
US Patent No: 5,617,596
Number of patents in Portfolio can not be more than 2000
Tube for a waterbed
Stats
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Apr 8, 1997
Issued date -
May 1, 1996
filing date -
08/641,578
serial no -
Expired
status
Importance
Abstract
A tube for a waterbed includes a generally cylindrical tube body having a top, a bottom, and a pair of side walls extending from the top to the bottom. The tube body defines a longitudinal axis of the tube. First and second tube ends in combination with the tube body form a watertight enclosure. A fill valve is provided through which the watertight enclosure may be at least partially filled with water. Metering walls are disposed in the watertight enclosure generally transverse to the longitudinal axis of the tube, each pair of metering walls defining a tube section therebetween. The metering walls extend across the tube body from one side to the other and are sealed to each side wall. The metering walls have a top portion that is spaced from the top of the tube body to permit the metered flow of water from one tube section to another. They may also have a bottom portion that is spaced from the bottom of the tube body. The ends of the metering walls are connected to the side walls of the tube body with soft seals, so that if the soft seals break water is not released from the watertight enclosure. The metering walls flex in the vicinity of their top openings to relieve pressure and stress on the components of the tube.
First Claim
Related Publications
International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,912,789 Waterbed mattress | 22 | 1989 | |
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| 4,221,013 Fluid flotation sleep system | 23 | 1978 | |
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| 4,241,465 Waveless waterbed mattress | 14 | 1979 | |
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| 5,031,260 Fluid-filled mattress construction | 7 | 1990 | |
| 5,077,848 Wave dampened watermattress with tubes and lumbar support | 9 | 1991 | |