Multi-function car door closure warning system
First Claim
1. A car door closure warning system comprising a main module mounted on the exterior of a car door adjacent to an edge thereof, and an auxiliary module mounted on a car body adjacent with said main module, wherein:
- a first soft magnetic pole piece is disposed within said main module, protruding from a side thereof;
a second soft magnetic pole piece is disposed within said auxiliary module, protruding from a side thereof, with said second soft magnetic pole piece being adjacent to and aligned with said first magnetic pole piece, when said car door is in a properly closed position;
a permanent magnet is disposed on said second soft magnetic pole piece within said auxiliary module;
a magnetically activated, normally closed, switch is disposed on said first pole piece within said main module;
at least one battery is disposed within said main module;
a buzzer and more than one electrically powered light sources, powered by said battery through said magnetically activated switch, are disposed within said main module;
said light sources being adjacent to at least one light transmitting aperture formed on the housing of said main module;
whereby, when said car door is properly closed, said permanent magnet in said auxiliary module induces a magnetic field in said first soft magnetic pole piece in said main module, causing said magnetically activated switch to open, with said buzzer and said light sources in an inactive state;
when said car door is improperly closed, being ajar, said first soft magnetic pole piece is disaligned with said second soft magnetic pole piece, with the cessation of the magnetic field in said first soft magnetic pole piece, said magnetically activated switch returns to a closed state activating said buzzer and said light sources, providing a visible and audible warning to a user.
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Accused Products
Abstract
A multi-function car door closure warning sensor includes a main module secured to a car door adjacent to an edge thereof, and an auxiliary module secured to the car body and adjacent with the main module, when the car door is in a closed position. A battery, a first soft magnetic pole piece with an attached normally closed magnetic switch, a buzzer, two sets of L.E.D.'"'"'s, and an L.E.D. control circuit are disposed within the main module. A permanent magnet with an atached second soft magnetic pole piece are disposed within the auxiliary module. Whereby, when the door is properly closed, the first and second soft magnetic pole pieces are aligned and separated by a small gap. The permanent magnet induces a magnetic field in the first pole piece which causes the magnetic switch to open. When the car door is not properly closed, no magnetic field is induced in the first pole piece causing the magnetic switch to close, activating the buzzer and L.E.D. control circuit, which causes the two sets of L.E.D.'"'"'s to flash on and off intermittently in see-saw fashion.
33 Citations
6 Claims
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1. A car door closure warning system comprising a main module mounted on the exterior of a car door adjacent to an edge thereof, and an auxiliary module mounted on a car body adjacent with said main module, wherein:
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a first soft magnetic pole piece is disposed within said main module, protruding from a side thereof; a second soft magnetic pole piece is disposed within said auxiliary module, protruding from a side thereof, with said second soft magnetic pole piece being adjacent to and aligned with said first magnetic pole piece, when said car door is in a properly closed position; a permanent magnet is disposed on said second soft magnetic pole piece within said auxiliary module; a magnetically activated, normally closed, switch is disposed on said first pole piece within said main module; at least one battery is disposed within said main module; a buzzer and more than one electrically powered light sources, powered by said battery through said magnetically activated switch, are disposed within said main module; said light sources being adjacent to at least one light transmitting aperture formed on the housing of said main module;
whereby, when said car door is properly closed, said permanent magnet in said auxiliary module induces a magnetic field in said first soft magnetic pole piece in said main module, causing said magnetically activated switch to open, with said buzzer and said light sources in an inactive state;when said car door is improperly closed, being ajar, said first soft magnetic pole piece is disaligned with said second soft magnetic pole piece, with the cessation of the magnetic field in said first soft magnetic pole piece, said magnetically activated switch returns to a closed state activating said buzzer and said light sources, providing a visible and audible warning to a user. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification