Thomas C Mathews

US Patent:

8051615, Nov 8, 2011

Filed:

May 14, 2008

Appl. No.:

12/120503

Inventors:

Thomas F. Mathews - Fort Worth TX, US
Stan Landry - Euless TX, US
Robert K. Van Noord - Dallas TX, US

Assignee:

Actuant Corporation - Butler WI

International Classification:

E04C 5/12
F16C 11/02

US Classification:

5222313, 522236, 522237, 52711, 403 78

Abstract:

A cable anchor has ball surfaces that permit misalignment between the cable and a stem of the anchor, and a fitting that permits the introduction of a corrosion inhibitor to the interior of the anchor.

US Patent:

8276334, Oct 2, 2012

Filed:

Oct 12, 2011

Appl. No.:

13/271946

Inventors:

Thomas F. Mathews - Fort Worth TX, US
Stan Landry - Euless TX, US
Robert K. Van Noord - Dallas TX, US

Assignee:

Actuant Corporation - Menomonee Falls WI

International Classification:

E04C 5/12
F16C 11/02

US Classification:

5222313, 522236, 522237, 52711, 403 78

Abstract:

A cable anchor has ball surfaces that permit misalignment between the cable and a stem of the anchor, and a fitting that permits the introduction of a corrosion inhibitor to the interior of the anchor.

US Patent:

20060179742, Aug 17, 2006

Filed:

Dec 9, 2005

Appl. No.:

11/299004

Inventors:

Thomas Mathews - Fort Worth TX, US
Stan Landry - Euless TX, US

International Classification:

E04C 5/08

US Classification:

052223130

Abstract:

An anchor for a concrete post-tension system. The anchor comprises a bearing plate portion, a barrel portion and a plurality of webs. The barrel portion has an upper annular wall extending from the upper surface of the bearing plate and a lower annular wall depending from the lower surface of the bearing plate. The inner surfaces of the upper annular wall and lower annular wall together define an internal wedge-receiving cavity passing through the bearing plate and having a central axis substantially perpendicular to the bearing plane. The wedge-receiving cavity has a fixed angle of taper with respect to the central axis. The cavity has a diameter at the lower end that is at least as great as the diameter of the sheathing on the tendon to be anchored. The cavity has an overall height that is at least as great as the height of the wedges to be used. The outer surface of the upper annular wall is upwardly tapered. The outer surface of the lower annular wall is downwardly tapered. A plurality of webs extend from the outside of the upper annular wall to the upper surface of the bearing plate. The sheathed portion of the tendon may freely pass through the wedge-receiving cavity of the anchor.

US Patent:

20190242131, Aug 8, 2019

Filed:

Feb 4, 2019

Appl. No.:

16/266497

Inventors:

- SEAGOVILLE TX, US
Shane Taylor - Hurst TX, US
Thomas Mathews - Midlothian TX, US
Tim Beaver - Sugar Land TX, US

International Classification:

E04C 5/12

Abstract:

An anchor assembly for use with a tensioning strand includes an anchor body including a bore therethrough, the bore configured to receive the strand therethrough, an inner surface of the bore including a frustoconical wedge-receiving cavity, at least one frustoconical wedge including a strand-engaging inner surface and an anchor body engaging outer surface, the wedge being at least partially received in the wedge-receiving cavity, an encapsulating layer at least partially surrounding the anchor body, and a wedge retention disk mechanically coupled to the anchor body and positioned so as to prevent the wedge from fully exiting the wedge-receiving cavity. The wedge retention disk may be spaced apart from the anchor body such that the wedge can move axially with respect to the anchor body between a seated position in which the wedge engages the wedge-receiving cavity and an unseated position in which the wedge engages the wedge retention disk.

US Patent:

20190242132, Aug 8, 2019

Filed:

Feb 4, 2019

Appl. No.:

16/266909

Inventors:

- SEAGOVILLE TX, US
Thomas Mathews - Midlothian TX, US
Paul Hohensee - West Bend WI, US

International Classification:

E04C 5/16
E04C 5/12
B23K 20/10

Abstract:

A method for forming a concrete anchor may comprise the steps of providing an anchor body, at least partially encapsulating the anchor body in a sealing cover, providing at least one tubular member, engaging an end surface of the tubular member against a surface of the sealing cover so as to weld the member to the sealing cover.

US Patent:

20150345142, Dec 3, 2015

Filed:

Jul 28, 2015

Appl. No.:

14/810869

Inventors:

Thomas F. Mathews - Fort Worth TX, US
Stanley A. Landry - Euless TX, US
Paul A. Hohensee - Germantown WI, US

Assignee:

ACTUANT CORPORATION - Menomonee Falls WI

International Classification:

E04C 5/12

Abstract:

A wedge for a concrete post-tension reinforcement anchorage system is shaped such that the compressive force on the tendon after tensioning of the anchorage system is substantially evenly distributed over a length of the outer surface of the tendon that is engaged by the internal surface of the wedge. The external surface of the wedge may have a first section with a first taper angle and a second section with a second taper angle, the second taper angle being larger than the first taper angle. The internal surface of the wedge may have a first section with a first taper angle and a second section with a second taper angle, the second taper angle being greater than the first taper angle. An anchor with a bore with two taper angles and tooth profiles of threading patterns on the internal surface of the wedge are also disclosed.

US Patent:

20140245678, Sep 4, 2014

Filed:

May 15, 2014

Appl. No.:

14/278667

Inventors:

Thomas F. Mathews - Fort Worth TX, US
Stanley A. Landry - Euless TX, US
Paul A. Hohensee - Germantown WI, US

Assignee:

Actuant Corporation - Menomonee Falls WI

International Classification:

E04C 5/12

US Classification:

5222313

Abstract:

A wedge for a concrete post-tension reinforcement anchorage system is shaped such that the compressive force on the tendon after tensioning of the anchorage system is substantially evenly distributed over a length of the outer surface of the tendon that is engaged by the internal surface of the wedge. The external surface of the wedge may have a first section with a first taper angle and a second section with a second taper angle, the second taper angle being larger than the first taper angle. The internal surface of the wedge may have a first section with a first taper angle and a second section with a second taper angle, the second taper angle being greater than the first taper angle. An anchor with a bore with two taper angles and tooth profiles of threading patterns on the internal surface of the wedge are also disclosed.

US Patent:

20100186313, Jul 29, 2010

Filed:

Jan 28, 2009

Appl. No.:

12/361011

Inventors:

Frantz D. Stanford - Monona WI, US
Thomas F. Mathews - Ft. Worth TX, US
Winfred E. Mandody - Columbus WI, US
Paul A. Hohensee - Germantown WI, US

International Classification:

E02D 35/00
E04G 21/14

US Classification:

521251, 5274521

Abstract:

The present invention provides a slab lift bracket that includes an collar portion with a center, an upper surface, a lower surface, an outer surface, and an inner surface. The slab lift bracket also includes a plurality of protruding members that are distributed around and fixed to the collar portion. The protruding members extend outwardly and downwardly of the collar portion at spaced apart locations, and have a hook shaped free end.