Patents by Inventor Douglas McFarland
Douglas McFarland 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: 9988224Abstract: A removable media tray assembly for an image forming device according to one embodiment includes a media tray having a bottom surface and a front wall extending upward from the bottom surface. A bottom surface defines a media storage location for storing a stack of media sheets. The assembly includes a housing having an opening therein to receive the media tray. A magnet and a plate provide a latching force FL greater than a pick motor stall force keeping the media tray in a closed position during media picking. A handle assembly including a finger bar and a pivoting link is mounted to the front wall. With the media tray being held closed by the latching force, a user-supplied actuation force FA that is less than 22.2 N applied to the finger bar, pivots the link which acts as a force multiplier providing a release force exceeding the latching force.Type: GrantFiled: May 30, 2017Date of Patent: June 5, 2018Assignee: Lexmark International, Inc.Inventors: Michael William Lawrence, Dustin Daniel Fichter, Neal Douglas McFarland, Stacey Vaughan Mitchell, Angel Macuha Alagos, Douglas Andagan Baena, Jr., Pat Marlon Cartagena Limosnero
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Publication number: 20170267470Abstract: A removable media tray assembly for an image forming device according to one embodiment includes a media tray having a bottom surface and a front wall extending upward from the bottom surface. A bottom surface defines a media storage location for storing a stack of media sheets. The assembly includes a housing having an opening therein to receive the media tray. A magnet and a plate provide a latching force FL greater than a pick motor stall force keeping the media tray in a closed position during media picking. A handle assembly including a finger bar and a pivoting link is mounted to the front wall. With the media tray being held closed by the latching force, a user-supplied actuation force FA that is less than 22.2 N applied to the finger bar, pivots the link which acts as a force multiplier providing a release force exceeding the latching force.Type: ApplicationFiled: May 30, 2017Publication date: September 21, 2017Inventors: MICHAEL WILLIAM LAWRENCE, DUSTIN DANIEL FICHTER, NEAL DOUGLAS MCFARLAND, STACEY VAUGHAN MITCHELL, ANGEL MACUHA ALAGOS, DOUGLAS ANDAGAN BAENA, JR., PAT MARLON CARTAGENA LIMOSNERO
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Patent number: 9764912Abstract: A removable media tray with an adjustable rear tray extension operable by a rear media restraint. The tray extension is slidably attached to a front section of the tray via a cam having a locking arm engaged in a J-slot. When in the curved portion of the J-slot the front section and tray extension are locked together. A rear media restraint slidably latching to a track in the bottom of the tray has a locking lobe that engages with a locking notch on the cam. As the media restraint is slid toward the rear, the locking lobe initially rotates the cam moving the locking arm to the straight section of the J-slot, then the locking lobe engages with the locking notch, locking the media restraint to the tray extension. Thereafter, the media restraint and tray extension move together until the end of the J-slot is reached by the locking arm.Type: GrantFiled: May 4, 2016Date of Patent: September 19, 2017Assignee: Lexmark International, Inc.Inventors: Neal Douglas McFarland, Angel Macuha Alagos, Joe Carlo Enoc Bacon, Dustin Daniel Fichter, Pat Marlon Limosnero, Katherine Mary Mulloy, Edward Joseph Walden
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Publication number: 20170247210Abstract: A removable media tray assembly for an image forming device according to one embodiment includes a media tray having a bottom surface and a front wall extending upward from the bottom surface. A bottom surface defines a media storage location for storing a stack of media sheets. The assembly includes a housing having an opening therein to receive the media tray. A magnet and a plate provide a latching force FL greater than a pick motor stall force keeping the media tray in a closed position during media picking. A handle assembly including a finger bar and a pivoting link is mounted to the front wall. With the media tray being held closed by the latching force, a user-supplied actuation force FA that is less than 22.2 N applied to the finger bar, pivots the link which acts as a force multiplier providing a release force exceeding the latching force.Type: ApplicationFiled: February 25, 2016Publication date: August 31, 2017Inventors: MICHAEL WILLIAM LAWRENCE, DUSTIN DANIEL FICHTER, NEAL DOUGLAS MCFARLAND, STACEY VAUGHAN MITCHELL, ANGEL MACUHA ALAGOS, DOUGLAS ANDAGAN BAENA, JR., PAT MARLON CARTAGENA LIMOSNERO
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Patent number: 9745154Abstract: A removable media tray assembly for an image forming device according to one embodiment includes a media tray having a bottom surface and a front wall extending upward from the bottom surface. A bottom surface defines a media storage location for storing a stack of media sheets. The assembly includes a housing having an opening therein to receive the media tray. A magnet and a plate provide a latching force FL greater than a pick motor stall force keeping the media tray in a closed position during media picking. A handle assembly including a finger bar and a pivoting link is mounted to the front wall. With the media tray being held closed by the latching force, a user-supplied actuation force FA that is less than 22.2 N applied to the finger bar, pivots the link which acts as a force multiplier providing a release force exceeding the latching force.Type: GrantFiled: February 25, 2016Date of Patent: August 29, 2017Assignee: Lexmark International Inc.Inventors: Michael William Lawrence, Dustin Daniel Fichter, Neal Douglas McFarland, Stacey Vaughan Mitchell, Angel Macuha Alagos, Douglas Andagan Baena, Jr., Pat Marlon Cartagena Limosnero
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Patent number: 9663312Abstract: A media restraint for a removable media tray and slidably operable without the use of a pinching force. The media restraint slidably positionable on a track in a removable media tray and is operable without pinching. A latching plunger in the media restraint is biased into engagement with a track provided in the removable media tray and is moved by a rack and pinion mechanism to a released position allowing the media restraint to be moved along the track. The media restraint is operable by a finger of the user applying a downward force to the media restraint to release the plunger from the track and allowing the media restraint to be moved along the track. Upon removal of the downward force, a biasing member reengages the plunger with the track.Type: GrantFiled: March 4, 2016Date of Patent: May 30, 2017Assignee: Lexmark International, Inc.Inventors: Neal Douglas McFarland, Dustin Daniel Fichter, Stacey Vaughan Mitchell
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Patent number: 9604802Abstract: A media restraint for a removable media tray and slidably operable without the use of a pinching force. The media restraint slidably positionable on a track in a removable media tray and is operable without pinching. A pair of latching cams are used to engage the media restraint to the track and have serrated portions pivotally mounted to a bottom of the media restraint. The media restraint is operable by a finger of the user applying a downward force to the media restraint allowing a rack and pinion to horizontally translate a rack portion of the pair of latching cams away from the track and pivot the serrated portions away from the track and allowing the media restraint to be moved along the track. Upon removal of the downward force, a biasing member translates the latching cams back to reengage with the track.Type: GrantFiled: March 4, 2016Date of Patent: March 28, 2017Assignee: LEXMARK INTERNATIONAL, INC.Inventors: Neal Douglas McFarland, Dustin Daniel Fichter, Stacey Vaughan Mitchell, Edward Joseph Walden
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Patent number: 9580258Abstract: A media restraint for a removable media tray and slidably operable without the use of a pinching force. The media restraint slidably positionable on a track in a removable media tray and is operable without pinching. A pair of pivoting latching cams are used to engage the media restraint to the track and have serrated portions pivotally mounted to a bottom of the media restraint. The media restraint is operable by a finger of the user applying a downward force to an actuator that spreads two cam plates apart which in turn pivot the pair of latching cams to release the media restraint from the track and allowing it to be moved along the track. Upon removal of the downward force, a biasing member lifts the actuator to bring the two cam plates back to their first positions thereby pivoting the pair of latching cams back to reengage with the track.Type: GrantFiled: March 4, 2016Date of Patent: February 28, 2017Assignee: Lexmark International, Inc.Inventors: Neal Douglas McFarland, Dustin Daniel Fichter, Stacey Vaughan Mitchell, Hannibal Bartolata Aljecera, Winston Bercades Gomez, Pat Marlon Cartagena Limosnero, Lowell Libo-On Tacadao
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Patent number: 9580259Abstract: A removable media tray for an imaging device having a rear media restraint coupled to a media length sensing system. A rear media restraint, slideably latchable to a track in the tray, has a rack that engages with a gear train that drives an encoder gear. As the rear media restraint is adjusted for different media lengths, the rack and gear train rotate the encoder gear. The encoder gear has a plurality of encoder tracks each track having a unique binary pattern. A sensor array of a plurality of sensors corresponding to the plurality of encoder tracks has a plurality of outputs that combine to form a digital signal fed to a controller in the imaging device allowing the controller to determine a media length based in the position of the rear media restraint.Type: GrantFiled: April 22, 2016Date of Patent: February 28, 2017Assignee: Lexmark International, Inc.Inventors: Neal Douglas McFarland, Dustin Daniel Fichter, Pat Marlon Cartagena Limosnero
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Patent number: 9533842Abstract: An imaging device having a sheet restraint sensing system is disclosed. The system includes a frame having an opening, a linear sensor strip located on the frame having a length, and a media tray having a sheet restraint that presses against the linear sensor strip when the media tray is located in the opening. The sheet restraint is constrained by the media tray to move relative to the media tray no more than a maximum adjustment displacement. The maximum adjustment displacement is less than the length of the linear sensor strip. Other systems are disclosed.Type: GrantFiled: May 31, 2016Date of Patent: January 3, 2017Assignee: Lexmark International, Inc.Inventors: Genri Solano Belarmino, Dustin Daniel Fichter, Neal Douglas McFarland, Stacey Vaughan Mitchell
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Publication number: 20070187124Abstract: An apparatus for use in combination with a tractor having a hydraulically adjustable front implement hitch and a front power takeoff is described for use in evacuating a body of water. The apparatus includes a mounting frame attachable to said front implement hitch; a pump having a water inlet, a water outlet and a rotatable drive shaft with a drive pulley carried on said mounting frame; drive means connecting said pump drive pulley to the front power takeoff; a suction hose having a proximal end attached to the water inlet of said pump and a distal end; and a discharge hose attached to the water outlet of said pump.Type: ApplicationFiled: January 17, 2007Publication date: August 16, 2007Inventors: Douglas McFarland, Christopher Pappalardo
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Patent number: 5784867Abstract: The present invention provides variable force traction enhance systems for vehicles. The systems include one or more hydraulic cylinders connected to an implement and fluidly connected to one or more hydrostatic transmissions. The hydraulic cylinders actuate the implement in response to changes in the hydraulic fluid pressures in the hydrostatic transmissions. The actuated implement automatically shifts weight to vehicle drive wheels to improve traction and automatically prevents a rear end of the vehicle from bucking.Type: GrantFiled: October 3, 1995Date of Patent: July 28, 1998Assignees: Shivvers Incorporated, Douglas McFarlandInventors: Douglas McFarland, Donald H. Parkes
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Patent number: 5392871Abstract: An amphibious vehicle having a hull and pair of multiple-flighted outriggers which coact to stabilize and propel the vehicle over land and water. The speed and direction of the vehicle is controlled by a joystick allowing an operator to move the craft over land and water with a single hand. The multiple flighting and positioning of the outriggers adds efficiency and stability to the vehicle while the joystick control adds ease of operation.Type: GrantFiled: August 18, 1993Date of Patent: February 28, 1995Inventor: Douglas McFarland
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Patent number: 5279376Abstract: This invention provides a force neutralizing mechanism 500 coupled to a single lever control 10 and a transmission controlled by the lever 10 for overcoming the transmission linkage forces F.sub.2 associated with controls of a pair of mechanical transmissions 532 so that the mechanical transmissions 532 may be comfortably controlled by the single lever control 10.Type: GrantFiled: April 27, 1992Date of Patent: January 18, 1994Assignee: Shivvers, IncorporatedInventors: Xinzhan Yang, Douglas McFarland, Steven D. Shivvers, Donald H. Parkes
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Patent number: 4084707Abstract: A round bale trailer includes a conveyor running the length thereof with a hay bale unrolling machine at the rear end. The unrolling machine includes a pointed spindle pivotal between a rearwardly extending loading and unrolling position and a forwardly extending engaging and disengaging position. Operation of the conveyor away from the machine disengages the bale from the spindle while operation in the opposite direction impales the bale on the spindle. A collar is mounted on the spindle and includes radially spaced apart hay-engaging teeth for rotating the bale when driven by a hydraulic motor.Type: GrantFiled: July 26, 1976Date of Patent: April 18, 1978Inventor: Douglas McFarland