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    Motion detection switch
    2.
    发明授权
    Motion detection switch 失效
    运动检测开关

    公开(公告)号：US3573405A

    公开(公告)日：1971-04-06

    申请号：US3573405D

    申请日：1969-11-18

    Applicant: GEN MOTORS CORP

    Inventor： SKINNER KENNETH R ,  CLAYTON DAVID P

    IPC: H01H35/40

    CPC classification number: H01H35/40

    Abstract: In a preferred form, a compact motion detecting switch mechanism for detecting movement of an automotive vehicle and which is operable to control operation of an electrical device or devices of the vehicle when the latter is moving and/or stopped is provided. The motion detecting switch mechanism comprises a housing means containing a liquid and which has a pumping chamber having an inlet for ingress of fluid and an outlet for egress of fluid, a rotary pump means disposed within the pumping chamber and which is adapted to be drivingly connected with a moving part of the vehicle for pumping liquid under pressure from the inlet toward the outlet, a switch means carried by the housing and which is adapted to be operatively connected with the electrical device or devices, a recirculating passage in the housing means for recirculating the liquid from the outlet toward the inlet of the pumping chamber, and a combined switch actuator and valve means slidably supported by the housing means for respectively controlling actuation and deactuation of the switch means and for controlling communication between the recirculating passage and the inlet of the pumping chamber. The combined switch actuator and valve means and housing of the switch mechanism are constructed and arranged such that the switch is actuated prior to the establishment of communication between the recirculating passage and the inlet of the pumping chamber.

    Automatic headlamp-aiming system
    4.
    发明授权
    Automatic headlamp-aiming system 失效
    自动头灯瞄准系统

    公开(公告)号：US3596837A

    公开(公告)日：1971-08-03

    申请号：US3596837D

    申请日：1969-09-18

    Applicant: GEN MOTORS CORP

    Inventor： TODD HAROLD E ,  CLAYTON DAVID P

    IPC: B60Q1/10 ,  B60Q1/00

    CPC classification number: B60Q1/10 ,  B60Q2300/116 ,  B60Q2300/132

    Abstract: An automatic headlamp-aiming system for a motor vehicle wherein a headlamp is hingedly connected to the vehicle for controlled rotation about a horizontal axis as driven by a vacuum motor which is energized upon operator initiation of an aiming cycle. Control means including a single-ended mercury switch electrically connected to a solenoid serves to automatically deenergize the vacuum motor and lock the system against further movement when the headlamp attains a properly vertically aimed position.

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