Vincent J Frallicciardi

US Patent:

6609738, Aug 26, 2003

Filed:

Oct 26, 1999

Appl. No.:

09/427503

Inventors:

Thomas Roth - Reno NV
Dennis Wojdan - Sparks NV
Vincent Frallicciardi - Reno NV
Robert Cook - Sparks NV

Assignee:

Securitron Magnalock Corp. - Sparks NV

International Classification:

E05C 1756

US Classification:

2922515, 292 92, 292144, 292DIG 61

Abstract:

An electromagnetic door lock system, allowing emergency exiting of a building, including an armature mount allowing considerable outward movement of the door with respect to the door frame on which the electromagnet is mounted, whereby outward movement of the door initiates a time delay door release, and gives an increased reassurance that the door will open in an emergency, and allows for improved tamper resistance and reduced false alarms, as the distance the door opens out of the door frame in response to actuation of a panic bar from within is greater than that of conventional systems. A tamper resistant door position sensor includes redundant magnetic reed switches for sensing the position of the door and can include an additional reed switch for detecting when an external magnet is placed near the sensor in an attempt to tamper with the system.

US Patent:

61355151, Oct 24, 2000

Filed:

Sep 16, 1999

Appl. No.:

9/397974

Inventors:

Thomas E. Roth - Reno NV
Vincent J. Frallicciardi - Reno NV

Assignee:

Securitron Magnalock Corp. - Sparks NV

International Classification:

E05C 1756

US Classification:

2922515

Abstract:

A shear-type electromagnetic lock is disclosed whose armature can approach the electromagnet from any transverse direction, which can be mounted in any orientation with respect to gravity, and which does not require any door position sensing means. The armature includes a pair of standoffs in the form of conically projecting buttons affixed thereto, the buttons projecting from the plane of contact between the armature and the electromagnet. The buttons have a base angle of 60-80 degrees adjacent the armature, and an angle of 45 degrees distal from the armature, and terminate in a smoothly rounded point. The armature is mounted to a sub-plate via counteracting springs such that the armature "floats" on the sub-plate, with the distance between the armature and the sub-plate being adjustable via adjusting screws. A matching electromagnet assembly for mounting to a door frame includes matching conical depressions positionally corresponding to the conical buttons such that the buttons seat into the depressions when the armature and electromagnet are properly aligned. The buttons and recesses are arranged in a staggered pattern.

US Patent:

60071192, Dec 28, 1999

Filed:

Oct 6, 1997

Appl. No.:

8/944991

Inventors:

Thomas E. Roth - Reno NV
Vincent J. Frallicciardi - Reno NV

Assignee:

Securitron Magnalock Corp. - Sparks NV

International Classification:

E05C 1916

US Classification:

2922515

Abstract:

A shear-type electromagnetic lock is disclosed whose armature can approach the electromagnet from any transverse direction, which can be mounted in any orientation with respect to gravity, and which does not require any door position sensing means. The armature includes a pair of standoffs in the form of conically projecting buttons affixed thereto, the buttons projecting from the plane of contact between the armature and the electromagnet. The buttons have a base angle of 60-80 degrees adjacent the armature, and an angle of 45 degrees distal from the armature, and terminate in a smoothly rounded point. The armature is mounted to a sub-plate via counteracting springs such that the armature "floats" on the sub-plate, with the distance between the armature and the sub-plate being adjustable via adjusting screws. A matching electromagnet assembly for mounting to a door frame includes matching conical depressions positionally corresponding to the conical buttons such that the buttons seat into the depressions when the armature and electromagnet are properly aligned. The buttons and recesses are arranged in a staggered pattern.