Device for sensing an obstacle in the opening range of a...

Electricity: motive power systems – Motor-reversing – Automatic and/or with time-delay means

Reexamination Certificate

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Details

C388S903000, C073S774000, C049S027000, C324S688000

Reexamination Certificate

active

07015666

ABSTRACT:
A device for sensing an obstacle in said opening range of an automotive closure element movable between an open position and and closed position, more particularly an electrically powered door window (20) or sunroof is provided with a weatherseal (30) sealing the window pane (20). The weatherseal (30) is made of an elastomeric material and secured to a frame (12) of the motor vehicle (10). The device comprises in addition a sensor for sensing an obstacle in the opening range of the closure element (20), the sensor comprising at least one electrical conductor (40) generating an electrical field (F) in the opening range of the closure element (20).The device achieves by simple ways and means an engineered orientation of the electrical field such that any interference by the closure element (20) to the capacitive change in the electrical field (F) is precluded by reason of conductive means (50) comprising a conductive surface (51) made of an electrically conductive material. The conductive means (50) are electrically insulated and shield the window pane (20) from the electrical field (F) generated by the electrical conductor (40).

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English Language Abstract of DE 299 21 958 U1.
English Language Abstract of EP 0856425.
Jorg Ublein, Trapping protector for power windows by means of influencing an electric field, Thesis, Mar. 1992, 7 pages, Fachhochschule Coburg, Germany.
Translation of relevant pages of above thesis, 4 pages.
Horst Niehus, Experimental physics Il, Electricity 1, Lecture Series 1.15, 2003, 5 pages, Humboldt University Berlin, Faculty of Mathematics, Berlin, Germany.
Translation of relevant pages of above lecture, 5 pages.

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