Patents by Inventor Robert P. Bigliano
Robert P. Bigliano 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: 8267750Abstract: A knife edge enhancing apparatus includes a support having a support surface and knife blade clamping structure mounted to the support and located above the support surface. An object having a knife edge modifying surface which could be abrasive or non-abrasive is mounted to a holder which is freely slidable on the support surface so that the object surface can be manually moved into contact with a knife edge facet. At least one of the clamping structure and the object surface is angularly adjustable to control the angle of contact of the object surface with the knife edge facet.Type: GrantFiled: August 31, 2010Date of Patent: September 18, 2012Assignee: Edgecraft CorporationInventors: Daniel D. Friel, Sr., Robert P. Bigliano, Angela Bigliano, legal representative, Samuel Weiner
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Publication number: 20100323597Abstract: A knife edge enhancing apparatus includes a support having a support surface and knife blade clamping structure mounted to the support and located above the support surface. An object having a knife edge modifying surface which could be abrasive or non-abrasive is mounted to a holder which is freely slidable on the support surface so that the object surface can be manually moved into contact with a knife edge facet. At least one of the clamping structure and the object surface is angularly adjustable to control the angle of contact of the object surface with the knife edge facet.Type: ApplicationFiled: August 31, 2010Publication date: December 23, 2010Inventors: Daniel D. Friel, SR., Robert P. Bigliano, Angela Bigliano, Samuel Weiner
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Publication number: 20090181602Abstract: A knife edge enhancing apparatus includes a support having a support surface and knife blade clamping structure mounted to the support and located above the support surface. An object having a knife edge modifying surface which could be abrasive or non-abrasive is mounted to a holder which is freely slidable on the support surface so that the object surface can be manually moved into contact with a knife edge facet. At least one of the clamping structure and the object surface is angularly adjustable to control the angle of contact of the object surface with the knife edge facet.Type: ApplicationFiled: March 6, 2009Publication date: July 16, 2009Inventors: Daniel D. Friel, SR., Robert P. Bigliano, Angela Bigliano, Samuel Weiner
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Patent number: 7517275Abstract: A multi-stage sharpener includes at least one motor driven abrasive sharpening stage and one non-motor driven conditioning stage. The conditioning stage has a non-abrasive hardened surface and at least one precision knife guide which has a planar guide surface for creating a microscopic serration along the edge of a blade which had been sharpened in the first stage sharpening station. The sharpener may also include a third stage motor driven finishing stage. Alternatively, the conditioning stage can be incorporated as the knife edge modifying stage of a manual sharpener.Type: GrantFiled: August 16, 2007Date of Patent: April 14, 2009Assignee: Edgecraft Corp.Inventors: Daniel D. Friel, Sr., Robert P. Bigliano
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Patent number: 7287445Abstract: An apparatus for manually steeling or conditioning the edge of a knife blade comprises a precision angle guide attached to a manual sharpening steel. The angle guide establishes a guiding surface that provides for sustained sliding or rolling contact with the face of the knife blade such that the plane of at least one edge facet adjacent to the edge of the blade is maintained at a precisely established angle relative to the plane of the sharpening steel surface at the contact point of the facet with the surface of the sharpening steel.Type: GrantFiled: May 6, 2005Date of Patent: October 30, 2007Assignee: Edgecraft CorporationInventors: Daniel D. Friel, Sr., Daniel D. Friel, Jr., Robert P. Bigliano, Abraham Leibson
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Patent number: 7235004Abstract: A knife-edge conditioning apparatus comprises at least one precision angled knife guide with one face of the knife blade maintained in sustained sliding or rolling contact and which guides the elongated edge of the blade into sustained contact with the hardened surface of an object and positions the plane of the adjacent edge facet at a precise predetermined angle relative to the contact plane of the hardened surface made of a material of equal or greater hardness than the metal of the knife blade without any tendency to abrade as the blade face is moved along the guide with its elongated edge in sustained contact with the hardened surface.Type: GrantFiled: March 18, 2004Date of Patent: June 26, 2007Assignee: Edgecraft CorporationInventors: Daniel D. Friel, Sr., Robert P. Bigliano
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Publication number: 20040198198Abstract: A knife-edge conditioning apparatus comprises at least one precision angled knife guide with one face of the knife blade maintained in sustained sliding or rolling contact and which guides the elongated edge of the blade into sustained contact with the hardened surface of an object and positions the plane of the adjacent edge facet at a precise predetermined angle relative to the contact plane of the hardened surface made of a material of equal or greater hardness than the metal of the knife blade without any tendency to abrade as the blade face is moved along the guide with its elongated edge in sustained contact with the hardened surface.Type: ApplicationFiled: March 18, 2004Publication date: October 7, 2004Inventors: Daniel D. Friel, Robert P. Bigliano
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Patent number: 6267652Abstract: A versatile ultrahoned sharpener includes a stop assembly which contains an inner hardened structure such as being made from metal or ceramic to serve as a positive limiting stop if the knife being sharpened cuts excessively into the plastic stop assembly of the sharpener. The sharpener also includes a manually actuated abrasive surfaced unit for cleaning or shaping the surface of at least one of the sharpening wheels in the sharpener. The sharpener further includes various bearing structures for effectively mounting the motor driven shaft which rotates the abrasive coated disks of the sharpener.Type: GrantFiled: August 18, 2000Date of Patent: July 31, 2001Assignee: Edgecraft Corp.Inventors: Daniel D. Friel, Sr., Daniel D. Friel, Jr., Robert P. Bigliano
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Patent number: 6113476Abstract: A versatile ultrahoned sharpener includes a stop assembly which contains an inner hardened structure such as being made from metal or ceramic to serve as a positive limiting stop if the knife being sharpened cuts excessively into the plastic stop assembly of the sharpener. The sharpener also includes a manually actuated abrasive surfaced unit for cleaning or shaping the surface of at least one of the sharpening wheels in the sharpener. The sharpener further includes various bearing structures for effectively mounting the motor driven shaft which rotates the abrasive coated disks of the sharpener.Type: GrantFiled: January 7, 1999Date of Patent: September 5, 2000Assignee: EdgeCraft Corp.Inventors: Daniel D Friel, Sr., Daniel D Friel, Jr., Robert P. Bigliano
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Patent number: 6012971Abstract: An abrasive material contains abrasive particles in the range of 50 to 80% by weight in an olefinic thermalplastic resin system which is based on ethylene copolymer. The material may be incorporated on a substrate structure to be used as a stropping or honing material or may be shaped by an injection molding process or may be injection molded over a rigid insert or molded over a rigid wheel or disk inserted in the mold. The material may be used for polishing and finishing of crystalline materials, ceramics, silicon and semi-conductor wafers.Type: GrantFiled: March 13, 1998Date of Patent: January 11, 2000Assignee: Edgecraft CorporationInventors: Daniel D. Friel, Sr., Daniel D. Friel, Jr., Robert P. Bigliano
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Patent number: 5611726Abstract: A high speed knife sharpening apparatus where the surface of a first rotating abrasive element is that of a truncated cone and forms a first facet with microgrooves and a microburr. A second stage is a novel composite cone shaped honing wheel made up of a micro abrasive imbedded in an epoxy matrix. The honing wheel refines the edge developed in the first stage, into an erect triangular shape with a radius of curvature, at the apex (edge), of typically several microns or less depending on the hardness of the knife steel. A unique blade holding system constrains the blade to a precisely defined angle relative to each of the grinding (first) and honing (second) stages. Proportionately larger grinding forces are developed for thicker knife blades, thus sharpening times are approximately the same over the common range of knives from small paring knives (6"), large chef's knives (10") up to kitchen cleavers.Type: GrantFiled: April 28, 1995Date of Patent: March 18, 1997Assignee: Edgecraft CorporationInventors: Daniel D. Friel, Robert P. Bigliano
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Patent number: 5245791Abstract: A scissors sharpening apparatus includes a motor driven sharpening member having an abrasive surface. A magnetic guide is arranged to position the scissors blade at a fixed angle relative to the principle plane of the abrasive surface in such a manner that the magnet of the guide has the axis of its poles oriented nominally perpendicular to the flat face of the blade and nominally parallel to the principle plane of the abrasive surface.Type: GrantFiled: April 13, 1992Date of Patent: September 21, 1993Assignee: Edgecraft CorporationInventors: Robert P. Bigliano, Daniel D. Friel, Steven J. Gluck
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Patent number: 5148634Abstract: A scissors sharpening apparatus includes a motor driven sharpening member having an abrasive surface. A magnetic guide is arranged to position the scissors blade at a fixed angle relative to the principle plane of the abrasive surface in such a manner that the magnet of the guide has the axis of its poles oriented nominally perpendicular to the flat face of the blade and nominally parallel to the principle plane of the abrasive surface.Type: GrantFiled: December 31, 1990Date of Patent: September 22, 1992Assignee: Edgecraft Corp.Inventors: Robert P. Bigliano, Daniel D. Friel
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Patent number: D542616Type: GrantFiled: March 10, 2005Date of Patent: May 15, 2007Assignee: Edgecraft CorporationInventors: Bela Elek, Robert P. Bigliano, Daniel D. Friel, Sr.
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Patent number: RE43884Abstract: An apparatus for manually steeling or conditioning the edge of a knife blade comprises a precision angle guide attached to a manual sharpening steel. The angle guide establishes a guiding surface that provides for sustained sliding or rolling contact with the face of the knife blade such that the plane of at least one edge facet adjacent to the edge of the blade is maintained at a precisely established angle relative to the plane of the sharpening steel surface at the contact point of the facet with the surface of the sharpening steel.Type: GrantFiled: July 1, 2011Date of Patent: January 1, 2013Assignee: Edgecraft CorporationInventors: Daniel D. Friel, Sr., Daniel D. Friel, Jr., Robert P. Bigliano, Abraham Leibson