IP Library Granted Patent US 10,202,778
Granted Patent B2
US 10,202,778 · App. 15/787,831 · Granted Feb 12, 2019

Drywall repair kit and method

Inventors: Richard M. Davidian (Pickens, SC); Lauren Spratte (Decatur, GA)
Assignee: TTI (MACAO COMMERCIAL OFFSHORE) LIMITED
E04G23/0207B23B51/0426B23B2226/57B23B2251/60
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Quick Facts
Patent No.
US 10,202,778
App. No.
15/787,831
Granted
Feb 12, 2019
Kind
B2
Abstract

A method to repair a damaged area of a workpiece with a repair kit includes rotating an arbor to drive a cutting member about a central axis of the arbor, cutting a hole in the workpiece with the cutting member, engaging the workpiece with the cutting member as the hole is cut to secure the cutting member within the hole, disconnecting the arbor from the cutting member, and leaving the cutting member in the workpiece to plug the hole.

Claims (37)

1. A method for repairing a damaged area of a workpiece with a repair kit including an arbor and a cutting member removably coupled to the arbor, the arbor having an abutment surface, the cutting member having a side wall, an end cap coupled to a first end of the side wall and abutting the abutment surface of the arbor, and a plurality of cutting elements coupled to a second end of the side wall, the method comprising:

rotating the arbor to drive the cutting member about a central axis of the arbor;

cutting a hole in the workpiece with the cutting member;

engaging the workpiece with the cutting member as the hole is cut to secure the cutting member within the hole;

disconnecting the arbor from the cutting member; and

leaving the cutting member in the workpiece to plug the hole.

2. The method of claim 1 , wherein the abutment surface of the arbor extends radially beyond the end cap of the cutting member to form a lip, and wherein cutting the hole includes driving the cutting member axially into the workpiece until the lip engages the workpiece.

3. The method of claim 1 , wherein the cutting member defines a plurality of drive apertures in the end cap, wherein the arbor includes a plurality of drive protrusions extending from the abutment surface, wherein rotating the arbor to drive the cutting member includes receiving the plurality of drive protrusions in the plurality of drive apertures, and wherein disconnecting the arbor from the cutting member includes withdrawing the plurality of drive protrusions from the plurality of drive apertures.

4. The method of claim 1 , wherein the cutting member includes a thread extending circumferentially around the side wall, and wherein engaging the workpiece with the cutting member includes engaging with the workpiece with the thread as the cutting member cuts the hole.

5. The method of claim 4 , wherein the thread is positioned closer to the first end of the side wall than to the second end of the side wall so that an area of the side wall adjacent to the second end does not include the thread.

6. The method of claim 1 , wherein the arbor includes a grip extending from a surface of the arbor opposite the abutment surface, and wherein rotating the arbor includes engaging the grip to manually turn the arbor.

7. The method of claim 1 , further comprising coupling the arbor and the cutting member to a drill, and wherein rotating the arbor includes rotating the arbor with the drill.

8. The method of claim 1 , wherein the repair kit includes a pilot drill bit coupled to the arbor and extending through a central aperture of the end cap, wherein cutting the hole in the workpiece includes engaging the workpiece with the pilot drill bit, and wherein disconnecting the arbor from the cutting member includes removing the pilot drill bit from the central aperture of the end cap.

9. The method of claim 1 , further comprising:

applying spackle over the hole and the cutting member to create a spackled area;

sanding the spackled area to be flush with an adjacent surface of the workpiece; and

applying a coating to the spackled area of the workpiece.

10. The method of claim 1 , further comprising:

selecting a guide member sized to sufficiently cover the damaged area of the workpiece;

positioning the guide member over the damaged area; and

guiding the cutting member to cut the hole at the damaged area of the workpiece using the guide member.

11. The method of claim 10 , wherein guiding the cutting member includes receiving the guide member within a cavity defined by the side wall of the cutting member.

12. The method of claim 10 , wherein the guide member includes a central projection that extends axially away from the end cap of the cutting member, and wherein positioning the guide member over the damaged area includes pressing the central projection into the workpiece.

13. The method of claim 12 , wherein the repair kit includes a pilot drill bit coupled to the arbor and extending through the end cap of the cutting member, and wherein guiding the cutting member includes inserting the pilot drill bit through an aperture of the central projection of the guide member.

14. A method for repairing a damaged area of a workpiece with a repair kit including an arbor, a cutting member removably coupled to the arbor, and a guide member, the arbor having an abutment surface, the cutting member having a side wall, an end cap coupled to a first end of the side wall and abutting the abutment surface of the arbor, and a plurality of cutting elements coupled to a second end of the side wall, the method comprising:

coupling a drill to the arbor;

positioning the guide member over the damaged area of the workpiece;

rotating the arbor with the drill to drive the cutting member about a central axis of the arbor;

cutting a hole in the workpiece with the cutting member as the arbor is rotated by the drill;

engaging the workpiece with the cutting member as the hole is cut to secure the cutting member within the hole, the cutting member including a thread extending circumferentially around the side wall to secure the cutting member within the hole;

disconnecting the arbor from the cutting member; and

leaving the cutting member in the workpiece to plug the hole.

15. The method of claim 14 , further comprising receiving the guide member within a cavity defined by the side wall of the cutting member to guide the cutting member to cut the hole at the damaged area of the workpiece.

16. The method of claim 14 , further comprising:

applying spackle over the hole and the cutting member to create a spackled area;

sanding the spackled area to be flush with an adjacent surface of the workpiece; and

applying a coating to the spackled area of the workpiece.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2018
From: DAVIDIAN, RICHARD M.; SPRATTE, LAUREN
To: AC (MACAO COMMERCIAL OFFSHORE) LIMITED
Reel/Frame 045820/0950 →
CHANGE OF NAME Recorded May 16, 2018
From: AC (MACAO COMMERCIAL OFFSHORE) LIMITED
To: TTI (MACAO COMMERCIAL OFFSHORE) LIMITED
Reel/Frame 045821/0337 →
Continuity (4)
Division 15071351 · Mar 16, 2016
Provisional Application 62256379 · Nov 17, 2015
Provisional Application 62133795 · Mar 16, 2015
Related Publication 20180051476A1 · Feb 22, 2018
Cited By (2)
US 1,092,168 US 12,697,667