Polytetrafluoroethylene Patents (Class 2/904)
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Patent number: 10265199Abstract: 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: GrantFiled: July 31, 2013Date of Patent: April 23, 2019Assignee: CHABLOZ COMPOSANTSInventor: Pierre Chabloz
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Patent number: 8256025Abstract: 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: GrantFiled: August 15, 2011Date of Patent: September 4, 2012Assignee: 3M Innovative Properties CompanyInventors: Rino A. Feduzi, Robert L. Jensen, Jr., Jeanine M. Shusta
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Patent number: 8015620Abstract: 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: GrantFiled: September 3, 2009Date of Patent: September 13, 2011Assignee: 3M Innovative Properties CompanyInventors: Rino A. Feduzi, Robert L. Jensen, Jr., Jeanine M. Shusta
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Patent number: 7600269Abstract: 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: GrantFiled: August 16, 2007Date of Patent: October 13, 2009Assignee: 3M Innovative Properties CompanyInventors: Rino A. Feduzi, Robert L. Jensen, Jr., Jeanine M. Shusta
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Patent number: 7162746Abstract: 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: GrantFiled: December 11, 2002Date of Patent: January 16, 2007Inventor: Eric M. Reynolds
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Patent number: 7107622Abstract: 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: GrantFiled: July 15, 2005Date of Patent: September 19, 2006Assignee: 3M Innovative Properties CompanyInventors: Rino A. Feduzi, Robert L. Jensen, Jr., Jeanine M. Shusta
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Patent number: 6931665Abstract: 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: GrantFiled: July 30, 2001Date of Patent: August 23, 2005Assignee: 3M Innovative Properties CompanyInventors: Rino A. Feduzi, Robert L. Jensen, Jr., Jeanine M. Shusta
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Patent number: 6745405Abstract: 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: GrantFiled: December 5, 2002Date of Patent: June 8, 2004Assignee: Blauer Manufacturing Co., Inc.Inventors: Stephen J. Blauer, Mark A. Mordecai, Toufic G. Atallah
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Patent number: 6490734Abstract: 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: GrantFiled: January 6, 2002Date of Patent: December 10, 2002Assignee: Blauer Manufacturing Company, Inc.Inventors: Stephen J. Blauer, Mark A. Mordecai, Toufic G. Atallah
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Patent number: 6336221Abstract: 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: GrantFiled: November 6, 2000Date of Patent: January 8, 2002Assignee: Blauer Manufacturing Company, Inc.Inventors: Stephen J. Blauer, Mark A. Mordecai, Toufic G. Atallah
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Patent number: 6018819Abstract: 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: GrantFiled: April 15, 1998Date of Patent: February 1, 2000Assignee: BHA Technologies, Inc.Inventors: James C. King, Frederic T. Wilson
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Patent number: 5972449Abstract: 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: GrantFiled: February 8, 1999Date of Patent: October 26, 1999Assignee: Donaldson Company, Inc.Inventor: Hoo Young Chung
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Patent number: 5955175Abstract: 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: GrantFiled: November 18, 1996Date of Patent: September 21, 1999Assignee: W. L. Gore & Associates, Inc.Inventor: Gregory D. Culler
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Patent number: 5843057Abstract: 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: GrantFiled: June 25, 1997Date of Patent: December 1, 1998Assignee: Kimberly-Clark Worldwide, Inc.Inventor: Ann Louise McCormack
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Patent number: 5572737Abstract: 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: GrantFiled: December 12, 1994Date of Patent: November 12, 1996Inventor: Steven F. Valice
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Patent number: 5537688Abstract: 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: GrantFiled: December 30, 1994Date of Patent: July 23, 1996Assignee: ErgoAir, Inc.Inventors: Douglas D. Reynolds, Thomas C. Jetzer
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Patent number: 5532037Abstract: 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: GrantFiled: October 5, 1994Date of Patent: July 2, 1996Inventor: Johann Aumann
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Patent number: 5480455Abstract: 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: GrantFiled: August 25, 1993Date of Patent: January 2, 1996Assignee: W. L. Gore & Associates, Inc.Inventor: Jean Norvell
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Patent number: 5399418Abstract: 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: GrantFiled: November 22, 1993Date of Patent: March 21, 1995Assignee: ERNO Raumfahrttechnik GmbHInventors: Joerg Hartmanns, Detlef Mueller-Wiesner, Lutz Kampmann, Hans-Guenther Reimerdes, Wolfgang Fischer
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Patent number: 5264276Abstract: 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: GrantFiled: January 7, 1993Date of Patent: November 23, 1993Assignee: W. L. Gore & Associates, Inc.Inventors: Gordon L. McGregor, Richard Winkelmayer, Jr.