Patents by Inventor William A. Groll

William A. Groll 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: 10478012
    Abstract: A method of making cookware containing a bonded composite comprising the steps of providing at least two layers of materials by pressurizing and heating wherein the first of the at least two layers of materials has a plurality of spaced-apart bubbles formed on its surface, defining a cooking surface of the cookware, and a second layer of two layers of material is bonded thereto, wherein the bonding between the bubbles and the second material is of a lesser degree than the bonding between the first and second layers of materials in areas intermediate the bubbles, whereby a coefficient of heat conductivity is greater in the intermediate areas than in the bubbles. The method also includes providing a plurality of sets of bonding blank assemblies by solid state processing under pressure and heat.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: November 19, 2019
    Assignee: All-Clad Metalcrafters LLC
    Inventors: William A. Groll, John Watkins
  • Publication number: 20190110637
    Abstract: A lid holder has a base portion and a pair of spaced apart arms having a proximal end connected to the base portion and a free distal end extending away from the base portion. The lid holder further has a U-shaped lug at the free distal end of each arm, the lug having a first end and a second end directed toward the base portion, and a leg connected to the second end of each U-shaped lug, the leg protruding in an outward direction away from the arms. The arms are deflectable from a first position to a second position with application of a deflecting force such that at least a portion of the arms is insertable between vertically extending posts of a lid handle. After a deflecting force is removed, the arms revert back toward the first position, thereby engaging the legs with the vertically extending posts of the lid handle.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 18, 2019
    Inventors: William A. Groll, Bruce W. Perry
  • Publication number: 20190029458
    Abstract: Provided is an article of cookware and a method of making the same. The cookware has at least one stainless steel layer and at least one copper layer metallurgically bonded directly to the at least one stainless steel layer via solid state bonding. The at least one stainless steel layer may be a ferritic stainless steel layer, and the at least one copper layer may be a grain stabilized copper. The at least one stainless steel layer may be made from a 400 series stainless steel, such as a 436 stainless steel alloy, a 439 stainless steel alloy, or a 444 stainless steel alloy. The at least one copper layer may be made from a high purity, oxygen free copper alloy, such as a C101 copper alloy, a C102 copper alloy, or a C107 copper alloy.
    Type: Application
    Filed: June 28, 2018
    Publication date: January 31, 2019
    Inventors: William A. Groll, Bruce W. Perry
  • Publication number: 20180290432
    Abstract: Provided is an article of cookware and a method of making the same. The cookware has a multi-layer bonded composite wall structure having an inner metal layer and an outer metal layer, and a core layer between the inner layer and the outer layer. The core layer has at least two perforated graphite plates, each plate having a plurality of spaced-apart holes formed therethrough, and at least one intermediate metal element disposed between the at least two perforated graphite plates and extending through the plurality of spaced-apart holes of each of the at least two perforated graphite plates. The at least one intermediate metal element is metallurgically bonded to the inner layer and the outer layer at least through the plurality of spaced-apart holes.
    Type: Application
    Filed: June 8, 2018
    Publication date: October 11, 2018
    Inventors: William A. Groll, John Watkins
  • Patent number: 10081163
    Abstract: Provided is an article of cookware and a method of making the same. The cookware has a multi-layer bonded composite wall structure having an inner metal layer and an outer metal layer, and a core layer between the inner layer and the outer layer. The core layer has at least two perforated graphite plates, each plate having a plurality of spaced-apart holes formed therethrough, and at least one intermediate metal element disposed between the at least two perforated graphite plates and extending through the plurality of spaced-apart holes of each of the at least two perforated graphite plates. The at least one intermediate metal element is metallurgically bonded to the inner layer and the outer layer at least through the plurality of spaced-apart holes.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: September 25, 2018
    Assignee: All-Clad Metalcrafters LLC
    Inventors: William A. Groll, John Watkins
  • Patent number: 10040118
    Abstract: Cookware in the form of a grill plate, griddle plate, waffle iron, panini press or the like is made from a cast composite including a graphite core plate encapsulated within a cast metal shell of aluminum or stainless steel, and a method for manufacturing same.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: August 7, 2018
    Assignee: All-Clad Metalcrafters LLC
    Inventor: William A. Groll
  • Publication number: 20180125290
    Abstract: A method of making cookware containing a bonded composite comprising the steps of providing at least two layers of materials by pressurizing and heating wherein the first of the at least two layers of materials has a plurality of spaced-apart bubbles formed on its surface, defining a cooking surface of the cookware, and a second layer of two layers of material is bonded thereto, wherein the bonding between the bubbles and the second material is of a lesser degree than the bonding between the first and second layers of materials in areas intermediate the bubbles, whereby a coefficient of heat conductivity is greater in the intermediate areas than in the bubbles. The method also includes providing a plurality of sets of bonding blank assemblies by solid state processing under pressure and heat.
    Type: Application
    Filed: January 3, 2018
    Publication date: May 10, 2018
    Inventors: William A. Groll, John Watkins
  • Patent number: 9888808
    Abstract: A method of making cookware containing a bonded composite comprising the steps of providing at least two layers of materials by pressurizing and heating wherein the first of the at least two layers of materials has a plurality of spaced-apart bubbles formed on its surface, defining a cooking surface of the cookware, and a second layer of two layers of material is bonded thereto, wherein the bonding between the bubbles and the second material is of a lesser degree than the bonding between the first and second layers of materials in areas intermediate the bubbles, whereby a coefficient of heat conductivity is greater in the intermediate areas than in the bubbles. The method also includes providing a plurality of sets of bonding blank assemblies by solid state processing under pressure and heat.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: February 13, 2018
    Assignee: All-Clad Metalcrafters LLC
    Inventors: William A. Groll, John Watkins
  • Patent number: 9756979
    Abstract: A device for holding a lid to a pot to permit the pouring of liquid from the pot while retaining a food product within the pot, including a pair of spaced apart hook members attached to opposed top edges of the pot and positioned off-set from a centerline of the pot. The hook members each include a horizontal top flange turned inwardly toward the pot, whereby when the pot is moved to a pouring position, the liquid forces the lid to separate from the pot and the top flanges of the hook members to engage the lid to maintain a predetermined pouring gap between the lid and the pot and also to prevent the lid from sliding forward off the pot due to their off-set positioning from the pot centerline.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: September 12, 2017
    Assignee: All-Clad Metalcrafters LLC
    Inventor: William A. Groll
  • Publication number: 20170157895
    Abstract: Provided is an article of cookware and a method of making the same. The cookware has a multi-layer bonded composite wall structure having an inner metal layer and an outer metal layer, and a core layer between the inner layer and the outer layer. The core layer has at least two perforated graphite plates, each plate having a plurality of spaced-apart holes formed therethrough, and at least one intermediate metal element disposed between the at least two perforated graphite plates and extending through the plurality of spaced-apart holes of each of the at least two perforated graphite plates. The at least one intermediate metal element is metallurgically bonded to the inner layer and the outer layer at least through the plurality of spaced-apart holes.
    Type: Application
    Filed: February 15, 2017
    Publication date: June 8, 2017
    Inventors: William A. Groll, John Watkins
  • Patent number: 9585514
    Abstract: Provided is an article of cookware and a method of making same. The cookware is made from a bonded, multi-layer composite comprising a core construction having a central core disc of a high heat conductive material and an outer ring-shaped core disc surrounding and spaced from the central core disc by a gap to minimize thermal conduction from the central core disc to the outer ring-shaped core disc.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: March 7, 2017
    Assignee: All-Clad Metalsrafters, LLC
    Inventors: William A. Groll, John Watkins
  • Patent number: 9498084
    Abstract: Cookware formed from carbon steel having a handle comprising two tangs cut from a peripheral flange surrounding a formed body of the cookware, such as a fry pan, wherein end portions of the tangs are integral with the formed body, the tangs being bent to form the handle configuration.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: November 22, 2016
    Assignee: All-Clad Metalcrafters LLC
    Inventors: William A. Groll, John Watkins
  • Publication number: 20160333436
    Abstract: Provided is a multilayer cutting blade (1) including a core (2) that has a cutting wire (3), two side flanks (5), and two intermediate connecting thicknesses (4), the side flanks (5) being made of a corrosion-resistant tough metal alloy, each intermediate connecting thickness (4) having a first face (8) for connecting to the core (2) and a second face (9) for connecting to one or the other of the side flanks (5), the first connecting face (8) and the second connecting face (9) being made of copper or a copper alloy. The core (2) is made of martensitic stainless steel, and the thickness of the core (2) is greater than or equal to one third of the thickness of the cutting blade (1), and preferably greater than or equal to half the thickness of the cutting blade (1).
    Type: Application
    Filed: December 18, 2014
    Publication date: November 17, 2016
    Inventors: Simon Allemand, Stephane Tuffe, William A. Groll, John C. Watkins
  • Patent number: 9402510
    Abstract: Cookware comprising a cooking surface of a bare metal and a sidewall extending upwardly from the cooking surface to a rim, wherein the sidewall is coated with a non-stick material.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: August 2, 2016
    Assignee: All-Clad Metalcrafters LLC
    Inventor: William A. Groll
  • Publication number: 20150313405
    Abstract: Provided is an article of cookware and a method of making same. The cookware is made from a bonded, multi-layer composite comprising a core construction having a central core disc of a high heat conductive material and an outer ring-shaped core disc surrounding and spaced from the central core disc by a gap to minimize thermal conduction from the central core disc to the outer ring-shaped core disc.
    Type: Application
    Filed: July 13, 2015
    Publication date: November 5, 2015
    Inventors: William A. Groll, John Watkins
  • Publication number: 20150272383
    Abstract: A method of making cookware containing a bonded composite comprising the steps of providing at least two layers of materials by pressurizing and heating wherein the first of the at least two layers of materials has a plurality of spaced-apart bubbles formed on its surface, defining a cooking surface of the cookware, and a second layer of two layers of material is bonded thereto, wherein the bonding between the bubbles and the second material is of a lesser degree than the bonding between the first and second layers of materials in areas intermediate the bubbles, whereby a coefficient of heat conductivity is greater in the intermediate areas than in the bubbles. The method also includes providing a plurality of sets of bonding blank assemblies by solid state processing under pressure and heat.
    Type: Application
    Filed: June 11, 2015
    Publication date: October 1, 2015
    Inventors: William A. Groll, John Watkins
  • Patent number: 9144349
    Abstract: A pot rack comprising at least one track member having spaced-apart rails with at least an upper rail surface having a ferromagnetic property and at least one hook member having a lower hook portion for releasably engaging a kitchen utensil, and an upper cap portion of a dimension greater than a spacing between the rails wherein the cap portion includes a magnetic member which is magnetically attracted to the upper rail surface of each of the rails and a shank portion interconnecting the upper cap portion and the lower hook portion. A hook member for use on a slotted ferromagnetic rail comprising a head portion, an integral shank portion and a hook portion extending from the shank portion, said head portion having magnetic means associated therewith to establish a magnetic attraction between the head portion and the rail.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: September 29, 2015
    Assignee: ALL-CLAD METALCRAFTERS LLC
    Inventors: William A. Groll, Troy Schuler
  • Patent number: 9078539
    Abstract: Cookware comprising a selectively bonded composite of at least two layers of materials wherein the first of the at least two layers of materials has a plurality of spaced-apart bubbles formed on its surface, defining a cooking surface of the cookware, and a second layer of two layers of material is bonded thereto, wherein the bonding between the bubbles and the second material is of a lesser degree than the bonding between the first and second layers of materials in areas intermediate the bubbles, whereby a coefficient of heat conductivity is greater in the intermediate areas than in the bubbles.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: July 14, 2015
    Assignee: All-Clad Metalcrafters LLC
    Inventors: William A. Groll, John Watkins
  • Patent number: 9060639
    Abstract: Cookware, such as a stock pot, fry pan, sauté pan, griddle, or grill, comprising a basic three-ply bonded composite includes two layers of an aluminum alloy, such as 3003 or the like, bonded on opposed sides to a core layer of higher purity aluminum, such as 1050, 1100, 1145, or the like, to define a three-ply composite cookware product. One or more additional layers of higher purity aluminum are bonded intermediate one or more additional layers of aluminum alloy to form five-ply, or seven-ply, or more, bonded composite cookware products. The exterior layers of aluminum alloy may also include a non-stick coating and/or an anodized coating.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: June 23, 2015
    Assignee: All-Clad Metalcrafters LLC
    Inventor: William A. Groll
  • Publication number: 20150108143
    Abstract: Cookware formed from a metal tread plate wherein the metal tread plate is one of carbon steel, aluminum, or stainless steel. The cookware is in the form of a fry pan, roaster pan, saucepan and the like, particularly for outdoor cooking.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 23, 2015
    Inventor: William A. Groll