Waterbed mattress marginal perimeter air support and method of manufacture thereof
First Claim
1. An air perimeter support for supporting the marginal perimeter of a waterbed mattress, said air perimeter support comprising:
- a first elongated sheet of flexible, substantially dimensionally stable material folded back on itself and joined together at a location spaced from the longitudinal marginal side edges thereof to form an elongated chamber, of substantially rectangular cross-section, intermediate said longitudinal marginal side edges, one longitudinal marginal side edge being again folded back and joined to said chamber at the wall opposite the wall formed by the material adjacent to the other longitudinal marginal side edge; and
a second sheet of flexible, substantially dimensionally stable material, said second sheet being located in the interior of said elongated chamber and joined to at least three adjacent walls of said chamber starting with the said wall to which said one longitudinal marginal side edge is joined, and going around said chamber opposite to the fold of said one longitudinal marginal side edge.
0 Assignments
0 Petitions
Accused Products
Abstract
An improved construction for an air perimeter support for the marginal perimeter of a waterbed mattress, and the method for manufacturing such improved air perimeter support. The improved air perimeter support includes a first sheet of flexible, substantially dimensionally stable material folded back on itself and joined together at a location spaced from the longitudinal marginal side edges thereof to form an elongated chamber, of substantially rectangular cross-section, intermediate the marginal side edges. One longitudinal marginal side edge is again folded back and joined to the chamber at the wall opposite the wall formed by the other longitudinal marginal side edge. A second sheet of flexible, substantially dimensionally stable material, is located in the interior of the elongated chamber and joined to at least three adjacent walls of the chamber starting with the the wall to which the one longitudinal marginal side edge is joined and going around said chamber opposite to the fold of the one longitudinal marginal side edge.
15 Citations
9 Claims
-
1. An air perimeter support for supporting the marginal perimeter of a waterbed mattress, said air perimeter support comprising:
-
a first elongated sheet of flexible, substantially dimensionally stable material folded back on itself and joined together at a location spaced from the longitudinal marginal side edges thereof to form an elongated chamber, of substantially rectangular cross-section, intermediate said longitudinal marginal side edges, one longitudinal marginal side edge being again folded back and joined to said chamber at the wall opposite the wall formed by the material adjacent to the other longitudinal marginal side edge; and a second sheet of flexible, substantially dimensionally stable material, said second sheet being located in the interior of said elongated chamber and joined to at least three adjacent walls of said chamber starting with the said wall to which said one longitudinal marginal side edge is joined, and going around said chamber opposite to the fold of said one longitudinal marginal side edge. - View Dependent Claims (2, 3, 4)
-
-
5. A method for manufacturing an air perimeter support for supporting the marginal perimeter of a waterbed mattress, said method comprising the steps of:
-
(1) on a substantially flat surface, overlaying an elongated flexible, substantially dimensionally stable sheet of a first width with an elongated flexible, substantially dimensionally stable sheet of a second width greater than the width of said first sheet; (2) gathering two spaced apart portions of said second sheet intermediate and substantially parallel to the longitudinal marginal side edges thereof so that said portions are spaced from said first sheet; (3) sealing said second sheet to said first sheet along substantially parallel lines respectively on either side of said gathered portions of said second sheet; (4) folding said second sheet back on itself with one longitudinal marginal side edge overlying the other longitudinal marginal side edge to form a loop with first sheet being internal of said loop; (5) sealing together portions of said second sheet along a line at the base of said loop; (6) sealing together portions of said second sheet along a line parallel to said line at the base of said loop and between said line at the base of said loop and said longitudinal marginal side edge; (7) folding one longitudinal marginal side edge back to the top of said loop; and (8) sealing said one longitudinal marginal side edge to the top of said loop to form an elongated arrangement. - View Dependent Claims (6, 7, 8, 9)
-
Specification