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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Greenfield; Arnold
Address:
North Miami Beach, FL
No. of patents:
2
Patents:












Patent Number Title Of Patent Date Issued
5450065 Early warning heat sensor system September 12, 1995
A heat-sensitive alarm trigger is used to set off a fire alarm system. The alarm circuit is triggered either when a resistance across two sensor leads, between which the alarm trigger is connected, falls below the rated trigger resistance or when an emf of a certain strength is produced
5384562 Early warning heat sensor system January 24, 1995
A heat-sensitive alarm trigger is used to set off a fire alarm system having an alarm circuit with a rated trigger resistance. The alarm circuit is triggered when a resistance across two sensor leads, between which the alarm trigger is connected, falls below the rated trigger resistance.










 
 
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