Patent US4517691A successfully refreshed from Google Patents.
US4517691A
Expired / Lapsed
US
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Motion damping system for water bed mattresses
Assignee: Advanced Sleep Products
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Filing: 1981-05-01
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Granted: 1985-05-21
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Expires: 2001-05-01
Abstract
Abstract A free floating wave control unit in combination with a water bed mattress and detachably disposed interiorly therein and coextensive of the top panel of the mattress and comprised of a floatable frame carrying thick fiber batting underlying the top panel and free hanging curtains to intercept and damp out wave motion, and there being marginal walls of thick fiber batting adjacent to the side and end panels of the mattress to damp reflective wave motion.
Inventors
- 👤 Raymond M. Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:39
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/088; A47C27/085
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
215 words
In combination, a flotation mattress comprised of an envelope of supple sheet material with a top body supporting panel and a bottom panel joined thereto by vertical side walls when filled with liquid, and a free floating wave motion damping unit detached from and adapted to seek a proper operating position interiorly of the mattress envelope; said floating wave motion damping unit including, a flexible frame of low density material for substantial bouyancy and having side members closely conforming to a plan configuration defined by the side walls of the mattress envelope, a pad of flexible batting carried by the frame and engageable with the top body supporting panel at the interior of said envelope, flexible batting hanging freely from the side members of said flexible frame and juxstaposed to the side walls of the mattress envelope to reduce reflected wave motion, and curtain means of supple sheet material having a weight per volume greater than water and hanging freely from the frame in tube form with opposite ends opening closely to the side walls of the mattress for flow restriction and the entrapment of liquid therein so as to retard wave motion over the bottom of the mattress when depressed by downward displacement of the supporting panel to engage the bottom of the mattress.
Claim 2
Dependent Claim
215 words
In combination, a flotation mattress comprised of an envelope of supple sheet material with a top body supporting panel and a bottom panel joined thereto by vertical side walls when filled with liquid, and a free floating wave motion damping unit detached from and adapted to seek a proper operating position interiorly of the mattress envelope; said floating wave motion damping unit including, a flexible frame of low density material for substantial bouyancy and having side members closely conforming to a plan configuration defined by the side walls of the mattress envelope, a pad of flexible batting carried by the frame and engageable with the top body supporting panel at the interior of said envelope, flexible batting hanging freely from the side members of said flexible frame and juxstaposed to the side walls of the mattress envelope to reduce reflected wave motion, and curtain means of supple sheet material having a weight per volume greater than water and hanging freely from the frame in tube form with opposite ends opening closely to the side walls of the mattress for flow restriction and the entrapment of liquid therein so as to retard wave motion over the bottom of the mattress when depressed by downward displacement of the supporting panel to engage the bottom of the mattress.
Claim 3
Dependent Claim
41 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame is comprised of interconnected shaping members to which the pad of flexible batting and the hanging curtain means are attached.
Claim 4
Dependent Claim
47 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame is comprised of at least one buoyant foamed plastic closed cell member to which the pad of flexible batting and the hanging curtain means are attached.
Claim 5
Dependent Claim
42 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame is comprised of interconnected shaping bar-like members to which the pad of flexible batting and the hanging curtain means are attached.
Claim 6
Dependent Claim
49 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame is comprised of interconnected shaping bar-like members of buoyant foamed plastic closed cell material to which the pad of flexible batting and the hanging curtain means are attached.
Claim 7
Dependent Claim
56 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame is comprised of a plurality of parallel bar-like members and spaced transverse interconnecting members of shaping foamed plastic closed cell material to which the pad of flexible batting and the hanging curtain means are attached.
Claim 8
Dependent Claim
48 words
The combination of a mattress and wave motion damping unit as set forth in any one of claims 2 through 6, and wherein said pad of flexible batting is coextensive with the top body supporting panel and of soft plastic substantially light weight fibers immersed in the liquid.
Claim 9
Dependent Claim
50 words
The combination of a mattress and wave motion damping unit as set forth in any one of claims 1 through 6, wherein the frame is planar and wherein a complementary pad of flexible batting underlies the frame and comprised of soft plastic substantially light weight fibers immersed in the liquid.
Claim 10
Dependent Claim
50 words
The combination of a mattress and wave motion damping unit as set forth in any one of claims 1 through 6, and wherein two complementary pads of flexible batting coextensively overlie and underlie and embrace the frame and are comprised of plastic substantially light weight fibers immersed in the liquid.
Claim 11
Dependent Claim
35 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said pad of flexible batting is soft and of plastic substantially light weight fibers immersed in the liquid.
Claim 12
Dependent Claim
42 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said pad of flexible batting is coextensive with the top body supporting panel and of soft plastic substantially light weight fibers immersed in the liquid.
Claim 13
Dependent Claim
49 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein the said curtain means of tube form is comprised of at least one loosely hanging swag of supple sheet material hanging freely from the frame of the floating wave motion damping unit.
Claim 14
Dependent Claim
64 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame extends between ends of the mattress envelope, and wherein the said curtain means of tube form is comprised of at least one loosely hanging swag of supple material extending between said ends and hanging freely to a substantial depth of the mattress envelope.
Claim 15
Dependent Claim
61 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame is comprised of spaced shaping members to which the pad of flexible batting is attached and from which the curtain means of tube form is suspended freely between said members in the form of at least one loosely hanging swag.
Claim 16
Dependent Claim
69 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame is comprised of spaced shaping members extending between ends of the mattress envelope and to which the pad of flexible batting is attached and from which the curtain means of tube form is suspended freely between said members in the form of at least one loosely hanging swag.
Claim 17
Dependent Claim
71 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said dapming unit frame is comprised of spaced shaping members extending between ends of the mattress envelope and to which the pad of flexible batting is attached and from which the curtain means of tube form is suspended freely between said members in the form of at least one open ended loosely hanging swag.
Claim 18
Dependent Claim
86 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame is comprised of a plurality of parallel bar-like members and spaced transverse interconnecting members of said bouyant material to which the overlying pad of flexible batting is attached and from which the curtain means of tube form is suspended freely in the form of looped loosely hanging swags of supple sheet material suspended from said parallel members to a substantial depth of the mattress envelope.
Claim 19
Dependent Claim
89 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame is comprised of a plurality of parallel bar-like members and spaced transverse interconnecting members of said bouyant material to which the overlying pad of flexible batting is attached and from which the curtain means of tube form is suspended freely in the form of open ended looped and loosely hanging swags of supple sheet material suspended from said parallel members to a substantial depth of the mattress envelope.
Claim 20
Dependent Claim
86 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame is comprised of a plurality of parallel bar-like members and spaced transverse interconnecting members of said bouyant material to which the overlying pad of flexible batting is attached and from which the curtain means of tube form is suspended freely in the form of looped loosely hanging swags of flexible batting material suspended from said parallel members to a substantial depth of the mattress envelope.
Claim 21
Dependent Claim
88 words
The combination of a mattress and wave motion damping unit as set forth in claim 1, wherein said damping unit frame is comprised of a plurality of parallel bar-like members and spaced transverse interconnecting members of said bouyant material to which the overlying pad of flexible batting is attached and from which the curtain means of tube form is suspended freely in the form of open ended looped loosely hanging swags of flexible batting material suspended from said parallel members to a substantial depth of the mattress envelope.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-20 | 1988-11-19 | 1989-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-20 | 1992-11-19 | 1993-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-20 | 1996-11-19 | 1997-05-21 | $7700.00 | Window Closed / Lapsed |