Patents by Inventor Andrew P. Mitchell
Andrew P. Mitchell 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: 7244087Abstract: The present invention is directed to a system and a method to unload bulk powders from large bulk containers. The system and method are particularly useful for unloading bulk cohesive powders.Type: GrantFiled: August 8, 2005Date of Patent: July 17, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Catherine Marie Wilson, Timothy Allan Bell, John D. Connolly, Jr., Peter Carl Clark, Andrew P. Mitchell, James E. Mothersbaugh
-
Patent number: 7229242Abstract: The present invention is directed to a system and a method to unload bulk powders from large bulk containers. The system and method are particularly useful for unloading bulk cohesive powders.Type: GrantFiled: August 3, 2005Date of Patent: June 12, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Timothy Allan Bell, Peter Carl Clark, John D. Connolly, Jr., Catherine Marie Wilson, Andrew P. Mitchell, James E. Mothersbaugh
-
Patent number: 6502689Abstract: An apparatus for conveying bulk material generally consisting of a support, a guide member defining a passageway providing a circuitous path, having a base section supported on the support and a section cantilevered relative to the support; at least two sprockets disposed in such passageway and rotatably supported on the guide member, one of such sprockets being disposed in the cantilevered section of the guide member and having a substantially vertically disposed axis of rotation; a rope assembly including an endless rope disposed in the passageway along the circuitous path and reeved around the sprockets, and a plurality of discs spaced along such rope, and a motor for driving one of the sprockets, wherein the guide member includes a inlet communicating with the passageway for feeding material therein and a discharge outlet communicating with the passageway about a portion of the periphery of the one socket.Type: GrantFiled: January 24, 2002Date of Patent: January 7, 2003Assignee: The Young Industries, Inc.Inventors: Andrew P. Mitchell, Richard W. Ambs, Todd E. Kaufman
-
Patent number: 6503042Abstract: An apparatus for conveying bulk material generally consisting of a support, a guide member defining a passageway providing a circuitous path, having a base section supported on the support and a section cantilevered relative to the support; at least two sprockets disposed in such passageway and rotatably supported on the guide member, one of such sprockets being disposed in the cantilevered section of the guide member and having a substantially vertically disposed axis of rotation; a rope assembly including an endless rope disposed in the passageway along the circuitous path and reeved around the sprockets, and a plurality of discs spaced along such rope, and a motor for driving one of the sprockets, wherein the guide member includes a inlet communicating with the passageway for feeding material therein and a discharge outlet communicating with the passageway about a portion of the periphery of the one socket.Type: GrantFiled: January 24, 2002Date of Patent: January 7, 2003Assignee: The Young Industries, Inc.Inventors: Andrew P. Mitchell, Richard W. Ambs, Todd E. Kaufman
-
Patent number: 6499927Abstract: An apparatus for conveying bulk material generally consisting of a support, a guide member defining a passageway providing a circuitous path, having a base section supported on the support and a section cantilevered relative to the support; at least two sprockets disposed in such passageway and rotatably supported on the guide member, one of such sprockets being disposed in the cantilevered section of the guide member and having a substantially vertically disposed axis of rotation; a rope assembly including an endless rope disposed in the passageway along the circuitous path and reeved around the sprockets, and a plurality of discs spaced along such rope, and a motor for driving one of the sprockets, wherein the guide member includes a inlet communicating with the passageway for feeding material therein and a discharge outlet communicating with the passageway about a portion of the periphery of the one socket.Type: GrantFiled: January 24, 2002Date of Patent: December 31, 2002Assignee: The Young Industries, Inc.Inventors: Andrew P. Mitchell, Richard W. Ambs, Todd E. Kaufman
-
Patent number: 6499585Abstract: An apparatus for conveying bulk material generally consisting of a support, a guide member defining a passageway providing a circuitous path, having a base section supported on the support and a section cantilevered relative to the support; at least two sprockets disposed in such passageway and rotatably supported on the guide member, one of such sprockets being disposed in the cantilevered section of the guide member and having a substantially vertically disposed axis of rotation; a rope assembly including an endless rope disposed in the passageway along the circuitous path and reeved around the sprockets, and a plurality of discs spaced along such rope, and a motor for driving one of the sprockets, wherein the guide member includes a inlet communicating with the passageway for feeding material therein and a discharge outlet communicating with the passageway about a portion of the periphery of the one socket.Type: GrantFiled: January 24, 2002Date of Patent: December 31, 2002Assignee: The Young Industries, Inc.Inventors: Andrew P. Mitchell, Richard W. Ambs, Todd E. Kaufman
-
Publication number: 20020127066Abstract: An apparatus for conveying bulk material generally consisting of a support, a guide member defining a passageway providing a circuitous path, having a base section supported on the support and a section cantilevered relative to the support; at least two sprockets disposed in such passageway and rotatably supported on the guide member, one of such sprockets being disposed in the cantilevered section of the guide member and having a substantially vertically disposed axis of rotation; a rope assembly including an endless rope disposed in the passageway along the circuitous path and reeved around the sprockets, and a plurality of discs spaced along such rope, and a motor for driving one of the sprockets, wherein the guide member includes a inlet communicating with the passageway for feeding material therein and a discharge outlet communicating with the passageway about a portion of the periphery of the one socket.Type: ApplicationFiled: January 24, 2002Publication date: September 12, 2002Inventors: Andrew P. Mitchell, Richard W. Ambs, Todd E. Kaufman
-
Publication number: 20020127065Abstract: An apparatus for conveying bulk material generally consisting of a support, a guide member defining a passageway providing a circuitous path, having a base section supported on the support and a section cantilevered relative to the support; at least two sprockets disposed in such passageway and rotatably supported on the guide member, one of such sprockets being disposed in the cantilevered section of the guide member and having a substantially vertically disposed axis of rotation; a rope assembly including an endless rope disposed in the passageway along the circuitous path and reeved around the sprockets, and a plurality of discs spaced along such rope, and a motor for driving one of the sprockets, wherein the guide member includes a inlet communicating with the passageway for feeding material therein and a discharge outlet communicating with the passageway about a portion of the periphery of the one socket.Type: ApplicationFiled: January 24, 2002Publication date: September 12, 2002Inventors: Andrew P. Mitchell, Richard W. Ambs, Todd E. Kaufman
-
Publication number: 20020127063Abstract: An apparatus for conveying bulk material generally consisting of a support, a guide member defining a passageway providing a circuitous path, having a base section supported on the support and a section cantilevered relative to the support; at least two sprockets disposed in such passageway and rotatably supported on the guide member, one of such sprockets being disposed in the cantilevered section of the guide member and having a substantially vertically disposed axis of rotation; a rope assembly including an endless rope disposed in the passageway along the circuitous path and reeved around the sprockets, and a plurality of discs spaced along such rope, and a motor for driving one of the sprockets, wherein the guide member includes a inlet communicating with the passageway for feeding material therein and a discharge outlet communicating with the passageway about a portion of the periphery of the one socket.Type: ApplicationFiled: January 24, 2002Publication date: September 12, 2002Inventors: Andrew P. Mitchell, Richard W. Ambs, Todd E. Kaufman
-
Patent number: 6415909Abstract: An apparatus for conveying bulk material generally consisting of a support and a guide means defining a passageway. The passageway has a vertical section and a horizontal section cantilevered to the vertical section. A endless rope assembly passes around the passageway. Disc are displaced along the rope to catch and transfer bulk material along the passageway. The bulk material is injected into the passageway at the lower end of the vertical section and is ejected at the end of the horizontal section. A motor drives sprockets located at the ends of the passageway and at the cantilevered portion. Such guide means may consist of a single passageway or a pair of passageways of differing lengths, and such support may be movable on wheels.Type: GrantFiled: July 7, 2000Date of Patent: July 9, 2002Assignee: The Young Industries, Inc.Inventors: Andrew P. Mitchell, Richard W. Ambs, Todd E. Kaufman
-
Patent number: 5070910Abstract: A diverter valve adapted for use in a pneumatic conveying system for transporting bulk materials comprising a housing having a chamber provided with a cylindrical wall, the cylindrical wall having an inlet port communicating with an inlet passageway in the housing and first and second outlet ports communicating with first and second passageways in the housings, respectively, a rotor disposed in the chamber and having a cylindrical wall disposed in opposed relation to the chamber cylindrical wall, the rotor cylindrical wall having first and second ports and an intercommunicating passageway, the rotor ports being spaced apart a sufficient distance whereby upon the rotor being rotated into a first position relative to the housing, the first rotor port will register with the housing inlet port and the second rotor port will register with the first housing outlet port to intercommunicate the housing inlet passageway with the first housing outlet passageway, and upon the rotor being rotated into a second position rType: GrantFiled: April 30, 1991Date of Patent: December 10, 1991Assignee: The Young Industries, Inc.Inventors: James E. Mothersbaugh, Galen S. Ingram, Andrew P. Mitchell