Transparent wall-element

• US 3,085,464 A
• Filed: 10/18/1960
• Issued: 04/16/1963
• Est. Priority Date: 02/18/1956
• Status: Expired due to Term

• Current Assignee: Robert Touvay
• Original Assignee: Robert Touvay
• Inventors: ROBERT TOUVAY
• Application Number:
  US04/063,358
• Time in Patent Office: 910 Days
• US Class Current: 49/41
• CPC Class Codes: E06B 5/18 against harmful radiation against heat E06B5/16
• CPC Class Codes: F23M 11/042 Viewing ports of windows
• CPC Class Codes: F23M 7/00 Doors
• CPC Class Codes: G02B 23/2476 Non-optical details, e.g. housings, mountings, supports
• CPC Class Codes: G21F 7/03 Windows, e.g. shielded

Claims

1. AN ENCLOSURE, IN PARTICULAR AN ENCLOSURE WHICH IS THE SITE OF DANGEROUS RADIATIONS, HAVING A WALL AND INSPECTION MEANS MOUNTED THEREIN COMPRISING A STEPPED EMBRASURE IN THE WALL, A STEPPED FRAME FITTING THE EMBRASURE, SAID FRAME INCLUDING OPPOSED CYLINDRICAL STEPS, AND OPPOSED SURFACES OF CYLINDRICAL SECTION SET IN THE WALL, A CYLINDRICAL PORT FITTING INTO THE CYLINDRICAL SECTIONS AND HAVING CYLINDRICAL STEPS OVERLAPPING SAID STEPS, BEARING MEANS FOR THE PORT ENGAGED WITH SAID OVERLAPPING STEPS TO IMPART ROTATABILITY TO THE PORT, A VIEWING APERTURE EXTENDING THROUGH SAID PORT COMPRISING PROGRESSIVELY LARGER STEPPED SECTIONS CLOSED BY TRANSPARENT, REMOVABLE PLATES WHICH CLOSE THE APERTURE, A NEST OF TRANSPARENT PLATES INTERPOSED BETWEEN SAID CLOSING MEANS, SAID BEARING MEANS PERMITTING THE ROTATION OF THE CYLINDRICAL PORT TO A POSITION IN WHICH THE VIEWING APERTURE IS PROTECTED AGAINST THE RADIATIONS BY THE SURROUNDING FRAME.