Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1978-03-24
1980-03-25
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
174 67, 200 5109, 339 41, 340687, G08B 1302, G08B 2100
Patent
active
041952901
ABSTRACT:
An electrical power receptacle includes a cover for receipt of power prongs, behind which is located a pair of electric power terminals. A lockout means having a pair of slots therein is located interposed between the cover of the receptacle and the pair of electric power terminals. The lockout means is rotatable between a closed position wherein said lockout means occludes at least one of the slots in the cover to prevent the prongs of the plug from being inserted therein and an open position wherein the slots in the lockout means align with the slots in the cover to enable the prongs of the plug to be inserted therethrough and into electrical communication with the power terminals. A switch is coupled to the lockout means and provides a first electrical signal whenever the lockout means is in the closed position or when the lockout means is in the open position with a plug's prongs inserted within the slots of the receptacle. The switch provides a second signal if the lockout means is in the open position and no plug is within the receptacle. The switch is electrically isolated from the power terminals.
REFERENCES:
patent: 2524250 (1950-10-01), Bierce
patent: 2916733 (1959-12-01), Hirsch
patent: 3192518 (1965-06-01), Sliman
patent: 3801971 (1974-04-01), Stendig et al.
Magil Paul
Word, III William F.
Paul Alan Magil & Associates
Swann III Glen R.
LandOfFree
Electrical receptacle for use in alarm system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrical receptacle for use in alarm system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical receptacle for use in alarm system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1403906