49 patents
Utility
Sensor interrogation
2 Jan 24
A method of operating a sensor system including at least one sensor for detecting an analyte gas and a control system includes electronically interrogating the sensor to determine the operational status thereof and upon determining that the operational status is non-conforming based upon one or more predetermined thresholds, the control system initiating an automated calibration of the sensor with the analyte gas or a simulant gas.
Towner Bennett Scheffler, Michael Alvin Brown, Andrew E. Nalepa, Brian Keith Davis
Filed: 19 Dec 19
Utility
Data communication and displays for breathing apparatus facepieces and pressure regulators
19 Dec 23
A system includes a pressure regulator including a housing, an inlet for connection to a pressurized gas comprising oxygen, and at least one energy transfer element.
Carsten Leuschner, Klaus Schmidtke, Marco Tekelenburg, Michael Horn, Detlef Kielow, Thomas Kuba
Filed: 23 Dec 19
Utility
Gas sensor with separate contaminant detection element
19 Dec 23
A system for detecting an analyte gas in an environment includes a first gas sensor, a first contaminant sensor separate and spaced from the first gas sensor, and electronic circuitry in electrical connection with the first gas sensor to determine if the analyte gas is present based on a response of the first gas sensor.
Meghan E. Swanson, Daniel D. Santoro, Jr., Michael Alvin Brown, Mark Flori Zanella, Sr., Christopher S. Detka
Filed: 2 Jan 23
Utility
Cartridge and breathing apparatus containing the same
14 Nov 23
A chemical cartridge or an oxygen generating breathing apparatus includes an outer canister and an inner canister with an interior space.
Harry Murso, Juergen Unger
Filed: 12 Sep 17
Utility
Hearing protection device
3 Oct 23
A hearing protection device has a base (11) configured for connecting to a lateral portion of a protective helmet (1), an ear cup (20) configured for covering an ear of a user, and a support (30) connecting the ear cup (20) to the base (11).
Clément Ginguenaud, Amaury Sicre, Alois Chabanne, Nicolas Prely
Filed: 18 Jun 19
Utility
Dynamic comparative diagnostics for catalytic structures and combustible gas sensors including catalytic structures
19 Sep 23
A combustible gas sensor for detecting an analyte gas includes a first element including a first electric heating element, a first support structure on the first electric heating element and a first catalyst supported on the first support structure and electronic circuitry in electrical connection with the first element.
Mark Flori Zanella, Sr., Michael Alvin Brown, Meghan E. Swanson, Daniel D. Santoro, Jr., Jeff Audia, Ryan Alan Sherry
Filed: 1 Mar 21
Utility
Fall protection compliance system and method
5 Sep 23
A connector for a fall protection compliance system includes a frame having an opening and a connection area configured for receiving a connection structure therein and a connection sensor assembly associated with the frame.
Benjamin T. Sepe, Jeffrey F. Harding, Mitcham C. Tuell, Robert Craig Campbell, Christopher M. Stygar, Peter I. Rutkowski
Filed: 14 Jan 20
Utility
Operation of combustible gas sensor in a dynamic mode with a constant resistance setpoint
18 Jul 23
A method of operating a sensing element including a heating element in operative connection with electronic circuitry, wherein the sensing element forms a resistive element in a circuit of the electronic circuitry, includes, in at least a first phase, activating the electronic circuitry to heat the sensing element to a temperature at which the sensing element is responsive to an analyte gas via energy input to the heating element in a pulsed manner.
Daniel D. Santoro, Jr., Meghan E. Swanson, Michael Alvin Brown
Filed: 11 Dec 19
Utility
Articulated harness connection arrangement with integrated attachment element
30 May 23
A connection arrangement for use with a wearable body harness includes a first connector having a first body component, a second body component, and an attachment element connected to each other by a rod having a longitudinal axis.
Michael D. Monahan, Mark Hall, Eduardo José Ferreira Dodge
Filed: 25 Jun 20
Utility
Self-contained breathing apparatus with thermal imaging capabilities
23 May 23
An improved safety device for a self-contained breathing apparatus, and an improved self-contained breathing apparatus having thermal imaging capabilities.
Kaustubh Misra, Michael F. Becker, Henry A. Fonzi, III, David E. Garrett
Filed: 17 Aug 20
Utility
Case or cradle for a fall arrest device
2 May 23
A case or support cradle (10) for a fall arrest device has a shape or configuration enabling rolling of the case or cradle (10) along an arcuate path.
Owain Jones, Karl Jones, Jacob Thackeray Squire
Filed: 31 Jul 18
Utility
Cut-resistant leading edge fall arrest system and method
25 Apr 23
A fall arrest system includes a line retraction device having a safety line, an energy absorber configured for connecting to a terminal end of the safety line, and a harness configured for connecting to the energy absorber such that the energy absorber is disposed between the terminal end of the safety line and the harness.
Jeffrey F. Harding, Mitchell H. Hetrich, Gregory M. Grupp
Filed: 4 Apr 19
Utility
Gas sensor with separate contaminant detection element
3 Jan 23
A system for detecting an analyte gas in an environment includes a first gas sensor, a first contaminant sensor separate and spaced from the first gas sensor, and electronic circuitry in electrical connection with the first gas sensor to determine if the analyte gas is present based on a response of the first gas sensor.
Meghan E. Swanson, Daniel D. Santoro, Jr., Michael Alvin Brown, Mark Flori Zanella, Sr., Christopher S. Detka
Filed: 11 Jun 19
Utility
Pressure regulator assembly and bypass assembly for a self-contained breathing apparatus
15 Nov 22
A pressure regulator assembly for an SCBA includes a valve assembly having a piston, a cylinder for receiving the piston, a sealing member for engagement by the piston, a conduit extending through the piston and facilitating fluid communication between an inlet chamber and a cavity of the cylinder, and a driving assembly for facilitating the engagement and disengagement of the piston responsive to a change of pressure in the outlet chamber.
Longteng Yu, Lida Zhu, Carsten Christian Leuschner, Wolfgang Heinz Adolf Kirchner
Filed: 17 Mar 22
Utility
Harness back plate and strap arrangement
15 Nov 22
A wearable body harness has first and second shoulder straps arranged in an X-shape, a back plate on a rear portion of the shoulder straps with the first shoulder strap crossing over the second at the back plate.
Michael D. Monahan, Mark Allen Hall
Filed: 11 Oct 19
Utility
Energy harvesting from current loops
25 Oct 22
A system includes a two-conductor loop in which the loop current or current signal is controlled by a loop current controller to be proportional to a signal output from a sensor.
Robert Kevin Sexton, Mark Flori Zanella, Sr.
Filed: 15 Dec 20
Utility
Detection of blockage in a porous member
16 Aug 22
A method of detecting at least a blockage status in a porous member separating a measurement chamber of a device including a gas sensor positioned within the measurement chamber which is responsive to an analyte in an ambient environment to be sampled, includes emitting pressure waves from a pressure wave source which travel within the measurement chamber, measuring a first response via a first sensor responsive to pressure waves positioned at a first position within the measurement chamber, measuring a second response via a second sensor at a second position, different from the first position, and in fluid connection with the pressure wave source, determining the blockage status of the porous member based upon a functional relation of the first response and the second response.
Robert Kevin Sexton, Nicholas Emidio Ciccone, Jerin Miller
Filed: 14 May 20
Utility
Electrochemical method to determine the sensitivity of a gas sensor by pulse sequences
9 Aug 22
An electrochemical method for determining the sensitivity of at least one gas sensor.
Sebastian Ross
Filed: 11 Jul 17
Utility
Safety device for providing output to an individual associated with a hazardous environment
31 May 22
Provided are computer-implemented methods that include receiving one or more messages from a device in a transmit state, including: a first message received at a first power level, the first message including data associated with a power level at which the first message was transmitted by the device in the transmit state, and a second message received at a second power level, the second message including data associated with a power level at which the second message was transmitted by the device in the transmit state; and determining a heading toward the device in the transmit state based on the first message and the second message.
Clinton Sean Fleming, Jason Paul Eaton, Alec Cantor
Filed: 13 Mar 20
Utility
Sensor for compositions which deposit upon a surface from a gaseous matrix
8 Mar 22
A sensor system for detecting mass deposition from a gaseous environment includes a first sensor element including a first electrically conductive heating component and a first interface structure on the first electrically conductive heating component.
Meghan E. Swanson, Daniel D. Santoro, Jr., Michael Alvin Brown, Mark Fiori Zanella, Sr.
Filed: 11 Jun 19