Waterbed mattress with inflatable margins

Details Waterbed mattress with inflatable margins Waterbed mattress with inflatable margins

1976-08-11

1977-12-27

Gilliam, Paul R.

Beds

Bedsteads

Element or detail

A67C 2708

Patent

active

040645797

ABSTRACT:
A waterbed mattress adapted to fit within a rigid frame comprises a water-containing main chamber and at least one supplemental chamber along the perimeter of the main chamber for containing a fluid giving structural rigidity to the perimeter, particularly along the upper boundary abutting the frame. The supplemental chamber is established by an imperforate flexible membrane internally spanning the mattress corner between the top panel and the adjacent side panel. The cross sectional length of the membrane is not greater than the dimension of the adjacent top and side panel segments which constitute the outer walls of the chamber.

REFERENCES:
patent: 2691179 (1954-10-01), Kann
patent: 3864768 (1975-02-01), Fraige et al.
patent: 3918110 (1975-11-01), Cantillo et al.
patent: 3925835 (1975-12-01), Pennington et al.

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