Window-closing safety system

Patent · Tue Aug 26 00:00:00 EDT 1997

OSTI ID:527759

McEwan, T E

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.

• Research Organization: Univ. of California (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Univ. of California, Oakland, CA (United States)
• Patent Number(s): US 5,661,385/A/
• Application Number: PAN: 8-510,981
• OSTI ID: 527759
• Resource Relation: Other Information: PBD: 26 Aug 1997
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
AUTOMOBILES
WINDOWS
ENGINEERED SAFETY SYSTEMS
MICROWAVE RADIATION
SIGNAL DISTORTION
ELECTRIC MOTORS
SHUTDOWN