ELECTROMAGNETIC INTERFERENCE SHIELDING OF GAS DETECTOR

    公开(公告)号:US20230363127A1

    公开(公告)日:2023-11-09

    申请号:US18311311

    申请日:2023-05-03

    CPC classification number: H05K9/0088 H05K9/0092 G01N33/0027

    Abstract: Disclosed is an electromagnetic interference (EMI) cover for a gas detector including one or more electrical components. The EMI cover includes one or more cover layers, each cover layer including a plastic material layer and one or more layers of conductive or dielectric ink applied to the plastic material layer defining one or more conductive pathways. The one or more conductive pathways are positioned in a pattern to provide electromagnetic interference (EMI) shielding to the one or more electrical component.

    SYSTEM AND METHOD FOR CALIBRATING INDOOR AIR QUALITY SENSORSOF A MULTI-ZONE ENVIRONMENT

    公开(公告)号:US20240418390A1

    公开(公告)日:2024-12-19

    申请号:US18738020

    申请日:2024-06-09

    Abstract: A method for calibrating indoor air quality (IAQ) sensors associated with an area of interest (AOI) is disclosed. The method comprises the steps of creating a predetermined calibration environment for one or more IAQ sensors associated with the AOI by enabling a building management system (BMS) associated with the AOI to perform one or more of adjusting inflow of outside air into the AOI to a first predetermined maximum level, adjusting ventilation rate of the AOI to a second predetermined maximum level, and increasing a degree of air filtration in the AOI to a third predetermined maximum level; monitoring IAQ values detected by the one or more IAQ sensors at the AOI in the predetermined calibration environment, and calibrating the one or more IAQ sensors based on an average value of the monitored IAQ values being detected by each of the IAQ sensors.

    SYSTEM AND METHOD FOR EVALUATING LIFE SAFETY DETECTION DEVICES

    公开(公告)号:US20240395124A1

    公开(公告)日:2024-11-28

    申请号:US18666058

    申请日:2024-05-16

    Abstract: Embodiments of the disclosure describe systems and methods for evaluating an operational aspect of a life safety detection device. The method comprises transmitting light from at least one light source into a detection chamber positioned within an interior of a housing of the device. Further, the method comprises receiving, over a predefined time period, scattered light within the detection chamber, wherein the scattered light is indicative of a presence of airborne particulate matter. Furthermore, the method comprises determining, by a processor coupled to the device, a variation pattern of the airborne particulate matter during the predefined time period to analyze, by the processor, the variation pattern of the airborne particulate matter over the predefined time period with respect to another variation pattern during the predefined time duration to evaluate operational aspects of the device.

    MASKING TO ELIMINATE DIRECT LINE OF SIGHT BETWEEN LIGHT EMITTER AND LIGHT RECEIVER IN A SMOKE DETECTOR

    公开(公告)号:US20240068942A1

    公开(公告)日:2024-02-29

    申请号:US18240859

    申请日:2023-08-31

    CPC classification number: G01N21/53 G01N2201/066

    Abstract: A cap for a light emitter and/or light receiver of a smoke detector for eliminating a direct line of sight between the light emitter and the light receiver is disclosed. The cap comprises an enclosure of a predefined profile having a predetermined open area at a predetermined position on the enclosure, which is adapted to be removably fitted over one or more of the light emitter and/or the light receiver. The cap upon fitting over any of the light emitter and the light receiver, the cap blocks a direct line of sight between the light emitter and the light receiver and allows the light receiver to receive only the light being reflected by smoke and a predefined amount of clean air signal present within the smoke detector.

    PORTABLE FIRE EXTINGUISHER OPERATED WITH A BUTTON ON THE EXTERNAL SURFACE

    公开(公告)号:US20230084990A1

    公开(公告)日:2023-03-16

    申请号:US17942724

    申请日:2022-09-12

    Abstract: A fire extinguisher includes a cylinder for storing a fire extinguishing agent; a valve assembly disposed on the cylinder, the valve assembly comprising a closed position and an open position, the valve assembly configured to deliver the fire extinguishing agent from within the cylinder when in the open position; and an actuation assembly operably connected to the valve assembly, the actuation assembly comprising a button and a control device, the control device configured to actuate the valve assembly from the closed position to the open position when the button is contacted.

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