Patents by Inventor David D. Sayers
David D. 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: 11927164Abstract: A throttle body assembly for a combustion engine includes a throttle body having a pressure chamber including a supply of liquid fuel, and a throttle bore with an inlet through which air is received. A throttle valve is carried by the throttle body with a valve head movable relative to the throttle bore. A metering valve is coupled to the throttle body, and has a valve element that is movable between open and closed positions. A boost venturi is located in the throttle bore and has an inner passage that is open at both ends to the throttle bore. The boost venturi has an opening through which fuel flows into the inner passage when the valve element is in the open position, wherein fuel flows from the pressure chamber to the metering valve under the force of gravity or under a pressure of less than 6 psi.Type: GrantFiled: November 17, 2022Date of Patent: March 12, 2024Assignee: Walbro LLCInventors: Gary J. Burns, Andreas D. M. Dixon, Eric G. Zbytowski, Albert L Sayers, Justin T. Dolane, David L Speirs, William E. Galka, Duried F. Rabban, Bradley J. Roche
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Patent number: 8813943Abstract: A positive displacement sorter includes a plurality of interconnected parallel slats defining an endless web that travels in a longitudinal direction. The web has upper and lower runs and transition sections between the upper and lower runs. An upper surface of the upper run of the web defining an article-conveying surface. A plurality of pusher shoes travels along at least one of the slats in order to laterally divert articles on the conveying surface. Each of the shoes has a diverting member extending below the conveying surface. A plurality of diverting rails below the conveying surface is capable of engaging the diverting member to cause the associated shoe to travel laterally to divert an article. A plurality of diverters selectively diverts at least one of the diverting members from a non-diverting path extending longitudinally along the sorter to one of the diverting rails in a diverting state. A propulsion system propels the web.Type: GrantFiled: May 10, 2011Date of Patent: August 26, 2014Assignee: Dematic Corp.Inventors: Mohan A. Ramankutty, Kenneth J. Kooistra, Floyd W. Butler, Dennis J. Schuitema, Paul Kreys, Thomas H. Triesenberg, Ronald C. Ehlert, David D. Sayers
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Publication number: 20120048677Abstract: A positive displacement sorter includes a plurality of interconnected parallel slats defining an endless web that travels in a longitudinal direction. The web has upper and lower runs and transition sections between the upper and lower runs. An upper surface of the upper run of the web defining an article-conveying surface. A plurality of pusher shoes travels along at least one of the slats in order to laterally divert articles on the conveying surface. Each of the shoes has a diverting member extending below the conveying surface. A plurality of diverting rails below the conveying surface is capable of engaging the diverting member to cause the associated shoe to travel laterally to divert an article. A plurality of diverters selectively diverts at least one of the diverting members from a non-diverting path extending longitudinally along the sorter to one of the diverting rails in a diverting state. A propulsion system propels the web.Type: ApplicationFiled: May 10, 2011Publication date: March 1, 2012Applicant: Dematic Corp.Inventors: Mohan A. Ramankutty, Kenneth J. Kooistra, Floyd W. Butler, Dennis J. Schuitema, Paul Kreys, Thomas H. Triesenberg, Ronald C. Ehlert, David D. Sayers
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Patent number: 5979988Abstract: A chair construction and method for building a chair having selected features are provided. The construction includes a plurality of interchangeable different components including different base assemblies, back assemblies, seats, arms, and chair controls that can be selected to provide different features on a "customized" chair. The different chair controls are constructed from a selected one of a plurality of interchangeable energy modules and a selected one of a plurality of interchangeable seat support modules. All components include standardized connections for engaging the related components, and further include various mechanisms and designs so that by selecting particular components, a chair having various features and appearances can be provided. For example, the plurality of interchangeable seat support modules includes a non-adjustable seat support module, a seat-angle-adjustable seat support module, and a seat-depth-adjustable seat support module.Type: GrantFiled: December 31, 1998Date of Patent: November 9, 1999Assignee: Steelcase Development Inc.Inventors: Kurt R. Heidmann, Brian L. Christensen, Michael W. Haan, Glenn A. Knoblock, Eric T. McClure, Noe Palacios, Brian H. Root, David D. Sayers, Robert M. Scheper, Patrick P. Schwoerer, James P. Steffens, Greg A. VanStee
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Patent number: 5873634Abstract: A chair construction and method for building a chair having selected features are provided. The construction includes a plurality of interchangeable different components including different base assemblies, back assemblies, seats, arms, and chair controls that can be selected to provide different features on a "customized" chair. The different chair controls are constructed from a selected one of a plurality of interchangeable energy modules and a selected one of a plurality of interchangeable seat support modules. All components include standardized connections for engaging the related components, and further include various mechanisms and designs so that by selecting particular components, a chair having various features and appearances can be provided. For example, the plurality of interchangeable seat support modules include a non-adjustable seat support module, a seat-angle-adjustable seat support module, and a seat-depth-adjustable seat support module.Type: GrantFiled: January 8, 1998Date of Patent: February 23, 1999Assignee: Steelcase Inc.Inventors: Kurt R. Heidmann, Brian L. Christensen, Micahel W. Haan, Glenn A. Knoblock, Eric T. McClure, Noe Palacios, Brian H. Root, David D. Sayers, Robert M. Scheper, Patrick P. Schwoerer, James P. Steffens, Greg A. VanStee
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Patent number: 5782536Abstract: A chair construction and method for building a chair having selected features are provided. The construction includes a plurality of interchangeable different components including different base assemblies, back assemblies, seats, arms, and chair controls that can be selected to provide different features on a "customized" chair. The different chair controls are constructed from a selected one of a plurality of interchangeable energy modules and a selected one of a plurality of interchangeable seat support modules. All components include standardized connections for engaging the related components, and further include various mechanisms and designs so that by selecting particular components, a chair having various features and appearances can be provided. For example, the plurality of interchangeable seat support modules include a non-adjustable seat support module, a seat-angle-adjustable seat support module, and a seat-depth-adjustable seat support module.Type: GrantFiled: February 17, 1995Date of Patent: July 21, 1998Assignee: Steelcase Inc.Inventors: Kurt R. Heidmann, Brian L. Christensen, Michael W. Haan, Glenn A. Knoblock, Eric T. McClure, Noe Palacios, Brian H. Root, David D. Sayers, Robert M. Scheper, Patrick P. Schwoerer, James P. Steffens, Greg A. VanStee
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Patent number: 5630647Abstract: A chair construction and method for building a chair having selected features are provided. The construction includes a plurality of interchangeable different components including different base assemblies, back assemblies, seats, arms, and chair controls that can be selected to provide different features on a "customized" chair. The different chair controls are constructed from a selected one of a plurality of interchangeable energy modules and a selected one of a plurality of interchangeable seat support modules. All components include standardized connections for engaging the related components, and further include various mechanisms and designs so that by selecting particular components, a chair having various features and appearances can be provided. For example, the plurality of interchangeable seat support modules include a non-adjustable seat support module, a seat-angle-adjustable seat support module, and a seat-depth-adjustable seat support module.Type: GrantFiled: May 26, 1995Date of Patent: May 20, 1997Assignee: Steelcase Inc.Inventors: Kurt R. Heidmann, Brian L. Christensen, Michael W. Haan, Glenn A. Knoblock, Eric T. McClure, Noe Palacios, Brian H. Root, David D. Sayers, Robert M. Scheper, Patrick P. Schwoerer, James P. Steffens, Greg A. VanStee
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Patent number: 5439267Abstract: A chair includes a tubular arm support, an armrest, a lateral adjustment mechanism and a vertical height adjustment mechanism. The lateral adjustment mechanism includes a plurality of nested slides. One slide is connected to the vertical height adjustment mechanism. An uppermost slide supports the arm rest. The slides are adjustable laterally with respect to each other to position the armrest with respect to the chair. The vertical height adjustment mechanism includes a tubular liner insertable into the arm support. The liner defines a bore and a plurality of vertically spaced notches or grooves. A latch tube telescopes within the bore of the liner. An upper end of the latch tube is connected to the lateral adjustment mechanism. The latch is pivotally positioned within the latch tube. The latch includes a latch end movable into and out of engagement with the notches. An actuator engages the latch to move it between locked and unlocked positions.Type: GrantFiled: May 28, 1993Date of Patent: August 8, 1995Assignee: Steelcase Inc.Inventors: Gordy Peterson, David D. Sayers, Charles P. Roossien, David L. Rundhaug, Kevin J. DeWeerd, Michael L. Deimen