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US 6,580,355 B1Granted
Remote door entry system
AssigneeT.K.M. Unlimited, Inc.
InventorThomas K. Milo
Life of this patent
Estimating the term…
Abstract
A remote control door entry system, which may be installed in a door jamb/frame, in the center frame post of a door assembly that has a side light glass unit, or centered in the edge of the stationary door of a double door arrangement. The slim design of the present invention contributes to its significant versatility.
Claims33
A door entry system comprising:
- a first slide member which is selectively movable between an extended position and a retracted position such that, in its extended position, an end of the first slide member is positioned in an opening, and in its retracted position, the end of the first slide member is removed from the opening;
- a second slide member which is selectively movable between an extended position and a retracted position such that, in its extended position, an end of the second slide member is positioned in the opening, and in its retracted position, the end of the second slide member is removed from the opening;
- and,
- a drive which moves the first and second slide members in opposite directions such that, when the first slide member is in its extended position, the second slide member is in its retracted position, and when the second slide member is in its extended position, the first slide member is in its retracted position.
1 more element
A door entry system comprising:
- a first member movable between an engaged position and a disengaged position such that, in its engaged position, an end of the first member is positioned in an opening, and in its disengaged position, the end of the first member is positioned out of the opening;
- a second member movable between an engaged position and a disengaged position such that, in its engaged position, an end of the second member is positioned in the opening, and in its disengaged position, the end of the second member is positioned out of the opening;
- and,
- a selectively activated drive which effects movement of the first and second members, said first and second members moving to opposite engaged and disengaged positions with each activation of the drive.
1 more element
Dependencies are inferred from the claim text.