Patent References 1747156 2259751 2638810 2771971 3173180 3203052 Uni-directional viewing system Guard-house of improved type Vandal-resistant security view port Door wicket or viewing port with polarizing lens InventorApplicationNo. 111924 filed on 07/08/1998US 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 revealExaminersPrimary: Kent, Christopher T.Assistant: Thissell, Jennifer I. Attorney, Agent or FirmInternational ClassE04H 003/08AbstractAn 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.Field of SearchViewing, ventilating, or packet passageJAIL-TYPE CLOSURE WITH REMOTE CONTROL STATION Removable Within encompassing closure WITH PROTECTIVE GRILLE OR SAFETY GUARD JAIL-TYPE STRUCTURE With retaining or attaching means AUXILIARY IMPERFORATE PANEL-LIKE SHIELD ATTACHED TO MAIN PANEL, BARRIER, OR FRAME Specific hand or tool engaging surface on structure component Structure includes tool or opening to provide access for a tool used in operating a locking, latching, attaching, or adjusting means FRAMING TO RECEIVE DOOR, DOORJAMB, OR WINDOW SASH Retaining feature between frame and reveal | |