Patents by Inventor Glenn Gaarder
Glenn Gaarder 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: 7431284Abstract: A sheet transfer apparatus includes a first roller, a second roller and a power train. The first roller is configured to be rotatably driven at a first surface speed. The second roller is spaced from the first roller such that the first roller and the second roller are configured to simultaneously engage a media sheet. The second roller is configured to be driven at a second surface speed greater than the first surface speed. The power train delivers power to the first roller to rotatably drive the first roller. The power train includes a first gear coupled to the first roller, a second gear and a third gear. The third gear is movable between a first position in which the third gear is in power transmitting engagement with both the first gear and the second gear and a second position in which the third gear is out of power transmitting engagement with the second gear.Type: GrantFiled: February 10, 2004Date of Patent: October 7, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Glenn Gaarder, Mark Randolph Marrs
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Publication number: 20070053010Abstract: A scanner is illustrated and described.Type: ApplicationFiled: September 2, 2005Publication date: March 8, 2007Inventors: Glenn Gaarder, Kevin Bokelman, David Short, Alexandra Pearlman, Joan Bockman
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Publication number: 20060165453Abstract: Embodiments of device and methods for winding media are illustrated and described.Type: ApplicationFiled: January 27, 2005Publication date: July 27, 2006Inventors: Kevin Bokelman, Glenn Gaarder, William Rhoads
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Publication number: 20060132854Abstract: In one implementation, a method scans a media to provide a first image and a second image. The method further subtracts the first image from the second image.Type: ApplicationFiled: December 21, 2004Publication date: June 22, 2006Inventors: Kevin Bokelman, Glenn Gaarder, Otto Sievert
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Publication number: 20050271435Abstract: One embodiment of a mechanism may include a member having a first axis and a surface non-concentric with said first axis, a first gear rotatably mounted on said member at a second axis different from said first axis, and a device coupled to either of said member or said first gear to rotate said member when said first gear rotates about said second axis.Type: ApplicationFiled: June 2, 2004Publication date: December 8, 2005Inventors: Kevin Bokelman, Allan Donley, Glenn Gaarder
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Patent number: 6969058Abstract: A replaceable roller bogie for a single sheet feeder includes pre-feed and separation rollers mounted on a frame which also has a frame positioning lever thereon. Roller drive gears are mounted between spaced plates on the frame and include a pre-feed roller clutch gear with elastomeric teeth which is mounted in slots on the frame which limit motion travel of the clutch gear to prevent over engagement of gear teeth on the clutch gear with gear teeth on the pre-feed roller drive gear. The replaceable bogie is pivotally supported on the sheet feeder and held in place by a manually operable release and latch mechanism.Type: GrantFiled: August 1, 2003Date of Patent: November 29, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Glenn Gaarder, Mark Randolph Marrs
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Patent number: 6874776Abstract: A replaceable roller bogie for a single sheet feeder includes pre-feed and separation rollers mounted on a frame which also has a frame positioning lever thereon. Roller drive gears are mounted between spaced plates on the frame and include a pre-feed roller clutch gear with elastomeric teeth which is mounted in slots on the frame which limit motion travel of the clutch gear to prevent over engagement of gear teeth on the clutch gear with gear teeth on the pre-feed roller drive gear. The replaceable bogie is pivotally supported on the sheet feeder and held in place by a manually operable release and latch mechanism.Type: GrantFiled: August 1, 2003Date of Patent: April 5, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Glenn Gaarder, Mark Randolph Marrs
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Patent number: 6831759Abstract: An optical scanner system wherein the central region of the light source is selectively covered up by a mechanically actuated shutter during a transparency scanning mode. By occluding the central portion of the light source, problems with flare and degraded image quality are eliminated. The shutter is actuated to its two positions (normal reflective mode position, transparency mode position) by pins, protrusions, or the scanner walls in the scan module path. When the scan module is driven to the extremes of its travel the shutter is either driven open or closed. A bracket structure is provided to hold the transparent media and a covering light reflective tent, and can include the pin or pins that can protrude into the scanner module path and thus actuate the shutter only when the structure is mounted on to the scanner by the user. The bracket structure can include a lower member that rests directly on the platen glass to align filmstrips, slides, and other transparent media.Type: GrantFiled: March 16, 2000Date of Patent: December 14, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Stephen B. Witte, Glenn Gaarder
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Publication number: 20040155397Abstract: A sheet transfer apparatus includes a first roller, a second roller and a power train. The first roller is configured to be rotatably driven at a first surface speed. The second roller is spaced from the first roller such that the first roller and the second roller are configured to simultaneously engage a media sheet. The second roller is configured to be driven at a second surface speed greater than the first surface speed. The power train delivers power to the first roller to rotatably drive the first roller. The power train includes a first gear coupled to the first roller, a second gear and a third gear. The third gear is movable between a first position in which the third gear is in power transmitting engagement with both the first gear and the second gear and a second position in which the third gear is out of power transmitting engagement with the second gear.Type: ApplicationFiled: February 10, 2004Publication date: August 12, 2004Applicant: Hewlett-Packard Development Company, L.P.Inventors: Glenn Gaarder, Mark Randolph Marrs
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Patent number: 6764072Abstract: A roller assembly for a single sheet feeder includes a stack damper which is rotatably suspended on or near a pre-feed roller axis to prevent buckling of thin media sheets and to impart a slight bend to thick media sheets during sheet movement by the pre-feed roller. The stack damper has a surface which extends from a location proximate the pre-feed roller parallel to the surface of a stack of media from which individual sheets are to be removed.Type: GrantFiled: June 13, 2001Date of Patent: July 20, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventor: Glenn Gaarder
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Publication number: 20040021263Abstract: A replaceable roller bogie for a single sheet feeder includes pre-feed and separation rollers mounted on a frame which also has a frame positioning lever thereon. Roller drive gears are mounted between spaced plates on the frame and include a pre-feed roller clutch gear with elastomeric teeth which is mounted in slots on the frame which limit motion travel of the clutch gear to prevent over engagement of gear teeth on the clutch gear with gear teeth on the pre-feed roller drive gear. The replaceable bogie is pivotally supported on the sheet feeder and held in place by a manually operable release and latch mechanism.Type: ApplicationFiled: August 1, 2003Publication date: February 5, 2004Inventors: Glenn Gaarder, Mark Randolph Marrs
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Publication number: 20040021264Abstract: A replaceable roller bogie for a single sheet feeder includes pre-feed and separation rollers mounted on a frame which also has a frame positioning lever thereon. Roller drive gears are mounted between spaced plates on the frame and include a pre-feed roller clutch gear with elastomeric teeth which is mounted in slots on the frame which limit motion travel of the clutch gear to prevent over engagement of gear teeth on the clutch gear with gear teeth on the pre-feed roller drive gear. The replaceable bogie is pivotally supported on the sheet feeder and held in place by a manually operable release and latch mechanism.Type: ApplicationFiled: August 1, 2003Publication date: February 5, 2004Inventors: Glenn Gaarder, Mark Randolph Marrs
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Patent number: 6666446Abstract: A replaceable roller bogie for a single sheet feeder includes pre-feed and separation rollers mounted on a frame which also has a frame positioning lever thereon. Roller drive gears are mounted between spaced plates on the frame and include a pre-feed roller clutch gear with elastomeric teeth which is mounted in slots on the frame which limit motion travel of the clutch gear to prevent over engagement of gear teeth on the clutch gear with gear teeth on the pre-feed roller drive gear. The replaceable bogie is pivotally supported on the sheet feeder and held in place by a manually operable release and latch mechanism.Type: GrantFiled: June 13, 2001Date of Patent: December 23, 2003Assignee: Hewlett-Packard Development Company, L.P.Inventors: Glenn Gaarder, Mark Randolph Marrs
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Patent number: 6651973Abstract: A modular single sheet feeder for feeding media sheets to a processing apparatus includes a chassis frame and a modular roller support and drive assembly pivotally supported on the frame for easy assembly. The roller support and drive assembly biases a roller frame which may be a replaceable bogie toward the media sheets to be fed and selectively positions the roller frame in a stack feeding position. A stack stop is provided for limiting the motion of the stack during manual loading and is automatically moved out of the media path as sheets are fed. Over engagement protection of the input gears and of the roller drive gears is also provided.Type: GrantFiled: June 13, 2001Date of Patent: November 25, 2003Assignee: Hewlett-Packard Development Company, L.P.Inventors: Glenn Gaarder, Reza Movaghar
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Patent number: 6581924Abstract: Over engagement protection of roller drive gears on a single sheet feeder roller assembly, which may comprise a replaceable roller bogie, is provided by a clutch gear which drives a pre-feed roller, the clutch gear being mounted in a roller support frame which includes spaced elongate, preferably arcuate, slots which limit gear travel toward the pre-feed roller when the roller is driven in a forward direction and which disengages the gears when the input power is reversed. The clutch gear is provided with elastomeric teeth for noise reduction and the roller assembly also includes a separation roller which is over driven relative to the surface speed of the pre-feed roller.Type: GrantFiled: June 13, 2001Date of Patent: June 24, 2003Assignee: Hewlett-Packard Development Co., L.P.Inventors: Glenn Gaarder, Mark Randolph Marrs
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Publication number: 20020190458Abstract: Over engagement protection of roller drive gears on a single sheet feeder roller assembly, which may comprise a replaceable roller bogie, is provided by a clutch gear which drives a pre-feed roller, the clutch gear being mounted in a roller support frame which includes spaced elongate, preferably arcuate, slots which limit gear travel toward the pre-feed roller when the roller is driven in a forward direction and which disengages the gears when the input power is reversed. The clutch gear is provided with elastomeric teeth for noise reduction and the roller assembly also includes a separation roller which is over driven relative to the surface speed of the pre-feed roller.Type: ApplicationFiled: June 13, 2001Publication date: December 19, 2002Inventors: Glenn Gaarder, Mark Randolph Marrs
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Publication number: 20020190460Abstract: A modular single sheet feeder for feeding media sheets to a processing apparatus includes a chassis frame and a modular roller support and drive assembly pivotally supported on the frame for easy assembly. The roller support and drive assembly biases a roller frame which may be a replaceable bogie toward the media sheets to be fed and selectively positions the roller frame in a stack feeding position. A stack stop is provided for limiting the motion of the stack during manual loading and is automatically moved out of the media path as sheets are fed.Type: ApplicationFiled: June 13, 2001Publication date: December 19, 2002Inventors: Glenn Gaarder, Reza Movaghar
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Publication number: 20020190459Abstract: A replaceable roller bogie for a single sheet feeder includes pre-feed and separation rollers mounted on a frame which also has a frame positioning lever thereon. Roller drive gears are mounted between spaced plates on the frame and include a pre-feed roller clutch gear with elastomeric teeth which is mounted in slots on the frame which limit motion travel of the clutch gear to prevent over engagement of gear teeth on the clutch gear with gear teeth on the pre-feed roller drive gear. The replaceable bogie is pivotally supported on the sheet feeder and held in place by a manually operable release and latch mechanism.Type: ApplicationFiled: June 13, 2001Publication date: December 19, 2002Inventors: Glenn Gaarder, Mark Randolph Marrs
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Publication number: 20020190457Abstract: A roller assembly for a single sheet feeder includes a stack damper which is rotatably suspended on or near a pre-feed roller axis to prevent buckling of thin media sheets and to impart a slight bend to thick media sheets during sheet movement by the pre-feed roller. The stack damper has a surface which extends from a location proximate the pre-feed roller parallel to the surface of a stack of media from which individual sheets are to be removed.Type: ApplicationFiled: June 13, 2001Publication date: December 19, 2002Inventor: Glenn Gaarder
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Patent number: 6493060Abstract: The footprint of a document scanning unit such as a copier, facsimile machine or document scanner or combinations thereof is reduced by causing overlap of the leading and trailing edges of long document sheets to be scanned in the document delivery roller system downstream of the scanning station. Differential slippage of the overlapping ends between a drive roller and a pinch roller is provided in a first embodiment. A second embodiment uses a moveable pinch roller in the document delivery system to selectively open and close a gap to permit slippage of the leading and trailing edges of the document. A third embodiment uses three document delivery rollers defining two spaced nips in which the leading and trailing edges of a long document are simultaneously present and a crenellated roller surface to guide the leading edge of the document to the desired nip in the delivery system.Type: GrantFiled: February 21, 2001Date of Patent: December 10, 2002Assignee: Hewlett-Packard CompanyInventors: Glenn Gaarder, William Wistar Rhoads, Kevin Bokelman