US3846857A - Multi-section variable density mattress - Google Patents

Multi-section variable density mattress Download PDF

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US3846857A
US3846857A US00345605A US34560573A US3846857A US 3846857 A US3846857 A US 3846857A US 00345605 A US00345605 A US 00345605A US 34560573 A US34560573 A US 34560573A US 3846857 A US3846857 A US 3846857A
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mattress
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C Weinstock
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NEUROLOGICAL RES AND DEV GROUP
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/15—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays consisting of two or more layers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/148—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays of different resilience

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  • a multisection mattress includes variable density components to support the head, shoulders, back, hips and heels with varying degrees of pressure on these parts of the body to promote maximum comfort and to minimize the occurrence and severity of decubitus ulcers or bed sores.
  • the mattress is employed in conjunction with and above a base which is additionally padded with foam and the base is constructed in sections so as to be compatible with standard articulated hospital type beds.
  • the base may be one piece or continuous for use upon a conventional home bed.
  • FIG. 1 is an exploded perspective view of a mattress and foundation therefor embodying the invention shown in association with a conventional hospital bed.
  • FIG. 2 is an enlarged longitudinal vertical section through the mattress and foundation taken on line 2-2 of FIG. 1.
  • FIG. 3 is a greatly enlarged fragmentary vertical section through the mattress and foundation taken on the plane of FIG. 2.
  • FIGS. 4 and 5 are diagrammatic perspective views showing a comparison of the invention and the prior art.
  • the numeral designates a sectional variable density mattress inits entirety having a suitable fabric envelope or cover 11.
  • This mattress embodies a head support block or slab 12 of an open cell compressible foamplastic, such as foam polyurethane.
  • the head slab 12 is 36 inches wide by 12 inches long and 6 inches thick. While these dimensions are not extremely critical, they are the most desirable dimensions. However, they may be varied in some cases.
  • the preferred density of the foam employed in the head slab 12 is approximately 1.75-1.85 lbs. per cubic foot.
  • the compressibility of the slab 12 to a thickness of about 4 inches from the relaxed thickness of 6 inches can be expressed in terms of 24-30 lbs. loading on the entire upper surface of the slab.
  • the midsection of the mattress 10 which supports the shoulders and back of the user is composed of two superposed slabs 13 and 14, each of which measures 36 inches wide by 44 inches long in the embodiment shown and each of which is formed of open cell foam polyurethane or equivalent material.
  • the upper slab 13 is preferably 4 inches thick and the lower slab is 2 inches thick.
  • the density of the upper slab is from 2.2-2.4 lbs. per cubic foot, and the density of the lower slab 14 is from 1.75-1.85 lbs. per cubic foot.
  • the compressibility of the upper slab 13 in the same terms specified for the slab 13 is approximately 38-50 lbs. and for the lower slab 14 is approximately 24-30 lbs.
  • the mattress 10 further embodies a foot section or slab 15 of the same foam plastic material measuring 36 inches wide by 24 inches long by 6 inches thick.
  • the particular foam used for the foot slab 15 preferably has a density of from 1.75-1.85 lbs. per cubic foot and a compressibility of 24-30 lbs. in the same terms expressed above for the other sections, namely the load necessary on the entire area of the slab to compress a 6 inch slab approximately 2 inches.
  • the composit mattress 10 contains regions or zones which differ in density and compressibility and each zone is therefore capable of exerting a specifically different pressure or resistance on a particular part of the anatomy of the user.
  • the mattress With the mattress positioned as in FIG. 2 and the head of the user adjacent to the slab 12, the mattress will possess a first supporting capability. It may be seen that if the mattress is reversed head-to-foot, or if it is inverted, a second or new set of resistance values will be provided and this is sometimes beneficial in relieving the monotony to the patient and in changing the degrees of pressure on dif ferent parts of the body, which in turn can help relieve bed sores, fatigue and back ache.
  • a mattress was constructed in which the density of the foam employed in the head slab 12 is approximately 1.6-1.75 lbs. per cubic foot.
  • the compressibility of the slab 12 to a thickness of about 4 inches from the relaxed thickness of 6 inches can be expressed in terms of a 23-29 lb. loading on the entire upper surface of the slab.
  • the slab 12 is 36 inches wide and 18 inches long.
  • the midsection of the mattress 10 which supports the shoulders and back of the user is composed of two superposed slabs 13 and 14, each of which measures 36 inches wide by 33 inches long in the embodiment shown and each of which is formed of open cell foam polyurethane or equivalent material.
  • the upper slab 13 is preferably 4 inches thick and the lower slab is 2 inches thick.
  • the density of the upper slab is from 2.6-2.75 lbs. per cubic foot, and the density of the lower slab 14 is from 1.6-1 .75 lbs. per cubic foot.
  • the compressibility of the upper slab 13 in the same terms specified for the slab 13 is, approximately 45-55 lbs.
  • the head slab 12 may have a range of densities of from 1.4-1 .55 to 2-2.2 lbs. per cubic foot.
  • the slab 12 may have a rangeof compressibility in the same terms as expressed above of Invention Mattress- All Units on Invention Foundation:
  • the foundation foam slabs or pads supplement and add to the net supportive effect of the mattress in such a way as to produce the greatest comfort and beneficial effect for the user or patient.
  • the several sections of the foundation 16 are preferably enclosed in individual covers 'or envelopes 34, 35, 36 and 37, as shown.
  • ExtraFirm Side Reversed 34 39 54 Y 56 34 Head to Foot Medium Firm Side Reversed 34 37- 40 54 24 All units tested without foundation increased pressures by approximately 3 to 5 ,mm. of Hg. Extra Firm Solid Mattress- One Side 31 46 56 65 Repositioning and turning mattress reading remains the same. 1 Medium Firm Solid Mattress- One Side v 47 48 5 3 35 Repositioning and turning mattress reading remains the same. Regular Hospital Mattress- One Side 43 52 58 68 35 Repositioning and turning mattressreading remains the same.
  • the range of the density 35 The figures in the above chart are the results of a test of the upper slab 13 if from 2.2-2.4 to 2.8-2.9 lbs. per cubic foot.
  • the range of compressibility for slab 13 is from 30-60 lbs.
  • a foundation or base 16 to be used in conjunction with the mattress 10.
  • This base 16 when used in conjunction with a hospital bed 17 such as the well- 5 known Joerns hospitalbed, is formed in sections which correspond in length to the articulated sections 18, 19 and 20 of the bed 17 and to the intermediate fixed section 21. correspondingly, the foundation 16 has sections 22, 23, 24'and 25, as shown. These sections have the same width as the mattress 10 and the same overall length, the individual foundation sections being formed lengthwise to fit the several sections of the hospital bed.
  • Each foundation section 22 through 25 includes a l and a compressibility of 20-30 lbs. on the basis described for the mattress components.
  • the foundation padding is somewhat softer and more readily compressible than the softest sections of the mattress proper.
  • the composite assembly which represents the total invention gives a different effect than would be achieved if the mattress alone were. uscqwitncu .Lhe..f9t1&12!i.%,9if were son or'body of sufficient adult size to span the mattress.
  • the figures in the comparison chart demonstrate that the mattress, when utilized properly with the foundation 16, exerts the minimum unit pressures on the various parts of the anatomy and these pressures are signifi-v cantly lower than the corresponding pressures exerted by the conventional and hospital mattresses.
  • the test results also show that the parts of the anatomy requiring the greatest degree of support, namely the back and hips, receive this support with the invention and the 'parts'requiring lesser supporting pressure, namely the head and heels, are properly accommodated.
  • FIG. 4 aprior art solid-mattress such as a regular hospital mattress is illustrated and it will be observed how the body of the user depresses the prior art mattress unevenly due to the fact that the mattress is unable to compensate for the different weight regions of the body.
  • FIG. 5 shows the invention with its different density and compressibility zones enabling the mattress and foundation assembly to support the body without extreme deformation, the assembly automatically exerting the necessary unit pressures on the different regions of the body with the necessary differential to allow even support along the full length of the body and minimum mattress compression or deformation.
  • a mattress made of foam having three distinct sections, said distinct sections being integral and coextensive with each other, said foam material of the first zone having a first density and compressibility factor at 4 inches in the order of 22 to 30 lbs. per cubic foot, said second zone being adjacent to said first zone and having a second density and second compressibility factor, said second zone having a first and second portion, said first portion having a compressibility factor at4inches in the order of 37 to 60 lbs. per cubic foot, and said third zone adjacent to said second zone and having a third density and compressibility factor at 4 inches i t 1 the order of 2 2 to 30 lbs. per cubic foot, and said second portion of said second zone having a compressibility factor at 4 inches in the order of 22 to 30 lbs. per cubic foot.
  • a mattress made of foam having three distinct sections, said distinct sections being integral and coextensive with each other, said foam material of the first zone having a first density and compressibility factor at 4 inches in the order of 23 to 30 lbs. per cubic foot, said second zone being adjacent to said first zone and having a second density and second compressibility factor, said second zone having a first and second portion, said first portion having a compressibility factor at 4 inches in the order of 38 to 55 lbs. per cubic foot, and said third zone adjacent to said second zone and having a third density and compressibility factor at 4 inches in the order of 24 to 30 lbs. per cubic foot, and said second portion of said second zone having a compressibility factor at 4 inches in the order of 23 to 30 lbs. per cubic foot.
  • a mattress made of foam having three distinct sec tions, said distinct sections being integral and coextensive with each other, said foam material of the first zone having a first density and compressibility factor at 4 inches in the order of 23 to 29 lbs. per cubic foot, said second zone being adjacent to said first zone and having a second density and second compressibility factor, said second zone having a first and second portion said first portion having a compressibility factor at 4 inches in the order of 45 to 55 lbs. per cubic foot, and said third zone adjacent to said second zone and having a third density and compressibility factor at 4 inches in the order of 23 to 29 lbs. per cubic foot, said second portion of said second zone having a compressibility factor at 4 in the order of 23 to 29 lbs. per cubic foot, and said material of first zone and third zone having identical density and compressibility factors different from that of the second zone in the order of L6 to 1.75

Abstract

A mattress possessing particular utility in hospitals and nursing homes reduces the incidence and severity of bed sores, improves muscle tone and reduces back ache. The mattress features plural sections of foam whose densities and degrees of compressibility vary, so that regulated pressures will be applied to different sections of the body for maximum comfort. The mattress may be turned to change the pressure points on the body periodically as the need arises. The mattress is employed in conjunction with a foam padded base or underlay having a relatively rigid component.

Description

United States Patent 1191 Weinstock 1 Nov.'12, 1974 1 MULTI-SECTION VARIABLE DENSITY MATTRESS lnventor: Clifford Weinstock, Pompano Beach, Fla.
Neurological Research and Development Group Incorporated, Scranton, Pa.
Filed: Mar. 28, 1973 Appl. No.: 345,605
Related U.S. Application Data Continuation-in-part of Ser. No. 233,687, March 10, 1972, abandonedv [73] Assignee:
U.S. Cl. 5/345 R, 5/91, 5/355, 5/D1G; 2
Int. Cl A47c 27/08, A470 27/22 Field of Search 5/91, 345, 355, DIG. 2; 297/457, DlG. l, DIG. 2
References Cited UNITED STATESPATENTS 1/1969 Maddax et a1. 5/91 mxnks masgrt aaaaas A? 3.447.170 6/1969 Spitz 5/91 3,521,311 3/1968 Cohen..v 5/D1G. 2 3,604,025 9/1971 Mims 5/345 FOREIGN PATENTS OR APPLICATIONS 1,553,658 1/1969 France 5/345 R Primary Examiner-Casmir A. Nunberg [57] ABSTRACT 5 Claims, 5 Drawing Figures MULTI-SECTION VARIABLE DENSITY MATTRESS I This application is a continuation inpart of application Ser. No. 233,687 filed on the 10th day of March, 1972, now abandoned.
BACKGROUND OF THE INVENTION A definite need exists for an improved bed mattress particularly in hospitals and nursing homes where some patients are confined to the bed for long periods of time. Also in the home, certain individuals with chronic back complaints experience the need for a mattress which would tend to ease such complaints.
The prior art contains quite a number of teachings pertaining to sectional mattresses and mattresses having variable density compoents but none of these prior art structures has proven to be completely satisfactory in terms of satisfying the above needs of bedridden hospital and nursing home patients, in particular.
Accordingly, the main objective of the invention is to provide a mattress which is constructed to meet the needs of the art more completely than any known prior art proposal. In accordance with the invention, a multisection mattress includes variable density components to support the head, shoulders, back, hips and heels with varying degrees of pressure on these parts of the body to promote maximum comfort and to minimize the occurrence and severity of decubitus ulcers or bed sores. In furtherance of this objective, the mattress is employed in conjunction with and above a base which is additionally padded with foam and the base is constructed in sections so as to be compatible with standard articulated hospital type beds. The base may be one piece or continuous for use upon a conventional home bed.
Other features and advantages of the invention will become apparent during the course of the following detailed description, and among these features are the economy of construction of the mattress and base, comparable to the cost of a good-quality hospital mattress and the durability of the composite mattress and foundation which will last many years beyond the life of a conventional high quality hospital mattress.
BRIEF DESCRIPTION OF DRAWING FIGURES FIG. 1 is an exploded perspective view of a mattress and foundation therefor embodying the invention shown in association with a conventional hospital bed.
FIG. 2 is an enlarged longitudinal vertical section through the mattress and foundation taken on line 2-2 of FIG. 1.
FIG. 3 is a greatly enlarged fragmentary vertical section through the mattress and foundation taken on the plane of FIG. 2.
FIGS. 4 and 5 are diagrammatic perspective views showing a comparison of the invention and the prior art.
DETAILED DESCRIPTION Referring to the drawings in detail wherein like nu-. merals designate like parts, the numeral designates a sectional variable density mattress inits entirety having a suitable fabric envelope or cover 11. This mattress embodies a head support block or slab 12 of an open cell compressible foamplastic, such as foam polyurethane. In a typical embodiment, the head slab 12 is 36 inches wide by 12 inches long and 6 inches thick. While these dimensions are not extremely critical, they are the most desirable dimensions. However, they may be varied in some cases. The preferred density of the foam employed in the head slab 12 is approximately 1.75-1.85 lbs. per cubic foot. The compressibility of the slab 12 to a thickness of about 4 inches from the relaxed thickness of 6 inches can be expressed in terms of 24-30 lbs. loading on the entire upper surface of the slab.
The midsection of the mattress 10 which supports the shoulders and back of the user is composed of two superposed slabs 13 and 14, each of which measures 36 inches wide by 44 inches long in the embodiment shown and each of which is formed of open cell foam polyurethane or equivalent material. The upper slab 13 is preferably 4 inches thick and the lower slab is 2 inches thick. The density of the upper slab is from 2.2-2.4 lbs. per cubic foot, and the density of the lower slab 14 is from 1.75-1.85 lbs. per cubic foot. The compressibility of the upper slab 13 in the same terms specified for the slab 13 is approximately 38-50 lbs. and for the lower slab 14 is approximately 24-30 lbs.
The mattress 10 further embodies a foot section or slab 15 of the same foam plastic material measuring 36 inches wide by 24 inches long by 6 inches thick. The particular foam used for the foot slab 15 preferably has a density of from 1.75-1.85 lbs. per cubic foot and a compressibility of 24-30 lbs. in the same terms expressed above for the other sections, namely the load necessary on the entire area of the slab to compress a 6 inch slab approximately 2 inches.
It may be seen that the composit mattress 10 contains regions or zones which differ in density and compressibility and each zone is therefore capable of exerting a specifically different pressure or resistance on a particular part of the anatomy of the user. With the mattress positioned as in FIG. 2 and the head of the user adjacent to the slab 12, the mattress will possess a first supporting capability. It may be seen that if the mattress is reversed head-to-foot, or if it is inverted, a second or new set of resistance values will be provided and this is sometimes beneficial in relieving the monotony to the patient and in changing the degrees of pressure on dif ferent parts of the body, which in turn can help relieve bed sores, fatigue and back ache. The mattress as constructed, therefore, is very versatile.
In an alternate embodiment of the invention, a mattress was constructed in which the density of the foam employed in the head slab 12 is approximately 1.6-1.75 lbs. per cubic foot. The compressibility of the slab 12 to a thickness of about 4 inches from the relaxed thickness of 6 inches can be expressed in terms of a 23-29 lb. loading on the entire upper surface of the slab. The slab 12 is 36 inches wide and 18 inches long.
The midsection of the mattress 10 which supports the shoulders and back of the user is composed of two superposed slabs 13 and 14, each of which measures 36 inches wide by 33 inches long in the embodiment shown and each of which is formed of open cell foam polyurethane or equivalent material. The upper slab 13 is preferably 4 inches thick and the lower slab is 2 inches thick. The density of the upper slab is from 2.6-2.75 lbs. per cubic foot, and the density of the lower slab 14 is from 1.6-1 .75 lbs. per cubic foot. The compressibility of the upper slab 13 in the same terms specified for the slab 13 is, approximately 45-55 lbs.
6 inch slab approximately 2 inches.
It had been further determined that the head slab 12 may have a range of densities of from 1.4-1 .55 to 2-2.2 lbs. per cubic foot. The slab 12 may have a rangeof compressibility in the same terms as expressed above of Invention Mattress- All Units on Invention Foundation:
used with a different type of foundation, such as a felt pad or some sort of box spring. In the total assembly, the foundation foam slabs or pads supplement and add to the net supportive effect of the mattress in such a way as to produce the greatest comfort and beneficial effect for the user or patient. The several sections of the foundation 16 are preferably enclosed in individual covers 'or envelopes 34, 35, 36 and 37, as shown.
To further emphasize the mertis of the invention in comparison to conventional extra firm solid mattresses. medium firm and regular hospital mattresses, a comparison chart is shown below. In this chart. the pressures exerted on different parts of the body are indisateqjn mil ime srw s x,
Head Shoulders Lumber Hips Heel Extra Firm Side 37 44 50 58 32 Medium Firm Side 31 36- 42 5] 26 ExtraFirm Side Reversed 34 39 54 Y 56 34 Head to Foot Medium Firm Side Reversed 34 37- 40 54 24 All units tested without foundation increased pressures by approximately 3 to 5 ,mm. of Hg. Extra Firm Solid Mattress- One Side 31 46 56 65 Repositioning and turning mattress reading remains the same. 1 Medium Firm Solid Mattress- One Side v 47 48 5 3 35 Repositioning and turning mattress reading remains the same. Regular Hospital Mattress- One Side 43 52 58 68 35 Repositioning and turning mattressreading remains the same.
from 22-38 lbs per cubic foot. The range of the density 35 The figures in the above chart are the results of a test of the upper slab 13 if from 2.2-2.4 to 2.8-2.9 lbs. per cubic foot. The range of compressibility for slab 13 is from 30-60 lbs.
The range of density and compressibility of slabs 14 using as a subject a 6 foot tall, 185 pound person. Quite naturally, the test results will differ for each person and in this respect his to be understood that the. invention is capable of automatically compensating to produce and 15 is the same-as the figure given for slab 12 above. the most advantageous supportive pressure on any per- An important feature of the invention resides in the provision .of a foundation or base 16 to be used in conjunction with the mattress 10. This base 16, when used in conjunction with a hospital bed 17 such as the well- 5 known Joerns hospitalbed, is formed in sections which correspond in length to the articulated sections 18, 19 and 20 of the bed 17 and to the intermediate fixed section 21. correspondingly, the foundation 16 has sections 22, 23, 24'and 25, as shown. These sections have the same width as the mattress 10 and the same overall length, the individual foundation sections being formed lengthwise to fit the several sections of the hospital bed.
Each foundation section 22 through 25 includes a l and a compressibility of 20-30 lbs. on the basis described for the mattress components. Thus, it may be seen that the foundation padding is somewhat softer and more readily compressible than the softest sections of the mattress proper. However, when the mattress is placed upon the foundation 16 for use, the composite assembly which represents the total invention gives a different effect than would be achieved if the mattress alone were. uscqwitncu .Lhe..f9t1&12!i.%,9if were son or'body of sufficient adult size to span the mattress.
The figures in the comparison chart demonstrate that the mattress, when utilized properly with the foundation 16, exerts the minimum unit pressures on the various parts of the anatomy and these pressures are signifi-v cantly lower than the corresponding pressures exerted by the conventional and hospital mattresses. The test results also show that the parts of the anatomy requiring the greatest degree of support, namely the back and hips, receive this support with the invention and the 'parts'requiring lesser supporting pressure, namely the head and heels, are properly accommodated.
With reference to FIG. 4, aprior art solid-mattress such as a regular hospital mattress is illustrated and it will be observed how the body of the user depresses the prior art mattress unevenly due to the fact that the mattress is unable to compensate for the different weight regions of the body. FIG. 5, on the other hand, shows the invention with its different density and compressibility zones enabling the mattress and foundation assembly to support the body without extreme deformation, the assembly automatically exerting the necessary unit pressures on the different regions of the body with the necessary differential to allow even support along the full length of the body and minimum mattress compression or deformation.
It is to be understood that the form of the invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size and arrangement of parts may be resorted to, without departing from the spirit of the invention or scope of the subjoined claims.
I claim:
1. A mattress made of foam having three distinct sections, said distinct sections being integral and coextensive with each other, said foam material of the first zone having a first density and compressibility factor at 4 inches in the order of 22 to 30 lbs. per cubic foot, said second zone being adjacent to said first zone and having a second density and second compressibility factor, said second zone having a first and second portion, said first portion having a compressibility factor at4inches in the order of 37 to 60 lbs. per cubic foot, and said third zone adjacent to said second zone and having a third density and compressibility factor at 4 inches i t 1 the order of 2 2 to 30 lbs. per cubic foot, and said second portion of said second zone having a compressibility factor at 4 inches in the order of 22 to 30 lbs. per cubic foot.
2. The mattress of claim 1, in which the material of first zone and third zone have identical density and compressibility factors differentfro m that of the 5&
ond zone in the order of 1.4-2.2 lbs. per cubic foot said density of said first portion of said second zone being in the order of 185-29 lbs. per cubic foot, whereby the various densities and compressibility factors of said foam cooperate to form a mattress having therapeutic support qualities to the users thereof.
3. A mattress made of foam having three distinct sections, said distinct sections being integral and coextensive with each other, said foam material of the first zone having a first density and compressibility factor at 4 inches in the order of 23 to 30 lbs. per cubic foot, said second zone being adjacent to said first zone and having a second density and second compressibility factor, said second zone having a first and second portion, said first portion having a compressibility factor at 4 inches in the order of 38 to 55 lbs. per cubic foot, and said third zone adjacent to said second zone and having a third density and compressibility factor at 4 inches in the order of 24 to 30 lbs. per cubic foot, and said second portion of said second zone having a compressibility factor at 4 inches in the order of 23 to 30 lbs. per cubic foot.
4. The mattress of claim 3, in which the material of first zone and third zone have identical density and compressibility factors different from that of the second zone in the order of 1.6-1.85 lbs. per cubic foot said density of said first portion of said second zone being in the order of 22-275 lbs. per cubic foot, whereby the various densities and compressibility factors of said foam cooperate to form a mattress having therapeutic support qualities to the users thereof.
5. A mattress made of foam having three distinct sec tions, said distinct sections being integral and coextensive with each other, said foam material of the first zone having a first density and compressibility factor at 4 inches in the order of 23 to 29 lbs. per cubic foot, said second zone being adjacent to said first zone and having a second density and second compressibility factor, said second zone having a first and second portion said first portion having a compressibility factor at 4 inches in the order of 45 to 55 lbs. per cubic foot, and said third zone adjacent to said second zone and having a third density and compressibility factor at 4 inches in the order of 23 to 29 lbs. per cubic foot, said second portion of said second zone having a compressibility factor at 4 in the order of 23 to 29 lbs. per cubic foot, and said material of first zone and third zone having identical density and compressibility factors different from that of the second zone in the order of L6 to 1.75
lbs. per cubic foot, said density of said first portion of said second zone being in the order of 2.6 to 2.75 lbs. per cubic foot, whereby the various densities and compressibility factors of said foam cooperate to form a mattress having thereapeutic support qualities to the users thereof.

Claims (5)

1. A mattress made of foam having three distinct sections, said distinct sections being integral and coextensive with each other, said foam material of the first zone having a first density and compressibility factor at 4 inches in the order of 22 to 30 lbs. per cubic foot, said second zone being adjacent to said first zone and having a second density and second compressibility factor, said second zone having a first and second portion, said first portion having a compressibility factor at 4 inches in the order of 37 to 60 lbs. per cubic foot, and said third zone adjacent to said second zone and having a third density and compressibility factor at 4 inches in the order of 22 to 30 lbs. per cubic foot, and said second portion of said second zone having a compressibility factor at 4 inches in the order of 22 to 30 lbs. per cubic foot.
2. The mattress of claim 1, in which the material of first zone and third zone have identical density and compressibility factors different from that of the second zone in the order of 1.4-2.2 lbs. per cubic foot said density of said first portion of said second zone being in the order of 1.85-2.9 lbs. per cubic foot, whereby the various densities and compressibility factors of said foam cooperate to form a mattress having therapeutic supPort qualities to the users thereof.
3. A mattress made of foam having three distinct sections, said distinct sections being integral and coextensive with each other, said foam material of the first zone having a first density and compressibility factor at 4 inches in the order of 23 to 30 lbs. per cubic foot, said second zone being adjacent to said first zone and having a second density and second compressibility factor, said second zone having a first and second portion, said first portion having a compressibility factor at 4 inches in the order of 38 to 55 lbs. per cubic foot, and said third zone adjacent to said second zone and having a third density and compressibility factor at 4 inches in the order of 24 to 30 lbs. per cubic foot, and said second portion of said second zone having a compressibility factor at 4 inches in the order of 23 to 30 lbs. per cubic foot.
4. The mattress of claim 3, in which the material of first zone and third zone have identical density and compressibility factors different from that of the second zone in the order of 1.6-1.85 lbs. per cubic foot said density of said first portion of said second zone being in the order of 2.2-2.75 lbs. per cubic foot, whereby the various densities and compressibility factors of said foam cooperate to form a mattress having therapeutic support qualities to the users thereof.
5. A mattress made of foam having three distinct sections, said distinct sections being integral and coextensive with each other, said foam material of the first zone having a first density and compressibility factor at 4 inches in the order of 23 to 29 lbs. per cubic foot, said second zone being adjacent to said first zone and having a second density and second compressibility factor, said second zone having a first and second portion said first portion having a compressibility factor at 4 inches in the order of 45 to 55 lbs. per cubic foot, and said third zone adjacent to said second zone and having a third density and compressibility factor at 4 inches in the order of 23 to 29 lbs. per cubic foot, said second portion of said second zone having a compressibility factor at 4 in the order of 23 to 29 lbs. per cubic foot, and said material of first zone and third zone having identical density and compressibility factors different from that of the second zone in the order of 1.6 to 1.75 lbs. per cubic foot, said density of said first portion of said second zone being in the order of 2.6 to 2.75 lbs. per cubic foot, whereby the various densities and compressibility factors of said foam cooperate to form a mattress having thereapeutic support qualities to the users thereof.
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Cited By (116)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939508A (en) * 1975-01-08 1976-02-24 Thomasville Products, Inc. Mattress and cushioning construction
US4053957A (en) * 1976-06-01 1977-10-18 Regan John J Multi-layered mattress
US4083069A (en) * 1976-12-22 1978-04-11 Manuel Glickman Reversible dual purpose box spring
US4143435A (en) * 1977-08-03 1979-03-13 Isamu Masuda Mattress having a corrugated plate
US4316298A (en) * 1980-03-12 1982-02-23 Thonet Industries, Inc. Composite mattress system
US4336621A (en) * 1980-02-25 1982-06-29 Schwartz Donald R Disposable orthopedic overmattress for articulated beds
US4356578A (en) * 1980-09-15 1982-11-02 Clark Philip H Obstetrics bed
US4364134A (en) * 1979-09-24 1982-12-21 Marks Robert J Bed construction
EP0109840A2 (en) * 1982-11-19 1984-05-30 Courtaulds Plc Mattress for supporting the human body
US4522447A (en) * 1980-02-02 1985-06-11 Snyder William F Foam seat and back cushions
US4571763A (en) * 1984-06-29 1986-02-25 Tachikawa Spring Co., Ltd. Cushion member for a vehicle seat
WO1987006442A1 (en) * 1986-05-01 1987-11-05 Comfortex, Inc. Decubitus ulcer mattress
US4750714A (en) * 1985-11-29 1988-06-14 Aprica Kassai Kabushikikaisha Cushion construction for child's safety seat for use in automobiles
USRE32734E (en) * 1982-12-06 1988-08-23 Reversible mattress
US4819288A (en) * 1986-08-06 1989-04-11 National Research Development Corporation Cushions
EP0378109A1 (en) * 1989-01-10 1990-07-18 Werner Lück Mattress using padded parts of soft foam
US5022111A (en) * 1990-06-29 1991-06-11 E. R. Carpenter Company, Inc. Pressure reduction mattress
US5025519A (en) * 1986-10-22 1991-06-25 Span-America Medical Systems, Inc. Multi-section mattress overlay for systematized pressure dispersion
US5031261A (en) * 1990-03-15 1991-07-16 E. R. Carpenter Company, Inc. Mattress overlay for avoidance of decubitus ulcers
US5048167A (en) * 1989-03-13 1991-09-17 Heffley James R Method for restoring used mattresses
EP0465810A1 (en) * 1990-07-11 1992-01-15 Werner Lück Mattress
US5101527A (en) * 1990-10-29 1992-04-07 Convo Corporation Modular body support system
US5134735A (en) * 1990-11-05 1992-08-04 E. R. Carpenter Company, Inc. Mattress cushion with multiple zones
US5179742A (en) * 1991-11-01 1993-01-19 Stryker Corporation Pressure reduction mattress
WO1993003654A1 (en) * 1991-08-20 1993-03-04 Jack Schwartz Multilayer mattress
US5231717A (en) * 1989-08-23 1993-08-03 Leggett & Platt, Incorporated Bedding system
US5282286A (en) * 1992-11-16 1994-02-01 Cascade Designs, Inc. Sealed composite cushion having multiple indentation force deflection zones
US5369824A (en) * 1993-10-05 1994-12-06 Powell; Bettye J. Maternity mattress
US5474362A (en) * 1991-06-26 1995-12-12 Albecker, Iii; Walter J. Cushions having internal support member
US5611414A (en) * 1995-04-11 1997-03-18 Walker; Jeffrey R. Self-contained folding portable bed
US5671492A (en) * 1995-03-14 1997-09-30 Simon; Keith Douglas Contoured asymmetrical mattress
US5815865A (en) * 1995-11-30 1998-10-06 Sleep Options, Inc. Mattress structure
US6008598A (en) * 1998-04-22 1999-12-28 Patmark Company, Inc. Hand-held controller for bed and mattress assembly
US6115861A (en) * 1997-10-09 2000-09-12 Patmark Company, Inc. Mattress structure
US6202239B1 (en) * 1998-02-25 2001-03-20 Select Comfort Corp. Multi-zone support
US6223371B1 (en) 1999-04-15 2001-05-01 Steven J. Antinori Mattress and method of manufacture
US6223369B1 (en) 1997-11-14 2001-05-01 Span-America Medical Systems, Inc. Patient support surfaces
US6230351B1 (en) * 1997-03-25 2001-05-15 Robert C. Kohnle Seat cushion for minimizing decubitus ulcers
US6249924B1 (en) * 1997-02-14 2001-06-26 Earl Sanderson Kluft Anti-roll off mattress construction
US6256819B1 (en) 1997-01-22 2001-07-10 Span-America Medical Systems, Inc. Multi-section positioning wheelchair cushion
US6295674B1 (en) * 2000-01-21 2001-10-02 Sleeper Solutions Foldable sleeper sofa mattress and method of manufacturing
US6311351B1 (en) * 1999-07-23 2001-11-06 Comfortex Health Care Surfaces Pressure reducing mattress with localized pressure point relief
US6442780B1 (en) * 2000-03-09 2002-09-03 Kci Licensing, Inc. Mattress with semi-independent pressure relieving pillars
US6516483B1 (en) * 2000-03-28 2003-02-11 The Or Group, Inc. Patient support surface
US6532613B2 (en) * 2001-06-07 2003-03-18 Berry, Iv Russell M. Three dimensional star shaped pliable chair
US6618883B2 (en) 2002-01-30 2003-09-16 Clair A. Angland Mattress support device for a sofa sleeper
US6637058B1 (en) * 2002-04-23 2003-10-28 Steve Lamb Surgical prone pillow structure
US6662393B2 (en) 2002-03-19 2003-12-16 Dennis Boyd Composite mattress
EP1380236A2 (en) * 2002-07-11 2004-01-14 Recticel Mattress and mattress cover
US20040133875A1 (en) * 2002-09-05 2004-07-08 Bea Systems, Inc. System and method for software module architecture language and compliance checking
US20050060809A1 (en) * 2003-09-18 2005-03-24 Rogers John E. Methods and devices for reducing stress concentration when supporting a body
US20050210595A1 (en) * 2004-03-23 2005-09-29 Di Stasio Anthony A Mattress having reticulated viscoelastic foam
US20060058587A1 (en) * 2004-09-10 2006-03-16 Heimbrock Richard H Wireless control system for a patient-support apparatus
US7036173B2 (en) 2002-10-17 2006-05-02 Dreamwell,Ltd. Channel-cut cushion supports
US20060260054A1 (en) * 2004-12-23 2006-11-23 Lubbers David P Wireless control system for a patient support apparatus
US20060272098A1 (en) * 2005-06-03 2006-12-07 Hochschild Arthur A Composite foam mattress assembly
US20070044245A1 (en) * 2005-09-01 2007-03-01 The Spring Air Company Mattress with triple zone topper
US20070107133A1 (en) * 2003-07-25 2007-05-17 Meinhard Schwaiger Air-permeable mattress providing great lying comfort
WO2007129981A1 (en) * 2006-05-08 2007-11-15 Hoegberg Magnus Foam mattress with seat
US20080052834A1 (en) * 2006-08-30 2008-03-06 Hill Darrell G Reusable surgical perioperative positioning system
US20080157583A1 (en) * 2006-12-29 2008-07-03 Boren Kelly L Aircraft passenger seat cushions
US20090089933A1 (en) * 2007-10-09 2009-04-09 Sealy Technology, Llc Pressure dispersion support systems
US7640611B1 (en) 2005-01-25 2010-01-05 Kluft Earl S Mattress design
US7681270B2 (en) * 2007-05-21 2010-03-23 Anodyne Medical Device, Inc. Mattress with features for improved support and comfort
US20100223732A1 (en) * 2009-03-06 2010-09-09 Noel Group Llc Unitary composite/hybrid cushioning structure(s) and profile(s) comprised of a thermoplastic foam(s) and a thermoset material(s)
US20100223734A1 (en) * 2009-03-04 2010-09-09 Zinus Inc. Symmetrical pressure relief foam mattress
CN101861111A (en) * 2007-11-15 2010-10-13 泰斯帕有限公司 Be used to make the system of the pressure or the impact bearing body that are intended to realize orientable buffering
US20100325806A1 (en) * 2007-10-09 2010-12-30 Sealy Technology, Llc Pressure dispersion support systems
US20110012405A1 (en) * 2005-11-02 2011-01-20 Conforti Carl J Seat pad
US20110072587A1 (en) * 2009-09-29 2011-03-31 Nomaco Inc. Foam cushion having reduced cross-section area foam profiles forming hollow portion(s) for deformation
US20110197363A1 (en) * 2010-02-12 2011-08-18 Noel Group Llc Composite cushioning structure(s) with spatially variable cushioning properties and related materials, cushioning assemblies, and methods for producing same
US8011047B2 (en) * 2006-09-19 2011-09-06 Ronen Mandelzis Spinal relaxation apparatus
WO2012028763A1 (en) * 2010-09-01 2012-03-08 Maskun Kalustetalo Oy Mattress structure, mattress system and method for using a mattress
US20120124753A1 (en) * 2010-11-19 2012-05-24 Zinus Inc. Zoned foam mattress with alternating lateral regions of HD foam and memory foam
CN102836039A (en) * 2012-10-09 2012-12-26 迈柯唯医疗设备(苏州)有限公司 Waterproof breathable anti-bedsore memory mattress
US8397327B2 (en) 2010-08-31 2013-03-19 Span-America Medical Systems, Inc. Bed insert
US20130081208A1 (en) * 2011-09-30 2013-04-04 Offloading Technologies Inc. Methods and systems for a dynamic support mattress to treat and reduce the incidence of pressure ulcers
USD688069S1 (en) 2012-09-28 2013-08-20 Noel Group Llc Mattress bed cushion
USD688492S1 (en) 2010-03-03 2013-08-27 Noel Group Llc Mattress bed cushion
USD690536S1 (en) 2012-07-26 2013-10-01 Nomaco Inc. Motion isolation insulator pad
USD691401S1 (en) 2009-03-06 2013-10-15 Noel Group, Llc Mattress bed cushion
USD691400S1 (en) 2012-02-10 2013-10-15 Nomaco Inc. Stackable base for mattress assembly
USD692692S1 (en) 2011-04-29 2013-11-05 Noel Group Llc Mattress bed cushion
USD692694S1 (en) 2012-09-28 2013-11-05 Noel Group Llc Mattress bed cushion
USD692693S1 (en) 2012-04-27 2013-11-05 Noel Group Llc Mattress bed cushion
USD693146S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD693148S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693145S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693144S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693149S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD693147S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD694041S1 (en) 2012-09-28 2013-11-26 Noel Group Llc Mattress bed cushion
US8590075B1 (en) 2009-06-09 2013-11-26 Ibrahim H. Amjad Mattress assembly for newborn infants
USD694552S1 (en) 2012-04-27 2013-12-03 Noel Group Llc Mattress bed cushion
USD694553S1 (en) 2010-03-03 2013-12-03 Noel Group Llc Mattress bed cushion
USD697337S1 (en) 2012-07-03 2014-01-14 Nomaco, Inc. Stackable base for mattress assembly
US20140059780A1 (en) * 2009-12-17 2014-03-06 Stryker Corporation Patient support
USD701713S1 (en) 2012-11-09 2014-04-01 Noel Group, Llc Mattress bed cushion
US20140115790A1 (en) * 1998-05-06 2014-05-01 Hill-Rom Services, Inc. Cover system for a patient support surface
USD704962S1 (en) 2013-09-09 2014-05-20 Noel Group Llc Mattress bed cushion
USD707467S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD707468S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD709301S1 (en) 2012-11-09 2014-07-22 Noel Group Llc Mattress bed cushion
US8832889B2 (en) * 2011-03-14 2014-09-16 Fabienne Sportis Four-sided reversible bedding element
EP2798980A1 (en) * 2013-05-02 2014-11-05 Formafoam B.V. Mattress
US9516952B2 (en) * 2014-06-21 2016-12-13 L&P Property Management Company Mattress bucket retention mechanism
US20170156508A1 (en) * 2015-12-03 2017-06-08 Polar Generation Llc Simulated zero "g" mattress and cover
US20170325596A1 (en) * 2016-05-13 2017-11-16 Perfect Pressure Inc. Foam mattress having an adjustable mattress core for adjusting and customizing its firmness, assembling method and kit thereof
US9854922B1 (en) 2017-01-18 2018-01-02 Pranasleep, LLC Ergonomic mattress having support sections with internal variations
US20180035819A1 (en) * 2016-08-05 2018-02-08 PT Massindo International Mattress with adjustable hardness and comfort levels
US20180168361A1 (en) * 2016-12-15 2018-06-21 Stryker Corporation Person support
US10045633B2 (en) 2013-04-26 2018-08-14 Noel Group Llc Cushioning assemblies with thermoplastic elements encapsulated in thermoset providing customizable support and airflow, and related methods
EP3047760B1 (en) 2015-01-21 2019-01-09 Sven Oliver Maier Method for producing a body-supporting element
US20190298078A1 (en) * 2018-04-03 2019-10-03 John William Vester, III Custom Foam Mattress Design System
US10820718B1 (en) * 2020-07-10 2020-11-03 Sonu Sleep Corporation Bed with negative space
US11906881B2 (en) 2020-12-03 2024-02-20 Direct Supply, Inc. Medical mattress failure detection device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419920A (en) * 1966-10-17 1969-01-07 Forrest E. Maddux Jr. Mattress
FR1553658A (en) * 1965-05-12 1969-01-17
US3447170A (en) * 1967-09-05 1969-06-03 Bedline Inc Articulating platform structure for supporting mattress on contour beds
US3521311A (en) * 1968-03-01 1970-07-21 Paul P Cohen Mattress
US3604025A (en) * 1969-04-18 1971-09-14 Sears Roebuck & Co Foam bedding

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1553658A (en) * 1965-05-12 1969-01-17
US3419920A (en) * 1966-10-17 1969-01-07 Forrest E. Maddux Jr. Mattress
US3447170A (en) * 1967-09-05 1969-06-03 Bedline Inc Articulating platform structure for supporting mattress on contour beds
US3521311A (en) * 1968-03-01 1970-07-21 Paul P Cohen Mattress
US3604025A (en) * 1969-04-18 1971-09-14 Sears Roebuck & Co Foam bedding

Cited By (161)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939508A (en) * 1975-01-08 1976-02-24 Thomasville Products, Inc. Mattress and cushioning construction
US4053957A (en) * 1976-06-01 1977-10-18 Regan John J Multi-layered mattress
US4083069A (en) * 1976-12-22 1978-04-11 Manuel Glickman Reversible dual purpose box spring
US4143435A (en) * 1977-08-03 1979-03-13 Isamu Masuda Mattress having a corrugated plate
US4364134A (en) * 1979-09-24 1982-12-21 Marks Robert J Bed construction
US4522447A (en) * 1980-02-02 1985-06-11 Snyder William F Foam seat and back cushions
US4336621A (en) * 1980-02-25 1982-06-29 Schwartz Donald R Disposable orthopedic overmattress for articulated beds
US4316298A (en) * 1980-03-12 1982-02-23 Thonet Industries, Inc. Composite mattress system
US4356578A (en) * 1980-09-15 1982-11-02 Clark Philip H Obstetrics bed
EP0109840A3 (en) * 1982-11-19 1985-08-28 Courtaulds Plc Mattress for supporting the human body
EP0109840A2 (en) * 1982-11-19 1984-05-30 Courtaulds Plc Mattress for supporting the human body
USRE32734E (en) * 1982-12-06 1988-08-23 Reversible mattress
US4571763A (en) * 1984-06-29 1986-02-25 Tachikawa Spring Co., Ltd. Cushion member for a vehicle seat
US4750714A (en) * 1985-11-29 1988-06-14 Aprica Kassai Kabushikikaisha Cushion construction for child's safety seat for use in automobiles
WO1987006442A1 (en) * 1986-05-01 1987-11-05 Comfortex, Inc. Decubitus ulcer mattress
US4706313A (en) * 1986-05-01 1987-11-17 Comfortex, Inc. Decubitus ulcer mattress
US4819288A (en) * 1986-08-06 1989-04-11 National Research Development Corporation Cushions
US5025519A (en) * 1986-10-22 1991-06-25 Span-America Medical Systems, Inc. Multi-section mattress overlay for systematized pressure dispersion
EP0378109A1 (en) * 1989-01-10 1990-07-18 Werner Lück Mattress using padded parts of soft foam
US5048167A (en) * 1989-03-13 1991-09-17 Heffley James R Method for restoring used mattresses
US5231717A (en) * 1989-08-23 1993-08-03 Leggett & Platt, Incorporated Bedding system
US5031261A (en) * 1990-03-15 1991-07-16 E. R. Carpenter Company, Inc. Mattress overlay for avoidance of decubitus ulcers
US5022111A (en) * 1990-06-29 1991-06-11 E. R. Carpenter Company, Inc. Pressure reduction mattress
EP0465810A1 (en) * 1990-07-11 1992-01-15 Werner Lück Mattress
US5101527A (en) * 1990-10-29 1992-04-07 Convo Corporation Modular body support system
US5134735A (en) * 1990-11-05 1992-08-04 E. R. Carpenter Company, Inc. Mattress cushion with multiple zones
US5230110A (en) * 1990-11-05 1993-07-27 E. R. Carpenter Company, Inc. Mattress cushion with multiple zones
US5474362A (en) * 1991-06-26 1995-12-12 Albecker, Iii; Walter J. Cushions having internal support member
WO1993003654A1 (en) * 1991-08-20 1993-03-04 Jack Schwartz Multilayer mattress
US5513402A (en) * 1991-08-20 1996-05-07 Schwartz; Jack Mattress system
US5819349A (en) * 1991-08-20 1998-10-13 Schwartz; Jack Mattress
US5179742A (en) * 1991-11-01 1993-01-19 Stryker Corporation Pressure reduction mattress
US5282286A (en) * 1992-11-16 1994-02-01 Cascade Designs, Inc. Sealed composite cushion having multiple indentation force deflection zones
US5369824A (en) * 1993-10-05 1994-12-06 Powell; Bettye J. Maternity mattress
US5671492A (en) * 1995-03-14 1997-09-30 Simon; Keith Douglas Contoured asymmetrical mattress
US5611414A (en) * 1995-04-11 1997-03-18 Walker; Jeffrey R. Self-contained folding portable bed
US5815865A (en) * 1995-11-30 1998-10-06 Sleep Options, Inc. Mattress structure
US6952852B2 (en) 1995-11-30 2005-10-11 Hill-Rom Services, Inc. Mattress structure
US6378152B1 (en) 1995-11-30 2002-04-30 Hill-Rom Services, Inc. Mattress structure
US6687935B2 (en) * 1995-11-30 2004-02-10 Hill-Rom Services, Inc. Mattress structure
US6460209B1 (en) 1995-11-30 2002-10-08 Hill-Rom Services, Inc. Mattress structure
US6256819B1 (en) 1997-01-22 2001-07-10 Span-America Medical Systems, Inc. Multi-section positioning wheelchair cushion
US6249924B1 (en) * 1997-02-14 2001-06-26 Earl Sanderson Kluft Anti-roll off mattress construction
US6230351B1 (en) * 1997-03-25 2001-05-15 Robert C. Kohnle Seat cushion for minimizing decubitus ulcers
US6115861A (en) * 1997-10-09 2000-09-12 Patmark Company, Inc. Mattress structure
US6848138B1 (en) 1997-11-14 2005-02-01 Edmund K. Maier Patient support surfaces
US6223369B1 (en) 1997-11-14 2001-05-01 Span-America Medical Systems, Inc. Patient support surfaces
US6202239B1 (en) * 1998-02-25 2001-03-20 Select Comfort Corp. Multi-zone support
US6396224B1 (en) 1998-04-22 2002-05-28 Hill-Rom Services, Inc. Hand-held controller for bed and mattress assembly
US6008598A (en) * 1998-04-22 1999-12-28 Patmark Company, Inc. Hand-held controller for bed and mattress assembly
US20140115790A1 (en) * 1998-05-06 2014-05-01 Hill-Rom Services, Inc. Cover system for a patient support surface
US9462893B2 (en) * 1998-05-06 2016-10-11 Hill-Rom Services, Inc. Cover system for a patient support surface
US6223371B1 (en) 1999-04-15 2001-05-01 Steven J. Antinori Mattress and method of manufacture
US6311351B1 (en) * 1999-07-23 2001-11-06 Comfortex Health Care Surfaces Pressure reducing mattress with localized pressure point relief
US6295674B1 (en) * 2000-01-21 2001-10-02 Sleeper Solutions Foldable sleeper sofa mattress and method of manufacturing
US6442780B1 (en) * 2000-03-09 2002-09-03 Kci Licensing, Inc. Mattress with semi-independent pressure relieving pillars
US6874185B1 (en) 2000-03-09 2005-04-05 Kci Licensing, Inc. Mattress with semi-independent pressure relieving
US6516483B1 (en) * 2000-03-28 2003-02-11 The Or Group, Inc. Patient support surface
US6701558B2 (en) 2000-03-28 2004-03-09 The Or Group, Inc. Patient support surface
US6532613B2 (en) * 2001-06-07 2003-03-18 Berry, Iv Russell M. Three dimensional star shaped pliable chair
US6618883B2 (en) 2002-01-30 2003-09-16 Clair A. Angland Mattress support device for a sofa sleeper
US6662393B2 (en) 2002-03-19 2003-12-16 Dennis Boyd Composite mattress
US6637058B1 (en) * 2002-04-23 2003-10-28 Steve Lamb Surgical prone pillow structure
EP1380236A2 (en) * 2002-07-11 2004-01-14 Recticel Mattress and mattress cover
EP1380236A3 (en) * 2002-07-11 2004-02-04 Recticel Mattress and mattress cover
US20040133875A1 (en) * 2002-09-05 2004-07-08 Bea Systems, Inc. System and method for software module architecture language and compliance checking
US20120297546A1 (en) * 2002-10-17 2012-11-29 Richard Ferrell Gladney Channel-cut cushion supports
US7036173B2 (en) 2002-10-17 2006-05-02 Dreamwell,Ltd. Channel-cut cushion supports
US8918935B2 (en) * 2002-10-17 2014-12-30 Dreamwell, Ltd Channel-cut cushion supports
US8250689B2 (en) 2002-10-17 2012-08-28 Dreamwell, Ltd. Channel-cut cushion supports
US7424763B2 (en) 2002-10-17 2008-09-16 Dreamwell, Ltd. Channel-cut cushion supports
US20090139033A1 (en) * 2002-10-17 2009-06-04 Dreamwell, Ltd. Channel-cut cushion supports
US20070107133A1 (en) * 2003-07-25 2007-05-17 Meinhard Schwaiger Air-permeable mattress providing great lying comfort
US20050060809A1 (en) * 2003-09-18 2005-03-24 Rogers John E. Methods and devices for reducing stress concentration when supporting a body
US20050210595A1 (en) * 2004-03-23 2005-09-29 Di Stasio Anthony A Mattress having reticulated viscoelastic foam
US20060058587A1 (en) * 2004-09-10 2006-03-16 Heimbrock Richard H Wireless control system for a patient-support apparatus
US8125318B2 (en) 2004-09-10 2012-02-28 Hill-Rom Services, Inc. Wireless control system for a patient-support apparatus
US20060260054A1 (en) * 2004-12-23 2006-11-23 Lubbers David P Wireless control system for a patient support apparatus
US8710950B2 (en) 2004-12-23 2014-04-29 Hill-Rom Services, Inc. Wireless control system for a patient support apparatus
US20100115703A1 (en) * 2005-01-25 2010-05-13 Kluft Earl S Mattress design
US7640611B1 (en) 2005-01-25 2010-01-05 Kluft Earl S Mattress design
US7917980B2 (en) 2005-01-25 2011-04-05 Kluft Earl S Mattress design
US20060272098A1 (en) * 2005-06-03 2006-12-07 Hochschild Arthur A Composite foam mattress assembly
US7191483B2 (en) 2005-06-03 2007-03-20 American Pacific Plastic Fabricators Composite foam mattress assembly
US20070044245A1 (en) * 2005-09-01 2007-03-01 The Spring Air Company Mattress with triple zone topper
US20110012405A1 (en) * 2005-11-02 2011-01-20 Conforti Carl J Seat pad
WO2007129981A1 (en) * 2006-05-08 2007-11-15 Hoegberg Magnus Foam mattress with seat
US20080052834A1 (en) * 2006-08-30 2008-03-06 Hill Darrell G Reusable surgical perioperative positioning system
US7849540B2 (en) * 2006-08-30 2010-12-14 Health Care Positioners, Inc. Reusable surgical perioperative positioning system
US8011047B2 (en) * 2006-09-19 2011-09-06 Ronen Mandelzis Spinal relaxation apparatus
US7717520B2 (en) 2006-12-29 2010-05-18 The Boeing Company Aircraft passenger seat cushions
US20100276541A1 (en) * 2006-12-29 2010-11-04 The Boeing Company Method of Absorbing Energy in an Aircraft Passenger Seat Assembly
US20080157583A1 (en) * 2006-12-29 2008-07-03 Boren Kelly L Aircraft passenger seat cushions
US8147001B2 (en) 2006-12-29 2012-04-03 The Boeing Company Method of absorbing energy in an aircraft passenger seat assembly
US7681270B2 (en) * 2007-05-21 2010-03-23 Anodyne Medical Device, Inc. Mattress with features for improved support and comfort
US20100325806A1 (en) * 2007-10-09 2010-12-30 Sealy Technology, Llc Pressure dispersion support systems
US7845035B2 (en) * 2007-10-09 2010-12-07 Sealy Technology Llc Pressure dispersion support systems
US20090089933A1 (en) * 2007-10-09 2009-04-09 Sealy Technology, Llc Pressure dispersion support systems
CN101861111B (en) * 2007-11-15 2014-06-11 泰斯帕有限公司 System for manufacturing bodies which are subjected to pressure or shocks, designed to provide directionable damping
CN101861111A (en) * 2007-11-15 2010-10-13 泰斯帕有限公司 Be used to make the system of the pressure or the impact bearing body that are intended to realize orientable buffering
US8245341B2 (en) * 2009-03-04 2012-08-21 Zinus, Inc. Symmetrical pressure relief foam mattress
US20100223734A1 (en) * 2009-03-04 2010-09-09 Zinus Inc. Symmetrical pressure relief foam mattress
US20100223732A1 (en) * 2009-03-06 2010-09-09 Noel Group Llc Unitary composite/hybrid cushioning structure(s) and profile(s) comprised of a thermoplastic foam(s) and a thermoset material(s)
US8356373B2 (en) 2009-03-06 2013-01-22 Noel Group Llc Unitary composite/hybrid cushioning structure(s) and profile(s) comprised of a thermoplastic foam(s) and a thermoset material(s)
USD692691S1 (en) 2009-03-06 2013-11-05 Noel Group Llc Mattress bed cushion
USD692690S1 (en) 2009-03-06 2013-11-05 Noel Group Llc Mattress bed cushion
USD691401S1 (en) 2009-03-06 2013-10-15 Noel Group, Llc Mattress bed cushion
US8590075B1 (en) 2009-06-09 2013-11-26 Ibrahim H. Amjad Mattress assembly for newborn infants
US20110072587A1 (en) * 2009-09-29 2011-03-31 Nomaco Inc. Foam cushion having reduced cross-section area foam profiles forming hollow portion(s) for deformation
US20140059780A1 (en) * 2009-12-17 2014-03-06 Stryker Corporation Patient support
US9420895B2 (en) * 2009-12-17 2016-08-23 Stryker Corporation Patient support
US20110197363A1 (en) * 2010-02-12 2011-08-18 Noel Group Llc Composite cushioning structure(s) with spatially variable cushioning properties and related materials, cushioning assemblies, and methods for producing same
USD688492S1 (en) 2010-03-03 2013-08-27 Noel Group Llc Mattress bed cushion
USD694553S1 (en) 2010-03-03 2013-12-03 Noel Group Llc Mattress bed cushion
USD693148S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693145S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693144S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
US8397327B2 (en) 2010-08-31 2013-03-19 Span-America Medical Systems, Inc. Bed insert
US9867475B2 (en) * 2010-09-01 2018-01-16 Maskun Kalustetalo Oy Mattress structure, mattress system and method for using a mattress
WO2012028763A1 (en) * 2010-09-01 2012-03-08 Maskun Kalustetalo Oy Mattress structure, mattress system and method for using a mattress
US20150305514A1 (en) * 2010-09-01 2015-10-29 Maskun Kalustetalo Mattress structure, mattress system and method for using a mattress
US20120124753A1 (en) * 2010-11-19 2012-05-24 Zinus Inc. Zoned foam mattress with alternating lateral regions of HD foam and memory foam
US8832889B2 (en) * 2011-03-14 2014-09-16 Fabienne Sportis Four-sided reversible bedding element
USD692692S1 (en) 2011-04-29 2013-11-05 Noel Group Llc Mattress bed cushion
US9295599B2 (en) * 2011-09-30 2016-03-29 Offloading Technologies, Inc. Methods and systems for a dynamic support mattress to treat and reduce the incidence of pressure ulcers
US20130081208A1 (en) * 2011-09-30 2013-04-04 Offloading Technologies Inc. Methods and systems for a dynamic support mattress to treat and reduce the incidence of pressure ulcers
US20160193096A1 (en) * 2011-09-30 2016-07-07 Off-Loading Technologies Inc. Methods and systems for a dynamic support mattress to treat and reduce the incidence of pressure ulcers
US10548789B2 (en) * 2011-09-30 2020-02-04 Offloading Technologies Inc. Methods and systems for a dynamic support mattress to treat and reduce the incidence of pressure ulcers
USD691400S1 (en) 2012-02-10 2013-10-15 Nomaco Inc. Stackable base for mattress assembly
USD694552S1 (en) 2012-04-27 2013-12-03 Noel Group Llc Mattress bed cushion
USD693149S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD693146S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD693147S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD692693S1 (en) 2012-04-27 2013-11-05 Noel Group Llc Mattress bed cushion
USD697337S1 (en) 2012-07-03 2014-01-14 Nomaco, Inc. Stackable base for mattress assembly
USD690536S1 (en) 2012-07-26 2013-10-01 Nomaco Inc. Motion isolation insulator pad
USD688069S1 (en) 2012-09-28 2013-08-20 Noel Group Llc Mattress bed cushion
USD694041S1 (en) 2012-09-28 2013-11-26 Noel Group Llc Mattress bed cushion
USD692694S1 (en) 2012-09-28 2013-11-05 Noel Group Llc Mattress bed cushion
CN102836039A (en) * 2012-10-09 2012-12-26 迈柯唯医疗设备(苏州)有限公司 Waterproof breathable anti-bedsore memory mattress
USD707468S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD709301S1 (en) 2012-11-09 2014-07-22 Noel Group Llc Mattress bed cushion
USD707467S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD701713S1 (en) 2012-11-09 2014-04-01 Noel Group, Llc Mattress bed cushion
US10045633B2 (en) 2013-04-26 2018-08-14 Noel Group Llc Cushioning assemblies with thermoplastic elements encapsulated in thermoset providing customizable support and airflow, and related methods
EP2798980A1 (en) * 2013-05-02 2014-11-05 Formafoam B.V. Mattress
USD704962S1 (en) 2013-09-09 2014-05-20 Noel Group Llc Mattress bed cushion
US9516952B2 (en) * 2014-06-21 2016-12-13 L&P Property Management Company Mattress bucket retention mechanism
EP3047760B1 (en) 2015-01-21 2019-01-09 Sven Oliver Maier Method for producing a body-supporting element
US20170156508A1 (en) * 2015-12-03 2017-06-08 Polar Generation Llc Simulated zero "g" mattress and cover
US20170325596A1 (en) * 2016-05-13 2017-11-16 Perfect Pressure Inc. Foam mattress having an adjustable mattress core for adjusting and customizing its firmness, assembling method and kit thereof
US20180035819A1 (en) * 2016-08-05 2018-02-08 PT Massindo International Mattress with adjustable hardness and comfort levels
US20180168361A1 (en) * 2016-12-15 2018-06-21 Stryker Corporation Person support
US10835051B2 (en) * 2016-12-15 2020-11-17 Stryker Corporation Person support
US9854922B1 (en) 2017-01-18 2018-01-02 Pranasleep, LLC Ergonomic mattress having support sections with internal variations
US20190298078A1 (en) * 2018-04-03 2019-10-03 John William Vester, III Custom Foam Mattress Design System
US11006765B2 (en) * 2018-04-03 2021-05-18 John William Vester, III Custom foam mattress design system
US20210259435A1 (en) * 2018-04-03 2021-08-26 John William Vester, III Custom Foam Mattress Design System
US11944205B2 (en) * 2018-04-03 2024-04-02 Custom Sleep Technology, Llc Custom foam mattress design system
US10820718B1 (en) * 2020-07-10 2020-11-03 Sonu Sleep Corporation Bed with negative space
US11906881B2 (en) 2020-12-03 2024-02-20 Direct Supply, Inc. Medical mattress failure detection device

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