Ventilator cover with a sealing element and method for the produ

Details Ventilator cover with a sealing element and method for the produ Ventilator cover with a sealing element and method for the produ

1995-02-21

1996-10-15

Joyce, Harold

Ventilation

Having outlet airway

Along roof ridge

52 57, 52199, F24F 702

Patent

active

055649769

ABSTRACT:
Ventilator cover (1) for exhaust ventilation of roofs in the ridge, hip or arris area, with preferably a plastic ventilator cover body (2) and sealing element (9), the sealing element (9) having a shape approximating that of a wedge in cross section and a sealing element body (10) which consists of plastic foam. To improve sealing properties and to increase the service life of the sealing element (9), an essentially nonporous skin (14) is provided on at least one of the free surfaces (11, 12), preferably on outside surface (11), of the sealing element body (10) so as to cover roughly its entire area. This skin (14) is formed from a structural change of the material of the sealing element body (10) at its surface (11, 12), so that the skin consists of the same plastic as the sealing element body (10), and is permanently connected to it.

REFERENCES:
Beilage DDH, H.6, 1991, Eing, DPA 3.4.91 (published 27 Mar. 1991).
Extract of pp. 68-73, Portion of Chapter III of Kunststoff-Taschenbuch, published 1992.

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