Static structures (e.g. – buildings) – Framing to receive door – doorjamb – or window sash – Retaining feature between frame and reveal
Patent
1978-02-21
1980-12-09
Leppink, James A.
Static structures (e.g., buildings)
Framing to receive door, doorjamb, or window sash
Retaining feature between frame and reveal
49485, 49504, 52204, 52730, E06B 160
Patent
active
042376653
ABSTRACT:
The invention provides a structural assembly for use in a building comprising a sub-frame structural element and a metal window frame element; said sub-frame element itself comprising a strip of corrosion-resistant liquid-impermeable material (e.g. unplasticised polyvinylchloride) of substantially constant cross-section throughout its length, said cross-section providing a substantially rectangular overall shape, providing the strip with two side faces and two edge faces, at least two parallel longitudinally extending grooves in one side face of said strip; and intermediate "land" on said one side face between each adjacent pair of said at least two grooves; two outer "lands" located respectively between each laterally outer groove of said at least two grooves and the adjacent edge face of said strip, said two outer "lands" being of unequal width; said window frame element having a longitudinally extending web, and said sub-frame element and said window frame element being secured to each other with the web supported by at least one of said "lands", there being at least one of said grooves located under said web.
The groove or grooves located under the web of the window frame element provides a moisture barrier and any groove on the inside of the said web provides a condensation trough. In a preferred form, the sub-frame element is also grooved on the opposite side, and means are provided for securing the sub-frame element to the wall.
REFERENCES:
patent: 3057444 (1962-10-01), Walberg
patent: 3486288 (1969-12-01), Pyne
patent: 3707815 (1973-01-01), Molyneax
patent: 3711995 (1973-01-01), Anderson
patent: 4084361 (1979-04-01), Aspans
Leppink James A.
Raduazo Henry E.
Radway Plastics Limited
Smith, Jr. John C.
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