Patents by Inventor Randy J. Sayers
Randy J. Sayers 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: 8066501Abstract: An apparatus and method for molding a component onto a stretched blank. The apparatus includes a stretching assembly mounted adjacent to a first mold part. The stretching assembly includes a plurality of clamp assemblies that grasp the peripheral edge of the blank and a plurality of slide assemblies that move the clamp assemblies away from one another to apply a stretch to the fabric. The apparatus further includes a press for closing a second mold part onto the first mold part while the fabric is held in a stretched condition by the stretching assembly. In one embodiment, the stretching assembly may include a float plate that is movable with respect to the first mold part between a stretch position and a mold position. The apparatus may include a robot with tooling for moving the fabric onto the stretching assembly. The tooling may include a plurality of shot pins that push the fabric off of the tooling onto corresponding fabric pins in the stretching machine.Type: GrantFiled: January 21, 2010Date of Patent: November 29, 2011Assignee: Illinois Tool Works Inc.Inventors: Randy J. Sayers, Pierre Tremblay, Kelly E. Washburn, Kenneth A. Longstreet
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Publication number: 20100119635Abstract: An apparatus and method for molding a component onto a stretched blank. The apparatus includes a stretching assembly mounted adjacent to a first mold part. The stretching assembly includes a plurality of clamp assemblies that grasp the peripheral edge of the blank and a plurality of slide assemblies that move the clamp assemblies away from one another to apply a stretch to the fabric. The apparatus further includes a press for closing a second mold part onto the first mold part while the fabric is held in a stretched condition by the stretching assembly. In one embodiment, the stretching assembly may include a float plate that is movable with respect to the first mold part between a stretch position and a mold position. The apparatus may include a robot with tooling for moving the fabric onto the stretching assembly. The tooling may include a plurality of shot pins that push the fabric off of the tooling onto corresponding fabric pins in the stretching machine.Type: ApplicationFiled: January 21, 2010Publication date: May 13, 2010Applicant: ILLINOIS TOOL WORKS INC.Inventors: Randy J. Sayers, Pierre Tremblay, Kelly E. Washburn, Kenneth A. Longstreet
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Patent number: 7677873Abstract: An apparatus and method for molding a component onto a stretched blank. The apparatus includes a stretching assembly mounted adjacent to a first mold part. The stretching assembly includes a plurality of clamp assemblies that grasp the peripheral edge of the blank and a plurality of slide assemblies that move the clamp assemblies away from one another to apply a stretch to the fabric. The apparatus further includes a press for closing a second mold part onto the first mold part while the fabric is held in a stretched condition by the stretching assembly. In one embodiment, the stretching assembly may include a float plate that is movable with respect to the first mold part between a stretch position and a mold position. The apparatus may include a robot with tooling for moving the fabric onto the stretching assembly. The tooling may include a plurality of shot pins that push the fabric off of the tooling onto corresponding fabric pins in the stretching machine.Type: GrantFiled: October 12, 2004Date of Patent: March 16, 2010Assignee: Illinois Tool Works Inc.Inventors: Randy J. Sayers, Pierre Tremblay, Kelly E. Washburn, Kenneth A. Longstreet
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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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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: 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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Publication number: 20040121119Abstract: A fabric having a plastic member integrally connected thereto. A frame member component of plastic is provided with a metal wire extending therethrough. The frame member component is placed in contact with the web, and the wire is heated to soften the plastic of the frame member component, bonding it to the web.Type: ApplicationFiled: September 8, 2003Publication date: June 24, 2004Inventors: Kenneth R. Levey, Kenneth A. Longstreet, Randy J. Sayers, Pierre Tremblay
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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: 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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Publication number: 20040028879Abstract: A fabric having a plastic body integrally connected thereto by extrusion of the body onto the fabric, and a process for extruding the plastic onto the fabric.Type: ApplicationFiled: May 29, 2003Publication date: February 12, 2004Inventors: Randy J. Sayers, Kenneth A. Longstreet
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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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Publication number: 20030034681Abstract: 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: ApplicationFiled: October 2, 2002Publication date: February 20, 2003Applicant: 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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Publication number: 20030034682Abstract: 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: ApplicationFiled: September 26, 2002Publication date: February 20, 2003Applicant: 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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Publication number: 20030034680Abstract: 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: ApplicationFiled: September 27, 2002Publication date: February 20, 2003Applicant: 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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Publication number: 20030020310Abstract: 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: ApplicationFiled: September 27, 2002Publication date: January 30, 2003Applicant: 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: 6386634Abstract: A tiltable chair including a base member (44), a seat (32), a back (34), and a linkage assembly (40) adapted to allow the seat and back to tilt downwardly and rearwardly and to allow pivotal movement of the seat about a pivot axis (52) in substantial alignment with the hip joints of a user. Other aspects of the invention are to provide a vertically adjustable column (42) for supporting the seat of the chair, a support assembly including a frame member (33) having a central opening therethrough and a receptacle formed around the perimeter thereof, a carrier member adapted to fit inside the receptacle, and a membrane of elastic material (210) covering the central opening, and a pair of armrests (36) adapted to be mounted to the chair to allow pivotal movement thereof.Type: GrantFiled: November 17, 1995Date of Patent: May 14, 2002Assignee: 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: 20010030453Abstract: 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: ApplicationFiled: May 17, 2001Publication date: October 18, 2001Inventors: 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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Publication number: 20010028188Abstract: A seat for a chair comprises a frame comprising spaced apart side members with inboard edges defining an opening therebetween. Each of the side members has a support wall extending upwardly from the inboard edges. A membrane extends between and is attached to the side members and covers at least a portion of the opening. At least a portion of the support walls extend upwardly from and are positioned above at least a portion of an upper body-supporting surface of the membrane. In another aspect, the seat has a frame and a flexible membrane secured to the frame, with the membrane and frame defining an upper body-supporting surface comprising substantially concave side portions and a substantially convex front portion. In yet another aspect, the seat comprises a frame comprising a front portion and a flexible membrane connected to the front portion. A cushion is disposed between the front portion of the frame and the membrane.Type: ApplicationFiled: May 17, 2001Publication date: October 11, 2001Inventors: 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: 6125521Abstract: A method of making an office chair by stretching a membrane in a stretching machine and retaining the stretched membrane on a loom. The loom, with the retained stretched membrane, is removed from the stretching machine and positioned between molds of a molding machine, wherein the molding machine is used to form a carrier member to hold a portion of the stretched member by injecting a material into a cavity formed between the molds to form a part of the chair.Type: GrantFiled: June 7, 1995Date of Patent: October 3, 2000Assignee: 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