US3769643A - Mattresses - Google Patents
Mattresses Download PDFInfo
- Publication number
- US3769643A US3769643A US00216103A US3769643DA US3769643A US 3769643 A US3769643 A US 3769643A US 00216103 A US00216103 A US 00216103A US 3769643D A US3769643D A US 3769643DA US 3769643 A US3769643 A US 3769643A
- Authority
- US
- United States
- Prior art keywords
- mattress
- base member
- recess
- rib insert
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 210000003141 lower extremity Anatomy 0.000 claims description 5
- 239000011324 bead Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
- A47C23/04—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled
- A47C23/043—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled using wound springs
- A47C23/0433—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled using wound springs of different resilience
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C21/00—Attachments for beds, e.g. sheet holders or bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
- A47C21/06—Mattress underlays
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
- A47C23/34—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases with provisions for giving extra support for the head or the legs
-
- 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
-
- 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
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/045—Attachment of spring inlays to coverings; Use of stiffening sheets, lattices or grids under spring inlays
- A47C27/0456—Use of stiffening sheets, lattices or grids in, on, or under, spring inlays
-
- 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
- A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
- A47C27/06—Spring inlays
- A47C27/062—Spring inlays of different resiliencies
Definitions
- a mattress has a recess in the bottom face thereof and is used in combination with a base member having a rib insert protruding from the top thereof into the said recess; springs in at least the end portions of the base member underlie and are aligned with springs in the corresponding end portions of the mattress.
- the rib insert is separable from the base member and connected thereto with some free upward movement permitted by the connection.
- a super- This invention relates to mattresses of the kind com- 5 Structure is of the l'ectangularpl'ismaflc Shape of thc prising a base on which rests a superstructure which is the mattress proper, the medial zone of this superstructure being recessed to receive a rigid insert which is located to support the trunk of a person recumbent l0 thereon, while the head and limbs are supported by less rigid zones.
- a resilient mattress for support of a person lying thereon, the mattress being of uniform thickness at its end portions for support of the head and lower limbs of the body of the said person, a recess in the bottom face of the mattress located intermediate of the length of the mattress and forming a reduced thickness portion for support of the area between the shoulders and hips of the said person, a rigid flat top supporting base member of substantially the same area as the mattress and upon which the mattress rests, and a separable rigid flat top rib insert protruding from'the top of the supporting base member and connected thereto by a movementpermitting connection for reception within the recess, the rib insert being of the same dimensions as the recess and supporting the reduced thickness portion of the mattress above the recess and the said movementpermitting connection permitting free upward movement of the rib insert relative to the base member within predetermined limits to permit the insertion of a mattress covering sheet between the rib insert and the
- the said mattress comprises a plurality of springs disposed interiorly thereof for resilient support of the said person thereon, while the said base support comprises another plurality of springs which underlie and are aligned with springs of the mattress at least at the said end portions thereof.
- the springs in the base member may be somewhat stiffer than are the springs of the mattress proper.
- FIG. 1 is an exploded view of a complete assembly comprising a base, mattress and separable rigid insert.
- FIG. 2 is a side elevation with parts of the side wall shown broken away to reveal the interior
- FIG. 3 is a fragmentary sectional elevation through the insert and the adjacent part of the base.
- the superstructure is provided with a series of internal coil springs 14 arranged in parallel rows.
- the base 16 which cooperates with the superstructure is a box defined by a base plate 18, aperipheral bead 20 of stiff wire, and fabric walls and a top 22 and 24 respectively.
- a series of coil springs 26 are arranged, which springs are somewhat stiffer in characteristic than the springs 14 of the superstructure.
- the springs 26 are so located that each of the springs 14 is underlain by, and aligned with, a spring 26.
- a rib-like insert 28 is shaped to fit snugly within the recess 12, and is held in position upon the base 16 by means of a movement permitting connection comprising four studs 30 projecting downwardly from it and passing through holes in two cross beams 32 in the base, secured to the bead 20.
- the studs carry nuts 34 constituting stop members which are normally disposed below and spaced from the beams, but the threading on the studs is so limited that the insert is permitted some free upward movement relatively to the base within a predetermined limit.
- the principal purpose of this construction is that, when the bed is being made, it is possible to tuck the edge of the mattress covering sheet between the insert and the base.
- the effect of the sprung base is that the superstructure is in what may be termed a floating condition on the base.
- the base springs underlying the insert press collectively against the rigid underface of the insert, so that the firmness of the mattress in the medial zone is well maintained; while the resiliency of the mattress in the end zones is somewhat increased by reason of the springiness of the base, a springiness which is nonetheless not spongy because of the coincidence of the springs of the base and superstructure.
- a resilient mattress for support of a person lying thereon the mattress being of uniform thickness at its end portions for support of the head and lower limbs of the body of the said person, a recess in the bottom face of the mattress located intermediate of the length of the mattress and forming a reduced thickness portion for support of the area between the shoulders and hips of the said person, the said mattress comprising a plurality of springs disposed interiorly thereof for resilient support of the said person thereon, a rigid flat top supporting base member of substantially the same area as the mattress and upon which the mattress rests, the said base support comprising another plurality of springs which underlie and are aligned with springs of the mattress at least at the said end portions thereof, and a rigid flat top rib insert protruding from the top of the supporting base member for reception within the recess, the rib insert being of the same dimensions as the recess and supporting the reduced thickness portion of the mattress above the recess, the rib insert being separable from and connected by a movement-permitting connection to the top of the mattress
- thesaid movement-permitting connection comprises a plurality of studs projecting downwardly from the rib insert into corresponding holes in beams in the base member and stop members on the studs disposed below and spaced from the said beams.
- a resilient mattress for support of a person lying thereon the mattress being of uniform thickness at its end portions for support of the head and lower limbs of the body of the said person, a recess in the bottom face of the mattress located intermediate of the length of the mattress and forming a reduced thickness portion for support of the area between the shoulders and hips of the said person, a rigid flat top supporting base member of substantially the same area as the mattress and upon which the mattress rests, and a separable rigid flat top rib insert protruding from the top of the supporting base member and connected thereto by a movementpermitting connection for reception within the recess, the rib insert being of the same dimensions as the recess and supporting the reduced thickness portion of the mattress above the recess and the said movementpermitting connection permitting free upward movement of the rib insert relative to the base member within predetermined limits to permit the insertion of a mattress covering sheet between the rib insert and the base member.
- the said movement-permitting connection comprises a plurality of studs projecting downwardly from the rib insert into corresponding holes in beams in the base member and stop members on the studs disposed below and spaced from the said beams.
Landscapes
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
A mattress has a recess in the bottom face thereof and is used in combination with a base member having a rib insert protruding from the top thereof into the said recess; springs in at least the end portions of the base member underlie and are aligned with springs in the corresponding end portions of the mattress. The rib insert is separable from the base member and connected thereto with some free upward movement permitted by the connection.
Description
United States Patent Adler 1 1 Nov. 6, 1973 [54] MATTRESSES Primar Examiner-Francis K. Zu el 76 1 t H M. Adl 133 H k St., y g 1 men or gz i i zi g Assistant Examiner-Andrew M. Calvert AttorneyStanley J. Rogers [22] Filed: Jan. 7, 1972 Appl. No.: 216,103
[52] [1.8. CI. 5/351, 5/357 [51] Int. Cl. A47c 23/00 [58] Field of Search 5/345, 347, 357, 5/353, 351
[56] References Cited UNITED STATES PATENTS 3,083,380 4/1963 Adler 5/345 R 3,534,417 10/1970 Boyles 5/345 R [57] ABSTRACT A mattress has a recess in the bottom face thereof and is used in combination with a base member having a rib insert protruding from the top thereof into the said recess; springs in at least the end portions of the base member underlie and are aligned with springs in the corresponding end portions of the mattress. The rib insert is separable from the base member and connected thereto with some free upward movement permitted by the connection.
4 Claims, 3 Drawing Figures MATTRESSES IMPROVEMENTS IN MATTRESSES Field of the Invention DESCRIPTION OF THE PREFERRED EMBODIMENT In the embodiment shown in the drawings a super- This invention relates to mattresses of the kind com- 5 Structure is of the l'ectangularpl'ismaflc Shape of thc prising a base on which rests a superstructure which is the mattress proper, the medial zone of this superstructure being recessed to receive a rigid insert which is located to support the trunk of a person recumbent l0 thereon, while the head and limbs are supported by less rigid zones.
REVIEW OF THE PRIOR ART DEFINITION OF THE INVENTION In accordance with the present invention there is provided a resilient mattress for support of a person lying thereon, the mattress being of uniform thickness at its end portions for support of the head and lower limbs of the body of the said person, a recess in the bottom face of the mattress located intermediate of the length of the mattress and forming a reduced thickness portion for support of the area between the shoulders and hips of the said person, a rigid flat top supporting base member of substantially the same area as the mattress and upon which the mattress rests, and a separable rigid flat top rib insert protruding from'the top of the supporting base member and connected thereto by a movementpermitting connection for reception within the recess, the rib insert being of the same dimensions as the recess and supporting the reduced thickness portion of the mattress above the recess and the said movementpermitting connection permitting free upward movement of the rib insert relative to the base member within predetermined limits to permit the insertion of a mattress covering sheet between the rib insert and the base member.
Preferably the said mattress comprises a plurality of springs disposed interiorly thereof for resilient support of the said person thereon, while the said base support comprises another plurality of springs which underlie and are aligned with springs of the mattress at least at the said end portions thereof.
The springs in the base member may be somewhat stiffer than are the springs of the mattress proper.
DESCRIPTION OF THE DRAWINGS An embodiment of the invention will now be described by way of example, with reference to the accompanying drawings, in which FIG. 1 is an exploded view of a complete assembly comprising a base, mattress and separable rigid insert.
FIG. 2 is a side elevation with parts of the side wall shown broken away to reveal the interior, and
FIG. 3 is a fragmentary sectional elevation through the insert and the adjacent part of the base.
conventional mattress, except that it is formed with a rectangular recess 12 in its lower face. The superstructure is provided with a series of internal coil springs 14 arranged in parallel rows.
The base 16 which cooperates with the superstructure is a box defined by a base plate 18, aperipheral bead 20 of stiff wire, and fabric walls and a top 22 and 24 respectively. Inside the cavity of the box a series of coil springs 26 are arranged, which springs are somewhat stiffer in characteristic than the springs 14 of the superstructure. The springs 26 are so located that each of the springs 14 is underlain by, and aligned with, a spring 26. a
A rib-like insert 28 is shaped to fit snugly within the recess 12, and is held in position upon the base 16 by means of a movement permitting connection comprising four studs 30 projecting downwardly from it and passing through holes in two cross beams 32 in the base, secured to the bead 20. The studs carry nuts 34 constituting stop members which are normally disposed below and spaced from the beams, but the threading on the studs is so limited that the insert is permitted some free upward movement relatively to the base within a predetermined limit. The principal purpose of this construction is that, when the bed is being made, it is possible to tuck the edge of the mattress covering sheet between the insert and the base.
The effect of the sprung base is that the superstructure is in what may be termed a floating condition on the base. The base springs underlying the insert press collectively against the rigid underface of the insert, so that the firmness of the mattress in the medial zone is well maintained; while the resiliency of the mattress in the end zones is somewhat increased by reason of the springiness of the base, a springiness which is nonetheless not spongy because of the coincidence of the springs of the base and superstructure.
I claim:
1. A resilient mattress for support of a person lying thereon, the mattress being of uniform thickness at its end portions for support of the head and lower limbs of the body of the said person, a recess in the bottom face of the mattress located intermediate of the length of the mattress and forming a reduced thickness portion for support of the area between the shoulders and hips of the said person, the said mattress comprising a plurality of springs disposed interiorly thereof for resilient support of the said person thereon, a rigid flat top supporting base member of substantially the same area as the mattress and upon which the mattress rests, the said base support comprising another plurality of springs which underlie and are aligned with springs of the mattress at least at the said end portions thereof, and a rigid flat top rib insert protruding from the top of the supporting base member for reception within the recess, the rib insert being of the same dimensions as the recess and supporting the reduced thickness portion of the mattress above the recess, the rib insert being separable from and connected by a movement-permitting connection to the top of the supporting base member, the said movement-permitting connection permitting free upward movement of the rib insert relative to the base member within predetermined limits to permit the insertion of a mattress covering sheet between the rib insert and the base member.
2. The invention as claimed in claim 1, wherein thesaid movement-permitting connection comprises a plurality of studs projecting downwardly from the rib insert into corresponding holes in beams in the base member and stop members on the studs disposed below and spaced from the said beams.
3. A resilient mattress for support of a person lying thereon, the mattress being of uniform thickness at its end portions for support of the head and lower limbs of the body of the said person, a recess in the bottom face of the mattress located intermediate of the length of the mattress and forming a reduced thickness portion for support of the area between the shoulders and hips of the said person, a rigid flat top supporting base member of substantially the same area as the mattress and upon which the mattress rests, and a separable rigid flat top rib insert protruding from the top of the supporting base member and connected thereto by a movementpermitting connection for reception within the recess, the rib insert being of the same dimensions as the recess and supporting the reduced thickness portion of the mattress above the recess and the said movementpermitting connection permitting free upward movement of the rib insert relative to the base member within predetermined limits to permit the insertion of a mattress covering sheet between the rib insert and the base member.
4. The invention as claimed in claim 3, wherein the said movement-permitting connection comprises a plurality of studs projecting downwardly from the rib insert into corresponding holes in beams in the base member and stop members on the studs disposed below and spaced from the said beams.
Claims (4)
1. A resilient mattress for support of a person lying thereon, the mattress being of uniform thickness at its end portions for support of the head and lower limbs of the body of the said person, a recess in the bottom face of the mattress located intermediate of the length of the mattress and forming a reduced thickness portion for support of the area between the shoulders and hips of the said person, the said mattress comprising a plurality of springs disposed interiorly thereof for resilient support of the said person thereon, a rigid flat top supporting base member of substantially the same area as the mattress and upon which the mattress rests, the said base support comprising another plurality of springs which underlie and are aligned with springs of the mattress at least at the said end portions thereof, and a rigid flat top rib insert protruding from the top of the supporting base member for reception within the recess, the rib insert being of the same dimensions as the recess and supporting the reduced thickness portion of the mattress above the recess, the rib insert being separable from and connected by a movement-permitting connection to the top of the supporting base member, the said movement-permitting connection permitting free upward movement of the rib insert relative to the base member within predetermined limits to permit the insertion of a mattress covering sheet between the rib insert and the base member.
2. The invention as claimed in claim 1, wherein the said movement-permitting connection comprises a plurality of studs projecting downwardly from the rib insert into corresponding holes in beams in the base member and stop members on the studs disposed below and spaced from the said beams.
3. A resilient mattress for support of a person lying thereon, the mattress being of uniform thickness at its end portions for support of the head and lower limbs of the body of the said person, a recess in the bottom face of the mattress located intermediate of the length of the mattress and forming a reduced thickness portion for support of the area between the shoulders and hips of the said person, a rigid flat top supporting base member of substantially the same area as the mattress and upon which the mattress rests, and a separable rigid flat top rib insert protruding from the top of the supporting base member and connected thereto by a movement-permitting connection for reception within the recess, the rib insert being of the same dimensions as the recess and supporting the reduced thickness portion of the mattress above the recess and the said movement-permitting connection permitting free upward movement of the rib insert relative to the base member within predetermined limits to permit the insertion of a mattress covering sheet between the rib insert and the base member.
4. The invention as claimed in claim 3, wherein the said movement-permitting connection comprises a plurality of studs projecting downwardly from the rib insert into corresponding holes in beams in the base member and stop members on the studs disposed below and spaced from the said beams.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA710156A ZA71156B (en) | 1971-01-11 | 1971-01-11 | Improvements in mattresses |
| US21610372A | 1972-01-07 | 1972-01-07 | |
| JP1214872A JPS549545B2 (en) | 1971-01-11 | 1972-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3769643A true US3769643A (en) | 1973-11-06 |
Family
ID=43416329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00216103A Expired - Lifetime US3769643A (en) | 1971-01-11 | 1972-01-07 | Mattresses |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3769643A (en) |
| JP (1) | JPS549545B2 (en) |
| CA (1) | CA941981A (en) |
| DE (1) | DE2200715A1 (en) |
| FR (1) | FR2122143A5 (en) |
| GB (1) | GB1343740A (en) |
| ZA (1) | ZA71156B (en) |
| ZM (1) | ZM19471A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4860396A (en) * | 1988-08-05 | 1989-08-29 | Vogel Ii Frank D | Backboard for dual occupancy bed |
| WO1991002472A1 (en) * | 1989-08-23 | 1991-03-07 | Leggett & Platt, Incorporated | Bedding system |
| US5231717A (en) * | 1989-08-23 | 1993-08-03 | Leggett & Platt, Incorporated | Bedding system |
| US6353952B1 (en) * | 2000-05-31 | 2002-03-12 | L&P Property Management Company | Posturized bedding or seating product with springs of differing heights |
| US20120289759A1 (en) * | 2011-05-13 | 2012-11-15 | Michael Lynch | Interlocking vacuum cushion |
| US20130326814A1 (en) * | 2012-06-11 | 2013-12-12 | Huafeng Shan | Electric Bed Bedboard with Embedded Fixed Structure |
| US20150290054A1 (en) * | 2014-04-15 | 2015-10-15 | Panasonic Intellectual Property Management Co., Ltd. | Integrated-bed mattress and integrated bed |
| US9332857B2 (en) * | 2013-12-11 | 2016-05-10 | Tempur-Pedic Management, Llc | Mattress assembly |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215765A (en) * | 1975-07-25 | 1977-02-05 | Susumu Takahashi | Cushion material |
| JPS5226958A (en) * | 1975-08-26 | 1977-02-28 | Susumu Takahashi | Cushion material |
| GB2207045B (en) * | 1987-07-25 | 1991-03-13 | Peter Douglas Spinks | Improved zonal support spring mattresses |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3083380A (en) * | 1961-12-26 | 1963-04-02 | Harry M Adler | Mattresses |
| US3534417A (en) * | 1968-07-08 | 1970-10-20 | Truman C Boyles | Reversible foam mattress having different degrees of firmness |
-
1971
- 1971-01-11 ZA ZA710156A patent/ZA71156B/en unknown
- 1971-12-31 ZM ZM194/71A patent/ZM19471A1/en unknown
-
1972
- 1972-01-06 FR FR7200287A patent/FR2122143A5/fr not_active Expired
- 1972-01-07 DE DE19722200715 patent/DE2200715A1/en active Pending
- 1972-01-07 US US00216103A patent/US3769643A/en not_active Expired - Lifetime
- 1972-01-10 CA CA132,001A patent/CA941981A/en not_active Expired
- 1972-01-10 GB GB102972A patent/GB1343740A/en not_active Expired
- 1972-02-02 JP JP1214872A patent/JPS549545B2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3083380A (en) * | 1961-12-26 | 1963-04-02 | Harry M Adler | Mattresses |
| US3534417A (en) * | 1968-07-08 | 1970-10-20 | Truman C Boyles | Reversible foam mattress having different degrees of firmness |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4860396A (en) * | 1988-08-05 | 1989-08-29 | Vogel Ii Frank D | Backboard for dual occupancy bed |
| WO1991002472A1 (en) * | 1989-08-23 | 1991-03-07 | Leggett & Platt, Incorporated | Bedding system |
| US5231717A (en) * | 1989-08-23 | 1993-08-03 | Leggett & Platt, Incorporated | Bedding system |
| US6353952B1 (en) * | 2000-05-31 | 2002-03-12 | L&P Property Management Company | Posturized bedding or seating product with springs of differing heights |
| US9308146B2 (en) * | 2002-11-06 | 2016-04-12 | Huafeng Shan | Electric bed bedboard with embedded fixed structure |
| US20120289759A1 (en) * | 2011-05-13 | 2012-11-15 | Michael Lynch | Interlocking vacuum cushion |
| US20130326814A1 (en) * | 2012-06-11 | 2013-12-12 | Huafeng Shan | Electric Bed Bedboard with Embedded Fixed Structure |
| US9332857B2 (en) * | 2013-12-11 | 2016-05-10 | Tempur-Pedic Management, Llc | Mattress assembly |
| US20150290054A1 (en) * | 2014-04-15 | 2015-10-15 | Panasonic Intellectual Property Management Co., Ltd. | Integrated-bed mattress and integrated bed |
| US9757287B2 (en) * | 2014-04-15 | 2017-09-12 | Panasonic Intellectual Property Management Co., Ltd. | Integrated-bed mattress and integrated bed |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2122143A5 (en) | 1972-08-25 |
| ZM19471A1 (en) | 1972-08-21 |
| CA941981A (en) | 1974-02-12 |
| DE2200715A1 (en) | 1973-10-25 |
| GB1343740A (en) | 1974-01-16 |
| JPS4883962A (en) | 1973-11-08 |
| JPS549545B2 (en) | 1979-04-25 |
| ZA71156B (en) | 1972-07-26 |
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