Electronic locking system
First Claim
Patent Images
1. An electronic lock suitable for insertion into a receptacle for use with a throw connected to a pair of elongate throw pins, said lock comprising:
- (a) an elongate cylinder housed within and rotatable about a longitudinal axis with respect to a shell, said cylinder engaging said throw pins during rotation of said cylinder;
(b) said shell comprising a stationary portion and a retaining portion having a projecting lug, said retaining portion being rotatable with respect to said stationary portion so that said lug resists removal of said lock from said receptacle;
(c) said cylinder containing an electrically powered locking mechanism capable of selectively interfering with rotation of said cylinder, said locking mechanism including an elongate solenoid assembly aligned parallel to said longitudinal axis; and
(d) said lock defining within said cylinder at least one elongate longitudinally aligned cavity for receiving at least one of said pair of elongate throw pins when said lock is inserted into said receptacle, said throw pins and said solenoid assembly being generally parallel to one another when said lock is received within said receptacle.
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Abstract
In a first aspect, an electronic lock suitable for replacing interchangeable core locks has a solenoid assembly longitudinally aligned parallel to the rotational axis of the cylinder of the lock. In a second aspect an electronic lock has a ferromagnetic enclosure that surrounds at least a portion of a solenoid assembly when the cylinder of the lock is free to rotate.
25 Citations
25 Claims
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1. An electronic lock suitable for insertion into a receptacle for use with a throw connected to a pair of elongate throw pins, said lock comprising:
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(a) an elongate cylinder housed within and rotatable about a longitudinal axis with respect to a shell, said cylinder engaging said throw pins during rotation of said cylinder;
(b) said shell comprising a stationary portion and a retaining portion having a projecting lug, said retaining portion being rotatable with respect to said stationary portion so that said lug resists removal of said lock from said receptacle;
(c) said cylinder containing an electrically powered locking mechanism capable of selectively interfering with rotation of said cylinder, said locking mechanism including an elongate solenoid assembly aligned parallel to said longitudinal axis; and
(d) said lock defining within said cylinder at least one elongate longitudinally aligned cavity for receiving at least one of said pair of elongate throw pins when said lock is inserted into said receptacle, said throw pins and said solenoid assembly being generally parallel to one another when said lock is received within said receptacle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An electronic lock, comprising:
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(a) a cylinder housed within and rotatable with respect to a shell;
(b) an electrically powered locking mechanism capable of selectively interfering with rotation of said cylinder, said locking mechanism including a solenoid having a solenoid plunger, said solenoid plunger being in a first position when said locking mechanism interferes with rotation of said cylinder, and said solenoid being in a second position when said cylinder is free to rotate; and
(c) a ferromagnetic enclosure having an opening for receiving said solenoid plunger, wherein said enclosure encloses at least a portion of said solenoid plunger when said solenoid plunger is in said second position. - View Dependent Claims (17, 18, 19, 20, 22, 23, 24, 25)
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21. The electronic lock of
claim 21 wherein at least 75% of said solenoid plunger is received within said ferromagnetic enclosure when said solenoid plunger is in said second position.
Specification