Patents by Inventor Robert C. Kerr

Robert C. Kerr 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).

  • Patent number: 7858674
    Abstract: This disclosure relates generally to molded rubber articles such as the type used in water contact applications. More particularly, this disclosure is directed to molded rubber articles containing antimicrobial agents that control biofilm growth on the surface of the molded article. The molded rubber article is comprised of curable rubber compounds and a combination of both inorganic silver-containing antimicrobial agents and organic antimicrobial agents. An exemplary molded rubber article comprises ethylene propylene diene monomer rubber, silver-containing ion exchange antimicrobial agent, and an organic antifungal agent such as zinc pyrithione.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: December 28, 2010
    Assignee: Milliken & Co.
    Inventors: Geoffrey R Haas, Robert C Kerr, Carolina Mateus, David L Morris, Bhawan Patel, Jenci Kurja
  • Patent number: 7566374
    Abstract: A method of making a mat with a textile surface and an elastomer backing is provided. The method includes mixing elastomer crumbs and a binder, depositing the crumb/binder mixture in a layer (22), placing a textile surface element (34) on the layer to form a mat assembly, and pressing the mat assembly in a press (9) while setting the binder. The elastomer crumbs are consolidated to form an elastomer backing (2) that includes voids between the elastomer crumbs, and the textile surface element is bonded to the elastomer backing to form the upper textile layer (1) of the mat.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: July 28, 2009
    Assignee: Milliken & Company
    Inventors: Peter C. Brazier, Thomas A. P. Brock, Robert C. Kerr, Bhawan Patel, Flemming Bojstrup, Patrick Morel
  • Publication number: 20080187560
    Abstract: This disclosure relates generally to molded rubber articles such as the type used in water contact applications. More particularly, this disclosure is directed to molded rubber articles containing antimicrobial agents that control biofilm growth on the surface of the molded article. The molded rubber article is comprised of curable rubber compounds and a combination of both inorganic silver-containing antimicrobial agents and organic antimicrobial agents. An exemplary molded rubber article comprises ethylene propylene diene monomer rubber, silver-containing ion exchange antimicrobial agent, and an organic antifungal agent such as zinc pyrithione.
    Type: Application
    Filed: February 5, 2007
    Publication date: August 7, 2008
    Inventors: Geoffrey R. Haas, Robert C. Kerr, Carolina Mateus, David L. Morris, Bhawan Patel, Jenci Kurja
  • Patent number: 6921502
    Abstract: At least one embodiment of this invention relates to a cushioned dust control mat article wherein the mat comprises at least two distinct layers of rubber, one comprising foam rubber, the other comprising solid rubber. The solid rubber layer is present over the foam rubber layer on the side of the mat in which at least one integrated rubber protrusion is present to provide cushioning characteristics. The solid rubber layer acts as a cap or barrier for the foam rubber layer, particularly over the integrated protrusion or protrusions, in order to provide a mat which is resilient, will not easily degrade in its modulus strength after appreciable use and/or washing within industrial cleaning processes, and will not exhibit appreciable cracking or breaking, particularly within the integrated protrusion(s), after standard use for pedestrian traffic. A method of producing such an inventive cushioned floor mat article is also provided.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: July 26, 2005
    Assignee: Milliken & Company
    Inventors: Thomas D. Nord, Seiin Kobayashi, William O. Burke III, Amy K. Streeton, Robert C. Kerr
  • Patent number: 6787215
    Abstract: The present invention relates to specific methods of producing cleated rubber-backed floor mats (such as dust control or rubber mats) through the utilization of the combination of a perforated coated woven fabric article and a cushioned platen liner between the article and the metal platen of an in-line dust control mat manufacturing machine. Such a procedure permits a more efficient manner of producing cleated anti-creep dust control mats than previously followed. In particular, the fabric article is in the form of a conveyor belt and is preferably constructed from Teflon®-coated woven fiberglass which will not adhere to the tacky rubber component of the target mat and can withstand the extremely high vulcanization temperatures and pressures required during the production of a dust control mat.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: September 7, 2004
    Assignee: Milliken & Company
    Inventors: William O. Burke, III, Robert C. Kerr, Aage Lang
  • Patent number: 6709728
    Abstract: The present invention relates to specific methods of producing cleated rubber-backed floor mats (such as dust control or rubber mats) through the utilization of the combination of a perforated coated woven fabric article and a cushioned platen liner between the article and the metal platen of an in-line dust control mat manufacturing machine. Such a procedure permits a more efficient manner of producing cleated anti-creep dust control mats than previously followed. The produced mat as well as the woven fabric article/cushioned platen liner combination are also encompassed within this invention.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: March 23, 2004
    Assignee: Milliken & Company
    Inventors: Robert C. Kerr, Amy B. Streeton
  • Patent number: 6591560
    Abstract: The present disclosure relates to an anti-fatigue flooring article having inherent properties of electrostatic dissipation. Further, this disclosure relates to flooring article having at least two layers, wherein a first layer (comprised of dense rubber) is calendered to a second layer (comprised of foam rubber). Each layer has a different electrical conductivity, thereby creating a mat having an appropriate range of conductivity when combined. The present flooring article may also include a layer of static dissipating scrim, a grounding means, and/or a colored marking.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: July 15, 2003
    Assignee: Milliken & Company
    Inventors: William O. Burke, III, Amy B. Streeton, Robert C. Kerr, William H. Stewart, Jr., Roy P. DeMott
  • Publication number: 20030129354
    Abstract: This invention relates to a floor mat which comprises a nonwoven substrate through which carpet pile fibers are tufted and which also comprises either a foam rubber backing sheet which exhibits the same degree of shrinkage as the carpet pile component or a rubber backing sheet which possesses a strength modulus above about 1,000 pounds per square inch. With such backing sheet requirements either the overall shrinkage of the mat will be even or the backing sheet will be strong enough to compensate for varying degrees of shrinkage between the pile substrate and the backing sheet. The resultant floor mat is the first such mat which meets industrial laundry standards of rippling (i.e., curling up) and delaminating (i.e.
    Type: Application
    Filed: August 3, 1998
    Publication date: July 10, 2003
    Inventors: WILLIAM O. BURKE, JAMES N. ROCKWELL, ROBERT C. KERR
  • Patent number: 6589631
    Abstract: A flashless floor mat or product and method are provided. At least one embodiment of this invention relates to a flashless cushioned dust control mat article wherein the mat comprises at least two distinct layers of rubber, one comprising foam rubber, the other comprising solid rubber. The solid rubber layer is present over the foam rubber layer on the side of the mat in which at least one integrated rubber protrusion is present to provide cushioning characteristics. The solid rubber layer acts as a cap or barrier for the foam rubber layer, particularly over the integrated protrusion or protrusions, in order to provide a mat which is resilient, will not easily degrade in its modulus strength after appreciable use and/or washing within industrial cleaning processes, and will not exhibit appreciable cracking or breaking, particularly within the integrated protrusion(s), after standard use for pedestrian traffic. A method of producing such an inventive cushioned floor mat article is also provided.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: July 8, 2003
    Assignee: Milliken & Company
    Inventors: Akihito Suzuki, Robert C. Kerr, Amy K. Streeton
  • Patent number: 6520763
    Abstract: The present invention relates to specific methods of producing cleated rubber-backed floor mats (such as dust control or rubber mats) through the utilization of the combination of a perforated coated woven fabric article and a cushioned platen liner between the article and the metal platen of an in-line dust control mat manufacturing machine. Such a procedure permits a more efficient manner of producing cleated anti-creep dust control mats than previously followed. In particular, the fabric article is in the form of a conveyor belt and is preferably constructed from Teflon®-coated woven fiberglass which will not adhere to the tacky rubber component of the target mat and can withstand the extremely high vulcanization temperatures and pressures required during the production of a dust control mat.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: February 18, 2003
    Assignee: Milliken & Company
    Inventors: Robert C. Kerr, Amy B. Streeton
  • Publication number: 20020178661
    Abstract: The present disclosure relates to an anti-fatigue flooring article having inherent properties of electrostatic dissipation. Further, this disclosure relates to flooring article having at least two layers, wherein a first layer (comprised of dense rubber) is calendered to a second layer (comprised of foam rubber). Each layer has a different electrical conductivity, thereby creating a mat having an appropriate range of conductivity when combined. The present flooring article may also include a layer of static dissipating scrim, a grounding means, and/or a colored marking.
    Type: Application
    Filed: March 9, 2001
    Publication date: December 5, 2002
    Inventors: William O. Burke, Amy B. Streeton, Robert C. Kerr, William H. Stewart, Roy P. DeMott
  • Patent number: 6478995
    Abstract: This invention relates to a cushioned floor covering article wherein the mat includes a tufted carpet placed on the top side of a foam rubber sheet and at least one foam rubber protrusion integrated within at least a portion of the bottom side of the foam rubber sheet. Such an article provides effective removal of moisture, dirt, and debris from the footwear of pedestrians through the utilization of a carpet pile component. Furthermore, the utilization of a foam rubber backing also allows for either periodic heavy duty industrial-scale laundering in such standard washing machines or periodic washing and drying in standard in-home machines, both without appreciably damaging the inventive floor covering article, such as a floor mat. Additionally, the presence of integrated foam rubber protrusions within the mat structure provides an effective cushioning effect for pedestrian comfort as well as a means to prevent slippage of the article from its contacted surface.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: November 12, 2002
    Assignee: Milliken & Company
    Inventors: James N. Rockwell, Jr., Robert C. Kerr, William O. Burke, III
  • Patent number: 6448306
    Abstract: Certain butadiene and/or natural rubber articles, such as acrylonitrile-butadiene rubber (NBR), natural rubber, and derivatives thereof, that exhibit highly desirable long-term effective antimicrobial characteristics. Such formulations are intended to be vulcanized to provide solid or foam rubber articles which can be utilized in a variety of different applications. Preferably such butadiene rubber formulations comprise silver-based antimicrobial compounds. As such silver-based compounds are deleteriously affected by utilization of standard non-silicone-rubber curing agents, such as sulfur-based catalysts, the ability to provide such an effective antimicrobial vulcanized rubber article is rather difficult. However, the invention encompasses the utilization of different catalyst species that permit vulcanization and silver stability for long-term antimicrobial performance of the silver-based compounds.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: September 10, 2002
    Assignee: Milliken & Company
    Inventors: John G. Lever, Geoffrey R. Haas, Bhawan Patel, William O. Burke, III, Robert C. Kerr
  • Patent number: 6428873
    Abstract: The disclosure relates to a floor mat and method for producing the same. The floor mat includes a plurality of tufts extending from a carrier fabric which is joined by a layer of adhesive to a backing having at least one layer of vulcanized thermoplastic elastomer. The process for production of the floor mat includes applying an olefin based adhesive to the back of a primary tufted fabric which has been preheated. The process for production includes the further separate step of applying a sheet of vulcanized thermoplastic elastomer of between about 20 and 40 mils thickness with or without a layer of reinforcing material to the preheated adhesive backed primary tufted fabric. A second layer of vulcanized thermoplastic elastomer may thereafter be applied following another heating step.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: August 6, 2002
    Assignee: Milliken & Company
    Inventor: Robert C. Kerr
  • Patent number: 6340514
    Abstract: This invention relates to a cushioned dust control mat article wherein the mat comprises at least two distinct layers of rubber, one comprising foam rubber, the other comprising solid rubber. The solid rubber layer is present over the foam rubber layer on the side of the mat in which at least one integrated rubber protrusion is present to provide cushioning characteristics. The solid rubber layer acts as a cap or barrier for the foam rubber layer, particularly over the integrated protrusion or protrusions, in order to provide a mat which is resilient, will not easily degrade in its modulus strength after appreciable use and/or washing within industrial cleaning processes, and will not exhibit appreciable cracking or breaking, particularly within the integrated protrusion(s), after standard use for pedestrian traffic. A method of producing such an inventive cushioned floor mat article is also provided.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: January 22, 2002
    Assignee: Milliken & Company
    Inventors: Robert C. Kerr, William O. Burke, lll
  • Patent number: 6332293
    Abstract: A launderable dust control mat having antimicrobial properties is provided. The mat includes a pile fiber upper surface and a rubber backing surface. Metal based antimicrobial agent, are disposed within both the fiber forming the upper surface and the rubber forming the backing surface thereby providing antimicrobial character to the mat as a whole.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: December 25, 2001
    Assignee: Milliken & Company
    Inventors: Robert C. Kerr, James N. Rockwell
  • Publication number: 20010046582
    Abstract: The present invention relates to specific methods of producing cleated rubber-backed floor mats (such as dust control or rubber mats) through the utilization of the combination of a perforated coated woven fabric article and a cushioned platen liner between the article and the metal platen of an in-line dust control mat manufacturing machine. Such a procedure permits a more efficient manner of producing cleated anti-creep dust control mats than previously followed. In particular, the fabric article is in the form of a conveyor belt and is preferably constructed from Teflon®-coated woven fiberglass which will not adhere to the tacky rubber component of the target mat and can withstand the extremely high vulcanization temperatures and pressures required during the production of a dust control mat.
    Type: Application
    Filed: July 25, 2001
    Publication date: November 29, 2001
    Inventors: Robert C. Kerr, Amy B. Streeton
  • Patent number: 6303068
    Abstract: The present invention relates to specific methods of producing cleated rubber-backed floor mats (such as dust control or rubber mats) through the utilization of the combination of a perforated coated woven fabric article and a cushioned platen liner between the article and the metal platen of an in-line dust control mat manufacturing machine. Such a procedure permits a more efficient manner of producing cleated anti-creep dust control mats than previously followed. In particular, the fabric article is in the form of a conveyor belt and is preferably constructed from Teflon®-coated woven fiberglass which will not adhere to the tacky rubber component of the target mat and can withstand the extremely high vulcanization temperatures and pressures required during the production of a dust control mat.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: October 16, 2001
    Assignee: Milliken & Company
    Inventors: Robert C. Kerr, Amy B. Streeton
  • Patent number: 6296919
    Abstract: This invention relates to a cushioned floor covering article wherein the mat includes a tufted carpet placed on the top side of a foam rubber sheet and at least one foam rubber protrusion integrated within at least a portion of the bottom side of the foam rubber sheet. Such an article provides effective removal of moisture, dirt, and debris from the footwear of pedestrians through the utilization of a carpet pile component. Furthermore, the utilization of a foam rubber backing also allows for either periodic heavy duty industrial-scale laundering in such standard washing machines or periodic washing and drying in standard in-home machines, both without appreciably damaging the inventive floor covering article, such as a floor mat. Additionally, the presence of integrated foam rubber protrusions within the mat structure provides an effective cushioning effect for pedestrian comfort as well as a means to prevent slippage of the article from its contacted surface.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: October 2, 2001
    Assignee: Milliken & Company
    Inventors: James N. Rockwell, Jr., Robert C. Kerr, William O. Burke, III
  • Patent number: RE38422
    Abstract: This invention relates to a cushioned floor covering article wherein the mat includes a tufted carpet placed on the top side of a foam rubber sheet and at least one foam rubber protrusion integrated within at least a portion of the bottom side of the foam rubber sheet. Such an article provides effective removal of moisture, dirt, and debris from the footwear of pedestrians through the utilization of a carpet pile component. Furthermore, the utilization of a foam rubber backing also allows for either periodic heavy duty industrial-scale laundering in such standard washing machines or periodic washing and drying in standard in-home machines, both without appreciably damaging the inventive floor covering article, such as a floor mat. Additionally, the presence of integrated foam rubber protrusions within the mat structure provides an effective cushioning effect for pedestrian comfort as well as a means to prevent slippage of the article from its contacted surface.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: February 10, 2004
    Assignee: Milliken & Co.
    Inventors: James N. Rockwell, Jr., Robert C. Kerr, William O. Burke, III