William Hoagland
Engineers at Old Post Rd, Boulder, CO
License number
Colorado 16459
Issued Date
Aug 1, 1979
Renew Date
Nov 19, 1985
Expiration Date
Nov 19, 1985
Type
Professional Engineer
Address
Address
7282 Old Post Rd, Boulder, CO 80301
Professional information
Conformable Hydrogen Indicating Wrap To Detect Leaking Hydrogen Gas
US Patent:
2007008, Apr 26, 2007
Filed:
Sep 5, 2006
Appl. No.:
11/470218
Inventors:
William Hoagland - Boulder CO, US
David Benson - Golden CO, US
Rodney Smith - Golden CO, US
David Benson - Golden CO, US
Rodney Smith - Golden CO, US
International Classification:
G01N 27/26
US Classification:
204424000
Abstract:
A hydrogen gas leak detector comprises a thin film hydrogen detector on a sheet of conformable substrate material, for example, a plastic cling wrap material or a plastic heat shrink material, that is wrappable around a component from which hydrogen gas might leak or evolve. The thin film hydrogen detector may comprise a thin film hydrogen detecting material, for example, a metal oxide, and a thin film catalyst material. The conformable substrate material can be transparent or translucent.
Monitorable Hydrogen Sensor System
US Patent:
8636883, Jan 28, 2014
Filed:
Mar 12, 2007
Appl. No.:
11/685179
Inventors:
William Hoagland - Boulder CO, US
David K. Benson - Golden CO, US
David K. Benson - Golden CO, US
Assignee:
Element One, Inc. - Boulder CO
International Classification:
G01N 27/26
US Classification:
204400, 204402, 204406, 204407, 422 8202
Abstract:
A remotely readable hydrogen detector is in the form of a tag or card that can be worn on clothing or mounted on a variety of surfaces and can be monitored from a distance for the presence of hydrogen gas. It includes a hydrogen sensor device, which changes in electrical resistivity in response to being exposed to hydrogen gas, that is incorporated into an electric detector circuit, which detects changes in resistivity of the sensor device, and, when such change in resistivity indicates the presence of some predetermined concentration of hydrogen gas, the electric circuit outputs a signal or state that indicates the presence of hydrogen to a transceiver circuit, which can transmit that information to a remote receiver or interrogator/reader via an antenna in the sensor device.
Hydrogen Sulfide Indicating Pigments
US Patent:
8574917, Nov 5, 2013
Filed:
Nov 26, 2008
Appl. No.:
12/324597
Inventors:
William Hoagland - Boulder CO, US
David K. Benson - Golden CO, US
Rodney D. Smith - Golden CO, US
David K. Benson - Golden CO, US
Rodney D. Smith - Golden CO, US
Assignee:
Element One, Inc. - Boulder CO
International Classification:
G01N 33/00
US Classification:
436102, 436119, 436164, 422 8205, 422 85
Abstract:
Disclosed is a pigment that changes color upon exposure to hydrogen sulfide gas. The pigment may be ground or otherwise reduced to small particles and used in coatings, dyes, paints or inks. Potential applications for paints and inks include the production of warning indicators for the presence of hydrogen gas in areas where such presence may pose a hazard. Warning decals may be printed with pigmented ink and posted in areas of potential hydrogen hazard. In the presence of hydrogen sulfide gas, the decals can display a warning by causing a change in the color of a printed message. Objects may also be coated with pigmented paints so that if a hydrogen sulfide leak occurs from within or nearby the object, the color of the object changes to provide a warning of the presence of leaked hydrogen sulfide. Example applications of such painted objects include any industrial process containing hydrogen sulfide.
Visual Hydrogen Sensors Using Nanoparticles
US Patent:
2007025, Nov 1, 2007
Filed:
Oct 26, 2006
Appl. No.:
11/553400
Inventors:
William Hoagland - Boulder CO, US
David Benson - Golden CO, US
Rodney Smith - Golden CO, US
David Benson - Golden CO, US
Rodney Smith - Golden CO, US
International Classification:
G01N 27/26
US Classification:
204424000, 427124000
Abstract:
Disclosed are chemochromic nanoparticles that can be used as pigments in paints, dyes, coatings, and inks. Because of the small size of the nanoparticles, there is an increased surface area of the chemochromic material that increases the speed of the response of the chemochromic material. The nanoparticles can also be employed in thin film detectors.
Hydrogen Gas Indicator System
US Patent:
6895805, May 24, 2005
Filed:
Dec 5, 2001
Appl. No.:
10/450007
Inventors:
William Hoagland - Boulder CO, US
International Classification:
G01N007/00
US Classification:
73 3106, 73 3105, 422 56, 422 58
Abstract:
A hydrogen gas indicator system that provides various substrate materials () that support hydrogen gas sensor () materials with discrete indicia () that provide information separate from any change in the physical properties of the hydrogen gas sensor itself.