Polytetrafluoroethylene Patents (Class 2/904)
  • Patent number: 10265199
    Abstract: The method for manufacturing a made-to-measure prosthetic sleeve from a thermoformable preform includes: providing a reduced positive mold corresponding to the copy of the shape of the stump of the residual limb reduced by 3 to 5% of all of the circumferences of the shape of the stump; providing a preform made from a thermoformable elastomer base, the preform presenting an open proximal end, a closed distal end, a uniform wall thickness and a hardness of more than 40 Shore A; placing the preform on the reduced positive mold to form a preform/mold assembly; shaping the preform by heating the preform/mold assembly to a temperature between 60° C. and 150° C.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: April 23, 2019
    Assignee: CHABLOZ COMPOSANTS
    Inventor: Pierre Chabloz
  • Patent number: 8256025
    Abstract: A vapor permeable retroreflective material for use on protective garments. The material may be formed in a non-continuous pattern that provides a high-level of retroreflective brightness, yet also provides adequate permeability to prevent exposure to trapped thermal energy and heated moisture. The non-continuous retroreflective pattern may include retroreflective regions and non-retroreflective regions arranged such that thermal decay through the protective garment is not substantially decreased in the regions corresponding to the retroreflective material. Rather, vapor permeation and thermal decay through the garment may be substantially the same as if the retroreflective material was not present.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: September 4, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Rino A. Feduzi, Robert L. Jensen, Jr., Jeanine M. Shusta
  • Patent number: 8015620
    Abstract: Vapor permeable retroreflective material for use on protective garments. The material may be formed in a non-continuous pattern that provides a high-level of retroreflective brightness, yet also provides adequate permeability to prevent exposure to trapped thermal energy and heated moisture. The non continuous retroreflective pattern may include retroreflective regions and non retroreflective regions arranged such that thermal decay through the protective garment is not substantially decreased in the regions corresponding to the retroreflective material. Rather, vapor permeation and thermal decay through the garment may be substantially the same as if the retroreflective material was not present.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: September 13, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Rino A. Feduzi, Robert L. Jensen, Jr., Jeanine M. Shusta
  • Patent number: 7600269
    Abstract: A vapor permeable retroreflective material for use on protective garments. The material may be formed in a non-continuous pattern that provides a high-level of retroreflective brightness, yet also provides adequate permeability to prevent exposure to trapped thermal energy and heated moisture. The non-continuous retroreflective pattern may include retroreflective regions and non-retroreflective regions arranged such that thermal decay through the protective garment is not substantially decreased in the regions corresponding to the retroreflective material. Rather, vapor permeation and thermal decay through the garment may be substantially the same as if the retroreflective material was not present.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: October 13, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Rino A. Feduzi, Robert L. Jensen, Jr., Jeanine M. Shusta
  • Patent number: 7162746
    Abstract: A non-terminated, multi-aperture body form-fitting rainwear is provided. In the rainwear, a first waterproof moisture vapor permeable hydrophobic layer couples to a first fabric layer. The first fabric layer faces the body and couples to a first side of the first waterproof moisture vapor permeable hydrophobic layer. The first waterproof moisture vapor permeable hydrophobic layer and first fabric layer are formable about a human body and are constructed and arranged with multiple apertures to accommodate, without termination, two or more human appendages. The rainwear may for example form a shirt, pant, underwear, long underwear and a one-piece body suit.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: January 16, 2007
    Inventor: Eric M. Reynolds
  • Patent number: 7107622
    Abstract: The disclosure describes vapor permeable retroreflective material for use on protective garments. The material may be formed in a non-continuous pattern that provides a high-level of retroreflective brightness, yet also provides adequate permeability to prevent exposure to trapped thermal energy and heated moisture. The non-continuous retroreflective pattern may include retroreflective regions and non-retroreflective regions arranged such that thermal decay through the protective garment is not substantially decreased in the regions corresponding to the retroreflective material. Rather, vapor permeation and thermal decay through the garment may be substantially the same as if the retroreflective material was not present.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: September 19, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Rino A. Feduzi, Robert L. Jensen, Jr., Jeanine M. Shusta
  • Patent number: 6931665
    Abstract: The disclosure describes vapor permeable retroreflective material for use on protective garments. The material may be formed in a non-continuous pattern that provides a high-level of retroreflective brightness, yet also provides adequate permeability to prevent exposure to trapped thermal energy and heated moisture. The non-continuous retroreflective pattern may include retroreflective regions and non-retroreflective regions arranged such that thermal decay through the protective garment is not substantially decreased in the regions corresponding to the retroreflective material. Rather, vapor permeation and thermal decay through the garment may be substantially the same as if the retroreflective material was not present.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: August 23, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Rino A. Feduzi, Robert L. Jensen, Jr., Jeanine M. Shusta
  • Patent number: 6745405
    Abstract: A well styled, single layer shell jacket is resistant to inclement conditions, yet possesses the various characteristics of conventionally comfortable clothing, and permits the stitching of emblems thereon without impairing waterproof and windproof characteristics. Superposed on the waterproof and windproof fabric of each sleeve and forming a pocket thereon is a patch. In the patch is a zipper or other closure. This closure, when opened, permits entry into the pocket and sewing of an emblem or the like on the packet without affecting the waterproof and windproof construction of the remainder of the jacket.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: June 8, 2004
    Assignee: Blauer Manufacturing Co., Inc.
    Inventors: Stephen J. Blauer, Mark A. Mordecai, Toufic G. Atallah
  • Patent number: 6490734
    Abstract: A well styled, single layer shell jacket is resistant to inclement conditions, yet possesses the various characteristics of conventionally comfortable clothing, and permits the stitching of emblems thereon without impairing waterproof and windproof characteristics. Optionally, a liner is attachable to the interior of the jacket without disturbing the functionality of the shell jacket. Superposed on the waterproof and windproof fabric of each sleeve and forming a pocket thereon is a superposed upper patch, which appears to be a continuation of the yoke and the edges of which are joined to the sleeve by seams of stitching. In the patch is a zipper or other closure. This closure, when opened, permits entry into the pocket and sewing of an emblem or the like on the patch without affecting the waterproof and windproof construction of the remainder to the jacket.
    Type: Grant
    Filed: January 6, 2002
    Date of Patent: December 10, 2002
    Assignee: Blauer Manufacturing Company, Inc.
    Inventors: Stephen J. Blauer, Mark A. Mordecai, Toufic G. Atallah
  • Patent number: 6336221
    Abstract: A well styled, single layer shell jacket is waterproof and windproof, yet possesses the various characteristics of conventionally comfortable clothing, and permits the stitching of emblems thereon without impairing waterproof and windproof characteristics. A seam of stitching joins each pair of the contiguous edges of adjacent sections of this jacket. Superposed on the waterproof and windproof fabric of each sleeve and forming a pocket thereon is a superposed upper patch, which appears to be a continuation of the yoke and the edges of which are joined to the sleeve by seams of stitching. In the patch is a zipper or other closure. This closure, when opened, permits entry into the pocket and sewing of an emblem or the like on the patch without affecting the waterproof and windproof construction of the remainder to the jacket. This closure, when closed, permits easy access to gloves, eye wear, medicines, or other items stored in the pocket.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: January 8, 2002
    Assignee: Blauer Manufacturing Company, Inc.
    Inventors: Stephen J. Blauer, Mark A. Mordecai, Toufic G. Atallah
  • Patent number: 6018819
    Abstract: A garment (20) for inhibiting relatively moving air from contacting a portion of a person wearing the garment. The garment (20) comprises a first panel (22) for inhibiting relative air movement contact against a portion of the body of the person. The first panel (22) includes a first fabric layer (62), a second fabric layer (64) and a first membrane (66) located between the first and second the first fabric layers. The first membrane (66) is water-resistant. The first panel (22) has an air permeability of not more than 3 CFM/ft.sup.2 and a moisture vapor transmission rate of at least 800 gm/m.sup.2 .multidot.day. The garment (20) also comprises a second panel (24) connectable with the first panel (22). The second panel (24) includes a third fabric layer (62a), a fourth fabric layer (64a) and a second membrane (66a) located between the third and fourth fabric layers. The second membrane (66a) is water-resistant. The second panel (24) has an air permeability of at least 6 CFM/f.sup.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: February 1, 2000
    Assignee: BHA Technologies, Inc.
    Inventors: James C. King, Frederic T. Wilson
  • Patent number: 5972449
    Abstract: Porous materials suitable for a variety of uses including waterproof/breathable fabrics, air filters, liquid filters, liquid/liquid separation membranes, vascular grafts, mechanical seals, etc. which comprises an intimate combination of about 50 to 99.9 wt % polytetrafluoroethylene polymer and about 0.1 to 50 wt % of a fluorinated organic polymer which is liquid under ambient conditions, such as the perfluoroether fluids, wherein the material has a microstructure characterized by nodes interconnected by fibrils.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: October 26, 1999
    Assignee: Donaldson Company, Inc.
    Inventor: Hoo Young Chung
  • Patent number: 5955175
    Abstract: A textile material having thermal image masking or suppression in the mid and far infra-red region without compromising the effectiveness of visual and near IR camouflage or comfort level, or the effectiveness, and mobility of a person. Specifically the invention is directed to an air permeable, moisture vapor transmissive, waterproof, heat reflecting material consisting essentially of at least one metallized microporous membrane, with an oleophobic coating over the metallized portions thereof. This membrane is laminated to at least one other layer or textile backing material such as woven, nonwoven or knitted nylon, polyester, cotton, silk, etc. or additional microporous layers, in which the metal in the metallized membrane forms a discontinuous layer on the surface and on the pore walls adjacent the surface of the microporous membrane.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: September 21, 1999
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Gregory D. Culler
  • Patent number: 5843057
    Abstract: The present invention is directed to film-nonwoven laminates incorporating stretch-thinned, breathable films onto which a pattern or network of adhesive areas is applied to improve durability and strength of the stretch-thinned film. The present invention has applicability in a wide variety of areas where strength, comfort, liquid impermeability and breathability are needed or desired, including without limitation, personal care absorbent articles, articles of clothing, roll goods and health care-related items.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: December 1, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Ann Louise McCormack
  • Patent number: 5572737
    Abstract: Two-piece padded skating shorts include a padded core shell and an outside shell releasably fastened to the padded core by first and second pairs of complementarily-formed fastening members at leg portions thereof. The padded core shell includes ball joint, thigh, hip, tail bone, kidney and buttocks pads, some of which include curved reinforced padding. The outside shell includes at least one pocket to store items therein. Waist portions of the core shell and the outside shell each include a belt sewn therein to secure the core shell and the outside shell to a wearer thereof.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: November 12, 1996
    Inventor: Steven F. Valice
  • Patent number: 5537688
    Abstract: An air isolation hand covering has a bladder consisting of a plurality of interconnected or independent inflation cells that is positioned between the hand and a hand-held tool or other vibrating object. The cells are oriented to permit easy bending of the hand covering in directions appropriate for grasping an object. The effectiveness of the bladder in reducing the vibration energy transmitted to the hand is a function of the shape and configuration of the bladder, the pressure in the bladder, the compressible fluid used, the volume of the bladder, and the grip force and push force used when clasping a tool or other object. The bladder can be filled with air or other fluid during the fabrication of the bladder or it can be inflated or deflated with a small pump and integral air valve connected to one of the air cavities.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: July 23, 1996
    Assignee: ErgoAir, Inc.
    Inventors: Douglas D. Reynolds, Thomas C. Jetzer
  • Patent number: 5532037
    Abstract: A collar connection device is provided for use with a garment having a double-layer collar, the device having a first functional layer strip connected to sections of the garment by openable closures and a second functional layer strip also connected to sections of the garment by additional openable closures and where the two functional layer strips are attached in a line by a waterproof adhesive seam.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: July 2, 1996
    Inventor: Johann Aumann
  • Patent number: 5480455
    Abstract: An improved liner and method is taught for use in protecting a wearer's skin from moisture retention when worn with prosthetic devices and other substantially non-breathable shells. The liner is form fitted to attach to a wearer without bunching or other pressure points which can cause skin irritation. Preferably, the liner comprises a membrane of expanded polytetrafluoroethylene coated on its interior surface with a polyurethane material to aid in moisture isolation and to protect the liner from compromise due to oils and other contaminants found in perspiration. The liner is effective at shielding a wearer's skin from moisture even when worn with no separate absorbent layer.
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: January 2, 1996
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Jean Norvell
  • Patent number: 5399418
    Abstract: A multi-ply three-dimensionally bonded textile fabric is provided, to be used especially in making protective space suits, protective space shielding and other protective garments or shields. The fabric is a three-dimensionally woven, knitted, netted, braided or otherwise interlocked structure of threads including organic fibers such as aramid, polyethylene and/or polytetrafluoroethylene fibers and preferably also metallic fibers such as copper, aluminum and/or stainless steel fibers. These fibers are chosen to provide protection against adverse thermal, chemical, electrical and mechanical environmental effects that may be hazardous to an astronaut, for example. The fibers are arranged substantially in respective plies, and each ply is bonded or interlocked only to respective adjacent plies over substantially the entire ply area to provide a flexible multi-ply fabric. The threads are arranged to provide a gradient or variation in characteristics or properties from an outer surface to an inner surface.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: March 21, 1995
    Assignee: ERNO Raumfahrttechnik GmbH
    Inventors: Joerg Hartmanns, Detlef Mueller-Wiesner, Lutz Kampmann, Hans-Guenther Reimerdes, Wolfgang Fischer
  • Patent number: 5264276
    Abstract: A chemically protective laminate comprising a thin thermoplastic barrier layer, having a consistent thickness, laminated between two porous polymeric membrane layers. The porous polymeric membrane may be of porous polytetrafluoroethylene, preferably expanded porous polytetrafluoroethylene. The chemically protective laminate may be subsequently adhered to a backing to form a fabric laminate capable of being assembled into a chemically protective article.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: November 23, 1993
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Gordon L. McGregor, Richard Winkelmayer, Jr.