# US 4,393,531 A · Liner for a water bed

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- Number: US 4,393,531 A
- Document ID: US4393531A
- Status: Granted
- Kind: A
- Application number: 06/209,388
- Filed: 1980-11-24
- Granted: 1983-07-19
- Earliest claimed: 1980-11-24
- Inventors: Eugenio D. Hodel
- Web page: https://patentgrep.com/patent/US4393531A

## CPC

- A47C 27/085: {of liquid type, e.g. filled with water or gel}
- F16N 31/006: {Drip trays}
- Y10S 5/915: with vibrating means
- A47C: CHAIRS; SOFAS; BEDS
- F16N: LUBRICATING
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A liner for a water bed wherein the liner includes a flat planar flexible panel forming the bottom and integral upright sides covered with a flexible material, the material forming the bottom and sides presenting a water tight enclosure, the sides being reinforced by rigid panel members, the entire liner being self supporting in a first position forming a liner for enclosing the mattress of a water bed therein and foldable to a second folded position for transport or storage.

## Claims

### Claim 1

In a waterbed which comprises a liquid containing mattress disposed in a frame, the improvement comprising a liner for a waterbed, the liner being adapted to be installed in the frame prior to installing the mattress therein, the liner comprising:
a planar bottom panel of a flexible water tight material;
a plurality of upstanding side walls secured to the periphery of said bottom panel thereby forming a container for containing therein a mattress, said side walls being adapted to encircle said mattress; and
each of said upstanding side walls having two equal sections, defined by rigid panels completely enclosed by a waterproof sheet, the two equal sections of each of said side walls being separated by a seam that permits folding of the structure, said water-tight material of all of said side walls being secured to said bottom panel in a fluid tight manner.

### Claim 2

A liner adapted to be interposed between a waterbed mattress and a frame for said mattress, said liner comprising a first sheet of planar rectangular water-tight material that is flexible, four elongated side panels secured one per each side of said first sheet extending in a direction generally normal to the plane of said first sheet, the shorter sides of said side panels abutting against and secured to adjacent side panels: one of the elongated sides of all of said side panels and said first sheet being secured each other in a water-tight relationship, and each of said side panels being comprised of a flexible water tight material totally enclosing a pair of equals, elongated rigid panel members lying in generally the same parallel plane and extending along the longer side of each of said side panels and separated from each other by a seam sealing off one of said panel members from the other, thereby forming a liner having a flexible water-tight bottom panel and upright rigid side panels covered by a flexible material.

### Claim 3

A liner adapted to be interposed between a waterbed mattress and a frame for said mattress which comprises:
a rectangular structure having a planar bottom panel of a flexible water tight material, and four upstanding side walls,
each upstanding side wall secured to the periphery of said bottom panel thereby forming a container for holding a waterbed mattress therein,
each of said upstanding side walls having two equal sections, defined by rigid rectangular panels completely enclosed by a waterproof sheet, the two equal sections of each of said side walls being separated by a seam that permits folding of the structure.

### Claim 4 (depends on 3)

In the liner of claim 3 wherein said flexible watertight material is vinyl.

### Claim 5 (depends on 3)

In the liner of claim 3 wherein said rigid material is pressed board.