Patents by Inventor John N. Snyder

John N. Snyder 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).

  • Rotary kiln heat exchanger and method of assembling same
    Patent number: 6688884
    Abstract: Rotary kiln heat exchangers having precast hub and leg assemblies are disclosed. The hub and leg assemblies include interlocking features which secure the heat exchanger components together. A method of installing such heat exchangers in rotary kilns is also disclosed. Installation is relatively fast and simple, and the heat exchangers are capable of withstanding the harsh operating conditions of rotary kilns for extended periods of time.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: February 10, 2004
    Assignee: Harbison-Walker Refractories Company
    Inventors: John Thibault, John Stephansky, John N. Snyder
  • ROTARY KILN HEAT EXCHANGER AND METHOD OF ASSEMBLING SAME
    Publication number: 20030228551
    Abstract: Rotary kiln heat exchangers having precast hub and leg assemblies are disclosed. The hub and leg assemblies include interlocking features which secure the heat exchanger components together. A method of installing such heat exchangers in rotary kilns is also disclosed. Installation is relatively fast and simple, and the heat exchangers are capable of withstanding the harsh operating conditions of rotary kilns for extended periods of time.
    Type: Application
    Filed: June 6, 2002
    Publication date: December 11, 2003
    Applicant: Harbison-Walker Refractories Company
    Inventors: John Thibault, John Stephansky, John N. Snyder
  • Offsetting interlocking tie-back assembly
    Patent number: 5361557
    Abstract: A brick for use in a high temperature furnace, or the like, having a body portion with at least one tongue and groove pair in at least one of the body surfaces with anchor means formed integrally with the body portion. Tie-back brick assemblies are formed by mating at least two of such brick and clamping them together.A lining for use in such furnaces is formed by using such tie-back assemblies with conventionally shaped brick.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: November 8, 1994
    Assignee: Indresco Inc.
    Inventors: John N. Snyder, Stanley A. Smith
  • Aluminum reverberatory furnace lining
    Patent number: 4900249
    Abstract: A lining for use in an aluminum reverberatory furnace or the like for heating molten aluminum in a cavity which cavity is formed by a roof, sidewalls and a bottom which are to be lined with refractory materials. The lining comprises a band of hot face refractory material around the interior periphery of the cavity sidewalls for contacting molten aluminum in the furnace at the normal operating levels of the upper surface of the molten aluminum. A layer of backup refractory material is interposed between the furnace shell and the band of hot face refractory material.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: February 13, 1990
    Assignee: Dresser Industries, Inc.
    Inventors: John M. McCollum, John N. Snyder
  • Rotary kiln heat exchanger and method of assembling same
    Patent number: RE44612
    Abstract: Rotary kiln heat exchangers having precast hub and leg assemblies are disclosed. The hub and leg assemblies include interlocking features which secure the heat exchanger components together. A method of installing such heat exchangers in rotary kilns is also disclosed. Installation is relatively fast and simple, and the heat exchangers are capable of withstanding the harsh operating conditions of rotary kilns for extended periods of time.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: November 26, 2013
    Assignee: Harbison-Walker Refractories Company
    Inventors: John Thibault, John J. Stephansky, John N. Snyder