Communications: electrical – Vehicle parking indicators
Patent
1995-03-24
1997-04-22
Coles, Sr., Edward L.
Communications: electrical
Vehicle parking indicators
340435, 340507, B60Q 148, B60Q 100, G08B 7900
Patent
active
056232594
ABSTRACT:
A tubular shroud defines the field of view of a passive infrared sensor placed above the desired stopping point for a vehicle in a garage. As the vehicle enters the field of view, a warning signal is activated. A second sensor, with a field-defining shroud, placed in the path of an oncoming vehicle may be used to activate the first sensor ensuring that the warning signal is produced only in response to the arrival of a vehicle at the desired position rather than in response to the movement of a person or an animal.
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Coles Sr. Edward L.
Grant II Jerome
Shapiro Herbert M.
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