With Microporous Material Patents (Class 5/939)
  • Patent number: 8950028
    Abstract: An infection control bedding product such as a pillow, duvet, mattress, cushion or such like having a sealed cover and having a deformable filling material, may comprise a liquid impermeable air permeable microbial barrier vent. The vent includes an oleophobic expanded polytetrafluoroethylene (PTFE) membrane extending past the perimeter of the aperture and a nonwoven layer extending past the perimeter of the aperture. A gasket may be bonded to the PTFE membrane, the nonwoven layer and the cover to form a liquid impermeable seal rendering the infection control bedding product liquid impermeable.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: February 10, 2015
    Assignee: Pneuma Pure I.P. Limited
    Inventors: William Navan, David Woolfson
  • Patent number: 8869329
    Abstract: A mattress for use in institutions, such as correctional facilities, detention centers, rehabilitation centers, hospitals and the like, includes a core formed of a padding material and a translucent covering surrounding the core. The core is visible through the translucent covering, and the covering includes a translucent fabric having a rip stop pattern woven therein. One of the padding material and the translucent covering is impregnated with a color change composition. The color change composition is changeable from an initial color to an activated color. The activated color is visible through the translucent covering.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: October 28, 2014
    Assignee: MTJ American LLC
    Inventors: Timothy W. Shelby, Mark Kiser
  • Patent number: 8561233
    Abstract: A hermetically sealed infection control bedding product such as a pillow, duvet, mattress, cushion or such like having a sealed cover and having a resiliently deformable filling material, comprising a vent means in the cover, characterized in that the vent means comprises a filter medium including a filter membrane for the removal of particles of microbial size and wherein the filter medium also comprises a strengthening layer of material for providing mechanical strength to the filter medium whereby the filter medium allows air flow therethrough but is substantially impermeable to liquid while maintaining a barrier to particles of microbial size.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: October 22, 2013
    Assignee: Pneuma Pure I.P. Limited
    Inventors: William Navan, David Woolfson
  • Patent number: 8528134
    Abstract: A mattress encasement made of bug impervious fabric provides a zipper opening for removal of the mattress. A foam pad is stitched at an end of the zipper closure such that when the zipper is located at or near the end, a channel is provided to prevent or obstruct the escapement of bed bugs via the channel and out from a mattress encased by the mattress encasement.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: September 10, 2013
    Assignee: JAB Distributors, LLC
    Inventors: James A. Bell, Yueh-Jyh Chen, Ching-Yao Yeh
  • Patent number: 8516633
    Abstract: A mattress encasement with improved bed bug protection includes an encasement body configured to cover a mattress and a zipper disposed at an opening in the encasement body and movable between an open condition permitting insertion and removal of the mattress and a closed condition preventing bed bugs from traversing the zipper. The zipper has a zipper head and a zipper pull pivotable on the zipper head. A clasp is at least partly fixed to the encasement body. A hook-and-loop fastener is associated with the encasement body and the clasp for locking the zipper pull to the clasp with the zipper in the closed condition to prevent movement of the zipper head and opening of the zipper.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: August 27, 2013
    Assignee: Valley Forge Fabrics, Inc.
    Inventor: J. Michael Dobin
  • Patent number: 8429777
    Abstract: An improved encasement for a mattress which thwarts the escapement of bed bugs from a mattress through the encasement and which thwarts the encroachment of beg bugs through the encasement into the mattress. An elongated opening is provided in the encasement which is selectively closed by a zipper associated therewith. The encasement includes a flap secured to the lower side wall portion of a side of the encasement which is positioned inwardly of the zipper for retarding or preventing the escapement of bed bugs through the zipper. Hook and loop fasteners are also provided at the end location for further preventing the escapement of bed bugs from the mattress through the encasement and preventing the encroachment of beg bugs into the mattress through the encasement.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: April 30, 2013
    Assignee: GBS Enterprises, LLC
    Inventor: Michael A. Svoboda
  • Patent number: 8307480
    Abstract: An enclosure for preventing certain organisms from escaping from an item susceptible to infestation into the surrounded environment and for preventing certain organisms from entering the item susceptible to infestation from the surrounding environment. The enclosure is defined by a flexible sheet material defining an interior space. The enclosure comprises a slit-like opening formed in the flexible sheet material through which an item susceptible to infestation can be inserted into the interior space defined by the enclosure.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: November 13, 2012
    Assignee: London Luxury, LLC
    Inventor: Ani Tirpan
  • Patent number: 7552489
    Abstract: A mattress encasement made of bug impervious fabric provides a zipper opening for removal of the mattress. A foam pad is stitched at an end of the zipper closure such that when the zipper is located at or near the end, a channel is provided to prevent or obstruct the escapement of bed bugs via the channel and out from a mattress encased by the mattress encasement.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: June 30, 2009
    Assignee: JAB Distributors, LLC
    Inventors: James Bell, Yueh-Jyh Chen, Ching-Yao Yeh
  • Publication number: 20090083908
    Abstract: Hygienic, antibacterial, and anti-allergenic pillows or pillow encasings with a covering are disclosed. The covering comprises a fabric coated with a monolithic coating and a filter. The monolithic coating prevents moisture from entering the pillow and allergens from leaving the pillow or pillow encasing. The filter is operative to allow air to egress and ingress the pillow covering.
    Type: Application
    Filed: January 4, 2007
    Publication date: April 2, 2009
    Applicant: National Allergy Supply, Inc.
    Inventor: John Fry
  • Patent number: 6964074
    Abstract: An anti-microbial/-allergenic sleep set and process of forming thereof is provided and comprises a mattress and box spring, each having an allergen-impermeable barrier layer incorporated within. The mattress comprises a support apparatus, a top and bottom panel, first and second flanges, a border, a foam layer, and a barrier layer. The border is positioned around the support apparatus, and is attached to the top and bottom panels. The foam layer, which can comprise a latex emulsion, is positioned between the support apparatus and the top and bottom panels. The barrier layer comprises a material configured to be impermeable by allergens, and is attached at its outer periphery to the interior facing sides of the top panel, the bottom panel, and the border.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: November 15, 2005
    Assignee: Mattress Development Company, LLC
    Inventor: Stuart Scott Carlitz
  • Publication number: 20030172458
    Abstract: The present invention relates to a disposable covering sheet which is moisture vapour permeable and liquid impermeable and has odour control properties and, if desired, also active agent releasing properties. The disposable covering sheet comprises at least a moisture vapour permeable layer and a liquid impermeable but moisture vapour permeable film layer of thermoplastic compositions. The disposable covering sheet such as, for example, a mattress cover or a pillow cover gives a better comfort to the user by providing odour control properties and, if desired, also active agent releasing properties. The disposable covering sheet of the present invention can find a variety of applications wherein moisture vapour permeability and liquid imperviousness combined with specific odour control properties and preferably also active agent releasing properties are desirable.
    Type: Application
    Filed: March 28, 2003
    Publication date: September 18, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Lidia Bonfanti, Antonella Pesce, Philip Porter, Elisabetta Russo, Giuseppe Sirianni, Rafael Trujillo
  • Publication number: 20030163870
    Abstract: The present invention relates to a disposable covering sheet which is moisture vapour permeable and liquid impermeable and contains active agent or agents. The disposable covering sheet comprises at least a moisture vapour permeable layer and a liquid impermeable but moisture vapour permeable film layer of thermoplastic compositions. The disposable covering sheet such as, for example, a mattress cover or a pillow cover gives a better comfort to the user by providing active agent releasing properties. The disposable covering sheet of the present invention can find a variety of applications wherein moisture vapour permeability and liquid imperviousness combined with long lasting active agent releasing properties are desirable.
    Type: Application
    Filed: March 28, 2003
    Publication date: September 4, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Philip Porter, Elisabetta Russo, Giuseppe Sirianni, Rafael Trujillo
  • Publication number: 20030121101
    Abstract: Disposable covering sheet for bedding articles that is moisture vapour permeable and liquid impermeable and comprises at least a moisture vapour permeable fibrous layer and a liquid impermeable but moisture vapour permeable film layer of preferred thermoplastic compositions. Use of the disposable covering sheet as, for example, a mattress or pillow cover provides increased comfort to the user. The disposable covering sheet disclosed herein can be used in a variety of applications, particularly when the benefits of moisture vapour permeability, liquid imperviousness, disposability and increased in-use comfort are desired.
    Type: Application
    Filed: February 7, 2003
    Publication date: July 3, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Italo Corzani, Elisabetta Russo, Enrico Spina, Giovanni Carrara, Giuseppe Sirianni
  • Publication number: 20020178506
    Abstract: The present invention relates to a disposable mattress cover which is moisture vapour permeable and liquid impermeable and comprises an improved liquid impermeable formed structure having an enhanced moisture vapour permeability and comprising preferred thermoplastic compositions which can provide a better stability of the mattress cover in use. The disposable mattress cover of the present invention can find a variety of applications wherein moisture vapour permeability combined with liquid imperviousness are desirable, combined with stability in use.
    Type: Application
    Filed: June 7, 2002
    Publication date: December 5, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Italo Corzani, Elisabetta Russo
  • Patent number: 6363553
    Abstract: The allergen-inhibiting encasing for receiving objects contaminated with respirable fine and extremely fine dust, house dust, moulds and allergens, e.g. excretions of house dust mites, together with air, especially bedding and/or upholstery of all kinds, comprising at least a web of woven fabric or a nonwoven and a mechanical closure, such as a zip fastener, in a configuration blocking the passage of allergens and extremely fine particles. The encasing is characterized in that the web includes a fabric which is coated with polyurethane-acrylate copolymer foam and is equipped with increased density, by calendering, up to a degree of filtration of almost 100% for particles smaller than 1 &mgr;m. Also, the zip fastener is sealed on the inner face of the encasing by overlapping with a sealing strip comprising at least three plies of fabric.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: April 2, 2002
    Assignee: Lohmann GmbH & Co. KG
    Inventors: Falko Baumgärtel, Ulrich Vopel
  • Patent number: 6158070
    Abstract: A coverlet is disclosed for enclosing an air fluidizable section of a patient support surface. The air fluidizable section includes a diffuser board assembly for supporting a fluidizable medium, a side wall defining a boundary of the air fluidizable section and an air permeable top wall impervious to the fluidizable medium. The coverlet includes a sheet of material impervious to fluids and comprises a top portion configured to overlie the top wall of the air fluidizable section, and a side portion configured to overhang over the side wall of the air fluidizable section. The side portion of the coverlet includes at least one opening therein to permit air flowing through the air fluidizable section to escape.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: December 12, 2000
    Assignee: Hill-Rom, Inc.
    Inventors: Michael V. Bolden, Daniel A. Denson
  • Patent number: 6131221
    Abstract: A cushion pad has an upper layer, a middle layer, and a lower layer. The middle layer is disposed between the lower layer and the upper layer. The upper layer is made of an air-permeability fabric. The middle layer has two mixture layers, and a gauze fabric layer disposed between the mixture layers. The lower layer is made of a water-absorbing non-woven fabric.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: October 17, 2000
    Inventor: Shi-Hong Yang