IP Library Granted Patent US 9,839,995
Granted Patent B2
US 9,839,995 · App. 13/627,773 · Granted Dec 12, 2017

Drain removal tool

Inventor: James A. Kovach (Parma, OH)
Assignee: MAGNA INDUSTRIES, INC.
B25B13/5083B25B13/48
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Quick Facts
Patent No.
US 9,839,995
App. No.
13/627,773
Granted
Dec 12, 2017
Kind
B2
Abstract

A drain removal tool with a central opening aligned along a central tool axis, a holding section with a hex head for applying torque to the tool, and an engagement section including elongate sharp ridges or teeth extending in a helical pattern from an external surface of the engagement section from the tool for engagement with the drain to be removed. Each elongate sharp ridge has one flat face and a ramp face. Each flat face is aligned along a radius extending outwardly from the central tool axis. The ridges are spaced such that the distance between each flat face is approximately 6 degrees. Each helical ridge is a left hand helical serration on a 15 degree pitch with respect to the central axis of the central opening. The holding section includes a hex head configuration. The central opening in the holding section has a hex configuration.

Claims (17)

1. A drain removal tool having a central opening aligned along a central tool axis and extending through the entire tool, a non-threaded holding section for applying torque to the tool, the holding section including a flat sided hex head configuration and a flat top hammer surface, and a work piece or drain engagement section including sharp elongate teeth extending from a continuous, non-segmented external surface of the engagement section of the tool for engagement with the drain to be removed to a bottom surface of the engagement section, and the central opening in the engagement section has a substantially cylindrical opening, with a larger diameter than the central opening having, a polygonal cross sectional configuration in the holding section.

2. The drain removal tool of claim 1 , wherein the sharp teeth are elongate ridges in a helical pattern on the external surface of the engagement section of the tool.

3. The drain removal tool of claim 2 , wherein each elongate ridge has one flat face, which flat face is aligned along a radius extending outwardly from the central tool axis, and a ramped face.

4. The drain removal tool of claim 3 , wherein the teeth are spaced such that the distance between each flat face is approximately 6 degrees.

5. The drain removal tool of claim 2 , wherein the each helical tooth is a left hand helical serration on a 15 degree pitch with respect to the central axis of the central opening.

6. The drain removal tool of claim 2 , wherein the central opening in the holding section is a hex configuration.

7. The drain removal tool of claim 2 , wherein the central opening in the holding section is a square configuration.

8. A drain removal tool having a central opening aligned along a central tool axis and extending through the entire tool, a holding section having a flat sided hex head configuration for applying torque to the tool, and a top hammer surface, and a substantially cylindrical, non-segmented drain engagement section including elongate sharp ridges extending in a helical pattern from an external surface of the engagement section from the tool for engagement with the drain to be removed to a bottom surface of the engagement section, the central opening, having a substantially cylindrical opening in the engagement section, a polygonal cross sectional configuration in the holding section, and the central opening in the holding section has a smaller diameter than the substantially cylindrical opening in the engagement section.

9. The drain removal tool of claim 8 , wherein each elongate sharp ridge has one flat face, which flat face is aligned along a radius extending outwardly from the central tool axis, and a ramped face.

10. The drain removal tool of claim 9 , wherein the ridges are spaced such that the distance between each flat face is approximately 6 degrees.

11. The drain removal tool of claim 10 , wherein the each helical ridge is a left hand helical serration on a 15 degree pitch with respect to the central axis of the central opening.

12. The drain removal tool of claim 11 , wherein the central opening in the holding section is a hex configuration.

13. A drain removal tool having a central opening aligned along a central tool axis and extending through the entire tool, a holding section having a top hammer surface and a hex head for applying torque to the tool, and a substantially cylindrical, non-segmented work piece engagement section including elongate sharp ridges extending in a helical pattern from an external surface of the engagement section from the tool for engagement with the drain to be removed to a bottom surface of the engagement section, wherein the diameter of a polygonal cross sectional configuration of the central opening in the holding section is smaller than the diameter of a substantially cylindrical opening of the central opening in the engagement section, and each elongate sharp ridge has one flat face, which flat face is aligned along a radius extending outwardly from the central tool axis, and a ramped face.

14. The drain removal tool of claim 13 , wherein the ridges are spaced such that the distance between each flat face is approximately 6 degrees.

15. The drain removal tool of claim 14 , wherein the each helical ridge is a left hand helical serration on a 15 degree pitch with respect to the central axis of the central opening.

16. The drain removal tool of claim 15 , wherein the holding section includes a flat sided, external hex head configuration.

17. The drain removal tool of claim 16 , wherein the central opening in the holding section is a hex configuration.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 9, 2020
From: WORTHINGTON CYLINDERS WISCONSIN LLC
To: THE CH HANSON CO
Reel/Frame 053724/0307 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 6, 2019
From: MAGNA INDUSTRIES, INC.
To: WORTHINGTON CYLINDERS WISCONSIN, LLC
Reel/Frame 049391/0369 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 7, 2017
From: KOVACH, JAMES A
To: SUPERIOR TOOL CORPORATION
Reel/Frame 044058/0316 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 7, 2017
From: SUPERIOR TOOL CORPORATION
To: MAGNA INDUSTRIES, INC.
Reel/Frame 044058/0349 →
Continuity (2)
Provisional Application 61539095 · Sep 26, 2011
Related Publication 20130255452A1 · Oct 3, 2013