Patents by Inventor Daniel Joshua Smith
Daniel Joshua Smith 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: 11852240Abstract: A rotational seal assembly is associated with a rotating component. The rotational seal includes an outer casing, an inner casing, a rotational seal connected to the outer casing and the inner casing, and a followability enhancer. A section of the rotational seal includes a heel portion and a toe portion. The rotational seal is configured to contact, via a first surface of the section of the rotational seal and during operation of the rotating component, the rotating component. The followability enhancer is configured to contact, during the operation of the rotating component, a first region of a second surface of the section of the rotational seal that is associated with the toe portion. The followability enhancer is configured to not contact, during the operation of the rotating component, a second region of the second surface of the section of the rotational seal that is associated with the heel portion.Type: GrantFiled: February 24, 2022Date of Patent: December 26, 2023Assignee: Caterpillar Inc.Inventors: Elmer S Zanoria, Hong Lian, Keith Harmeyer, Daniel Joshua Smith
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Patent number: 11796063Abstract: A seal assembly for a rotatable shaft assembly includes a seal housing and each of a main seal and a dust seal extending circumferentially around a seal housing center axis. The dust seal includes a radially inward dust seal lip, and is formed by a sealing layer having a plurality of ventilation openings formed therein, and a debris-blocking filter layer attached to the sealing layer and positioned across the ventilation openings. The main seal and dust seal assist in maintaining lubricating oil within a seal cavity. The dust seal prevents entry of debris whilst ventilating the seal cavity to limit carbonization of oil on seal assembly components. In an implementation the seal assembly is part of a rotatable crankshaft assembly.Type: GrantFiled: May 27, 2021Date of Patent: October 24, 2023Assignee: Caterpillar Inc.Inventors: Keith Joseph Harmeyer, Elmer S. Zanoria, Daniel Joshua Smith
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Publication number: 20230265925Abstract: A rotational seal assembly is associated with a rotating component. The rotational seal includes an outer casing, an inner casing, a rotational seal connected to the outer casing and the inner casing, and a followability enhancer. A section of the rotational seal includes a heel portion and a toe portion. The rotational seal is configured to contact, via a first surface of the section of the rotational seal and during operation of the rotating component, the rotating component. The followability enhancer is configured to contact, during the operation of the rotating component, a first region of a second surface of the section of the rotational seal that is associated with the toe portion. The followability enhancer is configured to not contact, during the operation of the rotating component, a second region of the second surface of the section of the rotational seal that is associated with the heel portion.Type: ApplicationFiled: February 24, 2022Publication date: August 24, 2023Applicant: Caterpillar Inc.Inventors: Elmer S. ZANORIA, Hong LIAN, Keith HARMEYER, Daniel Joshua SMITH
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Publication number: 20220381347Abstract: A seal assembly for a rotatable shaft assembly includes a seal housing and each of a main seal and a dust seal extending circumferentially around a seal housing center axis. The dust seal includes a radially inward dust seal lip, and is formed by a sealing layer having a plurality of ventilation openings formed therein, and a debris-blocking filter layer attached to the sealing layer and positioned across the ventilation openings. The main seal and dust seal assist in maintaining lubricating oil within a seal cavity. The dust seal prevents entry of debris whilst ventilating the seal cavity to limit carbonization of oil on seal assembly components. In an implementation the seal assembly is part of a rotatable crankshaft assembly.Type: ApplicationFiled: May 27, 2021Publication date: December 1, 2022Applicant: Caterpillar Inc.Inventors: Keith Joseph Harmeyer, Elmer S. Zanoria, Daniel Joshua Smith
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Publication number: 20200095752Abstract: A shield subassembly includes a support member, a resilient member, and a shield member defining an annular perimeter that surrounds the resilient member.Type: ApplicationFiled: September 26, 2018Publication date: March 26, 2020Applicant: Caterpillar Inc.Inventors: Patrick Simon Campomanes, Jonathan Stuart Borden, Brandon H. McCaffrey, Pradeep Chapagain, Daniel Joshua Smith
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Image unit having positional control features for use in an electrophotographic image forming device
Patent number: 10401785Abstract: A replaceable imaging unit according to one example embodiment includes a photoconductor unit positioned at the front of a housing of the imaging unit. First and second alignment guides extend outward at the same height from first and second sides of the housing, respectively, on the photoconductor unit and run parallel to each other along a front-to-rear dimension of the housing. Each of the first and second alignment guides includes a front contact member at a front end thereof and a rear contact member at a rear end thereof. The front contact members are positioned further outward sideways than the rear contact members. Bottom surfaces of the front and rear contact members are unobstructed to permit the bottom surfaces of the front and rear contact members to sit on top of corresponding guide rails in the image forming device to control a vertical position of the imaging unit.Type: GrantFiled: December 3, 2018Date of Patent: September 3, 2019Assignee: Lexmark International, Inc.Inventors: Brian Scott Carpenter, Jason Paul Hale, James Richard Leemhuis, Matthew Lee Rogers, Daniel Joshua Smith, Edward Lynn Triplett -
Publication number: 20190101862Abstract: A replaceable imaging unit according to one example embodiment includes a photoconductor unit positioned at the front of a housing of the imaging unit. First and second alignment guides extend outward at the same height from first and second sides of the housing, respectively, on the photoconductor unit and run parallel to each other along a front-to-rear dimension of the housing. Each of the first and second alignment guides includes a front contact member at a front end thereof and a rear contact member at a rear end thereof. The front contact members are positioned further outward sideways than the rear contact members. Bottom surfaces of the front and rear contact members are unobstructed to permit the bottom surfaces of the front and rear contact members to sit on top of corresponding guide rails in the image forming device to control a vertical position of the imaging unit.Type: ApplicationFiled: December 3, 2018Publication date: April 4, 2019Inventors: BRIAN SCOTT CARPENTER, JASON PAUL HALE, JAMES RICHARD LEEMHUIS, MATTHEW LEE ROGERS, DANIEL JOSHUA SMITH, EDWARD LYNN TRIPLETT
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Patent number: 10175643Abstract: A replaceable imaging unit according to one example embodiment includes a photoconductor unit positioned at the front of a housing of the imaging unit. First and second alignment guides extend outward at the same height from first and second sides of the housing, respectively, on the photoconductor unit and run parallel to each other along a front-to-rear dimension of the housing. Each of the first and second alignment guides includes a front contact member at a front end thereof and a rear contact member at a rear end thereof. The front contact members are positioned further outward sideways than the rear contact members. Bottom surfaces of the front and rear contact members are unobstructed to permit the bottom surfaces of the front and rear contact members to sit on top of corresponding guide rails in the image forming device to control a vertical position of the imaging unit.Type: GrantFiled: October 2, 2017Date of Patent: January 8, 2019Assignee: Lexmark International, Inc.Inventors: Brian Scott Carpenter, Jason Paul Hale, James Richard Leemhuis, Matthew Lee Rogers, Daniel Joshua Smith, Edward Lynn Triplett
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Publication number: 20180364639Abstract: A replaceable imaging unit according to one example embodiment includes a photoconductor unit positioned at the front of a housing of the imaging unit. First and second alignment guides extend outward at the same height from first and second sides of the housing, respectively, on the photoconductor unit and run parallel to each other along a front-to-rear dimension of the housing. Each of the first and second alignment guides includes a front contact member at a front end thereof and a rear contact member at a rear end thereof. The front contact members are positioned further outward sideways than the rear contact members. Bottom surfaces of the front and rear contact members are unobstructed to permit the bottom surfaces of the front and rear contact members to sit on top of corresponding guide rails in the image forming device to control a vertical position of the imaging unit.Type: ApplicationFiled: October 2, 2017Publication date: December 20, 2018Inventors: BRIAN SCOTT CARPENTER, JASON PAUL HALE, JAMES RICHARD LEEMHUIS, MATTHEW LEE ROGERS, DANIEL JOSHUA SMITH, EDWARD LYNN TRIPLETT
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Patent number: 9897158Abstract: An isolation mount assembly comprises a resilient member defining a central aperture that defines a load axis and an annular depression about the load axis, and an adapter plate including an outer mechanical attachment structure that defines a first thickness and an inner attachment structure that is closer to the load axis than the outer attachment structure along a direction that is perpendicular to the load axis and that defines a second thickness. The inner attachment structure is disposed in the annular depression and the second thickness is at least twice the first thickness.Type: GrantFiled: June 29, 2016Date of Patent: February 20, 2018Assignee: Caterpillar Inc.Inventors: Brett D. Ellen, Daniel Joshua Smith, Wen Zhong, Hong Lian, Matt Schwarzendruber, Ross Paul Wietharn, James D. Neirynck
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Publication number: 20180003254Abstract: An isolation mount assembly comprises a resilient member defining a central aperture that defines a load axis and an annular depression about the load axis, and an adapter plate including an outer mechanical attachment structure that defines a first thickness and an inner attachment structure that is closer to the load axis than the outer attachment structure along a direction that is perpendicular to the load axis and that defines a second thickness. The inner attachment structure is disposed in the annular depression and the second thickness is at least twice the first thickness.Type: ApplicationFiled: June 29, 2016Publication date: January 4, 2018Applicant: Caterpillar Inc.Inventors: Brett D. Ellen, Daniel Joshua Smith, Wen Zhong, Hong Lian, Matt Schwarzendruber, Ross Paul Wietharn, James D. Neirynck