Corning Incorporated

John Stone, Iii

Daniel Warren Hawtof

Pushkar Tandon

Venkata Adiseshaiah Bhagavatula

Gary Edward Merz

Xinghua Li

John Stephen Rosettie

Andrew Paul Schermerhorn

Steven Bruce Dawes

Douglas Llewellyn Butler

Elias Panides

John Forrest Wight, Jr

Kamjula Pattabhirami Reddy

Michael Thomas Murtagh

Xiaodong Robert Fu

David Francis Dawson-Elli

Amy L Rovelstad

Gautam Meda

Merrill F Sproul

Joseph M Whalen

William J Kiefer

James Michael Brown

Jonas Bankaitis

Shivalik Bakshi

Sean Thomas Miller

Kashyap Harshadlal Shah

Leo Young Zheng

Brian Charles Cook

Yujian Sun

Purushotam Kumar

Bruce Arthur Mourhess, Jr

James Westley Rogacki

Rick Charles Layton, Iii

Michael T Kelley

A spray coating apparatus that applies a coating material onto outer surfaces of glass objects includes a coating material source that includes a coating material. A spray nozzle assembly includes a spray nozzle fluidly connected to the coating material source. The spray nozzle is arranged and configured to direct the coating material in a first direction toward the glass object and provide an overspray amount of the coating material by the glass object such that the overspray amount bypasses a non-line of sight area of the glass object. A turn nozzle assembly includes a turn nozzle fluidly connected to a pressurized gas source. The turn nozzle is arranged and configured to direct pressurized gas in a second direction different than the first direction toward the non-line of sight area of the glass package to redirect the coating material onto the non-line of sight area.

Spray coating apparatuses with turn nozzle assemblies and methods of coating glass objects

A system and method for sintering a thin, high purity fused silica glass sheet having a thickness of 500 &#x3bc;m or less, includes a step of rastering a beam of a laser across a sheet of high purity fused silica soot; wherein a pattern of the rastering includes tightly spacing target locations on the sheet such that the laser sinters the soot and simultaneously forms tiny notches on a first major surface of the sheet when viewed in cross-section, wherein the tiny notches are crenellated such that at least some of the notches have generally flat bottom surfaces and at least some respective adjoining caps have generally plateau top surfaces offset from the bottom surfaces by steeply-angled sidewalls.

Laser system and method forming a high purity fused silica glass sheet with micro-crenellations

A system and method for making an edge section of a thin, high purity fused silica glass sheet. The method includes a step of directing a laser to melt through the glass sheet with localized heating of a narrow portion of the glass sheet to form an edge section of the glass sheet, and continuing the edge section to form a closed loop defining a perimeter of the glass sheet. The method further includes rapidly cooling the glass sheet through the glass transition temperature as the melted glass of the edge section contracts and/or solidifies to form an unrefined-bullnose shape extending between first and second major surfaces of the glass sheet.

Laser system and method forming an edge section of a high purity fused silica glass sheet

A multicore fiber is provided. The multicore fiber includes a plurality of cores spaced apart from one another, and a cladding surrounding the plurality of cores and defining a substantially rectangular or cross-sectional shape having four corners. Each corner has a radius of curvature of less than 1000 microns. The multicore fiber may be drawn from a preform in a circular draw furnace in which a ratio of a maximum cross-sectional dimension of the preform to an inside diameter of the preform to an inside diameter of the draw furnace is greater than 0.60. The multicore fiber may have maxima reference surface.

Non-circular multicore fiber and method of manufacture

A system and method for making a thin sintered silica sheet is provided. The method includes providing a soot deposition surface and forming a glass soot sheet by delivering a stream of glass soot particles from a soot generating device to the soot deposition surface. The method includes providing a sintering laser positioned to direct a laser beam onto the soot sheet and forming a sintered glass sheet from the glass soot sheet by delivering a laser beam from the sintering laser onto the glass soot sheet. The sintered glass sheet formed by the laser sintering system or method is thin, has low surfaces roughness and/or low contaminant levels.

Laser sintering system and method for forming high purity, low roughness silica glass

Disclosed are process and apparatus for making high purity fused silica glass materials. The process involves depositing soot particles onto an essentially planar deposition supporting surface and modulation of motion of the soot-generating device relative to the deposition supporting surface to result in a low local soot density variation. The apparatus is designed to implement the planar deposition process. The invention makes it possible to produce fused silica glass without the use of potentially contaminating refractory bricks.

Method and apparatus for making fused silica

A method of manufacturing an optical waveguide preform includes providing a first process gas atmosphere to a soot preform contained in a vessel. The first atmosphere is held in the vessel for a first reacting time sufficient to at least partially dope or dry the soot preform. The vessel is then at least partially refilled with a second doping or drying atmosphere. The second doping or drying atmosphere is held in the vessel for a second reacting time sufficient to further dope or dry the soot preform.

Methods and apparatus for pulsed doping or drying a soot preform

A method and apparatus for forming a hermetic seal between two substrates includes providing an electromagnetic absorbent sealing material perimetrically about a surface of one of the substrates. Furthermore, the illustrative method includes heating the sealing material. In addition, a package having a hermetic seal and apparati for disposing a sealing material are described.

Hermetically sealed package and method of fabricating of a hermetically sealed package

A burner module for delivering a flow of chemical reactants to a combustion site of a chemical vapor deposition process includes a plurality of substantially planar layers. The substantially planar layers are arranged in a generally parallel and fixed relationship and define an inlet, an outlet and a passage fluidly connecting the inlet and outlet. At least one of the layers is a distribution layer having a plurality of apertures therethrough and fluidly communicating with the passage. The plurality of apertures collectively define a non-uniform pattern arranged and configured to improve the uniformity of a flow out through the outlet. Burner adapter and assembly embodiments are also included.

Multi-layer burner module, adapter, and assembly therefor

The present invention is directed to a system and method for delivering liquid reactants through a burner assembly to form soot used in the manufacture of glass, and in particular, optical waveguides. Due to the tendency of liquid reactants to react to form solids when exposed to water in the air, an evaporative liquid is first delivered through the burner assembly to the combustion zone. Once steady state liquid flow has been achieved in the system, the evaporative liquid is transitioned to the liquid reactant. The liquid reactant is delivered along the same path to the burner assembly, which discharges the liquid reactant into the combustion zone as an atomized liquid to form soot used in the manufacture of glass. Once the desired quantity of soot has been formed, the liquid reactant is transitioned back to the evaporative liquid while maintaining steady state flow. After the liquid reactant has cleared the system, flow of the evaporative liquid is terminated and the burner assembly flame turned off. Because the evaporative liquid is the last liquid to leave the burner assembly, no reactants are present to form solids and the burner assembly remains plug free. Preferably, the liquid reactants are housed within a dry environment to provide a reaction free area for staging the liquid reactants prior to delivery, thus facilitating and expediting multiple system runs with different liquid reactants.

Maintaining a plug-free system during a silica soot creation process

A burner manifold apparatus ( ) for delivering reactants to a combustion site of a chemical vapor deposition process includes fluid inlets ( ), fluid outlets ( ), and a plurality of fluid passages ( ) extending therebetween. The fluid passages ( ) converge toward each other from the fluid inlets to the fluid outlets. One embodiment includes a manifold base ( ), a pressure plate ( ), and a manifold burner mount ( ) for mounting thereto a micromachined burner ( ). The fluid passages ( ) internal to the manifold base are configured to distribute symmetrically the fluid to the manifold burner mount. The fluid is then channeled through fluid passages in the manifold burner mount. The fluid passages converge, yet remain fluidly isolated from each other, and the fluid passages create a linear array for producing linear streams of fluid. Alternatively, the burner manifold apparatus may include a plurality of manifold elements in a stacked arrangement. In this alternative embodiment, the manifold elements are configured to produce a linear array of fluid passages at the top of the stack, increasing the number of fluid passages at each level of the stack closer to the top. As yet a further alternative, the burner manifold may be produced by extruding a particulate composite through a die to produce a manifold having fluid passages therein. This extruded manifold generally has a tapered section to which a burner may be mounted.

Burner manifold apparatus for use in a chemical vapor deposition process

The present invention is directed to a method and apparatus for forming soot used in making glass, and in particular, optical waveguides. A liquid precursor ( ) is first fed into orifice ( ) of a liquid orifice insert ( ) within an injector ( ) positioned within an atomizing burner assembly, and is thereafter discharged from the injector into a pressurization chamber ( ). An atomization gas ( ) is also fed into the pressurization chamber ( ) to mix with the liquid precursor liquid stream ( ) which breaks into droplets ( ). The liquid precursor and atomization gas arm forced under pressure out of an atomization orifice ( ) on the face of the burner ( ) assembly. Flame gas ( ), reaction gas ( ) and shield gas ( ) are ejected from burner orifices ( and ) to produce the flame. The atomized liquid precursor thus discharged is fed into the flame ( ) produced at the face of the burner assembly where the atomized liquid precursor reacts with the flame to form soot ( ) on a rotating mandrel ( ).

Growing community of inventors

Painted Post, NY, United States of America

John Stone, Iii