Patents by Inventor David Marks

David Marks 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).

  • Publication number: 20200386223
    Abstract: A pump fluid end comprising: a reciprocating element disposed within a reciprocating element bore and having an outer surface; a reciprocating element packing positioned within the reciprocating element bore; and optionally a sleeve positioned within the reciprocating element bore and having an inner surface proximate the outer surface of the reciprocating element, wherein at least a portion of the outer surface of the reciprocating element and/or the inner surface of the sleeve is coated with a multi-layer surface coating comprising a plurality of layers including: a first layer in contact with the at least a portion of the outer surface of the reciprocating element and/or the inner surface of the sleeve; and a second layer disposed over at least a portion of the first layer; and wherein at least one of the plurality of layers has a different visual appearance and/or material composition than another of the plurality of layers.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 10, 2020
    Inventors: Justin Lee HURST, David Mark STRIBLING, Ryan Heath SPOERING
  • Patent number: 10859148
    Abstract: A modular porting manifold for a hydrostatic transmission that serves as an end cover for the hydraulic motor, and which may be modularly interfaced with multiple different pump configurations having the same or similar pump interface across the different pump configurations. A pump interfacing section of the porting manifold may have a mating surface that interfaces with a corresponding mating surface of an outwardly addressable manifold of the pump. The pump interfacing section of the porting manifold may have at least two ports for communication of hydraulic fluid with the pump, in which the at least two ports are laterally spaced apart in the same horizontal plane to align with at least two corresponding ports on the pump manifold that are also in the same horizontal plane, which may provide less complex and easier to manufacture flow passages for the porting manifold and/or pump end block.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: December 8, 2020
    Assignee: Parker-Hannifin Corporation
    Inventors: Jason Scot Richardson, Thomas Kevin Castle, David Mark Heathcoat, Jr.
  • Patent number: 10857626
    Abstract: A pump fluid end includes a body that defines a plunger bore and a working fluid bore that intersects the plunger bore to form a cross bore. A packing bore is defined in the plunger bore and includes a packing sleeve bore, a taper relief bore, and a transition bore. The packing sleeve bore transitions to the taper relief bore at a radial shoulder and the taper relief bore transitions to the plunger bore across the transition bore. The transition bore extends between an external corner contiguous with the plunger bore and an internal corner contiguous with the taper relief bore and at least one of the external and internal corners is rounded and exhibits a radius. The packing bore is treated with a surface pre-stressing treatment.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: December 8, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: David Mark Stribling, Benedict I Portillo, John Dexter Brunet
  • Patent number: 10850062
    Abstract: Cleaning systems and devices are provided for cleaning body-inserted tubes (e.g., endotracheal tubes, chest cleaning tubes). In one embodiment, a closed suction system includes a suction catheter having at least one deployable (e.g., inflatable) cleaning member at a distal portion of the suction catheter and at least one suction opening distal to the cleaning member. The closed suction system module may include a control unit at its proximal end adapted to facilitate operation in one of the following three operational states: i) a first operational state in which only the cleaning member is functional, ii) a second operational state in which only suction is functional, or iii) a third operational state in which neither suction nor the cleaning member is functional.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: December 1, 2020
    Assignee: Endoclear LLC
    Inventors: Brad Eugene Vazales, David Mark Chersky
  • Publication number: 20200367618
    Abstract: A walking aid in the form of a walking stick 10 with a handle part 12 and a foldable support part 14. A rechargeable battery is provided in the handle part 12 to selectively illuminate a lighting element in the form of a plurality of LED's 28 in a lowermost section 16A of the support part 14.
    Type: Application
    Filed: December 3, 2018
    Publication date: November 26, 2020
    Inventor: David Mark DALY
  • Publication number: 20200370062
    Abstract: This document relates to methods and materials for generating oilseed (e.g., pennycress) plants that have oil with reduced levels of polyunsaturated fatty acids (PUFAs) and/or increased levels of oleic acid. For example, oilseed plants having reduced expression levels of one or more polypeptides involved in fatty acid biosynthesis (e.g., fatty acid desaturase 2 (FAD2) and reduced oleate desaturation 1 (ROD1)), as well as methods and materials for making and using such oilseed plants are provided.
    Type: Application
    Filed: February 12, 2019
    Publication date: November 26, 2020
    Inventors: Michael David Marks, Ratan Chopra, Nicole Folstad, Donald L. Wyse, John C. Sedbrook
  • Publication number: 20200363659
    Abstract: A photochromic multilayer laminate with excellent darkening and fade-back speed and an eyewear lens incorporating the laminate are described. The laminate comprises at least three layers of polyvinyl alcohol, in which the third layer, comprising polyvinyl alcohol and one or more photochromic materials, is positioned between the surfaces of the two other polyvinyl alcohol layers. In one embodiment, the laminate is free of polarizer components and polarizing coatings. In other embodiments, the photochromic materials in the third layer have a form selected from the group including nanodroplets, photochromic nanoparticles and encapsulated forms with a capsule size between about 20 and 500 nm. The laminate and the eyewear lens may have additional layers, elements and additives.
    Type: Application
    Filed: May 16, 2019
    Publication date: November 19, 2020
    Inventors: DAVID MARK AMBLER, MICHAEL DAVID PEARSON, JR., TINA HO
  • Publication number: 20200362855
    Abstract: A hose for a reciprocating pump, the hose comprising: a first end and a second end separated by a length (L) along a centerline of the hose, wherein the first end reciprocates with a reciprocating element of the reciprocating pump during operation of the reciprocating pump; an inner surface and an outer surface separated by a thickness; and a variable bend radius wherein a bend radius of a first section of the hose is different from a bend radius of at least one second section of the hose, such that, during operation of the reciprocating pump, a stress on the first end of the hose, the second end of the hose, or both the first end of the hose and the second end of the hose is reduced relative to that of a hose that does not contain the variable bend radius.
    Type: Application
    Filed: October 7, 2019
    Publication date: November 19, 2020
    Inventors: Joseph A. BEISEL, Justin Lee HURST, David Mark STRIBLING
  • Patent number: 10839702
    Abstract: There is provided systems and methods for pilot alertness and awareness of target aircraft and target obstacle that are flying within a proceeding flight path collision. Transmitted guiding sound signals consisting of three dimensional effects and tonal sounds are generated by a flight unit, and sent to the pilot's headset for the desired purpose of directing the pilot's head position to locate the target aircraft and target obstacle. The flight unit processes time of collision from received target aircraft broadcast, and contain at least GPS data and target obstacle information from stored navigational maps. The flight unit further receives the pilot's head position through means of a head tracker. Furthermore, the flight unit is able to perform the functions of, storing piloted flight information, voice language instruction, flight assisted notification, and communicating with one or multiple mobile devices such for the information to be displayed visually, and is upgradable remotely.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: November 17, 2020
    Assignee: Beeper Avionics Inc.
    Inventors: Christopher Schupp, Jay David Marks
  • Patent number: 10835138
    Abstract: Vessel perfusion and myocardial blush are determined by analyzing fluorescence signals obtained in a static region-of-interest (ROI) in a collection of fluorescence images of myocardial tissue. The blush value is determined from the total intensity of the intensity values of image elements located within the smallest contiguous range of image intensity values containing a predefined fraction of a total measured image intensity of all image elements within the ROI. Vessel (arterial) peak intensity is determined from image elements located within the ROI that have the smallest contiguous range of highest measured image intensity values and contain a predefined fraction of a total measured image intensity of all image elements within the ROI. Cardiac function can be established by comparing the time differential between the time of peak intensity in a blood vessel and that in a region of neighboring myocardial tissue both pre and post procedure.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: November 17, 2020
    Assignee: Stryker European Operations Limited
    Inventors: Peter Dvorsky, David Mark Henri Goyette, T. Bruce Ferguson, Jr., Cheng Chen
  • Patent number: 10821249
    Abstract: A closed suction system module is provided. In one embodiment, the closed suction system module includes a coupling member configured to couple to a suction port of a multi-port manifold or endotracheal tube adapter (e.g., dual-port or tri-port adapter). In one embodiment, the closed suction system module includes a suction catheter configured to clean the interior surfaces of body-inserted tubes or artificial airways (alone or in addition to suctioning natural airways or portions of the respiratory tract or other body lumens). The suction catheter may include a cleaning portion at a distal portion of the suction catheter (e.g., near the distal end or tip of the suction catheter). In some embodiments, the cleaning portion includes at least one expandable cleaning member (e.g., balloon, sleeve, wiper).
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: November 3, 2020
    Assignee: Endoclear LLC
    Inventors: Brad Eugene Vazales, David Mark Chersky
  • Publication number: 20200325133
    Abstract: Provided are compositions and methods for treating osteoarthritis including intra-articular administration of a compound of Formula (I) including amorphous and polymorph forms thereof.
    Type: Application
    Filed: December 11, 2019
    Publication date: October 15, 2020
    Inventors: John Hood, David Mark Wallace, Sunil Kumar KC, Yusuf Yazici, Christopher Swearingen, Luis A Dellamary
  • Publication number: 20200320770
    Abstract: Dialog based testing is performed in conjunction with a three-dimensional (3D) virtual reality (VR) system including at least one loudspeaker, a microphone, and a 3D VR headset having a display for displaying 3D VR video and a gaze tracker integrated with the headset. The dialog based testing includes: rendering a 3D avatar via the display of the 3D VR headset; engaging in a dialog including causing the rendered 3D avatar to make utterances in accordance with the branching dialog script and receiving responses to the utterances from a test subject wearing the 3D VR headset including at least verbal responses received via the microphone and gaze activity recorded by the gaze tracker and traversing the branching dialog script including selecting branches of the branching dialog script based at least on the verbal responses received via the microphone; and grading the test subject based on the responses.
    Type: Application
    Filed: April 7, 2020
    Publication date: October 8, 2020
    Inventors: David Mark Charlson, Richard Lawrence Shoaf
  • Patent number: 10791778
    Abstract: Polymeric gloves having stress-reducing ridges, and methods and formers for manufacturing polymeric gloves having stress-reducing ridges, are disclosed.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 6, 2020
    Assignee: Ansell Limited
    Inventors: Jali Lamar Williams, Sze Yin Ng, David Mark Lucas, Azman Hamzah
  • Publication number: 20200308596
    Abstract: This document provides oilseed plants (e.g., pennycress plants) having increased levels of one or more saturated fatty acids, increased levels of one or more polyunsaturated fatty acids (PUFAs), altered (e.g., increased or decreased) levels of oleic acid, and/or altered (e.g., increased or decreased) levels of erucic acid. For example, oilseed plants having reduced polypeptide levels and/or reduced polypeptide activity of one or more polypeptides involved in triglyceride synthesis (e.g., diacylglycerol O-acyltransferase 1 (TAG1) can have increased levels of stearic acid, increased levels of one or more PUFAs, altered levels of oleic acid, and/or altered levels of erucic acid. Also provided herein are methods and materials for making and using oilseed plants having increased levels of one or more saturated fatty acids, increased levels of one or more PUFAs, altered levels of oleic acid, and/or altered levels of erucic acid.
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Inventors: Michael David Marks, Ratan Chopra
  • Publication number: 20200279496
    Abstract: There is provided systems and methods for pilot alertness and awareness of target aircraft and target obstacle that are flying within a proceeding flight path collision. Transmitted guiding sound signals consisting of three dimensional effects and tonal sounds are generated by a flight unit, and sent to the pilot's headset for the desired purpose of directing the pilot's head position to locate the target aircraft and target obstacle. The flight unit processes time of collision from received target aircraft broadcast, and contain at least GPS data and target obstacle information from stored navigational maps. The flight unit further receives the pilot's head position through means of a head tracker. Furthermore, the flight unit is able to perform the functions of, storing piloted flight information, voice language instruction, flight assisted notification, and communicating with one or multiple mobile devices such for the information to be displayed visually, and is upgradable remotely.
    Type: Application
    Filed: January 22, 2020
    Publication date: September 3, 2020
    Inventors: Christopher Schupp, Jay David Marks
  • Patent number: 10737539
    Abstract: A method for making a compartmentalized sealant strip and barrier assembly 10 has the steps of co-extruding a barrier strip 9 of non-sealant elastomeric material with a plurality of projecting linear extending walls 9c and a sealant strip 11 wherein the sealant strip 11 is formed on one side of the barrier strip 9 filling the space between the plurality of projecting walls 9c to form a plurality of linearly extending rows of sealant 11 across the transverse width of the co-extrusion to form the compartmentalized sealant strip and barrier assembly 10. The step of co-extruding may further include the step of: forming the projecting walls 9c on an inclined angle relative to a plane perpendicular to the width of the assembly 10.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: August 11, 2020
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Michael Charles Ruegg, Jr., Ernest Wilford Looman, Jr., Donald Edward Helle, Patrick David Marks, Thomas Roy Fuhrig, Joseph Alan Incavo, James Earl Koerner, Terrence Lee Parsons, Charles Kenneth Schmalix, Warren James Busch, Timothy Patrick Lovell
  • Publication number: 20200249804
    Abstract: Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing at least one program and a method for navigating an avatar based on time zones. A global event is identified that begins at a particular time on a given date; a sequential list of time zones associated with a plurality of geographical locations is retrieved; and a current time at a first time zone of the sequential list of time zones is determined to have reached the particular time on the given date. In response, an avatar is generated for display on a map at a first of the plurality of geographical locations associated with the first time zone and is navigated to a second geographical location when a current time at a second time zone, associated with the second geographical location, reaches the particular time on the given date.
    Type: Application
    Filed: April 10, 2020
    Publication date: August 6, 2020
    Inventors: Sumbul Alvi, David Mark, Kimberly A. Phifer, Graham Reid, Suraj Vindana Samaranayake, Alexandre Valdetaro Porto
  • Publication number: 20200223834
    Abstract: The present disclosure provides ?-diketones or analogs thereof, that activate Wnt/?-catenin signaling and thus treat or prevent diseases related to signal transduction, such as osteoporosis and osteoarthropathy; osteogenesis imperfecta, bone defects, bone fractures, periodontal disease, otosclerosis, wound healing, craniofacial defects, oncolytic bone disease, traumatic brain injuries or spine injuries, brain atrophy/neurological disorders related to the differentiation and development of the central nervous system, including Parkinson's disease, strokes, ischemic cerebral disease, epilepsy, Alzheimer's disease, depression, bipolar disorder, schizophrenia; otic disorders like cochlear hair cell loss; eye diseases such as age related macular degeneration, diabetic macular edema or retinitis pigmentosa and diseases related to differentiation and growth of stem cell, such as hair loss, hematopoiesis related diseases and tissue regeneration related diseases.
    Type: Application
    Filed: September 20, 2019
    Publication date: July 16, 2020
    Inventors: Sunil Kumar KC, David Mark Wallace, John Hood, Charlene F. Barroga
  • Patent number: 10709151
    Abstract: Pennycress seed, seed lots, and seed meal having reduced fiber content and improved suitability for use in producing animal feed are provided.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: July 14, 2020
    Assignees: COVERCRESS, INC., Board of Trustees of Illinois State University, Regents of the University of Minnesota
    Inventors: Tim Ulmasov, Gary Hartnell, John C. Sedbrook, Michael David Marks, Ratan Chopra, Maliheh Esfahanian