Lloyd Neal Salsman

US Patent:

7244926, Jul 17, 2007

Filed:

Feb 28, 2005

Appl. No.:

11/068587

Inventors:

Shiou-jyh Ja - Stillwater OK, US
Lloyd Salsman - Stillwater OK, US
Brian Strecker - Stillwater OK, US
Robert Shelton - Stillwater OK, US
Frederick G. Johnson - Lanham MD, US

Assignee:

Nomadics, Inc. - Stillwater OK

International Classification:

G01J 1/04
G01L 9/00

US Classification:

25022714, 73705

Abstract:

An optically-powered integrated microstructure pressure sensing system for sensing pressure within a cavity. the pressure sensing system comprises a pressure sensor having an optical resonant structure subject to the pressure within the cavity and having physical properties changing due to changing pressures within the cavity. A substrate supports the optical resonant structure. An input optical pathway evanescently couples light into the optical resonant structure. An output optical pathway collects light from the optical resonance structure. A light source delivers a known light input into the input optical pathway whereby the known light input is evanescently coupled into the optical resonant structure by the input optical pathway and a portion of such light is collected from the optical resonant structure by the output optical pathway. A light detector receives the portion of the light collected from the optical resonant structure, and generates a light signal indicative of such portion of the light collected from the optical resonant structure. A temperature compensation sensor generates a temperature signal indicative of the temperature near the optical resonant structure.

US Patent:

7435944, Oct 14, 2008

Filed:

Mar 5, 2007

Appl. No.:

11/713858

Inventors:

Shiou-jyh Ja - Stillwater OK, US
Lloyd Salsman - Stillwater OK, US
Brian Strecker - Stillwater OK, US
Robert Shelton - Stillwater OK, US
Frederick G. Johnson - Lanham MD, US

Assignee:

Nomadics, Inc. - Stillwater OK

International Classification:

G01J 1/04
G01L 9/00

US Classification:

25022714, 73705

Abstract:

An optically-powered integrated microstructure pressure sensing system for sensing pressure within a cavity. The pressure sensing system comprises a pressure sensor having an optical resonant structure subject to the pressure within the cavity and having physical properties changing due to changing pressures within the cavity. A substrate supports the optical resonant structure. An input optical pathway evanescently couples light into the optical resonant structure. An output optical pathway collects light from the optical resonance structure. A light source delivers a known light input into the input optical pathway whereby the known light input is evanescently coupled into the optical resonant structure by the input optical pathway and a portion of such light is collected from the optical resonant structure by the output optical pathway. A light detector receives the portion of the light collected from the optical resonant structure, and generates a light signal indicative of such portion of the light collected from the optical resonant structure. A temperature compensation sensor generates a temperature signal indicative of the temperature near the optical resonant structure.

US Patent:

8378667, Feb 19, 2013

Filed:

May 22, 2009

Appl. No.:

12/470654

Inventors:

Stephen J. Miska - Tulsa OK, US
William J. Rankin - Sapulpa OK, US
Matthew W. Logan - Broken Arrow OK, US
Mark G. Register - Broken Arrow OK, US
Eric N. Freeman - Kiefer OK, US
Philip M. Maltby - Tulsa OK, US
Lloyd N. Salsman - Stillwater OK, US

Assignee:

TDW Delaware Inc. - Wilmington DE

International Classification:

G01B 7/14
G01N 27/72

US Classification:

32420726, 324220, 324221, 32420724, 32420722

Abstract:

A pipeline pig signal made according to this invention houses one or more shielded magnetometer sensors and a microcontroller with adaptive thresholding detection means for reducing the likelihood of false alarms. The adaptive thresholding detection means removes outlier data from the magnetic flux data stream and then passes the outlier-free data stream through four low pass filters. A smoothed magnitude of the data stream is compared to detection limits and, if a passage event has occurred, a recent detection is indicated, a counter of a display unit is incremented, a time of passage is recorded, and both statistics are displayed on the display unit. Because a single object may produce multiple magnetic fields, the detector may be locked-out for a predetermined period of time after the passage event to prevent a second detection of the same object as it passes the detection device.

US Patent:

20050271808, Dec 8, 2005

Filed:

Mar 24, 2005

Appl. No.:

11/088493

Inventors:

Dennis Reust - Stillwater OK, US
Arif Mamedov - Stillwater OK, US
Philip Vickery - Stillwater OK, US
Lloyd Salsman - Stillwater OK, US

International Classification:

B05C003/00
B05D007/22
B05D001/18

US Classification:

427230000, 427402000, 427430100, 118400000, 118408000

Abstract:

An apparatus for forming a composite material having a plurality of layers disposed on at least a portion of at least one substrate includes at least one deposition cell, at least two reservoirs and a deposition system. The at least one deposition cell has at least one substrate. Each of the at least two reservoirs are adapted to contain a deposition material for forming the plurality of layers of the composite material. The deposition system is in fluid communication with the reservoirs for selectively removing the deposition materials from the reservoirs and traversing the deposition materials near the at least one substrate such that separate layers of the deposition materials are disposed on at least a portion of the at least one substrate to form the composite material.

US Patent:

50650980, Nov 12, 1991

Filed:

Jun 18, 1990

Appl. No.:

7/539847

Inventors:

Lloyd N. Salsman - El Reno OK
Leslie D. Hoy - Knoxville TN

Assignee:

The Charles Machine Works, Inc. - Perry OK

International Classification:

G01V 3165

US Classification:

324326

Abstract:

A locating system has its performance enhanced by the use of digital filtering. The locating system may include a transmitter for transmitting an electromagnetic signal from a concealed object. The locating system may also use electromagnetic signals from existing electromagnetic sources unrelated to the locator system. A receiver is provided for receiving a selected electromagnetic signal. The signal is subsequently converted from an analog signal into a digital signal and subjected to digital filtering. The resulting digital signal is then processed to provide location information about the concealed object.