1986-06-13
1987-06-16
Joyce, Harold
98103, F24F 1308
Patent
active
046728902
ABSTRACT:
A lightweight load bearing register having a frame with a generally L-shaped configuration, the frame being in four pieces joined at the corners, and having a supporting grid of groups of transverse and longitudinal strips of sheet metal, one of the groups being formed of a single thickness of sheet metal, with notches at spaced intervals, and the other group being formed of two thicknesses of sheet metal, having a thickness thinner than one-half of the thickness of the first group, the strips in the second group defining an elongated folded blade-like structure with a hollow interior, with a space between opposite sides which is substantially equal in width to the thickness of the sheet metal of which they are formed, and radiussed along at least their upper extremity, the width of the blade members being slightly greater than a dimension of the notches in the first group so that when the second group is forced into the notches they will be squeezed, reducing the spacing between their opposite sides.
REFERENCES:
patent: 812158 (1906-02-01), Tuttle
patent: 1969437 (1934-08-01), Truax
patent: 2464442 (1949-03-01), Roo
patent: 2849943 (1958-09-01), Zurawski
patent: 3589265 (1971-06-01), Hedrick
Joyce Harold
Rachels Industries, Inc.
Rolston George A.
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