Patents by Inventor Duane F. Nagel
Duane F. Nagel 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).
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Patent number: 8066240Abstract: A multi-configurable furniture assembly including height adjustable legs, a height adjustable pedestal support structure, a variable height foot support for cabinets and shelves and a panel wall assembly where each of the separate assemblies have finished and high quality appearances after a configuration is constructed.Type: GrantFiled: March 2, 2007Date of Patent: November 29, 2011Assignee: Steelcase Inc.Inventors: Duane F. Nagel, Joylene M. Battey
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Patent number: 8037642Abstract: A multi-configurable furniture assembly including height adjustable legs, a height adjustable pedestal support structure, a variable height foot support for cabinets and shelves and a panel wall assembly where each of the separate assemblies have finished and high quality appearances after a configuration is constructed.Type: GrantFiled: March 6, 2007Date of Patent: October 18, 2011Assignee: Steelcase Inc.Inventors: Duane F. Nagel, Joylene M. Battey, Anthony A. Stachowiak
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Patent number: 7866268Abstract: A multi-configurable furniture assembly including height adjustable legs, a height adjustable pedestal support structure, a variable height foot support for cabinets and shelves and a panel wall assembly where each of the separate assemblies have finished and high quality appearances after a configuration is constructed.Type: GrantFiled: March 6, 2007Date of Patent: January 11, 2011Assignee: Steelcase Inc.Inventors: Duane F. Nagel, Joylene M. Battey
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Publication number: 20080010935Abstract: A multi-configurable furniture assembly including height adjustable legs, a height adjustable pedestal support structure, a variable height foot support for cabinets and shelves and a panel wall assembly where each of the separate assemblies have finished and high quality appearances after a configuration is constructed.Type: ApplicationFiled: March 6, 2007Publication date: January 17, 2008Inventors: Duane F. Nagel, Joylene M. Battey, Anthony A. Stachowiak
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Publication number: 20070215765Abstract: A multi-configurable furniture assembly including height adjustable legs, a height adjustable pedestal support structure, a variable height foot support for cabinets and shelves and a panel wall assembly where each of the separate assemblies have finished and high quality appearances after a configuration is constructed.Type: ApplicationFiled: March 2, 2007Publication date: September 20, 2007Inventors: Duane F. Nagel, Joylene M. Battey
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Publication number: 20070204771Abstract: A multi-configurable furniture assembly including height adjustable legs, a height adjustable pedestal support structure, a variable height foot support for cabinets and shelves and a panel wall assembly where each of the separate assemblies have finished and high quality appearances after a configuration is constructed.Type: ApplicationFiled: March 6, 2007Publication date: September 6, 2007Inventors: Duane F. Nagel, Joylene M. Battey
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Patent number: 6554364Abstract: An armrest structure includes a support and a body rotatably mounted on the support. The support includes a pair of protrusions and the body includes a notched channel for receiving the protrusions. By rotating the body on the support, the protrusions are repositioned in the notched channel between selected stable use positions. The notches are located on both sides of the channel such that the body can be located in a first position with the first surface on the body facing generally upwardly for use, and a second position with the second surface on the body facing generally upwardly for use. By varying the surfaces on the body, and also the engagement of the protrusion with the notched channel, various spacial positions and functional surfaces can be selectively positioned for use.Type: GrantFiled: February 17, 1995Date of Patent: April 29, 2003Assignee: Steelcase Development CorporationInventors: Arnold B. Dammermann, David A. Bodnar, Michael L. Deimen, Thomas R. Hahn, Duane F. Nagel, Charles P. Roossien, David L. Rundhaug, David S. Teppo
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Patent number: 6099076Abstract: A chair includes a base, a seat operably supported on the base for depth adjustment, and a back operably supported by an upright that extends from the base for recline. The back includes a structural back support, a rear cover covering a rear side of the back support, and a front/lower concave cover covering the upright between a rear of the seat and below the back support to provide a one-piece back and seat appearance. The concave cover defines a concavity shaped to receive a rear of the seat to facilitate depth adjustment, but so that the one-piece back and seat appearance is maintained. The concave cover further includes upwardly extending tabs that engage a lower marginal edge of the back support to facilitate assembly.Type: GrantFiled: November 19, 1999Date of Patent: August 8, 2000Assignee: Steelcase Development Inc.Inventors: Duane F. Nagel, Daniel P. Beemer, Dale M. Groendal, Jeffrey A. Hall, Edward L. Tyler
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Patent number: 6062649Abstract: A chair includes a base, a seat operably supported on the base for depth adjustment, and a back operably supported by an upright that extends from the base for recline. The back includes a structural back support, a rear cover covering a rear side of the back support, and a front/lower concave cover covering the upright between a rear of the seat and below the back support to provide a one-piece back and seat appearance. The concave cover defines a concavity shaped to receive a rear of the seat to facilitate depth adjustment, but so that the one-piece back and seat appearance is maintained. The concave cover further includes upwardly extending tabs that engage a lower marginal edge of the back support to facilitate assembly.Type: GrantFiled: March 3, 1998Date of Patent: May 16, 2000Assignee: Steelcase Development Inc.Inventors: Duane F. Nagel, Daniel P. Beemer, Dale M. Groendal, Jeffrey A. Hall, Edward L. Tyler
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Patent number: 5842264Abstract: A structural support shell for a tilt-back chair has a back portion, a seat portion, and a flexible compression zone extending between the back and seat portions in an integrally molded, one-piece unit. The chair has a base with a recline control pivoting recline control lever. The seat portion of the shell is fixed to the base and the back portion of the shell is fixed to the recline control lever. The flexible compression zone provides a simplified construction for an ergonomic chair design having an effective axis of rotation between the back portion and seat portion which is located above the seat portion, forward of the back portion, and generally adjacent to the hip joints of a seated user. The chair includes side arms that laterally and then rotatably engage side arm supporting connectors on the chair to facilitate assembly. The chair further includes a one-piece shell having tabs for mateably engaging flanges on the chair seat and back to also facilitate assembly.Type: GrantFiled: August 27, 1997Date of Patent: December 1, 1998Assignee: Steelcase Inc.Inventors: Charles P. Roossien, David C. Pugh, Dale M. Groendal, James E. Massey, Robert M. Scheper, Duane F. Nagel, Bruce M. Smith, Douglas A. Smith, Brian L. Scholten
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Patent number: 5662381Abstract: A structural support shell for a tilt-back chair has a back portion, a seat portion, and a flexible compression zone extending between the back and seat portions in an integrally molded, one-piece unit. The chair has a base with a recline control pivoting recline control lever. The seat portion of the shell is fixed to the base and the back portion of the shell is fixed to the recline control lever. The flexible compression zone provides a simplified construction for an ergonomic chair design having an effective axis of rotation between the back portion and seat portion which is located above the seat portion, forward of the back portion, and generally adjacent to the hip joints of a seated user. The chair includes side arms that laterally and then rotatably engage side arm supporting connectors on the chair to facilitate assembly. The chair further includes a one-piece shell having tabs for mateably engaging flanges on the chair seat and back to also facilitate assembly.Type: GrantFiled: June 6, 1995Date of Patent: September 2, 1997Assignee: Steelcase Inc.Inventors: Charles P. Roossien, David C. Pugh, Dale M. Groendal, James E. Massey, Robert M. Scheper, Duane F. Nagel, Bruce M. Smith, Douglas A. Smith, Brian L. Scholten
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Patent number: 5318346Abstract: A structural support shell for a tilt-back chair has a back portion, a seat portion, and a flexible compression zone extending between the back and seat portions in an integrally molded, one-piece unit. The chair has a base with a recline control and pivoting recline control lever. The seat portion of the shell is fixed to the base and the back portion of the shell is fixed to the recline control lever. The flexible compression zone provides a simplified construction for an ergonomic chair design having an effective axis of rotation between the back portion and seat portion which is located above the seat portion, forward of the back portion, and generally adjacent to the hip joints of a seated user.Type: GrantFiled: April 30, 1993Date of Patent: June 7, 1994Assignee: Steelcase Inc.Inventors: Charles P. Roossien, David C. Pugh, Dale M. Groendal, James E. Massey, Robert M. Scheper, Daniel P. Beemer, James P. Steffens, Duane F. Nagel, Bruce M. Smith, Douglas A. Smith