Revolving door with metal detection security

• US 6,742,301 B1
• Filed: 09/05/2001
• Issued: 06/01/2004
• Est. Priority Date: 09/05/2000
• Status: Active Grant

• Current Assignee: Tomsed Corporation (Kareni BV)
• Original Assignee: Tomsed Corporation (Kareni BV)
• Inventors: Schwarz, Milan
• Primary Examiner(s): REDMAN, JERRY E
• Application Number:
  US09/946,867
• Time in Patent Office: 1,000 Days
• Field of Search: 49/42, 49/43, 49/44, 106/6, 106/7, 106/8, 106/12, 106/13, 106/67, 106/68
• US Class Current: 49/42
• CPC Class Codes: E05D 15/02 for revolving wings
• CPC Class Codes: E05G 5/003 Entrance control E05G5/02 takes precedence
• CPC Class Codes: E05G 5/02 Trapping or confining mechanisms, e.g. transaction security boothsthief or burglar incapacitating means in general G08B15/00
• CPC Class Codes: E05Y 2900/132 Doors

Abstract

A revolving door has a metal detection function. A metal detector will detect a predetermined sufficient amount of metal. The door will not allow a user with such a sufficient amount of metal to pass through. One also cannot pass a gun or other metal object through the revolving door. The door itself is modified by having its metal glass wing holding supports extend only for a portion of the radius of the door wing. In another embodiment, a security revolving door is combined with metal detection security.

Claims

1. A control system and a security door of a type having a housing with a first portal and a second portal, a door member rotatably disposed in the housing and having a plurality of door wings which, in cooperation with the housing, define a plurality of compartments moveable between the first and second portals in response to rotation of the door member, the control system comprising:

a metal detector disposed proximate the first portal for issuing a metal detection output when a metal is detected;

means for rotating the door member to move a selected compartment from one of the first and second portals to the other of the first and second portals;

controller means, connected to the metal detector and the means for rotating, for stopping the means for rotating in response to the metal detection output from the metal detector,

wherein the door wings of the door member each comprise a panel and a frame for holding the panel, and the frame consists essentially of a nonmetallic material at a radial outer portion including a vertical portion and horizontal portions of the frame extending above and below the panel thereof, whereby the frame will not be detected by the metal detector when the door wings pass by the metal detector.

2. The system of claim 1 wherein one side of the metal detector is accessible without passing through a security door.

3. The system of claim 1 wherein the panel consists essentially of a nonmetallic material.

4. The system of claim 1 wherein the frame consists of a nonmetallic material.

5. A control system for a security revolving door of a type having a housing with a first portal and a second portal, a door member rotatably disposed in the housing and having a plurality of door wings which, in cooperation with the housing, define a plurality of compartments moveable between the first and second portals in response to rotation of the door member, the control system comprising:

a metal detector disposed proximate the first portal for issuing a metal detection output when a metal is detected;

means for rotating the door member to move a selected compartment from one of the first and second portals to the other of the first and second portals;

controller means, connected to the metal detector and the means for rotating, for stopping the means for rotating in response to the metal detection output from the metal detector,

wherein the door wings of the security revolving door consist essentially of a nonmetallic material at a radial outer portion thereof, whereby the door wings will not be detected by the metal detector, wherein a radially outer portion of the door wings pass through the metal detector, and at least the radially outer portion consists essentially of a nonmetallic material.

6. A control system for a security revolving door of a type having a housing with a first portal and a second portal, a door member rotatably disposed in the housing and having a plurality of door wings which, in cooperation with the housing, define a plurality of compartments moveable between the first and second portals in response to rotation of the door member, the control system comprising:

a metal detector disposed proximate the first portal for issuing a metal detection output when a metal is detected;

means for rotating the door member to move a selected compartment from one of the first and second portals to the other of the first and second portals;

to controller means, connected to the metal detector and the means for rotating, for stopping the means for rotating in response to the metal detection output from the metal detector,

wherein the door wings of the security revolving door consist essentially of a nonmetallic material at a radial outer portion thereof, whereby the door wings will not be detected by the metal detector, wherein the door wings have an electromagnet, and the electromagnet is located at a position on the door wings inside a radial midpoint of the door wings.