Ventilating panels

• US 3,308,586 A
• Filed: 01/13/1964
• Issued: 03/14/1967
• Est. Priority Date: 01/13/1964
• Status: Expired due to Term

• Current Assignee: Kern C. Olson
• Original Assignee: Kern C. Olson
• Inventors: Olson, Kern C.
• Application Number:
  US04/337,210
• Time in Patent Office: 1,156 Days
• US Class Current: 52/99
• CPC Class Codes: E04B 9/045 being laminated

Claims

1. IN A VENTILATING CEILING HAVING A VENTILATING PANEL WITH VENTILATING OPENINGS THROUGH ITS BODY PORTION FOR THE PASSAGE OF AIR THROUGH THE VENTILATING PANEL, AND HAVING A SUPPORTING GRID INCLUDING HORIZONTAL FLANGES PROVIDING A CIRCUITOUS LEDGE REMOVABLY SUPPORTING THE VENTILATING PANEL, A LAYER OF AIR-IMPERVIOUS MATERIAL OVER AT LEAST A PORTION OF THE BACK OF THE VENTILATING PANEL, SAID LAYER COVERING AT LEAST SOME OF THE VENTILATING OPENINGS OF THE BODY PORTION AND SAID LAYER BEING SECURED TO THE PANEL AT REGIONS OTHER THAN THE PORTION OF THE BACK HAVING SAID COVERED VENTILATING OPENINGS, SAID LAYER HAVING MEANS AT A SELECTED PORTION WITHIN THE PERIPHERY OF THE PANEL AND IN CLOSE PROXIMITY TO AT LEAST ONE VENTILATING OPENING IN THE PANEL FOR READILY SEVERING AND REMOVING A PORTION OF THE LAYER OVER SAID VENTILATING OPENING.