Window-closing safety system
Abstract
A safety device includes a wire loop embedded in the glass of a passenger car window and routed near the closing leading-edge of the window. The wire loop carries microwave pulses around the loop to and from a transceiver with separate output and input ports. An evanescent field only and inch or two in radius is created along the wire loop by the pulses. Just about any object coming within the evanescent field will dramatically reduce the energy of the microwave pulses received back by the transceiver. Such a loss in energy is interpreted as a closing area blockage, and electrical interlocks are provided to halt or reverse a power window motor that is actively trying to close the window.
- Inventors:
-
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 871119
- Patent Number(s):
- 5661385
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E05 - LOCKS E05F - DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
E - FIXED CONSTRUCTIONS E05 - LOCKS E05Y - INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- window-closing; safety; device; wire; loop; embedded; glass; passenger; car; window; routed; near; closing; leading-edge; carries; microwave; pulses; transceiver; separate; output; input; ports; evanescent; field; inch; radius; created; coming; dramatically; reduce; energy; received; loss; interpreted; blockage; electrical; interlocks; provided; halt; reverse; power; motor; actively; trying; close; safety device; input ports; wire loop; pulses received; microwave pulses; microwave pulse; rate output; wave pulse; dramatically reduce; /318/324/340/
Citation Formats
McEwan, Thomas E. Window-closing safety system. United States: N. p., 1997.
Web.
McEwan, Thomas E. Window-closing safety system. United States.
McEwan, Thomas E. Wed .
"Window-closing safety system". United States. https://www.osti.gov/servlets/purl/871119.
@article{osti_871119,
title = {Window-closing safety system},
author = {McEwan, Thomas E},
abstractNote = {A safety device includes a wire loop embedded in the glass of a passenger car window and routed near the closing leading-edge of the window. The wire loop carries microwave pulses around the loop to and from a transceiver with separate output and input ports. An evanescent field only and inch or two in radius is created along the wire loop by the pulses. Just about any object coming within the evanescent field will dramatically reduce the energy of the microwave pulses received back by the transceiver. Such a loss in energy is interpreted as a closing area blockage, and electrical interlocks are provided to halt or reverse a power window motor that is actively trying to close the window.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1997},
month = {Wed Jan 01 00:00:00 EST 1997}
}
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