Back to results
US 4,308,730 AGranted
Electrical plug locking device
OwnerDonald P. Rothinventor
Life of this patent
Estimating the term…
Abstract
A padlock is provided with a straight length of the shackle adapted to be received in the socket of the lock with a reduced diameter to fit within the holes in the live tines of a standard electrical plug so that the plug may not be inserted into an electrical outlet.
Claims5
In a padlock having a socket and a shackle, the improvement comprising a straight length of the shackle adapted to be received in the socket having a diameter less than the diameter of the openings in live tines of a standard electrical plug, and a length greater than the distance between the outer surfaces of the tines.
Dependencies are inferred from the claim text.