B13/483

Abstract

Claims (43)

1. A socket for engaging a spark plug, the socket comprising:

a tool engaging portion; and

a workpiece engaging body coupled to the tool engaging portion, the workpiece engaging body having a sidewall that defines a socket chamber; and

an insert positioned within the socket chamber, the insert having a first component comprising a first material and a second component comprising a second material;

wherein the first component has an exterior surface that is coupled to the sidewall of the workpiece engaging body such that the insert is maintained within the socket chamber;

wherein the second component is positioned within the first component;

wherein the second component defines an opening that is surrounded by the first component and the second component;

wherein the second material is more compliant than the first material and is positioned to engage an outer surface of the spark plug; and

wherein, when a spark plug is inserted into the socket chamber, the spark plug is received within the opening; and

wherein the second component defines a cylindrical structure comprising an exterior surface that engages the first component.

2. The socket of claim 1 , wherein the exterior surface of the first component is coupled to the sidewall of the workpiece engaging body via a friction fit.

3. The socket of claim 1 , wherein the workpiece engaging body is a hex socket, and wherein the tool engaging portion is a drive socket.

4. The socket of claim 1 , wherein the workpiece engaging body comprises a third material, wherein the first material comprises a first polymer material, wherein the second material comprises a second polymer material, wherein the third material comprises a metal material, and wherein the workpiece engaging body is integrally formed with the tool engaging portion.

5. A tool for engaging a spark plug, the tool comprising:

a drive socket;

a collar that extends from the drive socket; and

a workpiece engaging body that extends from the collar, the workpiece engaging body comprising:

a sidewall that defines a socket chamber, and

an insert positioned within the socket chamber, the insert having a first component comprising a first material and a second component comprising a second material;

wherein the second component nests within the first component; and

wherein the second material is softer than the first material and is configured to engage the spark plug; and

wherein the first component has a first cylindrical structure having an interior surface and an exterior surface, wherein the exterior surface engages the sidewall of the socket chamber.

6. The tool of claim 5 , wherein the insert is coupled to the socket chamber via a friction fit between the exterior surface of the first cylindrical structure and the sidewall of the socket chamber.

7. The tool of claim 5 , wherein the second component has a second cylindrical structure having an exterior surface that engages the interior surface of the first component.

8. The tool of claim 5 , wherein the interior surface of the first component further comprises an interior sidewall surface and interior annular flange that extends from the interior sidewall surface, wherein the second component further comprises an exterior annular ledge, and wherein the exterior annular ledge nests against the interior annular flange.

9. The tool of claim 8 , wherein the second component further comprises a compliant flange configured to engage the spark plug, wherein the compliant flange extends inwardly toward a center of the second component.

10. The tool of claim 9 , wherein the compliant flange is annular.

11. The tool of claim 5 , wherein the workpiece engaging body is a hex socket.

12. A tool for engaging a spark plug, the tool comprising:

a tool engaging portion;

a collar that extends from the tool engaging portion; and

a workpiece engaging body that extends from the collar, the workpiece engaging body comprising:

a sidewall that defines a socket chamber, and

an insert coupled to the sidewall of the socket chamber via a friction fit between an outer surface of the insert and the sidewall, the insert having a first component comprising a first material and a second component comprising a second material;

wherein the second component is positioned within the first component;

wherein the second material is more elastic than the first material and is configured to engage the spark plug; and

wherein the second component defines an opening configured to receive and engage a spark plug; and

wherein the second component includes an annular flange that extends inwardly toward a center of the second component.

13. The tool of claim 12 , wherein the annular flange comprises a compliant material configured to grip the spark plug.

14. The tool of claim 12 , wherein the first component defines a first hollow structure comprising a first mating element, and wherein the second component defines a second hollow structure comprising a second mating element that engages the first mating element.

15. The tool of claim 14 , wherein the first hollow structure comprises a first sidewall having an interior sidewall surface, wherein the second hollow structure comprises a second sidewall having an exterior sidewall surface, wherein the first mating element comprises a cavity defined within the interior sidewall surface of the first component, and wherein the second mating element comprises a protrusion that extends outwardly from the exterior sidewall surface of the second component and corresponds to the cavity defined within the interior sidewall surface of the first component.

16. The tool of claim 15 , wherein the cavity extends through the first sidewall, defining an opening in the first sidewall.

17. The tool of claim 12 , wherein the workpiece engaging body is a socket.

Assignments (1)

Continuity (3)

References Cited (47)