skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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 an 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. 5 figs.

Inventors:
Issue Date:
Research Org.:
University of California
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
527759
Patent Number(s):
5,661,385
Application Number:
PAN: 8-510,981
Assignee:
Univ. of California, Oakland, CA (United States) PTO; SCA: 330601; PA: EDB-97:125427; SN: 97001843774
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 26 Aug 1997
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; AUTOMOBILES; WINDOWS; ENGINEERED SAFETY SYSTEMS; MICROWAVE RADIATION; SIGNAL DISTORTION; ELECTRIC MOTORS; SHUTDOWN

Citation Formats

McEwan, T.E. Window-closing safety system. United States: N. p., 1997. Web.
McEwan, T.E. Window-closing safety system. United States.
McEwan, T.E. Tue . "Window-closing safety system". United States.
@article{osti_527759,
title = {Window-closing safety system},
author = {McEwan, T.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 an 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. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {8}
}