Patents by Inventor Herman W. Griffin

Herman W. Griffin 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).

  • Patent number: 6532985
    Abstract: An apparatus for maintaining the temperature of material contained in fluid conveying devices. The apparatus may include an enclosure having an improved door, mounting bracket, locking mechanism, heating device and a secure structure for accessing the upper portion of the enclosure. An alignment guide and integral tabs are also disclosed which facilitate assembly of the enclosure.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: March 18, 2003
    Assignee: Griffin & Cantrell Company, Inc.
    Inventors: Herman W. Griffin, Edgar L. Cantrell
  • Patent number: 6311720
    Abstract: An apparatus for protecting fluid conveying devices and for maintaining the temperature of material contained therein. The apparatus includes a cover that encloses a fluid conveying device and a drain channel that may be removable and is supportable upon a surface, fabricated support, or the cover itself. A rod may be adapted to releasably maintain the cover in place. Heating elements may be included within the drain channel or enclosure to maintain the temperature of the material and the fluid conveying devices surrounding the material above a predetermined setpoint. The drain channel may employ a suitable valve or valves to facilitate the removal of discharged material from the enclosure. Adjustable forms are included that support the drain channel and provide the perimeter for a concrete slab.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: November 6, 2001
    Assignee: Griffin & Cantrell Company, Inc.
    Inventors: Herman W. Griffin, Edgar L. Cantrell
  • Patent number: 6293301
    Abstract: An apparatus for maintaining the temperature of material contained in fluid conveying devices. The apparatus may include an enclosure having an improved door, mounting bracket, locking mechanism, heating device and a secure structure for accessing the upper portion of the enclosure. An alignment guide and integral tabs are also disclosed which facilitate assembly of the enclosure. A shield-support-bottom enclosure, which allows greater access for maintenance, is disclosed.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: September 25, 2001
    Assignee: Griffin & Cantrell Company, Inc.
    Inventors: Herman W. Griffin, Edgar L. Cantrell
  • Publication number: 20010018926
    Abstract: An apparatus for maintaining the temperature of material conveyed through fluid conveying devices. The apparatus may include an enclosure having an improved door, mounting bracket, locking mechanism, heating device and a secure structure for accessing the upper portion of the enclosure. An alignment guide and integral tabs are also disclosed which facilitate assembly of the enclosure. The apparatus may include an enclosure supported upon a chase or chases, which may extend from the enclosure downwardly to the frost line. Heating elements may be included within the chase(s) or enclosure to maintain the temperature of the material and the fluid conveying devices surrounding the material above a predetermined setpoint all the way to the frost line. The enclosure may employ a suitable valve to facilitate the removal of discharged material from the enclosure in applications where the fluid conveying device discharges material to the atmosphere.
    Type: Application
    Filed: December 28, 2000
    Publication date: September 6, 2001
    Inventors: Herman W. Griffin, Edgar L. Cantrell
  • Patent number: 6021804
    Abstract: An apparatus for protecting fluid conveying devices and for maintaining the temperature of material contained therein. The apparatus includes a cover that encloses a fluid conveying device and a drain channel that may be removable and is supportable upon a surface, fabricated support, or the cover itself. A rod may be adapted to releasably maintain the cover in place. Heating elements may be included within the drain channel or enclosure to maintain the temperature of the material and the fluid conveying devices surrounding the material above a predetermined setpoint. The drain channel may employ a suitable valve or valves to facilitate the removal of discharged material from the enclosure. Adjustable forms are included that support the drain channel and provide the perimeter for a concrete slab.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: February 8, 2000
    Assignee: Griffin & Cantrell Company, Inc.
    Inventors: Herman W. Griffin, Edgar L. Cantrell
  • Patent number: 5996611
    Abstract: An apparatus for maintaining the temperature of material contained in fluid conveying devices. The apparatus may include an enclosure having an improved door, mounting bracket, locking mechanism, heating device and a secure structure for accessing the upper portion of the enclosure. An alignment guide and integral tabs are also disclosed which facilitate assembly of the enclosure.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: December 7, 1999
    Assignee: Griffin & Cantrell Co., Inc.
    Inventors: Herman W. Griffin, Edgar L. Cantrell
  • Patent number: 5743289
    Abstract: An apparatus for maintaining the temperature of material contained in fluid conveying devices. The apparatus may include a cover that encloses a fluid conveying device and a drain channel that is supported upon a surface, such as a concrete slab. Heating elements may be included within the drain channel or enclosure to maintain the temperature of the material and the fluid conveying devices surrounding the material above a predetermined setpoint. The drain channel may employ a suitable valve or valves to facilitate the removal of discharged material from the enclosure in applications where the fluid conveying device discharges material to the atmosphere. Adjustable forms are included that support the drain channel and provide the perimeter for a concrete slab.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: April 28, 1998
    Assignee: Griffin & Cantrell Co., Inc.
    Inventors: Herman W. Griffin, Edgar L. Cantrell
  • Patent number: 5740832
    Abstract: An apparatus for maintaining the temperature of material conveyed through fluid conveying devices. The apparatus may include an enclosure supported upon a chase or chases, which may extend from the enclosure downwardly to the frost line. Heating elements may be included within the chase(s) or enclosure to maintain the temperature of the material and the fluid conveying devices surrounding the material above a predetermined setpoint all the way to the frost line. The enclosure may employ a suitable valve to facilitate the removal of discharged material from the enclosure in applications where the fluid conveying device discharges material to the atmosphere.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: April 21, 1998
    Assignee: Griffin & Cantrell Company, Inc.
    Inventors: Herman W. Griffin, Edgar L. Cantrell