Thermally insulated window with ventilation ducts

Details Thermally insulated window with ventilation ducts Thermally insulated window with ventilation ducts

1985-07-10

1987-05-12

Joyce, Harold

98 331, 98 411, 98116, F24F 1318

Patent

active

046640240

ABSTRACT:
A thermally insulated window includes intake and discharge ducts extending between a pair of interconnected interior and exterior metallic frame pieces, and dampers pivotably mounted on the ducts to open and close openings of the ducts which face the outside atmospheric air. The ducts and the dampers are made of a thermally insulative material such as a synthetic resin. The dampers are actuated by power transmitting mechanisms which are disposed within the respective ducts and are adapted to be actuated from the interior side of the window. The ducts, dampers and the power transmitting mechanisms do not deteriorate the thermal insulating properties of the window as a whole.

REFERENCES:
patent: 3977466 (1976-08-01), Johansson
patent: 4437868 (1984-03-01), Kuhlman
patent: 4558638 (1985-12-01), Rock et al.

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