WILLIAM D STEWART
Electrician at Mirror Lk Dr, Fort Worth, TX

2005007, Apr 14, 2005

Oct 14, 2003

10/685035

William Stewart - Benbrook TX, US

G02B006/255, C03B037/16

065406000, 065407000, 065433000

Systems, devices and methods for compiling and fracturing optical fibers are disclosed. In one aspect, a device is disclosed for coupling and for fracturing optical fibers, comprising a housing for receiving a first end of a first optical fiber and a second end of a second optical fiber, a moveable member capable of moving with respect to the housing, a first electrode coupled to the moveable member and having a first electrode surface, a second electrode connected to the housing and having a second electrode surface, the first and second electrodes being positioned so that the first and second ends of the first and second optical fibers, respectively, are located adjacent to each other and between the first and second electrode surfaces of the first and second electrodes, the first and second electrodes are capable of receiving an electrical signal and passing a current through the first and second ends of the first and second optical fibers, the current fusing the first and second ends of the first and second optical fibers together to form a single optical fiber, and a cutting surface positioned such that upon movement of the moveable member, the single fiber is cut to form the first and second optical fibers having the first and second ends, respectively.

2005021, Sep 29, 2005

Mar 25, 2004

10/809208

William Stewart - Benbrook TX, US

G02B027/00

359614000, 359601000

A tube-mounted inclined optical flat for improving the stealth capability of an optical aperture is disclosed. The optical flat has a light-absorbing finish on its rear surface, and is mounted in front of existing instrument optics. The light from the scene being viewed passes through the optical flat and is undistorted. Any light that is reflected from the optical flat is absorbed by the light-absorbing tube. Light that enters the distal end of tube is absorbed in the same manner. Any light entering the instrument optics from the observer's end and internal reflected light emanate from within the optics. Much of this light is absorbed by the rear finish on the optical flat. Selection of the optics' virtual focal points and placement of the optical flat relative to the optics reduce the size requirement of the rear finish on the optical flat.

2003022, Dec 11, 2003

Jun 8, 2002

10/165588

William Stewart - Benbrook TX, US

Lockheed Martin Corporation

H01Q001/28, G01S013/66

343/705000, 342/033000, 342/036000

A millimeter wave beacon includes a millimeter wave transmitter that produces at least one signal and plurality of antennas, coupled to the millimeter wave transmitter, that each emit millimeter wave radiation in response to the at least one signal. In one embodiment, the antennas are constructed and oriented to produce an overlapping signal field in which millimeter wave radiation emitted from multiple of the antennas can be detected. The millimeter wave radiation can be pulsed to encode various information of interest. Determination of the direction of approach to the beacon is facilitated by multiple antennas transmitting signals having different pulse encodings and/or different frequencies.

8544536, Oct 1, 2013

Sep 24, 2010

12/890323

David W. McCulloch - Arlington TX, US
Timothy S. Steffenhagen - Fort Worth TX, US
William B. White - Bedford TX, US
William G. Stewart - Fort Worth TX, US

National Oilwell Varco, L.P. - Houston TX

E21B 19/22

166 773, 166384, 166 772, 226172

A coiled tubing injector comprises a drive system for independently driving a plurality of chains independently but otherwise retarding relative motion between the driven chains when a chain begins to slip uncontrollably.

2014000, Jan 2, 2014

Aug 29, 2013

14/014327

Timothy S. Steffenhagen - Fort Worth TX, US
William B. White - Bedford TX, US
William G. Stewart - Fort Worth TX, US

National Oilwell Varco, L.P. - Houston TX

E21B 19/08

166 651, 166 773

A coiled tubing injector comprises a drive system for independently driving a plurality of chains independently but otherwise retarding relative motion between the driven chains when a chain begins to slip uncontrollably.