U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Confinement-cell window attachment

Patent 6182402 Issued on February 6, 2001. Estimated Expiration Date: Icon_subject July 8, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1747156

2259751

2638810

2771971

3173180

3203052

Uni-directional viewing system
Patent #: 3944336
Issued on: 03/16/1976
Inventor: Carr, Jr.

Guard-house of improved type
Patent #: 4555991
Issued on: 12/03/1985
Inventor: Bellezza

Vandal-resistant security view port
Patent #: 4571901
Issued on: 02/25/1986
Inventor: Morris ,   et al.

Door wicket or viewing port with polarizing lens
Patent #: 4719720
Issued on: 01/19/1988
Inventor: Olsen

More ...

Inventor

Application

No. 111924 filed on 07/08/1998

US Classes:

52/106, JAIL-TYPE STRUCTURE49/15, JAIL-TYPE CLOSURE WITH REMOTE CONTROL STATION49/57, Removable49/171, Viewing, ventilating, or packet passage52/79.9, With retaining or attaching means52/127.7, Structure includes tool or opening to provide access for a tool used in operating a locking, latching, attaching, or adjusting means52/202, AUXILIARY IMPERFORATE PANEL-LIKE SHIELD ATTACHED TO MAIN PANEL, BARRIER, OR FRAME52/213Retaining feature between frame and reveal

Examiners

Primary: Kent, Christopher T.
Assistant: Thissell, Jennifer I.

Attorney, Agent or Firm

International Class

E04H 003/08

Abstract

An apparatus for the viewing of an inmate in a cell while preventing the inmate from determining if he is being observed includes a frame enclosure with means for securing the apparatus about a cell window attached to the frame structure. A two-way mirror is attached to the frame enclosure and disposed proximate the cell window. A sheet of light attenuating material is disposed in the frame enclosure in planar alignment with respect to the two-way mirror a predetermined distance therefrom to darken the area intermediate the two-way mirror and the sheet of light attenuation material. Means for viewing through the two-way mirror are provided which include a lens or a video camera and display. An optional slot allows for manual positioning of the lens to permit optimum viewing into the cell. The means for securing includes a plurality of magnets disposed around the perimeter of the frame enclosure or by use of a hook and loop fastener. At least one handle is attached to the frame enclosure and is useful to move the apparatus from a first cell window to a second cell window, as may be necessary.

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