William J Irving

US Patent:

60065613, Dec 28, 1999

Filed:

May 7, 1997

Appl. No.:

8/852775

Inventors:

James D. Hill - Lexington KY
William Fain Irving - Lexington KY
James Thomas Loiselle - Nicholasville KY
Joseph W. Luciano - Lexington KY
Kenneth H. Mimlitch - Lexington KY
John E. Passafiume - Lexington KY

Assignee:

Mas-Hamilton Group, Inc. - Lexington KY

International Classification:

E05B 4700

US Classification:

70276

Abstract:

The technique for electronically resetting a magnetically sealed solenoid to an unattracted, unactuated position is described for use with solenoids which have either a residual magnetic or a permanent magnet holding force necessary to retain the armature of the solenoid in its actuated position until such time as the armature is either physically displaced by a mechanical force or an electronic signal is applied to the solenoid. This displacement creates a reverse polarity magnetic field, effectively overcoming the magnetic field acting to hold the armature in its actuated position, permitting a small mechanical force to reset the armature. In order to prevent a lock or similar device from being conditioned for opening and possibly left in that condition for a significant period of time while unattended, jeopardizing the security of the container and its contents, the actuation of the armature in the reset or release phase may occur a relatively short time following its actuation.

US Patent:

61787914, Jan 30, 2001

Filed:

Dec 28, 1999

Appl. No.:

9/474042

Inventors:

James D. Hill - Lexington KY
William Fain Irving - Lexington KY
James Thomas Loiselle - Nicholasville KY
Joseph W. Luciano - Lexington KY
Kenneth H. Mimlitch - Lexington KY
John E. Passafiume - Lexington KY

Assignee:

Mas-Hamilton Group, Inc. - Lexington KY

International Classification:

E05B 4700

US Classification:

70276

Abstract:

The technique for electronically resetting a magnetically sealed solenoid to an unattracted, unactuated position is described for use with solenoids which have either a residual magnetic or a permanent magnet holding force necessary to retain the armature of the solenoid in its actuated position until such time as the armature is either physically displaced by a mechanical force or an electronic signal is applied to the solenoid. This displacement creates a reverse polarity magnetic field, effectively overcoming the magnetic field acting to hold the armature in its actuated position, permitting a small mechanical force to reset the armature. In order to prevent a lock or similar device from being conditioned for opening and possibly left in that condition for a significant period of time while unattended, jeopardizing the security of the container and its contents, the actuation of the armature in the reset or release phase may occur a relatively short time following its actuation.