Compartmentalized Springs Patents (Class 5/655.8)
  • Patent number: 11109686
    Abstract: A pocketed spring assembly comprises parallel strings, each string joined to at least one adjacent string. At least some of the strings have springs of different gauge wire and some of the pockets of the strings having springs of different gauge wire are spliced together. At least some of the strings have springs of different geometries and some of the pockets of the strings having springs of different geometries are spliced together. At least some strings may have end sections with springs different than a middle section therebetween, the springs of the end sections being firmer than the springs of the middle section.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: September 7, 2021
    Assignee: L&P Property Management Company
    Inventors: Guido Eigenmann, Darrell A. Richmond, Bernhard Bauer, Urs Liechti, Andreas Meier
  • Patent number: 11103085
    Abstract: An inclined pocketed spring string (4) and a pocketed spring bed core (3). The inclined pocketed spring string (4) comprises a plurality of pocketed individual springs (1) connected at intervals. Each pocketed individual spring (1) comprises a fabric (11) and an individual spring (12) packaged in the fabric (11). The individual springs (12) in the pocketed spring string (4) are entirely or partially inclined in the fabrics (11) in an inclined manner. The inclined pocketed spring string (4) and the pocketed spring bed core (3) of the present invention, as compared with the pocketed spring bed core of the same size, can effectively decrease the number of springs used and reduce manufacturing costs.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: August 31, 2021
    Assignee: GUANGZHOU LIANROU MACHINERY AND EQUIPMENT CO., LTD.
    Inventor: Zhiming Tan
  • Patent number: 11103082
    Abstract: Mattress assemblies include a hybrid posture support system that provide an end user with improved posture support during use, among other advantages. The hybrid posture support system includes a top foam layer including first and second foam portions that are spaced apart and generally correspond to a head/shoulder region and a foot region, respectively, a pocketed microcoil array underlying the top foam layer that is intermediate the first and second foam portions; and an underlying foam layer. The hybrid posture support system can be used in any mattress assembly including mattresses having a coil spring innercore or a foam innercore.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: August 31, 2021
    Assignee: DREAMWELL, LTD.
    Inventors: Raheel Sadiq, Richard F. Gladney
  • Patent number: 11033115
    Abstract: A posturized comfort layer for a bedding or seating product has different sections of different firmness due to different pocketed mini coil springs within the sections. The springs may be individually pocketed between two sheets of non-woven polypropylene fabric joined with circular or rectangular weld seams. Regardless of the shape of the weld seams, the different firmness of the different sections of the comfort layer may be due to different mini coil springs contained in the pockets. In some embodiments, all pockets may have the same spring and the springs contained in different size weld seams to create pockets of different heights.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: June 15, 2021
    Assignee: L&P Property Management Company
    Inventors: Jason V. Jewett, Randall L. Nichols, Shaw F. Robertson
  • Patent number: 10973340
    Abstract: A spring mattress is disclosed, comprising a plurality of interconnected coil springs enclosed in casings, thereby forming a pocket spring mattress. For at least one of the springs, the casing portions arranged at the ends of the spring being moved towards each other, through the spring, and interconnected with the aid of connecting means, such as a weld. Further, the casing portions at the ends of the spring comprise an opening through the spring. Hereby, the casing forms a toroid or doughnut shape enclosing the spring.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 13, 2021
    Assignee: Starsprings AB
    Inventor: Lennart Hegg
  • Patent number: 10849429
    Abstract: The present disclosure provides a support device including a body interface layer resting against a user's body, a core adjacent the body interface layer with a plurality of independently acting micro coils surrounded by an enclosure layer, a stabilizing layer more rigid than the enclosure layer and the body interface layer, and an outer layer adjacent the stabilizing layer and which rests against an external surface such as a seat back when the device is in use. The body interface layer includes a curvilinear or parabolic profile with its inflection point toward a central region of the device and tapering toward lateral ends thereof. The body interface layer is thickest toward its intermediate portion which aligns with a central row of the spiral biasing devices, the body interface layer thinner outer intermediate regions aligning with outer spiral biasing device rows, providing for a consistently distributed pressure against the body.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: December 1, 2020
    Inventor: Mohsen Edalati
  • Patent number: 10813462
    Abstract: A comfort layer for a bedding or seating product has slow-acting pockets characterized by the individual mini coil springs of the comfort layer being pocketed with either semi-impermeable or impermeable fabric. Each weld seam joining opposed plies of fabric around each of the coil springs of the comfort layer may be segmented, allowing air to flow between the segments, thereby increasing the luxury “feel” of the comfort layer. The method of making the comfort layer includes compressing the mini coil springs and creating pockets with a welding horn and an anvil.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: October 27, 2020
    Assignee: L&P Property Management Company
    Inventor: Austin G. Long
  • Patent number: 10743675
    Abstract: Disclosed is a pillow comprising a plurality of pocket springs each comprising a coil spring and a pocket. Each of the pockets comprise a top portion and a bottom portion. Each of the pockets are formed from a continuous top piece of fabric attached to a continuous bottom piece of fabric to form a bond having a plane perpendicular to the longitudinal axis of each coil spring. The pillow further comprises an attachment layer comprising a top portion comprising an inner and outer surface. The pillow further comprises a plurality of first cushion elements engaged with the outer surface of the top portion of the attachment layer. The inner surface of the top portion of the attachment element is engaged with the top portion of the pockets of the pocket springs such that each of the first cushion elements act only upon one of the pocket springs.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 18, 2020
    Assignee: SLEEPOVATION LLC
    Inventor: Richard Codos
  • Patent number: 10426274
    Abstract: A bedding or seating product comprises a pocketed spring assembly comprising a plurality of parallel strings of individually pocketed springs. The strings of springs may extend from head-to-foot or side-to-side of the product. Adjacent individually pocketed springs are separated from each other by at least one separating seam. Each of the separating seams comprises a branched end portion.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: October 1, 2019
    Assignee: L&P Property Management Company
    Inventors: Niels S. Mossbeck, Darrell A. Richmond
  • Patent number: 10334957
    Abstract: A mattress arrangement, such as a bed arrangement, is disclosed, comprising an upper mattress and optionally an lower mattress. The mattresses are preferably pocket spring mattresses. A support structure is arranged beneath the upper mattress, and comprises at least one flexible elongate element arranged to extend between two holding elements arranged at opposite sides of at least one variable zone in the bed arrangement. A retraction device is further arranged to control the slack of said flexible elongate element(s) by controlling the length of the flexible elongate element(s) being provided between the holding elements. Hereby, the height and/or firmness of the bed arrangement is controlled in the variable zone(s).
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: July 2, 2019
    Assignee: STARSPRINGS AB
    Inventors: Kenneth Edling, Bengt Häger, Nils Eric Stjerna
  • Patent number: 10076193
    Abstract: A pocketed spring assembly comprises a plurality of parallel strings of individually pocketed springs. Each string is joined to at least one adjacent string. Each string has first and second opposed plies of fabric and a plurality of pockets formed along a length of the string by transverse segmented seams joining the plies. Gaps between the segments of the seams allow air to pass into and out of the pockets despite the fabric being impermeable to airflow through the fabric. The size of the gaps determines the firmness or “feel” of the pocketed spring assembly or portion thereof.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: September 18, 2018
    Assignee: L&P Property Management Company
    Inventor: Austin G. Long
  • Patent number: 10034553
    Abstract: A pocketed spring assembly comprises a plurality of parallel strings of individually pocketed springs. Each string is joined to at least one adjacent string. Each string has first and second opposed plies of fabric and a plurality of pockets formed along a length of the string by transverse segmented seams joining the plies. Gaps between the segments of the seams allow air to pass into and out of the pockets despite the fabric being impermeable to airflow through the fabric. The size of the gaps determines the firmness or “feel” of the pocketed spring assembly or portion thereof.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: July 31, 2018
    Assignee: L&P Property Management Company
    Inventor: Austin G. Long
  • Patent number: 9968203
    Abstract: A bedding or seating product comprises a pocketed spring assembly comprising a plurality of parallel strings of individually pocketed springs. The strings of springs may extend from head-to-foot or side-to-side of the product. Adjacent individually pocketed springs are separated from each other by at least one separating seam. Each of the separating seams comprises a branched end portion.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: May 15, 2018
    Assignee: L&P Property Management Company
    Inventors: Niels S. Mossbeck, Darrell A. Richmond
  • Patent number: 9775442
    Abstract: A bedding or seating product comprises a pocketed spring assembly comprising a plurality of parallel strings of individually pocketed springs. The strings of springs may extend from head-to-foot or side-to-side of the product. Adjacent individually pocketed springs are separated from each other by at least one separating seam. Each of the separating seams comprises a pair of Y-shaped or U-shaped seams which may be joined together or spaced apart.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: October 3, 2017
    Assignee: L&P Property Management Company
    Inventors: Niels S. Mossbeck, Darrell A. Richmond
  • Patent number: 9603460
    Abstract: Systems and methods include a spring-coil assembly having non-linear load-deflection characteristics that are substantially similar to foam. In particular, the systems and methods described herein include a first set of encased springs that are in a partially compressed state and a second set of shorter springs. These two sets of springs may be arranged in alternating rows such that the resulting spring-coil assembly displays non-linear load-deflection characteristics similar to foam.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: March 28, 2017
    Assignee: DREAMWELL, LTD.
    Inventors: Michael S. DeFranks, Rahul Kirtikar
  • Patent number: 9427090
    Abstract: A bedding or seating product comprises a pocketed spring assembly comprising a plurality of parallel strings of individually pocketed springs. The product may have individual inserts between adjacent strings of springs. Adjacent individually pocketed springs are separated from each other by at least one separating seam. Each of the separating seams comprises a pair of Y-shaped or U-shaped seams which may be joined together or spaced apart.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: August 30, 2016
    Assignee: L&P Property Management Company
    Inventors: Niels S. Mossbeck, Darrell A. Richmond
  • Patent number: 9386861
    Abstract: A spring assembly includes telescopically adjustable inner and outer members biased in an extension direction by a coil spring. A preload member is provided to apply a compression preload to the coil spring. The preload member can eliminate stickiness and the popping sound that are drawbacks of the prior art, and the fabric sleeve also provides general noise reduction when the spring assembly changes length.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: July 12, 2016
    Assignee: OTIS BED MANUFACTURING COMPANY, INC.
    Inventor: John K. Roma
  • Patent number: 9345334
    Abstract: A bedding or seating product comprises a pocketed spring assembly comprising a plurality of parallel strings of individually pocketed springs. The strings of springs may extend from head-to-foot or side-to-side of the product. Adjacent individually pocketed springs are separated from each other by at least one separating seam. Each of the separating seams comprises a pair of Y-shaped or U-shaped seams which may be joined together or spaced apart.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: May 24, 2016
    Assignee: L&P Property Management Company
    Inventors: Niels S. Mossbeck, Darrell A. Richmond
  • Patent number: 8978183
    Abstract: A pocketed spring assembly comprises a plurality of parallel strings of springs, each string joined to an adjacent string, each string comprising first and second opposed plies of fabric and a plurality of pockets formed along a length of the string by transverse seams joining the first and second plies, and at least one spring positioned in each pocket. At least one said string has a single spring in one pocket and a pair of nested springs in an adjacent pocket in alternating fashion along the length of the string, the pair of nested springs having a taller spring and a shorter spring. A portion of each transverse seam forming the adjacent pockets of the at least one string is divided from an upper surface of the at least one string downwardly so as to partially separate the adjacent pockets.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: March 17, 2015
    Assignee: L&P Property Management Company
    Inventors: Darrell A. Richmond, Thomas W. Wells
  • Patent number: 8857799
    Abstract: Encased coil units with advance conforming properties have various interconnections and structures between individually encased or wrapped coils. In the various embodiments, encasement structures between coils such as closure or attachment of sheet material or fabric, which encase the coils, are configured to allow and enhance independent movement of coils with respect to adjacent coils and remote coils of the unit. Modifications in the sheet material or fabric which encases the coils include variations in the points of connection or disconnection between adjacent coils, proximate to top ends of the coils to allow more freedom of movement of the top or upper ends of the coils and with respect to adjacent coils, and to reduce load transfer or cratering of the coil springs about the locus of the force vector.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: October 14, 2014
    Assignee: Sealy Technology, LLC
    Inventor: Steven Tyree
  • Patent number: 8590082
    Abstract: A mattress core including an array of strings of pocket springs extending in parallel across the mattress core; and a fastener coupling the array of strings of pocket springs together, wherein said array of strings of pocket springs includes single strings of pocket springs and double strings of pocket springs, each double string of said double strings of pocket springs including a superior string of pocket springs and an inferior string of pocket springs.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: November 26, 2013
    Assignee: Mantzis Holdings Pty Ltd.
    Inventor: George Mantzis
  • Patent number: 8266745
    Abstract: Spring cushions (10) having slow-acting pocketed spring cores (12) characterized by the individual springs of the cores (12) being pocketed within semi-impermeable fabric material and a method of making such pocketed spring cores (12). Fill material, such as pieces, strands or elements of foam or fiber is located inside at least some of the pocketed springs to reduce noise.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: September 18, 2012
    Assignee: L&P Property Management Company
    Inventor: Niels S. Mossbeck
  • Patent number: 8250689
    Abstract: The support characteristics within a foam mattress body may be varied by inserting reinforcements into channels cut or otherwise formed within the foam.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: August 28, 2012
    Assignee: Dreamwell, Ltd.
    Inventor: Richard F. Gladney
  • Publication number: 20120131752
    Abstract: A modular supporting element has a supporting surface for a user and includes a plurality of elastic modules, suitable for being deformed according to a direction substantially perpendicular to the supporting surface of the user. Each module has a side surface and an upper portion, wherein the modules are arranged juxtaposed to each other with the side surfaces substantially in contact or with the side surfaces at such a distance as not to prevent contact between one module and another during the elastic deformation movement. The modules have anti-friction surfaces arranged in a part of the side surface of the modules in such a way as to prevent interferences by friction between one module and another. The modular supporting element is made up of a plurality of modules with different rigidity from area to area without any appreciable influence between one module and another.
    Type: Application
    Filed: July 29, 2009
    Publication date: May 31, 2012
    Applicant: Technogel Italia S.R.L.
    Inventor: Matteo Mason
  • Patent number: 8176589
    Abstract: A spring mattress is disclosed including a plurality of strings interconnected side by side, each string including a plurality of continuous casings and each casing including a coil spring. Further, in at least one embodiment, at least one of the casings in at least one of the strings includes a plurality of stretch openings into the interior of the casing, wherein at least some of said stretch openings are displaced in relation to each other in a lengthwise direction of the spring. At least one embodiment of the present invention also relates to a method and a device for manufacturing of such a mattress, as well as to a bed adapted for such a mattress.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: May 15, 2012
    Assignee: Stjernfjadrar AB
    Inventors: Nils Eric Stjerna, Kenneth Edling
  • Patent number: 8099811
    Abstract: A spring assembly including a helical coil formed from a multi-strand cord.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: January 24, 2012
    Assignee: Dreamwell, Ltd.
    Inventors: Richard F. Gladney, Bernard W. Kuchel, Michael S. DeFranks
  • Patent number: 8087114
    Abstract: A spring mattress includes a plurality of strings interconnected side by side, each string including a continuous casing material with a plurality of pockets, said pockets being defined by at least one longitudinal connecting line extending parallel to the longitudinal direction of the string and a plurality of transverse connecting lines extending transversely to the longitudinal direction of the string, and coil springs arranged in the pockets of the string. For at least one of the springs, casing material portions arranged at the ends of the spring are moved towards each other, through the spring, and connected to each other. The connecting lines are arranged at the side of the springs and, thus, between neighboring springs. The interconnected casing material portions are thus at the ends of the springs essentially free of other connections.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: January 3, 2012
    Assignee: Stjernfjädrar AB
    Inventor: Andreas Lundevall
  • Patent number: 8011046
    Abstract: A spring mattress for beds is disclosed. In at least one embodiment, the spring mattress includes a plurality of strings which are interconnected side by side and include a continuous casing material with a plurality of separate pockets with coil springs enclosed therein. Moreover the casing material for at least some pockets is at least substantially airtight, thus providing a resistance to air being pressed out when the springs of the mattress are loaded, which, when subjected to a uniform load during a transition period, results in a gradually increasing depression of the spring to its depressed state. This results in a comfortable mattress, into which the user sinks gradually and which thus is comfortable and safe and allows the user to move easily. A corresponding method and device for manufacturing such a mattress are also described.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: September 6, 2011
    Assignee: Stjernfjadrar AB
    Inventor: Nils Eric Stjerna
  • Publication number: 20110197367
    Abstract: Spring cushions (10) having slow-acting pocketed spring cores (12) characterized by the individual springs of the cores (12) being pocketed within semi-impermeable fabric material and a method of making such pocketed spring cores (12). Fill material, such as pieces, strands or elements of foam or fiber is located inside at least some of the pocketed springs to reduce noise.
    Type: Application
    Filed: April 26, 2011
    Publication date: August 18, 2011
    Applicant: L&P PROPERTY MANAGEMENT COMPANY
    Inventor: Niels S. Mossbeck
  • Patent number: 7979935
    Abstract: An innerspring assembly includes a plurality of first springs arranged side-by-side in axis-parallel relationship and wound in the form of a helix. Several first springs which are arranged behind one another in a row define a spring strand. An edge reinforcement is formed by second springs placed on at least two opposite borders of the innerspring assembly, with each second spring being connected with two first springs of an adjacent spring strand.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: July 19, 2011
    Assignee: AGRO Holding GmbH
    Inventor: Wolfgang Grothaus
  • Publication number: 20110041252
    Abstract: Systems and methods include a spring-coil assembly having non-linear load-deflection characteristics that are substantially similar to foam. In particular, the systems and methods described herein include a first set of encased springs that are in a partially compressed state and a second set of shorter springs. These two sets of springs may be arranged in alternating rows such that the resulting spring-coil assembly displays non-linear load-deflection characteristics similar to foam.
    Type: Application
    Filed: August 19, 2010
    Publication date: February 24, 2011
    Applicant: Dreamwell, Ltd.
    Inventors: Michael S. DeFranks, Rahul Kirtikar
  • Patent number: 7748065
    Abstract: A spring mattress is described, including a plurality of strings interconnected side by side. Each string includes a plurality of continuous casings and, enclosed therein, coil springs. Moreover, between at least some of the springs in at least one of the strings a slot is arranged which opens towards the upper or lower side of the mattress. It is preferred for the springs between which the slot is arranged to be separated with an intermediate separation distance, which separation distance exceeds about 10% of the diameter of the largest turn of the adjoining springs. In addition, it is preferred for the casing portions to be arranged at the ends of the spring to be moved towards each other, through the spring, and connected to each other by at least one connecting device.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: July 6, 2010
    Assignee: Stjernfjadrar AB
    Inventor: Kenneth Edling
  • Patent number: 7644461
    Abstract: This invention relates to a foam integrated innerspring mattress and method of manufacture wherein a flexible polyurethane foam is adhered onto the top and bottom of individually wrapped pocket innersprings, and additional polyurethane foam is molded onto the sides of the mattress.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: January 12, 2010
    Assignee: Zinus, Inc.
    Inventor: Youn Jae Lee
  • Patent number: 7168117
    Abstract: A spring assembly including a helical coil formed from a multi-strand cord.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: January 30, 2007
    Assignee: Dreamwell Ltd.
    Inventors: Richard F. Gladney, Bernhard W. Kuchel
  • Patent number: 6944899
    Abstract: A mattress construction with a multi-strand coil spring is disclosed. The multi-strand coil spring can be designed with the same performance characteristic as a conventional solid wire coil spring, but at a lower manufacturing and material cost.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: September 20, 2005
    Assignee: Dreamwell, Ltd.
    Inventor: Richard F. Gladney
  • Patent number: 6898813
    Abstract: An innerspring assembly includes a first plurality of interconnected strings of pocketed first springs. A second plurality of strings of springs is provided and so incorporated in the innerspring assembly that at least one string of springs of the second plurality is placed between two neighboring strings of the first plurality of interconnected springs, wherein the second springs have a diameter which is smaller than a diameter of the first springs.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: May 31, 2005
    Assignee: AGRO Federkernproduktions GmbH
    Inventor: Wolfgang Grothaus
  • Patent number: 6883196
    Abstract: An innerspring assembly comprising a plurality of strips of pocketed coil springs, each including axially interconnected spring pockets having a pocket height. The strips of pocketed coil springs are comprised of overlapping plies of material adjoined together by axially offset cross seams extending generally along the pocket height to define the spring pockets, with each spring pocket containing a coil spring. In one embodiment, the overlapping plies of at least two strips are coupled together by connecting seams extending along the pocket height and axially offset from the cross seams. In another embodiment, the overlapping plies of at least three strips are interconnected. In another embodiment, overlapping edges of the plies of material are adjoined by a closing weld seam positioned adjacent an end surface of the pocketed coil springs, with the overlapping plies of material of at least two strips interconnected by connecting welds positioned along the pocket height.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: April 26, 2005
    Assignee: Barber Manufacturing Company, Inc.
    Inventor: James R. Barber
  • Patent number: 6862763
    Abstract: A bedding or seating product comprising a spring assembly made up of a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a row of interconnected pocketed coil springs. Selected pockets of fabric are shorter than adjacent pockets, so coil springs in the selected pockets are under a greater load than adjacent coil springs. In one preferred embodiment, every other pocket is under a greater load than the adjacent pockets, resulting in a checkerboard arrangement in at least one area of the product.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: March 8, 2005
    Assignee: L&P Property Management Company
    Inventors: Niels S. Mossbeck, Terry W. Moser
  • Patent number: 6829798
    Abstract: A bedding or seating product comprises a pocketed spring assembly having a plurality of parallel strings of springs joined to each other. Each of said strings of springs comprises a row of interconnected pockets, each of the pockets containing at least one spring encased in a fabric pocket and with more than one line of attachment between at least selected adjacent pockets. At least one spacer strip or at least one scrim sheet extends between the interconnected pockets of at least one string of springs and is secured thereto to provide stability in the pocketed spring assembly.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: December 14, 2004
    Assignee: L&P Property Management Company
    Inventor: Thomas J. Wells
  • Patent number: 6826796
    Abstract: A bedding or seating product is provided comprising a pocketed spring assembly made up of a plurality of parallel strings of springs joined to each other. Each string of springs comprises a row of interconnected pocketed springs. The pockets of fabric are vertically shortened with seams to create pockets of the same height, each containing a spring. The springs are vertically offset from one another due to the location of the seams. Upon an initial load, only some of the pocketed springs are compressed.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: December 7, 2004
    Assignee: L&P Property Management Company
    Inventor: Niels S. Mossbeck
  • Patent number: 6804847
    Abstract: A pocketed spring core includes a plurality of springs which are arranged sequentially in rows to form parallel adjoining spring strands, wherein each of the springs is supported in a pocket made of flexible material. A first cover sheet is placed over and connected to the spring strands, and a second cover sheet is placed under the spring strands and connected thereto. At least one of the first and second cover sheets has predetermined regions which are opened in a direction transversely to a longitudinal extension of the spring strands by a plurality of slots to thereby form strips.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: October 19, 2004
    Assignee: Agro Federkernproduktions GmbH
    Inventor: Wolfgang Grothaus
  • Publication number: 20040128771
    Abstract: A bedding or seating product comprises a pocketed spring assembly having a plurality of parallel strings of springs joined to each other. Each of said strings of springs comprises a row of interconnected pockets, each of the pockets containing at least one spring encased in a fabric pocket and with more than one line of attachment between at least selected adjacent pockets. At least one spacer strip or at least one scrim sheet extends between the interconnected pockets of at least one string of springs and is secured thereto to provide stability in the pocketed spring assembly.
    Type: Application
    Filed: January 8, 2003
    Publication date: July 8, 2004
    Applicant: L&P Property Management Company
    Inventor: Thomas J. Wells
  • Publication number: 20040103479
    Abstract: A bedding or seating product comprising a spring assembly made up of a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a row of interconnected pocketed coil springs. Selected pockets of fabric are shorter than adjacent pockets, so coil springs in the selected pockets are under a greater load than adjacent coil springs. In one preferred embodiment, every other pocket is under a greater load than the adjacent pockets, resulting in a checkerboard arrangement in at least one area of the product.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 3, 2004
    Applicant: L&P Property Management Company
    Inventors: Niels S. Mossbeck, Terry W. Moser
  • Patent number: 6698166
    Abstract: An exemplary pocket spring assembly comprises a plurality of elongate fabric tubes disposed adjacent each other. Each fabric tube has a plurality of pockets, with at least some of the pockets of adjacent fabric tubes being welded together at midpoints on the adjacent pocket. Further, a spring is disposed in each of the pockets.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: March 2, 2004
    Assignee: Springquilt Industries Ltd.
    Inventor: Milton Zysman
  • Patent number: 6694554
    Abstract: A resilient structure having a fiber batt with coil springs disposed therein and respective coil spring paths. Each of the coil spring paths extending from a respective coil spring and having a profile similar to a cross-sectional profile of the respective coil spring taken in a plane parallel to a length of the coil spring. A method is also provided for heating the coil springs and inserting the coil springs into a side wall of the fiber batt to produce the coil spring paths that have a profile similar to a cross-sectional profile of the respective coil spring taken in a plane parallel to a length of the coil spring.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: February 24, 2004
    Assignee: L&P Property Management Company
    Inventor: Larry I Bullard
  • Publication number: 20040025256
    Abstract: A multilayered bedding or seating product comprising a spring core made up of an upper layer and a lower layer of pocketed coil springs. Each layer comprises a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a row of interconnected pocketed coil springs. The strings of springs of the upper and lower layers may be secured to at least one scrim sheet therebetween.
    Type: Application
    Filed: February 10, 2003
    Publication date: February 12, 2004
    Applicant: L&P Property Management Company
    Inventor: Niels S. Mossbeck
  • Publication number: 20040025257
    Abstract: A spring mattress comprising a plurality of interconnected coil springs (1) enclosed in covers (2), known as a pocket-spring mattress, is described, wherein at least two springs that are located adjacent to one another are spaced apart by an interjacent separation distance (SA), said separation distance exceeding approximately 10% of the diameter of the largest one of the spiral turns of the adjacent springs. Also described is a method of manufacturing a corresponding mattress.
    Type: Application
    Filed: July 16, 2003
    Publication date: February 12, 2004
    Inventor: Robert Ahlqvist
  • Patent number: 6681428
    Abstract: A pocketed coil spring unit and associated method of assembly combines top and bottom sheets with bonding of the sidewalls of adjacent rows of pocketed coil springs. With this combination, a posturized spring unit is produced in a commercially efficient manufacturing process. The top and bottom sheets extend perpendicularly to the rows of pocketed coil springs and the adjacent rows of pocketed coil springs are bonded on the sidewalls of the fabric pockets in the absence of the top and bottom sheets. As such, the spring unit can be customized for posturization to provide a firmer supporting foundation at the locations of the top and bottom sheets and a more individualized flexible construction in the regions of the inter-row sidewall bonding.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: January 27, 2004
    Assignee: L&P Property Management Co.
    Inventor: Thomas J. Wells
  • Patent number: 6668406
    Abstract: A spring unit (2) for incorporation into a bed, divan bed, mattress, or other upholstery unit comprises a first spring (4) and a second spring located (6) within said first spring (4). The first spring (4) may be a pocketted spring, or the second spring may be a pocketted spring, or both of said springs may be pocketted springs, the pockets of said pocketted springs being composed of a woven material and/or a synthetic material.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: December 30, 2003
    Assignee: A Harrison (Bedding) Limited
    Inventors: Peter Douglas Spinks, Simon Paul Spinks
  • Publication number: 20030217413
    Abstract: A pocketed spring core includes a plurality of springs which are arranged sequentially in rows to form parallel adjoining spring strands, wherein each of the springs is supported in a pocket made of flexible material. A first cover sheet is placed over and connected to the spring strands, and a second cover sheet is placed under the spring strands and connected thereto. At least one of the first and second cover sheets has predetermined regions which are opened in a direction transversely to a longitudinal extension of the spring strands by a plurality of slots to thereby form strips.
    Type: Application
    Filed: May 13, 2003
    Publication date: November 27, 2003
    Inventor: Wolfgang Grothaus