Patents by Inventor Arnold B. Dammermann
Arnold B. Dammermann 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: 6302486Abstract: An armrest construction for chairs includes an armrest support having a lower end constructed for attachment to a chair, an upper end, and a mounting block attached to the upper end. A pivot block is pivoted to the mounting block at a main pivot, the pivot block having an upwardly-extending follower. First and second gears are each pivoted to the pivot block, the gears having intermeshing teeth at an inner end such that rotation of the first gear causes the second gear to simultaneously rotate in an opposite direction, the first and second gears further having outer ends. A support plate having pivot/slide members engages the outer ends of the first and second gears, and further has a guide operably engaging the follower to guide lateral movement of the support plate along a predetermined path.Type: GrantFiled: October 2, 2000Date of Patent: October 16, 2001Assignee: Steelcase Development CorporationInventors: Michel A. Lamart, Arnold B. Dammermann, Glenn A. Knoblock, Robert S. Grooters, Larry DeKraker, John Hanna J. Hasbany
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Patent number: 6176550Abstract: An armrest construction for chairs includes an armrest support having a lower end constructed for attachment to a chair, an upper end, and a mounting block attached to the upper end. A pivot block is pivoted to the mounting block at a main pivot, the pivot block having an upwardly-extending follower. First and second gears are each pivoted to the pivot block, the gears having intermeshing teeth at an inner end such that rotation of the first gear causes the second gear to simultaneously rotate in an opposite direction, the first and second gears further having outer ends. A support plate having pivot/slide members engages the outer ends of the first and second gears, and further has a guide operably engaging the follower to guide lateral movement of the support plate along a predetermined path.Type: GrantFiled: April 7, 2000Date of Patent: January 23, 2001Assignee: Steelcase Development Inc.Inventors: Michel A. Lamart, Arnold B. Dammermann, Glenn A. Knoblock, Robert S. Grooters, Larry DeKraker, John Hanna J. Hasbany
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Patent number: 6168237Abstract: An armrest construction for chairs includes an armrest support having a lower end constructed for attachment to a chair, an upper end, and a mounting block attached to the upper end. A pivot block is pivoted to the mounting block at a main pivot, the pivot block having an upwardly-extending follower. First and second gears are each pivoted to the pivot block, the gears having intermeshing teeth at an inner end such that rotation of the first gear causes the second gear to simultaneously rotate in an opposite direction, the first and second gears further having outer ends. A support plate having pivot/slide members engages the outer ends of the first and second gears, and further has a guide operably engaging the follower to guide lateral movement of the support plate along a predetermined path.Type: GrantFiled: July 16, 1999Date of Patent: January 2, 2001Assignee: Steelcase Development Inc.Inventors: Michel A. Lamart, Arnold B. Dammermann, Glenn A. Knoblock, Robert S. Grooters, Larry DeKraker, John Hanna J. Hasbany
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Patent number: 5975634Abstract: A chair is provided having a base assembly, a back assembly pivoted to the base assembly for movement between upright and reclined positions, and a seat slidably supported on the base assembly and pivoted to the back frame so that the seat moves forwardly and its rear moves forwardly and downwardly with the back frame upon recline. A flexible back is connected to the back frame at top and bottom locations and is provided with lumbar adjustment for improved lumbar force/support and shape. A seat is provided with seat depth adjustment and with active and passive thigh flex support. A novel energy mechanism is provided that includes a moment arm shift adjuster for adjusting the spring tension on the back frame. The moment arm shift adjuster is readily adjustable and includes an overtorque device to prevent damage to components of the energy mechanism.Type: GrantFiled: October 24, 1997Date of Patent: November 2, 1999Assignee: Steelcase Development Inc.Inventors: Glenn A. Knoblock, Arnold B. Dammermann, Larry DeKraker, Kevin A. Ekdahl, Kurt R. Heidmann, Gardner J. Klaasen, II, James A. Perkins, Gordon J. Peterson, Edward H. Punches, Charles P. Roossien, David S. Teppo, Michael J. Yancharas
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Patent number: 5971484Abstract: An armrest construction for chairs includes an armrest support having a lower end constructed for attachment to a chair, an upper end, and a mounting block attached to the upper end. A pivot block is pivoted to the mounting block at a main pivot, the pivot block having an upwardly-extending follower. First and second gears are each pivoted to the pivot block, the gears having intermeshing teeth at an inner end such that rotation of the first gear causes the second gear to simultaneously rotate in an opposite direction, the first and second gears further having outer ends. A support plate having pivot/slide members engages the outer ends of the first and second gears, and further has a guide operably engaging the follower to guide lateral movement of the support plate along a predetermined path.Type: GrantFiled: December 3, 1997Date of Patent: October 26, 1999Assignee: Steelcase Development Inc.Inventors: Michel A. Lamart, Arnold B. Dammermann, Glenn A. Knoblock, Robert S. Grooters, Larry DeKraker, John Hanna J. Hasbany
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Patent number: 5630650Abstract: A vertically adjustable back construction is provided for chairs and the like of the type having a one-piece sculptured appearance. The back construction includes a lower back member with an upholstered upright portion, and an upper back member slidably mounted on the lower back member for movement between various back heights. The upper back member includes an upholstered, downwardly opening shroud portion, which is disposed over and covers at least the uppermost end of the upright portion on the lower back member, and translates thereover to permit ready vertical adjustment of the upper back member by the user to accommodate different tasks and users, while preserving the one-piece sculptured appearance of the chair.Type: GrantFiled: March 30, 1994Date of Patent: May 20, 1997Assignee: Steelcase Inc.Inventors: Gordon J. Peterson, Arnold B. Dammermann, Charles P. Roossien, David L. Rundhaug, James M. Mancewicz
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Patent number: 5172905Abstract: A receive magazine for collecting and transporting sheets of exposed photographic media. The receive magazine includes an elongated, light-tight enclosure having front and back walls, top and bottom walls, and first and second end walls. Sheets of media are gravity fed into the magazine entrance through a collection door on the top wall of the enclosure. The collection door includes a media-receiving slot, a shutter and a spring for biasing the shutter to a normally closed, light-tight position over the slot. A lower downwardly sloping resilient member mounted to the front wall engages the sheets as they are inserted into the magazine and forces the sheets into a vertically stacked arrangement against the back wall of the enclosure, away from the entrance. A ramp surface on the back wall guides sheets being inserted over previously collected sheets. A compound curved surface on the back wall of the enclosure below the ramp surface arcs the sheets to minimize contact during insertion.Type: GrantFiled: June 19, 1991Date of Patent: December 22, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: James C. Vanous, Robert L. Rydeen, Thomas J. Lundgren, Bert A. Munthe, Arnold B. Dammermann
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Patent number: D438733Type: GrantFiled: April 9, 1999Date of Patent: March 13, 2001Assignee: Steelcase Development Inc.Inventors: David C. Jenkins, Arnold B. Dammermann, Kurt R. Heidmann, David S. Teppo
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Patent number: D439451Type: GrantFiled: April 9, 1999Date of Patent: March 27, 2001Assignee: Steelcase Development Inc.Inventors: George J. Simons, Jr., David C. Jenkins, Arnold B. Dammermann, Thomas B. Eich, Thomas Overthun, Kurt R. Heidmann, David S. Teppo
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Patent number: D442400Type: GrantFiled: October 26, 2000Date of Patent: May 22, 2001Assignee: Steelcase Development Inc.Inventors: George J. Simons, Jr., David C. Jenkins, Arnold B. Dammermann, Thomas B. Eich, Thomas Overthun, Kurt R. Heidmann, David S. Teppo
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Patent number: D442791Type: GrantFiled: October 26, 2000Date of Patent: May 29, 2001Assignee: Steelcase Development Inc.Inventors: George J. Simons, Jr., David C. Jenkins, Arnold B. Dammermann, Thomas B. Eich, Thomas Overthun, Kurt R. Heidmann, David S. Teppo
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Patent number: D383322Type: GrantFiled: February 17, 1995Date of Patent: September 9, 1997Assignee: Steelcase Inc.Inventors: Arnold B. Dammermann, Michael L. Deimen
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Patent number: D383323Type: GrantFiled: February 17, 1995Date of Patent: September 9, 1997Assignee: Steelcase Inc.Inventors: Arnold B. Dammermann, Michael L. Deimen
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Patent number: D390385Type: GrantFiled: September 30, 1996Date of Patent: February 10, 1998Assignee: Steelcase Inc.Inventors: Arnold B. Dammermann, Michael L. Deimen
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Patent number: D396975Type: GrantFiled: April 4, 1997Date of Patent: August 18, 1998Inventors: Arnold B. Dammermann, Michael L. Deimen
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Patent number: D404229Type: GrantFiled: September 30, 1996Date of Patent: January 19, 1999Assignee: Steelcase Inc.Inventors: Arnold B. Dammermann, Michael L. Deimen
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Patent number: D410342Type: GrantFiled: September 2, 1998Date of Patent: June 1, 1999Assignee: Steelcase Inc.Inventors: Arnold B. Dammermann, Michael L. Deimen
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Patent number: D414349Type: GrantFiled: October 24, 1997Date of Patent: September 28, 1999Assignee: Steelcase Inc.Inventors: David C. Jenkins, Arnold B. Dammermann, Markus P. Diebel, Gardner J. Klaasen, II, John P. Stoddard, David S. Teppo
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Patent number: D421540Type: GrantFiled: April 2, 1999Date of Patent: March 14, 2000Assignee: Steelcase Inc.Inventors: David C. Jenkins, Arnold B. Dammermann, Markus P. Diebel, Gardner J. Klaasen, II, John P. Stoddard, David S. Teppo