Electrical arc protection using a trip contact

    公开(公告)号:US10230193B2

    公开(公告)日:2019-03-12

    申请号:US15814023

    申请日:2017-11-15

    摘要: A plug comprises power contacts and a plug trip contact. During a plugging action between the plug and a receptacle, the plug trip contact makes a trip connection with mating contacts in the receptacle. Electrical power to the receptacle allows a current through the trip connection, which causes disconnection of the power to the receptacle. A receptacle comprises receptacle power contacts and receptacle trip contacts. During a plugging action between the receptacle and a plug, trip contacts in the receptacle makes a trip connection with a mating contact in the plug. Electrical power to the receptacle allows a current through the trip connection, which can cause disconnection of the power to the receptacle. The receptacle can be included in an enclosure having a trip breaker with a trip mechanism. An electrical system can have an electrical device with a line cord connected to a plug having the trip contact.

    Electronic attenuation adjusting hearing protection device

    公开(公告)号:US10834491B2

    公开(公告)日:2020-11-10

    申请号:US16145967

    申请日:2018-09-28

    IPC分类号: H04R1/10 A61F11/14 H04R5/033

    摘要: Acoustic attenuating ear muffs include a first ear pod having a first ear cup provide with a first acoustic attenuating member including an outer surface, and a first opening. A second ear pod includes a second ear cup having a second acoustic attenuating member including an outer surface portion, and a second opening. A first selectively deployable plug member is mounted to the outer surface of the first acoustic attenuating member. A second selectively deployable plug member mounted to the outer surface of the second acoustic attenuating member. An acoustic sensor is operable to detect ambient noise. An actuator system is operable to shift the first and second selectively deployable plug members into corresponding ones of the first and second openings based on ambient noise detected by the acoustic sensor.

    Equipment use tracking and availability prediction

    公开(公告)号:US11439870B2

    公开(公告)日:2022-09-13

    申请号:US16212548

    申请日:2018-12-06

    IPC分类号: A63B24/00 G06N5/04

    摘要: Apparatuses, systems and computer-implemented methods are disclosed for equipment use tracking and availability prediction. A monitor module may electronically monitor use of equipment by a plurality of users at one or more locations, by obtaining information about equipment use from sensing equipment that identifies users and times of use for the equipment. A profile module may store a plurality of user profiles based on the information about equipment use. User profiles may include information about the users indicating equipment used and time of use. A prediction module may send a recommendation indicating predicted equipment availability to a user based on current information about equipment use and on the user profiles.

    EQUIPMENT USE TRACKING AND AVAILABILITY PREDICTION

    公开(公告)号:US20200179760A1

    公开(公告)日:2020-06-11

    申请号:US16212548

    申请日:2018-12-06

    IPC分类号: A63B24/00 G06N5/04

    摘要: Apparatuses, systems and computer-implemented methods are disclosed for equipment use tracking and availability prediction. A monitor module may electronically monitor use of equipment by a plurality of users at one or more locations, by obtaining information about equipment use from sensing equipment that identifies users and times of use for the equipment. A profile module may store a plurality of user profiles based on the information about equipment use. User profiles may include information about the users indicating equipment used and time of use. A prediction module may send a recommendation indicating predicted equipment availability to a user based on current information about equipment use and on the user profiles.