Insulative structure

Details Insulative structure Insulative structure

1982-03-01

1984-05-01

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156216, 156227, 156297, 156300, 160133, 160230, B31F 300

Patent

active

044459580

ABSTRACT:
To insulate a window, the bottoms, the ends and a portion of the tops near the ends of a plurality of relatively-thick, relatively-stiff polyurethane strips are cemented to a flexible fabric by an elastomer. The maximum width of the polyurethane strips increases with their position along the fabric as the square root of a function of the stretching ability of the elastomeric cement and the radius from the center of the roller to the strip. That function includes the difference between the square of a first quantity and a second quantity, the first quantity being the sum of the radius of the particular rolled end and the stretching ability of the elastomer at the edge of the strip and the second quantity being the radius squared. The uppermost polyurethane strip forms a sealing engagement with the sill, the two sides of the backing and the ends of the strips ride in sealing tracks and the bottom strip rests on the sill to form a compartment with the window.

REFERENCES:
patent: 2025926 (1935-12-01), Winter
patent: 2528829 (1950-11-01), Hintersteiner
patent: 2564197 (1951-08-01), Dobkin
patent: 3084403 (1963-04-01), Elmendorf
patent: 3611655 (1971-10-01), Loebner

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