US20150210498A1 - Compression apparatus and method - Google Patents

Compression apparatus and method Download PDF

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Publication number
US20150210498A1
US20150210498A1 US14/420,692 US201314420692A US2015210498A1 US 20150210498 A1 US20150210498 A1 US 20150210498A1 US 201314420692 A US201314420692 A US 201314420692A US 2015210498 A1 US2015210498 A1 US 2015210498A1
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US
United States
Prior art keywords
resilient
unit
tension
resilient unit
winding roller
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.)
Abandoned
Application number
US14/420,692
Inventor
David Clare
Simon Spinks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harrison Spinks Components Ltd
Original Assignee
Harrison Spinks Components Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Assigned to HARRISON SPINKS COMPONENTS LIMITED reassignment HARRISON SPINKS COMPONENTS LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CLARE, DAVID, SPINKS, SIMON
Publication of US20150210498A1 publication Critical patent/US20150210498A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • B65H23/1955—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations and controlling web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
    • B65B63/02—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
    • B65B63/02—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles
    • B65B63/024—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles for compressing by winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B68—SADDLERY; UPHOLSTERY
    • B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
    • B68G9/00—Placing upholstery springs in pockets; Fitting springs in upholstery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/512—Changing form of handled material
    • B65H2301/5124—Stretching; Tentering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B65H2404/143—Roller pairs driving roller and idler roller arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B65H2404/147—Roller pairs both nip rollers being driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/20—Actuating means angular
    • B65H2555/24—Servomotors

Definitions

  • the present invention relates to compression apparatus and a compression method, and is particularly concerned with apparatus and a method for compressing resilient units for storage and/or transportation.
  • Resilient units such as for example pocketed spring units, for use in upholstered items such as mattresses, or in resilient pads or panels, typically comprise a plurality of springs which are encapsulated in pockets formed between layers of material.
  • International patent application No. WO 2007/031774 describes an example of such a pocketed spring unit and a method of manufacturing the same.
  • Embodiments of the present invention aim to address the above-mentioned problem.
  • compression apparatus arranged to compress a resilient unit comprising a plurality of resilient elements located within one or more pockets formed between layers of material, the apparatus comprising tensioning means arranged to apply tension to the material, and winding means arranged to wind the material into a roll, wherein the application of tension to the material causes the resilient elements to become compressed prior to winding into the roll, thereby causing the resilient unit to take up less volume.
  • the winding means may comprise a winding roller.
  • the apparatus is arranged to place the resilient unit in tension by pulling the material between the winding roller and the tensioning means.
  • the tensioning means comprises one or more tensioning rollers, through or against which the resilient unit is arranged to pass.
  • winding roller and at least one tensioning roller are allowed or caused to rotate at different speeds to apply tension to the resilient unit.
  • the application of tension to the material in a longitudinal direction of the resilient unit is arranged to cause the material to compress the resilient elements between the layers of material.
  • the resilient elements may comprise springs, which may be compression springs.
  • the resilient unit may comprise a pocketed spring unit.
  • the invention also includes a method of compressing a resilient unit comprising a plurality of resilient elements located within one or more pockets formed between layers of material, the method comprising applying tension to the material so as to cause the resilient elements to become compressed and winding the material under tension into a roll.
  • the method comprises winding the material using a winding roller.
  • the method preferably comprises applying tension to the resilient unit by pulling the resilient unit between the winding roller and tensioning means, which may comprise one or more tensioning rollers.
  • the method comprises allowing or causing rollers to rotate at different speeds to cause the tension to be applied to the material of the unit between the winding roller and the or each tensioning roller.
  • the application of tension to the material in a longitudinal direction of the resilient unit is arranged to bring about an extension of said unit in said longitudinal direction that is substantially proportional to a reduction in a thickness of the resilient unit.
  • the invention may comprise any combination of the features or limitations referred to herein, except such a combination of features as are mutually exclusive.
  • FIGS. 1 a and 1 b are schematic views of a portion of resilient unit suitable for use with apparatus or a method according to the present invention
  • FIG. 2 is schematic side view of the compression apparatus according to an embodiment of the present invention.
  • FIGS. 3 a and 3 b are schematic views respectively of a portion of resilient material before compression and after compression.
  • FIGS. 1 a and 1 b show, generally at 10 , a portion of a resilient unit in the form of a pocketed spring unit.
  • the resilient unit comprises a number of springs 12 arranged in an array, each spring being encased within its own pocket formed between superposed layers 14 of material.
  • the layers are spaced apart with the springs in between and are welded at selected positions 16 between adjacent springs, to form a grid-like pattern.
  • International patent application No. WO 2007/031774 describes in detail one method of manufacturing such a pocketed spring unit in which the springs are compressed and then pushed between layers of material which are welded at spaced locations between the springs to form discrete pockets for the springs.
  • the pocketed spring unit can be made thinner, i.e. the springs can be compressed, by pulling the layers of material in a direction transverse to the axes of the springs.
  • the springs are, for example, conically coiled wire springs, they may be compressed to a great extent, wherein they have a depth of the order of the thickness of one coil—i.e. the thickness of the wire itself.
  • FIG. 2 shows schematically apparatus for compressing the resilient unit.
  • the resilient unit is fed as a continuous web 18 through first and second tensioning rollers 20 , 22 to a winding roller 24 .
  • the winding roller is driven at a first speed, and one or both of the tensioning rollers is also driven, but at a second speed which is less than the first speed—i.e. slower than that of the winding roller.
  • the result is that the resilient unit becomes compressed in its through thickness direction—the axial direction of the springs—before it is wound into the winding roller.
  • the resilient unit extends in length in a longitudinal direction in which tension is applied. The extension in length is substantially proportional to a reduction in a thickness of the resilient unit.
  • Servo-control (not shown) can be applied to one or more of the driven rollers to ensure that their relative speed, and hence the tension in the material, is maintained at a substantially constant level.
  • the resilient unit When under tension the resilient unit substantially flattens, the extent depending upon the degree of tension applied, within working limits.
  • the pockets become substantially flat and return to a shape that they had initially held during manufacture, dependent upon the pattern of the welding or gluing of the layers from which they are formed.
  • the roll of web When the desired quantity of resilient unit web has been wound on to the roller the roll of web is taped or wrapped to prevent unravelling.
  • FIGS. 3 a and 3 b show, respectively a portion of resilient unit before and after compression in the apparatus of FIG. 2 .
  • a benefit of compressing the resilient elements in this way is that the length of resilient unit that can be wound on to a roll 24 of a given diameter is much greater than would be the case with an uncompressed resilient unit. Therefore, the quantity of resilient unit will take up less space, perhaps anything up to 90% less space, and so is more efficiently stored and/or more cheaply transported.
  • the resilient unit can be unwound from the roll, allowing it to return to an uncompressed state, and then cut to length as required for e.g. a mattress, a seat base or other pad or panel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding Of Webs (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Collation Of Sheets And Webs (AREA)

Abstract

A resilient unit is fed as a continuous web 18 through first and second tensioning rollers 20, 22 to a winding roller 24. The winding roller is driven at a first speed, and one or both of the tensioning rollers is also driven, but at a second speed which is less than the first speed—i.e. slower than that of the winding roller. The difference is speeds causes tension to be applied to the material of the resilient unit which stretches the resilient unit and in turn compresses the resilient elements in their pockets. The result is that the resilient unit becomes compressed in its through thickness direction—the axial direction of the springs—before it is wound into the winding roller. The resilient unit extends in length in a longitudinal direction in which tension is applied. The extension in length is substantially proportional to a reduction in a thickness of the resilient unit.

Description

  • The present invention relates to compression apparatus and a compression method, and is particularly concerned with apparatus and a method for compressing resilient units for storage and/or transportation.
  • Resilient units such as for example pocketed spring units, for use in upholstered items such as mattresses, or in resilient pads or panels, typically comprise a plurality of springs which are encapsulated in pockets formed between layers of material. International patent application No. WO 2007/031774 describes an example of such a pocketed spring unit and a method of manufacturing the same.
  • Previously, such spring units have been stored and/or transported in the form of sheets which are stacked and sometimes folded. One problem with this arises from the fact that, though relatively light in weight, the spring units are bulky, and so occupy a relatively large volume. This is inefficient for storage and costly for transportation.
  • Embodiments of the present invention aim to address the above-mentioned problem.
  • The present invention is defined in the attached independent claims to which reference should now be made. Preferred features can be found in the sub-claims appended thereto.
  • According to the present invention there is provided compression apparatus arranged to compress a resilient unit comprising a plurality of resilient elements located within one or more pockets formed between layers of material, the apparatus comprising tensioning means arranged to apply tension to the material, and winding means arranged to wind the material into a roll, wherein the application of tension to the material causes the resilient elements to become compressed prior to winding into the roll, thereby causing the resilient unit to take up less volume.
  • The winding means may comprise a winding roller.
  • Preferably the apparatus is arranged to place the resilient unit in tension by pulling the material between the winding roller and the tensioning means.
  • Preferably the tensioning means comprises one or more tensioning rollers, through or against which the resilient unit is arranged to pass.
  • Preferably the winding roller and at least one tensioning roller are allowed or caused to rotate at different speeds to apply tension to the resilient unit.
  • Preferably the application of tension to the material in a longitudinal direction of the resilient unit is arranged to cause the material to compress the resilient elements between the layers of material.
  • The resilient elements may comprise springs, which may be compression springs.
  • The resilient unit may comprise a pocketed spring unit.
  • The invention also includes a method of compressing a resilient unit comprising a plurality of resilient elements located within one or more pockets formed between layers of material, the method comprising applying tension to the material so as to cause the resilient elements to become compressed and winding the material under tension into a roll.
  • Preferably the method comprises winding the material using a winding roller.
  • The method preferably comprises applying tension to the resilient unit by pulling the resilient unit between the winding roller and tensioning means, which may comprise one or more tensioning rollers.
  • In a preferred arrangement the method comprises allowing or causing rollers to rotate at different speeds to cause the tension to be applied to the material of the unit between the winding roller and the or each tensioning roller.
  • In a preferred arrangement, the application of tension to the material in a longitudinal direction of the resilient unit is arranged to bring about an extension of said unit in said longitudinal direction that is substantially proportional to a reduction in a thickness of the resilient unit.
  • The invention may comprise any combination of the features or limitations referred to herein, except such a combination of features as are mutually exclusive.
  • A preferred embodiment of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:
  • FIGS. 1 a and 1 b are schematic views of a portion of resilient unit suitable for use with apparatus or a method according to the present invention;
  • FIG. 2 is schematic side view of the compression apparatus according to an embodiment of the present invention; and
  • FIGS. 3 a and 3 b are schematic views respectively of a portion of resilient material before compression and after compression.
    •
  • Turning to FIGS. 1 a and 1 b, these show, generally at 10, a portion of a resilient unit in the form of a pocketed spring unit. The resilient unit comprises a number of springs 12 arranged in an array, each spring being encased within its own pocket formed between superposed layers 14 of material. The layers are spaced apart with the springs in between and are welded at selected positions 16 between adjacent springs, to form a grid-like pattern. International patent application No. WO 2007/031774 describes in detail one method of manufacturing such a pocketed spring unit in which the springs are compressed and then pushed between layers of material which are welded at spaced locations between the springs to form discrete pockets for the springs.
  • It has been found that, because of the surplus of material around the spring, the position of the welds and also the ready compressibility of the springs, that the pocketed spring unit can be made thinner, i.e. the springs can be compressed, by pulling the layers of material in a direction transverse to the axes of the springs.
  • If the springs are, for example, conically coiled wire springs, they may be compressed to a great extent, wherein they have a depth of the order of the thickness of one coil—i.e. the thickness of the wire itself.
  • FIG. 2 shows schematically apparatus for compressing the resilient unit. The resilient unit is fed as a continuous web 18 through first and second tensioning rollers 20, 22 to a winding roller 24. The winding roller is driven at a first speed, and one or both of the tensioning rollers is also driven, but at a second speed which is less than the first speed—i.e. slower than that of the winding roller.
  • The difference is speeds causes tension to be applied to the material of the resilient unit which stretches the resilient unit and in turn compresses the resilient elements in their pockets. The result is that the resilient unit becomes compressed in its through thickness direction—the axial direction of the springs—before it is wound into the winding roller. The resilient unit extends in length in a longitudinal direction in which tension is applied. The extension in length is substantially proportional to a reduction in a thickness of the resilient unit.
  • Servo-control (not shown) can be applied to one or more of the driven rollers to ensure that their relative speed, and hence the tension in the material, is maintained at a substantially constant level.
  • It is not necessary to drive both of the tensioning rollers 20 and 22.
  • When under tension the resilient unit substantially flattens, the extent depending upon the degree of tension applied, within working limits. The pockets become substantially flat and return to a shape that they had initially held during manufacture, dependent upon the pattern of the welding or gluing of the layers from which they are formed. When the desired quantity of resilient unit web has been wound on to the roller the roll of web is taped or wrapped to prevent unravelling.
  • FIGS. 3 a and 3 b show, respectively a portion of resilient unit before and after compression in the apparatus of FIG. 2.
  • A benefit of compressing the resilient elements in this way is that the length of resilient unit that can be wound on to a roll 24 of a given diameter is much greater than would be the case with an uncompressed resilient unit. Therefore, the quantity of resilient unit will take up less space, perhaps anything up to 90% less space, and so is more efficiently stored and/or more cheaply transported.
  • Once the resilient unit is needed it can be unwound from the roll, allowing it to return to an uncompressed state, and then cut to length as required for e.g. a mattress, a seat base or other pad or panel.
  • The example described above uses coil springs as the resilient elements. However, other resilient elements could be used, such as other types of spring, provided that the layers if material lie spaced apart in the direction of compression of the resilient element.
  • Whilst endeavouring in the foregoing specification to draw attention to those features of the invention believed to be of particular importance, it should be understood that the applicant claims protection in respect of any patentable feature or combination of features referred to herein, and/or shown in the drawings, whether or not particular emphasis has been placed thereon.

Claims (14)

1. Compression apparatus arranged to compress a resilient unit comprising a plurality of resilient elements located within one or more pockets formed between layers of material, the apparatus comprising tensioning means arranged to apply tension to the material, and winding means arranged to wind the material into a roll, wherein the application of tension to the material causes the resilient elements to become compressed prior to winding into the roll, thereby causing the resilient unit to take up less volume.
2. Apparatus according to claim 1, wherein the winding means comprises a winding roller.
3. Apparatus according to claim 2, wherein the apparatus is arranged to place the resilient unit in tension by pulling the material between the winding roller and the tensioning means.
4. Apparatus according to claim 2, wherein the tensioning means comprises one or more tensioning rollers, through or against which the resilient unit is arranged to pass.
5. Apparatus according to claim 4, wherein the winding roller and at least one tensioning roller are allowed or caused to rotate at different speeds to apply tension to the resilient unit.
6. Apparatus according to claim 1, wherein the application of tension to the material in a longitudinal direction of the resilient unit is arranged to cause the material to compress the resilient elements between the layers of material.
7. Apparatus according to claim 1, wherein the application of tension to the material in a longitudinal direction of the resilient unit is arranged to bring about an extension of said unit in said longitudinal direction that is substantially proportional to a reduction in a thickness of the resilient unit.
8. Apparatus according to claim 1, wherein the resilient elements comprise springs.
9. Apparatus according to claim 1, wherein the resilient unit comprises a pocketed spring unit.
10. A method of compressing a resilient unit comprising a plurality of resilient elements located within one or more pockets formed between layers of material, the method comprising applying tension to the material so as to cause the resilient elements to become compressed and winding the material under tension into a roll
11. A method according to claim 9, wherein the method comprises winding the material using a winding roller.
12. A method according to claim 10, wherein the method comprises applying tension to the resilient unit by pulling the resilient unit between the winding roller and tensioning means.
13. A method according to claim 11, wherein the method includes pulling the resilient unit between the winding roller and one or more tensioning rollers.
14. A method according to claim 12, wherein the method comprises allowing or causing rollers to rotate at different speeds to cause the tension to be applied to the material of the unit between the winding roller and the or each tensioning roller.
US14/420,692 2012-08-10 2013-08-08 Compression apparatus and method Abandoned US20150210498A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1214305.3 2012-08-10
GB1214305.3A GB2504768B (en) 2012-08-10 2012-08-10 Compression apparatus and method
PCT/GB2013/052129 WO2014023973A1 (en) 2012-08-10 2013-08-08 Compression apparatus and method

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US20150210498A1 true US20150210498A1 (en) 2015-07-30

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US14/420,692 Abandoned US20150210498A1 (en) 2012-08-10 2013-08-08 Compression apparatus and method

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US (1) US20150210498A1 (en)
EP (1) EP2882654B1 (en)
CN (1) CN105408214A (en)
GB (1) GB2504768B (en)
WO (1) WO2014023973A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170311680A1 (en) * 2010-09-10 2017-11-02 Harrison Spinks Beds Ltd Resilient pad for footwear
US20190290015A1 (en) * 2015-06-22 2019-09-26 Zeplus, Llc Pocketed foam systems and methods

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11845651B2 (en) * 2019-05-14 2023-12-19 Nv Bekaert Sa Spool of pocketed springs

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US2114008A (en) * 1933-10-05 1938-04-12 Moore Co Spring-packing machine
US4109443A (en) * 1976-01-29 1978-08-29 Reeves Brothers, Inc. Method and apparatus for forming convolute foam package
US4365767A (en) * 1981-02-02 1982-12-28 Benthimere Floyd D Apparatus for laminating and coiling insulation blankets
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US1915264A (en) * 1930-11-15 1933-06-20 Karpen & Bros S Feed mechanism for spring inserting machines
US2114008A (en) * 1933-10-05 1938-04-12 Moore Co Spring-packing machine
US4109443A (en) * 1976-01-29 1978-08-29 Reeves Brothers, Inc. Method and apparatus for forming convolute foam package
US4365767A (en) * 1981-02-02 1982-12-28 Benthimere Floyd D Apparatus for laminating and coiling insulation blankets
US4711067A (en) * 1984-02-03 1987-12-08 Giuliano Magni Method of packaging a single mattress to a small size to be conveniently carried
US6718726B1 (en) * 2001-10-09 2004-04-13 Dreamwell Ltd. Method and apparatus for storing and transporting strings of pocketed coils
US7100862B2 (en) * 2003-09-03 2006-09-05 Ottawa Fibre, Inc. Roll-up machine and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170311680A1 (en) * 2010-09-10 2017-11-02 Harrison Spinks Beds Ltd Resilient pad for footwear
US20190290015A1 (en) * 2015-06-22 2019-09-26 Zeplus, Llc Pocketed foam systems and methods
US11019936B2 (en) * 2015-06-22 2021-06-01 Zeplus, Llc Pocketed foam systems and methods

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Publication number Publication date
CN105408214A (en) 2016-03-16
EP2882654B1 (en) 2016-09-28
GB201214305D0 (en) 2012-09-26
GB2504768A (en) 2014-02-12
WO2014023973A1 (en) 2014-02-13
EP2882654A1 (en) 2015-06-17
GB2504768B (en) 2017-02-08

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