Patents by Inventor Donald Chadwick
Donald Chadwick 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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Publication number: 20150351549Abstract: A stool having a center column connecting a domed base and a domed seat is disclosed. The domed seat and/or the domed base may be resiliently deformable during use to provide a user with a “bouncing” sensation. The domed seat and/or domed base also may define or contain inflatable or fillable bladders to give them shape and/or provide the aforementioned “bouncing” sensation. The distance between the domed seat and domed base may be varied in some embodiments to adjust the height of the stool.Type: ApplicationFiled: June 5, 2014Publication date: December 10, 2015Applicant: Humanscale CorporationInventors: Donald Chadwick, Jeffrey Koffman, Todd Brunner, Gregory P. Allison
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Patent number: 7594700Abstract: A chair includes a control housing, a seat and a back support including an upwardly extending upright portion and a link portion extending forwardly from a lower portion of the upright portion. The link portion is pivotally connected to the control housing about a first pivot axis. The seat is connected to the link portion and is pivotable relative thereto. A linkage is coupled to the seat and is pivotally connected to the control housing at a second pivot axis positioned rearwardly and downwardly from the first pivot axis.Type: GrantFiled: August 24, 2005Date of Patent: September 29, 2009Assignee: Herman Miller, Inc.Inventors: William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Maalouf, Timothy P. Coffield, Randy J. Sayers, Jeffrey W. Bruner, Eric Cammenga
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Publication number: 20060071523Abstract: A chair includes a control housing, a seat and a back support including an upwardly extending upright portion and a link portion extending forwardly from a lower portion of the upright portion. The link portion is pivotally connected to the control housing about a first pivot axis. The seat is connected to the link portion and is pivotable relative thereto. A linkage is coupled to the seat and is pivotally connected to the control housing at a second pivot axis positioned rearwardly and downwardly from the first pivot axis.Type: ApplicationFiled: August 24, 2005Publication date: April 6, 2006Inventors: William Stumpf, Rodney Schoenfelder, Donald Chadwick, Carolyn Maalouf, Timothy Coffield, Randy Sayers, Jeffrey Bruner, Eric Cammenga
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Publication number: 20060006715Abstract: A chair having a seat rotatably attached to a tilt spring portion of a tilt mechanism such that the tilt spring is activated by movement of the seat. A backrest and/or the seat can be rotatably connected to the tilt mechanism by parallel arm arrangements which permit the seat and backrest to tilt relative to each other. A tilt limiter can have a magnetic member which facilitates full movement of the tilt limiter between free and locked positions, and which creates an audible indication of full movement of the tilt limiter. The seat/backrest can be made from a flexible mesh material secured to a rigid overmolding which surrounds and is attached to an inner frame of the seat/backrest wherein an outer surface of the overmolding forms an outer surface of the seat/backrest frame and attachment of the overmolding causes the inner frame to stretch the mesh to a final condition.Type: ApplicationFiled: July 8, 2005Publication date: January 12, 2006Inventors: Donald Chadwick, Arkady Golynsky, Robert Melhuish, Hendrik van Hekken, Ron Watson
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Patent number: 6966604Abstract: A chair includes a control housing, a seat and a back support including an upwardly extending upright portion and a link portion extending forwardly from a lower portion of the upright portion. The link portion is pivotally connected to the control housing about a first pivot axis. The seat is connected to the link portion and is pivotable relative thereto. A linkage is coupled to the seat and is pivotally connected to the control housing at a second pivot axis positioned rearwardly and downwardly from the first pivot axis.Type: GrantFiled: February 5, 2004Date of Patent: November 22, 2005Assignee: Herman Miller, Inc.Inventors: William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers, Jeffrey W. Bruner, George A. Miles, Eric Cammenga, Philip Crossman
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Publication number: 20040189073Abstract: A desk chair that is adjustable to accommodate a variety of different body sizes and shapes, and particularly to accommodate changes in body size and shape of children over several years between young childhood and adulthood. The chair includes a seat, a back support, and a pair of arm rests on opposite sides of the seat. The chair has adjustment mechanisms that allow the chair to be adjusted in several different ways, including the depth of the seat, the heights of the back support and the arm rests, and the positions of the arm rests in a substantially lateral plane relative to the seat and the back support. The chair also has a mechanism for adjusting the height of the seat over a range which is especially adapted for growing children, which results from positioning a height control adjustment mechanism substantially entirely within a support base for the chair, extending downwardly between the legs.Type: ApplicationFiled: March 28, 2003Publication date: September 30, 2004Inventors: Donald Chadwick, Francisco Romero
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Publication number: 20040155503Abstract: A chair includes a control housing, a seat and a back support including an upwardly extending upright portion and a link portion extending forwardly from a lower portion of the upright portion. The link portion is pivotally connected to the control housing about a first pivot axis. The seat is connected to the link portion and is pivotable relative thereto. A linkage is coupled to the seat and is pivotally connected to the control housing at a second pivot axis positioned rearwardly and downwardly from the first pivot axis.Type: ApplicationFiled: February 5, 2004Publication date: August 12, 2004Applicant: HERMAN MILLER, INC.Inventors: William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers, Jeffrey W. Bruner, George A. Miles, Eric Cammenga, Philip Crossman
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Patent number: 6733080Abstract: A seating structure includes a backrest having a top and bottom and includes a frame. The frame includes a pair of spaced apart side members defining an opening therebetween. Each of the side members has a length. A flexible membrane extends between and is attached to the side members across the opening. An armrest is moveably mounted to each of the side members. Each of the armrests is adjustably moveable along at least a portion of the length of the side members between at least a first position and a second position. The first position is closer to the bottom of the backrest than the second position. A method of adjusting the seating structure is also provided.Type: GrantFiled: September 27, 2002Date of Patent: May 11, 2004Assignee: Herman Miller, Inc.Inventors: William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers, Jeffrey W. Bruner, Eric Cammenga
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Patent number: 6726286Abstract: A seating structure having a fabric with a weave pattern for supporting the body of a user. The fabric includes a plurality of strands of multifilament yarn and a plurality of monofilaments running generally perpendicular to the strands. At least some of the monofilaments are arranged in pairs. The monofilaments in each pair weaving alternatively above and below some adjacent strands and crossing over each other between other adjacent strands.Type: GrantFiled: October 2, 2002Date of Patent: April 27, 2004Assignee: Herman Miller, Inc.Inventors: William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy U. Sayers, Jeffrey W. Bruner, Eric Cammenga
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Patent number: 6722741Abstract: A seating structure includes a support structure, a seat supported by the support structure and a backrest pivotally connected to the support structure. The seat includes a front and rear. The backrest is positioned adjacent the rear of the seat. The backrest includes a frame having a pair of bow-shaped side members. Each of the side members has a lower section and an upper section. The upper sections extend from the lower sections so as to form a pair of first bowed sections at substantially a lumbar region of the backrest. A flexible membrane is attached to and extends between the side members. The flexible membrane has a second bowed section corresponding to the first bowed sections of the side members. A method of using the seating structure is also provided.Type: GrantFiled: September 27, 2002Date of Patent: April 20, 2004Assignee: Herman Miller, Inc.Inventors: William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers, Jeffrey W. Bruner, Eric Cammenga
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Patent number: 6702390Abstract: A seating structure includes a support assembly for supporting the body of a user. The support assembly includes a frame member defining an opening and having a channel formed around at least a portion of a perimeter of the opening and an expandable carrier member expandable between at least a first and second configuration. The carrier member is inserted into the channel when expanded to the second configuration. A membrane of elastic material covers the central opening. The membrane has an edge, at least a portion of which is attached to the carrier member. The membrane is stretched a desired amount as the carrier member is expanded between the first and second configurations. A method of assembling a seating structure is also provided.Type: GrantFiled: September 26, 2002Date of Patent: March 9, 2004Assignee: Herman Miller, Inc.Inventors: William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers, Jeffrey W. Bruner, Eric Cammenga
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Patent number: 6588842Abstract: A backrest for a chair comprising a frame, a membrane and a back support member. The membrane, at least a portion of which is transparent, is attached to the frame and has a first body-contacting surface and an opposite second surface. The back support member is attached to the frame and has a support surface. At least a portion of the support surface contacts the second surface of the membrane, and at least a portion of the back support member is visible through the membrane from the first body-contacting surface thereof. In another aspect, a backrest for a chair comprises a frame having a pair of side members, wherein each of the side members has a lower section and an upper section. The upper section extends rearwardly and outwardly from the lower section so as to form a bowed section therewith. A flexible membrane is attached to and extends between the side members, and has a bowed section corresponding to the bowed section of the side members.Type: GrantFiled: May 17, 2001Date of Patent: July 8, 2003Assignee: Herman Miller, Inc.Inventors: William E. Stumpf, Rodney C. Schoenfelder, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers, Jeffrey W. Bruner, Eric Cammenga
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Patent number: D510202Type: GrantFiled: March 31, 2003Date of Patent: October 4, 2005Assignee: Hanssem Co., Ltd.Inventors: Donald Chadwick, Francisco Romero
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Patent number: D479053Type: GrantFiled: December 2, 2002Date of Patent: September 2, 2003Assignee: Hanssem Co., Ltd.Inventors: Donald Chadwick, Julien Egger
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Patent number: D482215Type: GrantFiled: December 2, 2002Date of Patent: November 18, 2003Assignee: Hanssem Co., Ltd.Inventors: Donald Chadwick, Julien Egger
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Patent number: D495890Type: GrantFiled: January 8, 2003Date of Patent: September 14, 2004Assignee: Hanssem Co., Ltd.Inventors: Donald Chadwick, Francisco Romero, James Shen
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Patent number: D740041Type: GrantFiled: July 30, 2014Date of Patent: October 6, 2015Assignee: Humanscale CorporationInventors: Donald Chadwick, Jeffrey Koffman, Todd Brunner, Gregory Allison
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Patent number: D740578Type: GrantFiled: July 30, 2014Date of Patent: October 13, 2015Assignee: Humanscale CorporationInventors: Donald Chadwick, Jeffrey Koffman, Todd Brunner, Gregory Allison
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Patent number: D745287Type: GrantFiled: July 30, 2014Date of Patent: December 15, 2015Assignee: Humanscale CorporationInventors: Donald Chadwick, Jeffrey Koffman, Todd Brunner, Gregory Allison
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Patent number: D756139Type: GrantFiled: July 30, 2014Date of Patent: May 17, 2016Assignee: Humanscale CorporationInventors: Donald Chadwick, Jeffrey Koffman, Todd Bruner, Gregory Allison