David M Clem

US Patent:

6848584, Feb 1, 2005

Filed:

Sep 26, 2002

Appl. No.:

10/255504

Inventors:

Darrell J. Weigelt - Seabrook TX, US
David W. Clem - Spring TX, US

Assignee:

Drilltec Patents & Technologies Co., Inc. - Houston TX

International Classification:

B01D 2900
B01D 3528

US Classification:

210470, 210232, 210237, 210238, 210448

Abstract:

A strainer basket is used in conduits or fluid systems and includes a non-metallic strainer basket in which a bio-cide is disposed to combat algae and fungal buildup along the surface of the basket and/or in the openings of the basket.

US Patent:

7419198, Sep 2, 2008

Filed:

Apr 26, 2002

Appl. No.:

10/133008

Inventors:

Bryan C. Baker - Houston TX, US
David W. Clem - Houston TX, US

Assignee:

Drilltec Patents & Technologie Company, Inc. - Houston TX

International Classification:

B66C 1/18

US Classification:

294 74, 294 8213

Abstract:

Methods and apparatus for providing a durable, lightweight lifting member and assembly for use in handling elongated members. One embodiment comprises a cage or net made of a flexible material, the cage or net being adapted to receive one end of an elongated member. Another embodiment is characterized by a flexible lifting member constructed of a pliable, non-metallic material and comprising a body portion, an end portion, and a lifting strap.

US Patent:

8424570, Apr 23, 2013

Filed:

May 3, 2011

Appl. No.:

13/099508

Inventors:

Bryan C. Baker - Houston TX, US
David W. Clem - Spring TX, US
Jeffrey D. Lendermon - Missouri City TX, US

Assignee:

Drilltec Patents & Technologies Corporation - Houston TX

International Classification:

B65D 59/06

US Classification:

138 96T, 138 96 R, 138 89, 220213

Abstract:

A protector for protecting a pipe thread having a thread pitch Phas a central axis, a first end, second end opposite the first end, and comprises a base at the first end. In addition, the protector comprises an annular connecting member extending axially from the base to the second end. The connecting member has a radially inner surface and a radially outer surface. The connecting member also includes a helical thread extending radially outward from the radially inner surface or radially inward from the radially outer surface. The helical thread has a thread pitch Pthat is greater than the thread pitch Pof the pipe thread.

US Patent:

8622091, Jan 7, 2014

Filed:

Aug 14, 2008

Appl. No.:

12/222694

Inventors:

Yasuhiro Yamamoto - Wakayama, JP
Shigeo Nagasaku - Hyogo, JP
David W. Clem - Spring TX, US

Assignee:

Nippon Steel & Sumitomo Metal Corporation - Tokyo
Drilltec Patents & Technologies Company, Inc. - Houston TX

International Classification:

B65D 59/00
B65D 59/06
F16L 9/14
F16L 11/12

US Classification:

138 96T, 138 89, 138145, 285 45

Abstract:

A protector which prevents damage to a solid lubricating coating on a threaded portion of a threaded joint when the protector is mounted on a pin or a box of a threaded joint for pipes in which at least one of the pin or the box is lubricated with a solid lubricating coating comprises a tubular member having a threaded portion on its inner or outer peripheral surface which threadingly engages with at least a portion and preferably 3-5 complete threads of the threaded portion provided on the pin or the box to be protected. The thread height H of the threaded portion of the protector and the thread height H of the complete thread of the pin or the box on which the protector is mounted satisfy HH, and the difference between H and H [=HH is larger than the maximum coating thickness at the thread crest of the solid lubricating coating which covers the threaded portion of the pin or the box.

US Patent:

20050103704, May 19, 2005

Filed:

Dec 20, 2004

Appl. No.:

11/017271

Inventors:

Darrell Weigelt - Seabrook TX, US
David Clem - Spring TX, US
Bryan Baker - Houston TX, US

Assignee:

DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC. - Houston TX

International Classification:

B01D029/31

US Classification:

210452000, 210443000, 210501000, 210483000

Abstract:

A strainer basket is used in conduits or fluid systems and includes a non-metallic strainer basket in which a bio-cide is disposed to combat algae and fungal buildup along the surface of the basket and/or in the openings of the basket.

US Patent:

20080290675, Nov 27, 2008

Filed:

Aug 7, 2008

Appl. No.:

12/187559

Inventors:

Bryan C. Baker - Houston TX, US
David W. Clem - Houston TX, US

Assignee:

DRILLTEC PATENTS & TECHNOLOGIES CORPORATION - Houston TX

International Classification:

B66C 1/18

US Classification:

294 74

Abstract:

Methods and apparatus for providing a durable, lightweight lifting member and assembly for use in handling elongated members. One embodiment comprises a cage or net made of a flexible material, the cage or net being adapted to receive one end of an elongated member. Another embodiment is characterized by a flexible lifting member constructed of a pliable, non-metallic material and comprising a body portion, an end portion, and a lifting strap.

US Patent:

20130213516, Aug 22, 2013

Filed:

Aug 17, 2012

Appl. No.:

13/588394

Inventors:

David W. Clem - Spring TX, US
Jeffrey D. Lendermon - Missouri City TX, US
Bryan C. Baker - Houston TX, US

Assignee:

DRILLTEC PATENTS AND TECHNOLOGIES CORPORATION - Houston TX

International Classification:

F16L 57/00

US Classification:

138 96 T

Abstract:

A protector for protecting a helical thread of a pipe comprises a body. The body has a central axis, an upper end comprising a base, a lower end opposite the upper end, and an annular connecting member extending axially from the base to the lower end. The connecting member comprising a radially inner surface and a radially outer surface. The connecting member comprises a helical thread extending radially inward from the radially inner surface or radially outward from the radially outer surface. The helical thread comprises a convex profile that is different than a thread profile of the thread of the pipe.

US Patent:

6676422, Jan 13, 2004

Filed:

Oct 1, 2002

Appl. No.:

10/262244

Inventors:

Bryan C. Baker - Houston TX
David W. Clem - Spring TX
Darrell J. Weigelt - Seabrook TX

Assignee:

Drilltec Patents Technologies Co., Inc. - Houston TX

International Classification:

H01R 1344

US Classification:

439135, 439521

Abstract:

The specification discloses a cap for sealing the terminal end of a power cord, such as a marine power cord, against dirt and moisture. The specification also discloses that the cap actively prevents corrosion of the electrical contacts covered by the cap by the inclusion of corrosion-inhibiting compounds dispersed within the plastic of the cap. The corrosion-inhibiting compound are released in gaseous form within the cap, thereby inhibiting corrosion of the electrical contacts.