Patents by Inventor David Mark Lucas
David Mark Lucas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10791778Abstract: Polymeric gloves having stress-reducing ridges, and methods and formers for manufacturing polymeric gloves having stress-reducing ridges, are disclosed.Type: GrantFiled: January 18, 2017Date of Patent: October 6, 2020Assignee: Ansell LimitedInventors: Jali Lamar Williams, Sze Yin Ng, David Mark Lucas, Azman Hamzah
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Publication number: 20190357609Abstract: An ambidextrous stress-reducing polymeric glove, comprising: a thumb having a palmside surface and a backhand surface; a plurality of fingers that includes an index finger, a middle finger, a ring finger, and a little finger, each of the plurality of fingers having a palmside surface and a backhand surface; a palm region; a backhand region; and a stress-reducing ridge on at least one of: the backhand surface of the thumb and the palmside surface of the thumb, the backhand surface of the index finger and the palmside surface of the index finger, the backhand surface of the middle finger and the palmside surface of the middle finger, the backhand surface of the ring finger and the palmside surface of the ring finger, the backhand surface of the little finger and the palmside surface of the little finger, or the palm region and the backhand region.Type: ApplicationFiled: December 20, 2017Publication date: November 28, 2019Inventors: Jali Lamar Williams, Christina Foo Lik Erh, David Mark Lucas
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Publication number: 20180360143Abstract: Polymeric gloves having stress-reducing ridges, and methods and formers for manufacturing polymeric gloves having stress-reducing ridges, are disclosed.Type: ApplicationFiled: January 18, 2017Publication date: December 20, 2018Inventors: Jali Lamar WILLIAMS, Sze Yin NG, David Mark LUCAS, Azman HAMZAH
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Patent number: 7721354Abstract: A glove with an integrally formed arm trough has a hand portion, arm portion and a cuff portion. The arm portion is provided with a first ridge, a second ridge with a larger diameter compared to the arm portion, and a third ridge. During use, the third ridge is pushed towards the first ridge by the user to extend the second ridge away from the arm and towards the hand portion forming a liquid capturing trough while the cuff portion protects from the arm from liquid exposure. The length between the third ridge and the second ridge is larger than the length between the first and second ridge so that the trough created has a positive cone angle and a depth to sufficient to provide liquid volume capacity. The ridges are shaped as sharp edges or C-sections to provide easy forming of the liquid capturing arm trough.Type: GrantFiled: September 21, 2006Date of Patent: May 25, 2010Assignee: Ansell Healthcare Products LLCInventors: Loo Liong Yu, David Mark Lucas, Ong Chin Kok, Karunagaran A/L Arumugam, Dave Narasimhan
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Patent number: 7678435Abstract: A powder-free medical glove having a first surface of a powder-free coagulant and a second surface with a polymer coating to ease donning. The powder-free coagulant on the first surface comprises micronized high-density polyethylene, a micro-emulsion of amino silicone, a dimethicone emulsion, calcium salts, an ethoxylated acetylenic diol surfactant and a cellulose thickener. The medical gloves are made in an on-line process of making latex articles that involves dipping hand-shaped formers into the coagulant before dipping them into the latex. The gloves are thereafter coated with a polymer to improve donnability before removal from the formers. The novel coagulant formulation permits easy removal of the articles from the formers, eases double-donning of gloves and eliminates the need for off-line processing.Type: GrantFiled: April 16, 2004Date of Patent: March 16, 2010Assignee: Ansell Healthcare Products LLCInventors: Noorman Bin Abu Hassan, David Mark Lucas, Hisam Ibrahim
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Publication number: 20090139012Abstract: A powder-free medical glove having a first surface of a powder-free coagulant and a second surface with a polymer coating to ease donning. The powder-free coagulant on the first surface comprises micronized high-density polyethylene, a micro-emulsion of amino silicone, a dimethicone emulsion, calcium salts, an ethoxylated acetylenic diol surfactant and a cellulose thickener. The medical gloves are made in an on-line process of making latex articles that involves dipping hand-shaped formers into the coagulant before dipping them into the latex. The gloves are thereafter coated with a polymer to improve donnability before removal from the formers. The novel coagulant formulation permits easy removal of the articles from the formers, eases double-donning of gloves and eliminates the need for off-line processing.Type: ApplicationFiled: April 16, 2004Publication date: June 4, 2009Inventors: Noorman Bin Abu Hassan, David Mark Lucas, Hisam Ibrahim
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Patent number: 7527828Abstract: The present invention provides a method of making an elastomeric article including preparing a non-woven fibrous polymer composition for dip-coating onto a layer of carboxylated acrylonitrile-butadiene elastomeric surface and in particular making industrial or household gloves. By dipping a former into a salt-based coagulant, followed by dipping into an elastomeric dispersion, and finally dipping into a polymer composite fibrous coating, a useful elastomeric article is prepared. The invention also provides an elastomeric article having a first layer, the first layer comprising a natural or synthetic polymer; and a second layer bonded to the first layer, the second layer comprising a polymer composite fibrous coating. The polymer composite fibrous coating includes at least one elastomer or elastomer blend, a fiber or fiber blend, a surfactant, and a micronised wax. The coating can be foamed, and provides improved sweat management and non-shedding properties to a user.Type: GrantFiled: February 16, 2006Date of Patent: May 5, 2009Assignee: Ansell Healthcare Products LLCInventors: Noorman Bin Abu Hassan, David Mark Lucas, Nuzaimah Binti Mustafa
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Publication number: 20080092261Abstract: A glove with an integrally formed arm trough has a hand portion, arm portion and a cuff portion. The arm portion is provided with a first ridge, a second ridge with a larger diameter compared to the arm portion, and a third ridge. During use, the third ridge is pushed towards the first ridge by the user to extend the second ridge away from the arm and towards the hand portion forming a liquid capturing trough while the cuff portion protects from the arm from liquid exposure. The length between the third ridge and the second ridge is larger than the length between the first and second ridge so that the trough created has a positive cone angle and a depth to sufficient to provide liquid volume capacity. The ridges are shaped as sharp edges or C-sections to provide easy forming of the liquid capturing arm trough.Type: ApplicationFiled: September 21, 2006Publication date: April 24, 2008Applicant: Ansell Healthcare Products LLCInventors: Loo Liong Yu, David Mark Lucas, Ong Chin Kok, Karunagaran A/L Arumugam, Dave Narasimhan
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Patent number: 7037579Abstract: The present invention provides a method of making an elastomeric article including preparing a non-woven fibrous polymer composition for dip-coating onto a layer of carboxylated acrylonitrile-butadiene elastomeric surface and in particular making industrial or household gloves. By dipping a former into a salt-based coagulant, followed by dipping into an elastomeric dispersion, and finally dipping into a polymer composite fibrous coating, a useful elastomeric article is prepared. The invention also provides an elastomeric article having a first layer, the first layer comprising a natural or synthetic polymer; and a second layer bonded to the first layer, the second layer comprising a polymer composite fibrous coating. The polymer composite fibrous coating includes at least one elastomer or elastomer blend, a fiber or fiber blend, a surfactant, and a micronised wax. The coating can be foamed, and provides improved sweat management and non-shredding properties to a user.Type: GrantFiled: December 19, 2003Date of Patent: May 2, 2006Assignee: Ansell Healthcare Products LLCInventors: Noorman Bin Abu Hassan, David Mark Lucas, Nuzaimah Binti Mustafa
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Patent number: D787779Type: GrantFiled: January 21, 2016Date of Patent: May 30, 2017Assignee: Ansell LimitedInventors: Jali Lamar Williams, Sze Yin Ng, David Mark Lucas, Azman Hamzah