Corning Incorporated

Ralph Henry Hagg

Thomas Richard Chapman

Jacob George

Amit Halder

Huthavahana Kuchibhotla Sarma

Parasuram Padmanabhan Harihara

John Paul Bir Singh

Srinivasa Rao Vaddiraju

Leon Robert Zoeller, Iii

Robert Daniel Parker

Yihong Mauro

Derik Alan Bruins

Luiz Eduardo Ferri

Michael C Brown

Jeffrey G Payne

A control system for an axial skinning apparatus (), including: &#x2022;a force to cause a ceramic honeycomb part () to pass through the skinning apparatus (); &#x2022;a force that urges flowable cement on to the ceramic honeycomb part (); &#x2022;a sensor to detect the force on the cement; &#x2022;a sensor to detect the force on the ceramic part; and &#x2022;a controller () which receives: &#x2022;a signal from the sensor on the flowable cement, &#x2022;a signal from the sensor on the ceramic part (), or both, and the controller () controls the pressure set point () of the cement source based on one or both of the received signals, and the controller () adjusts control parameters using feedback control and pseudo feed forward control. A method of using the axial skinning apparatus () is also disclosed.

Method and system for control of an axial skinning apparatus

Disclosed is a ceramic honeycomb structure comprising a honeycomb body and a multilayered outer layer formed of a thick core layer applied and rapidly dried and a thin clad layer dried more gently to form a crack free dual skin layer. The core layer may have properties that are closer to those of the ceramic honeycomb body in service than the clad layer that may provide a tough outer shell to withstand handling and assembly.

Method for making a honeycomb structure comprising coating a honeycomb body with cement skin layers

A process for operating an axial skinning apparatus for continuous manufacture of skinned ceramic honeycomb parts, including: 

Process for axial skinning apparatus

Honeycomb structure comprising a multilayer cement skin

Honeycomb ceramic wall flow filters exhibiting reduced plug depth variability, produced by introducing flowable ceramic plugging cements into the ends of selected channels in the honeycombs and wherein the ceramic plugging cements consist of shear-conditioned mixtures exhibiting reduced viscosity differentials.

Method for manufacturing ceramic filter

A plugging apparatus for plugging channels in a honeycomb structure used to form a particulate filter. The apparatus includes an extrusion apparatus that holds plugging material and that has an opening through which the plugging material is extruded. An extrusion plate having first through holes that correspond in location to a subset of honeycomb channels is arranged adjacent the opening. An annular flow plate is operatively arranged face-to-face with the extrusion plate. The annular flow plate has second through holes corresponding in location to the first through holes but that are smaller to compensate for a radial variation in the extrusion rate when plugging the channels in the honeycomb structure. The plugging apparatus is thus able to fill select channel ends with same-size plugs, which leads to a better-performing filter.

Methods and apparatus for plugging honeycomb structures

A method for inspecting the integrity of diesel exhaust filter by introducing air under pressure through one end of the structure and detecting the presence of air flow at an opposing end surface. The diesel exhaust filter is tested green.

Growing community of inventors

Corning, NY, United States of America

Ralph Henry Hagg