John David Estes

US Patent:

6490773, Dec 10, 2002

Filed:

Jun 29, 2001

Appl. No.:

09/896464

Inventors:

John Howard Estes - Spring TX

Assignee:

Matrix Tool, Inc. - Spring TX

International Classification:

B23B 4516

US Classification:

29275

Abstract:

A tool for driving and setting a nail-in anchor into concrete. The tool has a drive pin which can be locked and unlocked. When the drive pin is locked, the tool, used with a hammer, will drive only the anchor sleeve into a pre-drilled hole in concrete. When the drive pin is then unlocked, the tool, again used with a hammer, will nail the nail into the sleeve and set the anchor. The tool can be manipulated using only one hand. The tool typically has a thumb cap which, when rotated, locks and unlocks the drive pin. The tip of the tool is machined to have a concave shape for fitting over the convex-shaped dome of a typical nail-in anchor. The outer surfaces of the tool can have knurls to improve handling.

US Patent:

6553640, Apr 29, 2003

Filed:

Sep 20, 2002

Appl. No.:

10/247931

Inventors:

John Howard Estes - Spring TX

Assignee:

Matrix Tool, Inc. - Spring TX

International Classification:

B23B 4516

US Classification:

294265, 29428, 29525, 2952501, 29275

Abstract:

A tool for driving and setting a nail-in anchor into concrete. The tool has a drive pin which can be locked and unlocked. When the drive pin is locked, the tool, used with a hammer, will drive only the anchor sleeve into a pre-drilled hole in concrete. When the drive pin is then unlocked, the tool, again used with a hammer, will nail the nail into the sleeve and set the anchor. The tool can be manipulated using only one hand. The tool typically has a thumb cap which, when rotated, locks and unlocks the drive pin. The tip of the tool is machined to have a concave shape for fitting over the convex-shaped dome of a typical nail-in anchor. The outer surfaces of the tool can have knurls to improve handling.

US Patent:

6769845, Aug 3, 2004

Filed:

Aug 15, 2002

Appl. No.:

10/219408

Inventors:

John Howard Estes - Spring TX

Assignee:

Matrix Tool, Inc. - Spring TX

International Classification:

B23B 5100

US Classification:

4082035, 408 84, 408204, 408226

Abstract:

A tool for removing the dome portion of a nail pin anchor, rivet, or other fastener. The tool, which is powered by a power drill, has a drilling end with a slot to accommodate the nail of the anchor. The balanced drill bit has six cutting points. A collar surrounds the body of the tool, allowing the installer to position it properly. Free-wheeling bearings allow the collar to remain stationary while the drilling end is rotating.

US Patent:

6915936, Jul 12, 2005

Filed:

Sep 5, 2003

Appl. No.:

10/655979

Inventors:

John Howard Estes - Spring TX, US

Assignee:

Matrix Tool, Inc. - Spring TX

International Classification:

B25C007/00

US Classification:

227147, 227139, 227141, 227107, 29275

Abstract:

A tool for driving and setting nail-pin anchors and anchor bolts into concrete, the tool using the percussive action of a rotary hammer drill. The tool comprises a body member with a spring, a driver, and a ram inserted into the body member's bore. After a hole is drilled for insertion of the anchor, the masonry drill bit of the rotary hammer drill is slid inside the bore of the ram and temporarily locked to the tool. The rotary hammer drill is activated, and the drill bit turns inside the ram without affecting the body member or the anchor. Instead, the percussive force of the rotary hammer drill transfers its impact to the ram and the driver, which impacts the nail of the nail-pin anchor, or the stem of the anchor bolt, setting it into the concrete. A keyed bearing can be installed inside a sleeve of the ram in order to protect the tip of the masonry drill bit from shearing.