Patents by Inventor Charles W. Lewis
Charles W. Lewis 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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Publication number: 20180021635Abstract: A golf putter and more specifically a putter head is configured to retrieve a golf ball from a cup on a putting green or to pick up a golf ball from any surface upon which the golf ball is resting. The putter head has a generally C-shaped configuration and defines a centrally located cylindrical channel sized to engage a golf ball and retain the golf ball at a lower end of the channel until removed by hand.Type: ApplicationFiled: July 20, 2017Publication date: January 25, 2018Inventor: Charles W. Lewis
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Publication number: 20150181729Abstract: A mounting fixture comprising a support post configured to support the mounting fixture, a beam coupled to the support post, and at least one cabinet assembly coupled to and supported by the beam. Each audio/visual device is detachably coupled to a cabinet assembly. At least one sidekick is coupled to a side of the at least one cabinet assembly and extending laterally beyond an end of the beam. Each sidekick includes at least one hook configured to retain at least one graphic.Type: ApplicationFiled: December 12, 2014Publication date: June 25, 2015Applicant: Peerless Industries, Inc.Inventor: Charles W. Lewis
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Patent number: 8390197Abstract: A low pressure Ultra Violet (UV) light source produces a high intensity output proportional to the inside diameter and length of a arc discharge column. The light source includes a cathode and anode contained within a high density ceramic body and a sapphire window mounted in line with the arc discharge column. The anode is in line with the arc column at the end opposite the sapphire window, and the cathode is disposed to an area outside the arc discharge column to which the arc moves through an aperture in the side of the arc discharge column structure. As the electrons move through the low pressure gas ionization of the gas occurs releasing photons in the UV region of the spectrum. The sum of the photons generated at each location along the arc discharge column produces the high intensity UV radiation that exits the lamp through a sapphire window.Type: GrantFiled: May 10, 2012Date of Patent: March 5, 2013Assignee: Alta Advanced Technologies, Inc.Inventors: Steven G. Boland, Steven H. Boland, Therlyn L. Brady, Walter D. Chapman, Charles W. Lewis
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Patent number: 6855385Abstract: Apparatus for improved electronic substrate via and thru-hole filling, particularly through the use of drilled stand-offs formed by control-depth drilling oversized non-thru-holes and the use of inserted support pillars to prevent sagging of the substrate during filling. In particular: (1) a via fill stand off adapted for use with a substrate comprising at least two via holes to be filled, each of the via holes having a diameter of X mils, the standoff comprising at least one recess formed by control-depth drilling of holes having a diameter at least 12X mils; and (2) a via fill standoff adapted for use with a substrate comprising at least one via hole to be filled, the standoff comprising: at least one recess; and at least one support pillar positioned within the recess wherein the support pillar is not an integral part of the standoff.Type: GrantFiled: July 22, 2002Date of Patent: February 15, 2005Assignee: TTM Advanced Circuits, Inc.Inventors: Charles W. Lewis, Jesse Pedigo, Joseph Schug
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Patent number: 6800232Abstract: Methods for improved electronic substrate via and thru-hole filling, particularly through the use of drilled stand-offs formed by control-depth drilling oversized non-thru-holes and the use of inserted support pillars to prevent sagging of the substrate during filling. In particular, through the use of: (1) a via fill stand off adapted for use with a substrate comprising at least two via holes to be filled, each of the via holes having a diameter of X mils, the standoff comprising at least one recess formed by control-depth drilling of holes having a diameter at least 12X mils; and (2) a via fill standoff adapted for use with a substrate comprising at least one via hole to be filled, the standoff comprising: at least one recess; and at least one support pillar positioned within the recess wherein the support pillar is not an integral part of the standoff.Type: GrantFiled: July 22, 2002Date of Patent: October 5, 2004Assignee: TTM Advanced Circuits, Inc.Inventors: Charles W. Lewis, Jesse Pedigo, Joseph Schug
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Patent number: 6600965Abstract: An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.Type: GrantFiled: January 26, 1999Date of Patent: July 29, 2003Assignee: 3D Systems, Inc.Inventors: Charles W. Hull, Stuart T. Spence, David J. Albert, Dennis R. Smalley, Richard A. Harlow, Phil Stinebaugh, Harry L. Tarnoff, Hop D. Nguyen, Charles W. Lewis, Tom J. Vorgitch, David Z. Remba
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Publication number: 20030011098Abstract: Methods for improved electronic substrate via and thru-hole filling, particularly through the use of drilled stand-offs formed by control-depth drilling oversized non-thru-holes and the use of inserted support pillars to prevent sagging of the substrate during filling. In particular, through the use of: (1) a via fill stand off adapted for use with a substrate comprising at least two via holes to be filled, each of the via holes having a diameter of X mils, the standoff comprising at least one recess formed by control-depth drilling of holes having a diameter at least 12X mils; and (2) a via fill standoff adapted for use with a substrate comprising at least one via hole to be filled, the standoff comprising: at least one recess; and at least one support pillar positioned within the recess wherein the support pillar is not an integral part of the standoff.Type: ApplicationFiled: July 22, 2002Publication date: January 16, 2003Inventors: Charles W. Lewis, Jesse Pedigo, Joseph Schug
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Publication number: 20020179676Abstract: Apparatus for improved electronic substrate via and thru-hole filling, particularly through the use of drilled stand-offs formed by control-depth drilling oversized non-thru-holes and the use of inserted support pillars to prevent sagging of the substrate during filling. In particular: (1) a via fill stand off adapted for use with a substrate comprising at least two via holes to be filled, each of the via holes having a diameter of X mils, the standoff comprising at least one recess formed by control-depth drilling of holes having a diameter at least 12X mils; and (2) a via fill standoff adapted for use with a substrate comprising at least one via hole to be filled, the standoff comprising: at least one recess; and at least one support pillar positioned within the recess wherein the support pillar is not an integral part of the standoff.Type: ApplicationFiled: July 22, 2002Publication date: December 5, 2002Inventors: Charles W. Lewis, Jesse Pedigo, Joseph Schug
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Patent number: 6048487Abstract: Improved apparatus and methods for forming a layer of material over a surface of a previously-formed cross-section of a three-dimensional object in anticipation of forming a next cross-section of the object out of the layer. A volume of material, including at least some excess material, is placed over the surface, and the excess material is swept off by placing the excess material in the predetermined path of a sweeping member, the path being substantially in a plane spaced from a working surface of material. The member may be directed to sweep the excess material away through a successive number of sweeps, which may vary for each cross-section, at least a velocity which may vary for each sweep. Additionally, the clearance between the member and the surface of the previous cross-section may vary for each sweep. A "winged" member is also provided, comprising two legs extending from a base, and a "Trident" embodiment is also provided, comprising three legs extending from a base.Type: GrantFiled: April 5, 1999Date of Patent: April 11, 2000Assignee: 3D Systems, Inc.Inventors: Thomas A. Almquist, Charles W. Hull, Borzo Modrek, Paul F. Jacobs, Charles W. Lewis, Adam L. Cohen, Stuart T. Spence, Hop D. Nguyen, Mark A. Lewis, Abraham Liran, Dennis R. Smalley
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Patent number: 6048188Abstract: An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being structurally specified to reduce curl, stress and distortion in the ultimately formed object, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.Type: GrantFiled: June 30, 1998Date of Patent: April 11, 2000Assignee: 3D Systems, Inc.Inventors: Charles W. Hull, Stuart T. Spence, Charles W. Lewis, Wayne S. Vinson, Raymond S. Freed, Dennis R. Smalley
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Patent number: 5891382Abstract: Improved apparatus and methods for forming a layer of material over a surface of a previously-formed cross-section of a three-dimensional object in anticipation of forming a next cross-section of the object out of the layer. A volume of material, including at least some excess material, is placed over the surface, and the excess material is swept off by placing the excess material in the predetermined path of a sweeping member, the path being substantially in a plane spaced from a working surface of material. The member may be directed to sweep the excess material away through a successive number of sweeps, which may vary for each cross-section, at least a velocity which may vary for each sweep. Additionally, the clearance between the member and the surface of the previous cross-section may vary for each sweep. A "winged" member is also provided, comprising two legs extending from a base, and a "Trident" embodiment is also provided, comprising three legs extending from a base.Type: GrantFiled: December 17, 1996Date of Patent: April 6, 1999Assignee: 3D System, Inc.Inventors: Thomas A. Almquist, Charles W. Hull, Borzo Modrek, Paul F. Jacobs, Charles W. Lewis, Adam L. Cohen, Stuart T. Spence, Hop D. Nguyen, Mark A. Lewis, Abraham Liran, Dennis R. Smalley
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Patent number: 5870307Abstract: An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.Type: GrantFiled: June 7, 1995Date of Patent: February 9, 1999Assignee: 3D Systems, Inc.Inventors: Charles W. Hull, Stuart T. Spence, David J. Albert, Dennis R. Smalley, Richard A. Harlow, Phil Stinebaugh, Harry L. Tarnoff, Hop D. Nguyen, Charles W. Lewis, Tom J. Vorgitch, David Z. Remba
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Patent number: 5772947Abstract: An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being structurally specified to reduce curl, stress and distortion in the ultimately formed object, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.Type: GrantFiled: June 7, 1995Date of Patent: June 30, 1998Inventors: Charles W. Hull, Stuart T. Spence, Charles W. Lewis, Wayne Vinson, Raymond S. Freed, Dennis R. Smalley
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Patent number: 5651934Abstract: Apparatus and method for stereolithographically forming a three-dimensional object includes a vessel for holding a building material and a smoothing member for forming a uniform coating over a previously formed layer of the object. The smoothing member has a plurality of blades. The smoothing member is swept over a previously formed layer of the object, in at least two directions. Different clearances between the lower surface of the smoothing member and the upper surface of the previously formed layer are used to provide a uniform coating for a subsequent layer over the previously formed layer. The sweeping velocity of the smoothing member can be varied. Retractable needles are attached to the smoothing member for adjusting a blade gap between a lower surface of the smoothing member and the surface of the building material.Type: GrantFiled: March 13, 1995Date of Patent: July 29, 1997Assignee: 3D Systems, Inc.Inventors: Thomas A. Almquist, Charles W. Hull, Borzo Modrek, Paul F. Jacobs, Charles W. Lewis, Adam L. Cohen, Stuart T. Spence, Hop D. Nguyen
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Patent number: 5447822Abstract: An apparatus and related method for providing a substantially flat working surface of photocurable resin for the formation of a next layer of a stereolithographic part. A substantially flat surface of a rigid member is substantially covered by and spaced from the resin by a substance or film, which is placed in contact with the photocurable resin to form the working surface. Various embodiments are described including where the rigid member is a quartz including a fused silica plate, a bar, a vat wall, the face of a CRT, a fiber-optic bundle, or the bottom of a piston, and also including embodiments where the substance or film is a thin teflon or mylar film, an inert liquid, wax, a thin coating of trichlorosilane or ethoxysilane, or oxygen-saturated resin. Embodiments are also described whereby the next layer is exposed by transmitting solidifying radiation through the member and substance or film.Type: GrantFiled: April 20, 1994Date of Patent: September 5, 1995Assignee: 3D Systems, Inc.Inventors: Charles W. Hull, Adam L. Cohen, Stuart L. Spence, Charles W. Lewis
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Patent number: 5345391Abstract: An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.Type: GrantFiled: March 31, 1992Date of Patent: September 6, 1994Assignee: 3D Systems, Inc.Inventors: Charles W. Hull, Stuart T. Spence, David J. Albert, Dennis R. Smalley, Richard A. Harlow, Phil Stinebaugh, Harry L. Tarnoff, Hop D. Nguyen, Charles W. Lewis, Tom J. Vorgitch, David Z. Remba
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Patent number: 5273691Abstract: An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being structurally specified to reduce curl, stress and distortion in the ultimately formed object, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.Type: GrantFiled: April 14, 1992Date of Patent: December 28, 1993Assignee: 3D Systems, Inc.Inventors: Charles W. Hull, Stuart T. Spence, Charles W. Lewis, Wayne Vinson, Raymond S. Freed, Dennis R. Smalley
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Patent number: 5258146Abstract: Improved apparatus and methods for forming a layer of material over a surface of a previously-formed cross-section of a three-dimensional object in anticipation of forming a next cross-section of the object out of the layer. A volume of material, including at least some excess material, is placed over the surface, and the excess material is swept off by placing the excess material in the predetermined path of a sweeping member, the path being substantially in a plane spaced from a working surface of material. The member may be directed to sweep the excess material away through a successive number of sweeps, which may vary for each cross-section, at least a velocity which may vary for each sweep. Additionally, the clearance between the member and the surface of the previous cross-section may vary for each sweep. A "winged" member is also provided, comprising two legs extending from a base, and a "Trident" embodiment is also provided, comprising three legs extending from a base.Type: GrantFiled: May 6, 1992Date of Patent: November 2, 1993Assignee: 3D Systems, Inc.Inventors: Thomas A. Almquist, Borzo Modrek, Paul F. Jacobs, Charles W. Lewis, Mark A. Lewis, Abraham Liran, Adam L. Cohen, Dennis R. Smalley
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Patent number: 5184307Abstract: An improved stereolithography system for generating a three-dimensional object by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, information defining the object being specially processed to reduce curl and distortion, and increase resolution, strength, accuracy, speed and economy of reproduction even for rather difficult object shapes, the successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.Type: GrantFiled: March 31, 1989Date of Patent: February 2, 1993Assignee: 3D Systems, Inc.Inventors: Charles W. Hull, Stuart T. Spence, David J. Albert, Dennis R. Smalley, Richard A. Harlow, Phil Stinebaugh, Harry L. Tarnoff, Hop D. Nguyen, Charles W. Lewis, Tom J. Vorgitch, David Z. Remba
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Patent number: D801457Type: GrantFiled: June 13, 2016Date of Patent: October 31, 2017Inventor: Charles W. Lewis