Abstract: A structural design and weld fabrication method for reinforced vinyl by eliminating butt seams, leaving 100% lap seams, as well as low cost, high strength internal beams for use in high quality air bed mattresses and all inflatable items.
Abstract: The invention is directed towards a film-based polymeric cellular matrix, methods for making the polymeric cellular matrix, articles of manufacture incorporating the polymeric matrix and methods for making articles of manufacture. The polymeric cellular matrix is characterized as a plurality of generally identical cells (open-ended geometric prisms) arranged to form a repeating geometric form. The matrix is particularly suited for use as a core between two panels.
Abstract: The invention pertains to a waterbed with at least one water-filled mattress, which forms a substantially flat bed surface when in an unloaded state and which is held inside a frame consisting of beams of foamed plastics. On the inside of the waterbed, at least one beam is convexly curved, proceeding upward in an arc from a carrier plate and continuing as a flat surface at the top, underneath the surface of the bed. The mattress, on the side facing the beam, has a concave recess conforming to the arc of the beam and has an extension of rectangular cross section, which covers the top surface of the beam, the extension preferably extending all the way to, and being flush with, the top outside edge of the beam.
Abstract: An air mattress includes an upper sheet with a tufted top surface, a lower sheet, and front and rear sheets. The front sheet has upper, lower and lateral edges. The upper edge of the front sheet is sealed to a front edge of the upper sheet, is longer than the front edge of the upper sheet, and has excess portions on two sides of the front edge of the upper sheet. The rear sheet has upper edge, lower and lateral edges. The upper edge of the rear sheet is sealed to a rear edge of the upper sheet, is longer than the rear edge of the upper sheet, and has excess portions on two sides of the rear edge of the upper sheet. The lower sheet has a front edge sealed to the lower edge, the lateral edges, and the excess portions of the upper edge of the front sheet. The lower sheet has a rear edge sealed to the lower edge, the lateral edges, and the excess portions of the upper edge of the rear sheet. The lower sheet further has lateral edges sealed to lateral edges of the upper sheet.