Carrier Corporation

United Technologies Corporation

Kidde Technologies Incorporated

Raytheon Technologies Corporation

Otis Elevator Company

Kidde Fire Protection Limited

Rtx Corporation

Michael J Birnkrant

Peter R Harris

David L Lincoln

Jennifer M Alexander

Marcin Piech

Jie Xi

Michael T Gorski

Alan Matthew Finn

Weina Li

Wayde R Schmidt

Jun Hou

Yanzhi Chen

Ziyou Xiong

Hui Fang

Antonio M Vincitore

Stefan Coreth

Zhen Jia

James Thompson Beals

Danqing Sha

Paul Sheedy

Carey J Clum

Coy Bruce Wood

Jonathan Gilson

Joel H Wagner

Richard G Lord

Catherine Thibaud

Kenneth Bell

Jose-Rodrigo Castillo-Garza

JunYang Lin

TianYuan Chen

Hector Ortiz Valencia

Slade R Culp

May L Corn

Timothy C Wagner

Arthur Blanc

Jose L Santana

Xuemei Wang

Joseph Anthony Vidulich

Devis Dishnica

Zhengang Zhu

Kyle Aaron

Rick Wolf

Guichun Zhou

Guangyu Shen

Michael J Giering

Craig R Walker

Rhonda R Willigan

John J Andres

Kishore K Reddy

Anis Zribi

Hongsheng Liu

Hui Zhai

YuHui Kuang

Robert A Barth

Peter Johannes McKinney

Vivek Venugopalan

Shuguang Zhang

Abhay Nadgir

Ricard Burriel

Jose Manuel Munuera

Terence Vanecek

Sarath Chandra

Sarath Chandra Srikakulapu

Anup Kumar

Hari Keerthana Akumalla

Changmin Cao

Daniel Love

Barry Stahl

Joan Fuster

Simon Walls

Jr Dominic J Mongillo

A detection assembly operable to detect a refrigerant leak event includes a sensor network and a controller. The sensor network is operable to generate sensor outputs including triggering-sensor (TS) outputs and triggering-sensor context (TSC) outputs. The controller is operable to perform a sensor-reading context analysis on the sensor outputs. The sensor-reading context analysis includes accessing a set of the sensor outputs that occurred within a context time window, along with determining that a pattern of the set of sensor outputs represents the refrigerant leak event.

Refrigerant leak detection using a sensor-reading context analysis

A refrigerant detection assembly operable to detect refrigerant mixed with air includes a housing having an internal cavity fluidly connected with an ambient atmosphere surrounding the housing via at least one opening and a sensor subassembly mounted within the internal cavity. The sensor subassembly includes a sensor, a printed circuit board, a heat preservation housing mechanically and thermally coupled to the printed circuit board, and at least one shielding component mechanically coupled to the printed circuit board.

Environmental enclosure for a transport gas sensor

An optical monitoring device includes a housing including a plurality of walls and an interior space disposed therebetween, an opening disposed in a wall of the plurality of walls, and a movable panel, the opening forms a window through the wall, and the movable panel is configured to be moved to access the interior space; a lamp assembly disposed within the interior space and positioned to project light at the window; a camera including an image receiving lens, the camera positioned within the interior space with the image receiving lens is in optical communication with the window; a memory storage device for storing image data; and a controller in electrical communication with the camera and the memory storage device, wherein the controller is configured to compare instant image data from the camera to image data stored on the memory storage device.

Optical monitoring device for use in heating, ventilation, air conditioning and refrigeration system for moisture level

A method for monitoring and controlling an environment of an internal space including: providing conditioned air to the internal space using a heating, ventilation, and air conditioning (HVAC) system; detecting one or more environmental parameters within the internal space using at least one sensor; receiving a report request from an individual through a computer application of a computing device, the report request includes a focus area selection that selects one or more focus areas, wherein the one or more focus areas include at least one of an indoor air quality, a thermal comfort, or an airborne transmission; generating a performance report for the focus area based on at least the environmental parameters and specifications of the HVAC system, the performance report evaluating at least a performance of the HVAC system; and displaying the performance report on the computing device.

Method for increasing equipment effectiveness for healthy buildings

A detector assembly for a duct of a heating ventilation and air conditioning system includes an outer housing having at least one through hole formed therein, an inner sampling support receivable within a hollow interior of the outer housing, and at least one detector mounted to the inner sampling support. The at least one detector is axially aligned with the at least one through hole when the inner sampling support is installed within the hollow interior of the outer housing. The at least one detector is operable to sample air within the duct to detect a hazardous condition.

Chamberless wide area duct smoke detector

A photoacoustic detection system includes a detector that has a chamber, a pulsed light source, piezoelectric tuning forks, and a photosensor. The chamber has an inlet and an outlet for flow of an analyte. The pulsed light source is adjacent the chamber and is operable to emit a light beam along a path through the chamber. The tuning forks are arranged along the path, and each of the tuning forks is operable to emit first sensor signals. The photosensor is arranged along the path and is operable to emit second sensor signals. A controller is connected to receive the first and second sensor signals. The controller is configured to determine whether a target species is present in the analyte based on the first sensor signals and determine whether the target species is present in the analyte based on the second sensor signals.

Photoacoustic detection system with differential amplifier for determing target species presence and triggering fault

A method of indicating the presence of a target gas in a gas volume comprising providing a gas sensing core, configured for detection of the target gas, and a condition sensor within the gas volume, providing a controller, allowing gas to fluidly interact with the gas sensing core, monitoring a target gas measurement output from the gas sensing core, monitoring a parameter output from the condition sensor, recording a parameter output minimum value, calculating a parameter difference, calculating a rate of change of the parameter with respect to time, and indicating the presence of a target gas is detected in the gas volume when the target gas measurement exceeds a target gas measurement threshold value and the parameter difference is less than a parameter difference threshold value.

Methods of reducing the occurance of false positives in gas detectors

An integrated fire suppression system includes a plurality of fire detection systems. Each of the fire detection systems is individually addressable. A control system is communicatively coupled to each of the fire detection systems. A plurality of building systems is communicatively connected to the control system. The plurality of building systems includes at least one of a fire suppression system, an alarm system, a heating ventilation and cooling (HVAC) system, a building power supply system, and a building security system. The control system is configured to provide a localized response to a fire detection by at least one fire detection system in the plurality of fire detection systems, the localized response being a response in at least one of the plurality of building systems.

System and method for fire suppression by coupling fire detection with building systems

A refrigerant detection assembly operable to detect refrigerant mixed with air includes a housing having an internal cavity fluidly connected with an ambient atmosphere surrounding the housing via an opening. A subassembly mounted within the internal cavity includes an air chamber fluidly connected with the internal cavity, a non-dispersive infrared sensor operably coupled to the air chamber, a printed circuit board, and a heat conduction plate mechanically and thermally coupled to the printed circuit board. At least one insulator is arranged within the internal cavity at a position between a portion of the subassembly and the housing. A shell is connectable to the housing in overlapping arrangement with the opening. The shell has at least one shell opening formed therein such that a flow path extends from the shell opening, through the opening formed in the housing to the internal cavity, and into the air chamber.

An air purification includes a body portion, having a first installation space, a second installation space and a third installation space; a positive/negative ion module, removably mounted in the first installation space and controlled to generate positive ions and/or negative ions; a plasma module, removably mounted in the second installation space and controlled to generate plasmas; and a power supply module, removably mounted in the third installation space and configured to supply power for the positive/negative ion module and the plasma module.

Air purification device

A detection system for measuring one or more conditions within a predetermined area includes at least one fiber optic cable for transmitting light to and receiving scattered light from one or more nodes and a cover plate having an internal cavity. The cover plate surrounds the one or more nodes such that the one or more nodes are in communication with the internal cavity. A control system is operably coupled to the at least one fiber optic cable so that the scattered light received by the one or more nodes is transmitted to the control system. The control system analyzes the scattered light to evaluate a condition at the one or more nodes.

Chambered high sensitivity fiber optic smoke detection

Air quality monitor

Refrigerant detection sensor housing

Growing community of inventors

Wethersfield, CT, United States of America

Michael J Birnkrant