With Positive Pump Operating Means Patents (Class 152/419)
  • Patent number: 10807422
    Abstract: An inlet control valve suitable for use with a tire and pump assembly is described that controls the flow of air from the pump into the tire. The inlet control valve includes an optional bi-directional feature. The pathways alternatively operate to deliver ambient non-pressurized air to the air pumping tube in response to directional tire rotation against a ground surface.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: October 20, 2020
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Cheng-Hsiung Lin, Robin Lamgaday, Christos Tsionidis, Frank Herrigel, Marcus Boertje
  • Patent number: 10773559
    Abstract: An air maintenance tire system is provided. The tire includes a pair of sidewalls, in which each one of the sidewalls extends from a respective bead area to a crown of the tire. The air maintenance tire includes an annular groove formed in a selected one of the tire sidewalls. The groove is formed with an open end at an outer surface of the tire sidewall and a closed end opposite the open end. The open end is formed with an outward radial taper and the groove is formed with at least one increased diameter feature. An air tube of a peristaltic pump assembly is received in the groove.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: September 15, 2020
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Thulasiram Gobinath, Jin-Shy Steve Gau, Cheng-Hsiung Lin
  • Patent number: 10322611
    Abstract: A system is used with a pneumatic tire mounted on a wheel rim to keep a tire cavity of the pneumatic tire from becoming underinflated from a set pressure. The first system includes a plurality of pumps attached circumferentially to the wheel rim, each pump having a piston for inflating the tire cavity and a weight for moving the piston, and a stop mechanism for each pump, the stop mechanism including a stop piston, a stop cylinder, a first spring, and a second spring, when air pressure in the tire cavity reaches the set pressure, the set pressure overcomes a force of the first spring against the stop piston and moves the stop piston into a stopping engagement with the weight, when air pressure in the tire cavity is below the set pressure, the second spring overcomes the force of the first spring and moves the stop piston away from the weight.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: June 18, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jin-Shy Steve Gau, Cheng-Hsiung Lin
  • Patent number: 10315470
    Abstract: An air maintenance tire assembly includes a tire having a tire cavity bounded by first and second sidewalls extending to a tire tread region, a pressure control assembly attached to an elongate valve stem projecting from a rim, the pressure control assembly being external to the tire cavity, the elongate valve stem projecting outward from the tire cavity and operative to admit pressurized air into the tire cavity through the pressure control assembly, the first sidewall having an annular sidewall air passageway therein operatively located to compress segment by segment responsive to a bending strain introduced into the first sidewall from a rolling tire footprint thereby forcing air, segment by segment, along the annular air passageway, a tube housing joining both ends of the annular air passageway, and a connecting tube extending from the tube housing to the pressure control assembly, the connecting tube operative to sequentially direct air forced along the air passageway, first, into the tube housing, the p
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: June 11, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Robin Lamgaday, Robert Leon Benedict
  • Patent number: 10144255
    Abstract: An air maintenance tire assembly includes a tire having a tire cavity bounded by first and second sidewalls extending to a tire tread region and air pumping means for generating pressurized air for maintaining air pressure within the tire cavity at a preset pressure level. The air pumping means includes an upper mounting plate fixed to a vehicle rim, a lower mounting plate fixed to the rim and diametrically opposed to the upper mounting plate, a dynamic mass pivotally attached to the upper mounting plate at a first end of the dynamic mass, and a pump fixed to the lower mounting plate and pivotally attached to a second end of the dynamic mass.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: December 4, 2018
    Inventors: Jin-Shy Steve Gau, Cheng-Hsiung Lin
  • Patent number: 9701166
    Abstract: A self-inflating tire assembly includes an air tube connected to a tire and defining an air passageway, the air tube being composed of a flexible material operative to allow an air tube segment opposite a tire footprint to flatten, closing the passageway, and resiliently unflatten into an original configuration. The air tube is sequentially flattened by the tire footprint in a direction opposite to a tire direction of rotation to pump air along the passageway to a regulator device. The regulator device regulates the inlet air flow to the air tube and the outlet air flow to the tire cavity.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: July 11, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Daniel Paul Luc Marie Hinque
  • Patent number: 9694633
    Abstract: A movable tire inflation apparatus includes an inflation device and a fixing structure. The inflation device includes a casing defining an accommodation room. The accommodation room is equipped with an inflation component, and an electrical control module which is connected electronically to the inflation component. At least one magnetic positioning member is disposed at one side of the casing. The fixing structure is disposed at an outer side of the inflation device in such a manner to fix the inflation device on an outer side of a wheel and the magnetic positioning member is magnetically positioned at one side of the wheel. In this way, the movable tire inflation apparatus is fixed on the outer side of the wheel and connected to the wheel by the inflation device, to inflate a tire as the wheel is moving, providing advantages in easy carriage, repair convenience and safety improvement.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: July 4, 2017
    Assignee: Greencell Industries Co., Ltd.
    Inventor: Shengti Chen
  • Patent number: 9682599
    Abstract: An air maintenance system includes a rotating inner ring associated with a vehicle wheel, a stationary outer ring maintaining a constant angular position, the stationary outer ring including ring segments secured together by a plurality of connecting shafts, an occlusion roller rotationally fixed to the stationary outer ring by a first connecting shaft of the plurality of connecting shafts, the occlusion roller having a protruding portion centered axially at a radially outer surface of the occlusion roller with axially outer portions of the occlusion roller being radially recessed from the protruding portion and supported by bearing surfaces of the rotating inner ring, spacer rollers rotationally fixed to the stationary outer ring by second and third connecting shafts of the plurality of connecting shafts and rotationally supported by the bearing surfaces, and a flexible tube defining a pump cavity, the air maintenance system pumping a fluid from the ambient environment into a pneumatic tire by applying an oc
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: June 20, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Daniel Paul Luc Marie Hinque, Gilles Bonnet, Olivier Di Prizio, Gauthier Piret
  • Patent number: 9604511
    Abstract: A tire assembly includes: a tire having a pneumatic cavity; first and second sidewalls extending respectively from first and second tire bead regions to a tire tread region, the first sidewall having at least one bending region operatively bending when circumferentially adjacent a rolling tire footprint; a sidewall groove defined by groove sidewalls positioned within the bending region of the first tire sidewall, the groove deforming segment by segment between a non-deformed state and a deformed, constricted state in response to the bending of the first sidewall bending region circumferentially adjacent the rolling tire footprint; an air passageway resiliently deforming segment by segment between an expanded condition and an at least partially collapsed condition in response to respective segment by segment deformation of the sidewall groove when circumferentially adjacent the rolling tire footprint; and an assembly mounted to the first sidewall the tire, the assembly including a pressure regulator with an el
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: March 28, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Robert Leon Benedict, Robin Lamgaday, Cheng-Hsiung Lin
  • Patent number: 9533534
    Abstract: An air maintenance tire assembly includes a tire having a tire cavity to a tire tread region, a pressure control assembly attached to an elongate valve stem projecting from a rim, the pressure control assembly being external to the tire cavity, the elongate valve stem projecting outward from the tire cavity and operative to admit pressurized air into the tire cavity through the pressure control assembly, the first sidewall having an elongate sidewall air passageway therein operatively located to compress segment by segment from an expanded diameter to a substantially reduced diameter responsive to a bending strain introduced into the first sidewall from a rolling tire footprint thereby forcing air, segment by segment, along the air passageway, and a connecting tube connected to the air passageway and the pressure control assembly.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: January 3, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Robin Lamgaday
  • Patent number: 9421832
    Abstract: An air maintenance tire and pump assembly comprising: a tire having two spaced inextensible beads; a ground contacting tread portion; a pair of individual sidewalls extending radially inward from the axial outer edges of said tread portion to join the respective beads; a supporting carcass for the tread portion and sidewalls; an innerliner disposed radially inward of the carcass, the innerliner having a innerliner surface facing an interior cavity of the tire; an elongate substantially annular air passageway enclosed within a bending region of the tire, the air passageway operatively closing and opening segment by segment as the bending region of the tire passes through a rolling tire footprint to pump air along the air passageway; an air inlet port assembly coupled to and in air flow communication with the air passageway at an inlet air passageway junction, the air inlet port assembly operable to channel inlet air from outside of the tire into the air passageway, the air inlet port assembly comprising a regu
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: August 23, 2016
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Carolin Anna Welter, Dinesh Chandra, Robert Allen Losey
  • Publication number: 20150114537
    Abstract: A device for maintaining a desired inflation pressure within a tire mounted on a wheel of a vehicle which includes a flexible compression chamber and a magnetic element not on the wheel. As the compressor passes the magnet each wheel revolution, a small amount of atmospheric air is pumped into the tire, if needed. The magnet and the compressor need no other contact with the vehicle or the wheel and require no energy source on the wheel.
    Type: Application
    Filed: January 6, 2015
    Publication date: April 30, 2015
    Inventor: RICHARD LOEWE
  • Publication number: 20150096657
    Abstract: A pneumatic control valve that, when implemented inside a pneumatic tire having an internal reversible peristaltic pump, is configured to prevent air from entering the peristaltic pump if a tire air pressure in a pressurizable cavity of the tire is greater than a selectable set point pressure. The control valve is further configured to open an air passage between an atmosphere external to the tire and an intake of the peristaltic pump if the tire air pressure in the pressurizable cavity of the tire is less than or equal to the selectable set point pressure.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Inventors: Larry P. Bennett, Lalit M. Patil
  • Publication number: 20150096656
    Abstract: A tire inflation system having a spindle that has a spindle fastener hole and spindle passage through which a pressurized gas flows for inflating a tire. An adapter or a fastener tube may inhibit pressurized gas from flowing from the spindle passage into the spindle fastener hole.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Applicant: ArvinMeritor Technology, LLC
    Inventors: James G. Polubinski, Timothy J. Boothby, Kevin Tracy, Nicholas S. Lakin
  • Patent number: 8991456
    Abstract: An air maintenance tire and pump assembly includes an elongate annular air passageway enclosed within a bending region of a tire, the air passageway operatively closing and opening segment by segment as the bending region of the tire passes through a rolling tire footprint to pump air along the air passageway. A pair of inline valves are positioned on respective opposite sides of an inlet junction and direct a flow of inlet air in opposite directions into the air passageway; and a pair of outlet valves are positioned at a downstream side of a respective inline valve and direct a flow of the inlet air from the downstream side of a respective inline valve toward the tire cavity. The valves are selectively opened by a direction of air flow within the air passageway which, in turn, is directionally determined by the direction in which the tire rotates.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: March 31, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Thulasiram Gobinath
  • Publication number: 20150068654
    Abstract: A tire inflation system having a rotary coupling. The rotary coupling may have a mounting member and a rotating member. The rotating member may be rotatably coupled to the mounting member and may have a rotating member passage that may fluidly connect a first conduit to a second conduit that may be fluidly connected to the tire.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 12, 2015
    Applicant: ArvinMeritor Technology, LLC
    Inventors: Eric Lewandowski, Aaron Sinka
  • Publication number: 20150059947
    Abstract: A tire inflation system having a peristaltic pump. The peristaltic pump may output a pressurized gas when a flexible tube of the peristaltic pump rotates with a wheel end assembly about an axis.
    Type: Application
    Filed: August 27, 2013
    Publication date: March 5, 2015
    Applicant: ArvinMeritor Technology, LLC
    Inventors: Michael Andrew Power, Christopher Keeney
  • Patent number: 8960249
    Abstract: A self-inflating tire assembly includes an air tube connected to a tire and defining an air passageway, the air tube being composed of a flexible material operative to allow an air tube segment opposite a tire footprint to flatten, closing the passageway, and resiliently unflatten into an original configuration. The air tube is sequentially flattened by the tire footprint in a direction opposite to a tire direction of rotation to pump air along the passageway to an inlet device for exhaust from the passageway or to an outlet device for direction into the tire cavity.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: February 24, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Cheng-Hsiung Lin
  • Patent number: 8955566
    Abstract: A device for maintaining a desired inflation pressure within a tire mounted on a wheel of a vehicle which includes a flexible compression chamber and a magnetic element not on the wheel. As the compressor passes the magnet each wheel revolution, a small amount of atmospheric air is pumped into the tire, if needed. The magnet and the compressor need no other contact with the vehicle or the wheel and require no energy source on the wheel.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: February 17, 2015
    Inventor: Richard Loewe
  • Patent number: 8919402
    Abstract: An apparatus and method are described for extracting useful work from pressure transients in a pneumatic tire to replace lost air from the tire. The apparatus and method operate continuously and without human intervention. When also used with a pressure relief valve, the apparatus and method permit the tires that are being driven to be maintained at a desired average pressure.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: December 30, 2014
    Inventor: Anthony D. A. Hansen
  • Publication number: 20140345768
    Abstract: A device for maintaining and changing the pressure In a is provided whereby the inner pressure space of the tire is connected through a pump to a pressure accumulator which, at its input and/or output into the inner pressure space of the tire, is fitted with at least one pressure control element. The pump can be a peristaltic pump in the shape of a deformable hose placed on the perimeter of the tire, fitted with an air inlet and an air outlet, while the air inlet and the air outlet are positioned on the perimeter of the tire distant from each other by a preset length, dependent on the deformation of the tire.
    Type: Application
    Filed: November 13, 2012
    Publication date: November 27, 2014
    Applicant: SITHOLD S.R.O.
    Inventor: Frantisek Hrabal
  • Patent number: 8857484
    Abstract: A self-inflating tire assembly includes an air tube connected to a tire and defining an air passageway, the air tube being composed of a flexible material operative to allow an air tube segment opposite a tire footprint to flatten, closing the passageway, and resiliently unflatten into an original configuration. The air tube is sequentially flattened by the tire footprint in a direction opposite to a tire direction of rotation to pump air along the passageway to an inlet device for exhaust from the passageway or to an outlet device for direction into the tire cavity. The inlet device is positioned within the annular passageway 180 degrees opposite the outlet device such that sequential flattening of the air tube by the tire footprint effects pumping of air along the air passageway with the tire rotating in either a forward or reverse direction of rotation. The invention further includes an inlet device for regulating the inlet flow of the air tube pump.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: October 14, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Daniel Paul Luc Marie Hinque
  • Patent number: 8826955
    Abstract: A tire assembly includes a tire, sidewalls, and a sidewall groove. The tire has a pneumatic cavity. The sidewall has at least one bending region operatively bending when radially within a rolling tire footprint of the tire. The sidewall groove is defined by groove sidewalls positioned within the bending region of the tire sidewall. The sidewall groove deforms segment by segment between a non-deformed state and a deformed, constricted state in response to the bending of the sidewall bending region when radially within the rolling tire footprint. An air passageway is defined by the sidewall groove and a cover strip. The air passageway resiliently deforms segment by segment between an expanded condition and an at least partially collapsed condition in response to respective segment by segment deformation of the sidewall groove when radially within the rolling tire footprint.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: September 9, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Andres Ignacio Delgado, Christopher David Dyrlund
  • Patent number: 8820376
    Abstract: A diaphragm pump for use in a self-inflating tire assembly is disclosed. The assembly includes a tire mounted to a rim tire mounting surface. The tire has an internal cavity. The invention further includes a pump device mounted to the rim, and the pump device has a first end and a second end, the first end being mounted within the tire cavity and the second end located outside the rim and in fluid communication with the outside air. The first end of the pump device has a flexible member having an outer rim and an inner rim, wherein the outer rim is connected to a backing plate and an inner rim is connected to a piston, wherein the piston is slidably mounted within a chamber of the backing plate. The piston has an inner passageway for fluid communication with the tire cavity and the chamber, and the second end of the pump device has an internal bore in fluid communication with the outside air and the chamber.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: September 2, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Rene Louis Bormann
  • Patent number: 8807182
    Abstract: The present invention provides an automatic tire pressurizing and regulating system. The system maintains a predetermined pressure in a pneumatic tire during rotation of the tire. The system comprises a fill valve, one or more pumping devices, and a belt that provides fluid pathways that allow fluid (e.g., air) to flow between the outside atmosphere, the pumping device(s), and the tire as needed to maintain the predetermined pressure.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: August 19, 2014
    Inventor: Steven Jerome Kelly
  • Patent number: 8763661
    Abstract: A tire inflation system that couples to the wheel of a vehicle, the tire inflation system including a pumping ring that rotates with the wheel; a positioning system rotatably coupled to the wheel, the positioning system including a positioning mechanism and an eccentric mass; a planetary roller disposed in non-slip contact with the pumping ring and the positioning system; and a flexible diaphragm that defines a pump cavity, wherein relative motion between the pumping ring and positioning system is translated by the planetary roller into an occluding force that deforms the diaphragm to occlude the pump cavity. Relative motion between the pumping ring and the positioning system is achieved by coupling the eccentric mass to the positioning mechanism to offset the center of mass of the positioning system from the center of rotation of the positioning system.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: July 1, 2014
    Assignee: Aperia Technologies, Inc.
    Inventor: Brandon Richardson
  • Patent number: 8746306
    Abstract: A self-inflating tire assembly includes an air tube connected to a tire and defining an air passageway, the air tube being composed of a flexible material operative to allow an air tube segment opposite a tire footprint to flatten, closing the passageway, and resiliently unflatten into an original configuration. The air tube is sequentially flattened by the tire footprint in a direction opposite to a tire direction of rotation to pump air along the passageway to an inlet device for exhaust from the passageway or to an outlet device for direction into the tire cavity. The inlet device is positioned within the annular passageway 180 degrees opposite the outlet device such that sequential flattening of the air tube by the tire footprint effects pumping of air along the air passageway with the tire rotating in either a forward or reverse direction of rotation. The invention further includes an outlet device for regulating the tire cavity pressure and flow into the cavity.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: June 10, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Daniel Paul Luc Marie Hinque, Lois Levy, Gilles Bonnet
  • Patent number: 8695661
    Abstract: A groove defined by groove sidewalls is positioned within the bending region of a tire sidewall. An elongate air tube positioned within the sidewall groove is in contacting engagement with the groove sidewalls and resiliently squeezes and collapses segment by segment as the groove constricts segment by segment within the rolling tire footprint. A longitudinally oriented projecting locking rib extends from a tube sidewall and registers within a complementary configured and located detent extending adjacent the groove to deter lateral movement of the tube within the groove after insertion. An annular projecting ridge extends from the groove for engaging the sidewalls of the air tube to deter an axial movement of the tube within the groove after insertion.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: April 15, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Andres Ignacio Delgado, Christopher David Dyrlund
  • Patent number: 8573270
    Abstract: A self-inflating tire assembly includes an air tube connected to a tire and defining an air passageway, the air tube being composed of a flexible material operative to allow an air tube segment opposite a tire footprint to flatten, closing the passageway, and resiliently unflatten into an original configuration. The air tube is sequentially flattened by the tire footprint in a direction opposite to a tire direction of rotation to pump air along the passageway to a regulator device. The regulator device regulates the inlet air flow to the air tube and the outlet air flow to the tire cavity.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: November 5, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Daniel Paul Luc Marie Hinque
  • Patent number: 8550137
    Abstract: A tire for a self-inflating tire system includes an annular air tube-receiving groove formed within a tire carcass wall at a prescribed radial location. The groove has an access opening, a primary internal groove chamber dimensioned and profiled for close receipt of an annular air-pump tube. A secondary expansion chamber of the groove communicates with the internal groove chamber for operationally receiving a flattened air-pump tube extended portion during tire operation. A passageway is located at a prescribed outlet location along the annular air tube-receiving groove, the passageway extending from the groove to an axially inward terminal end within the tire carcass wall separated from a tire inner liner by a removable wall partition of reduced sectional thickness.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: October 8, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Andres Ignacio Delgado, Christopher David Dyrlund, Mark Anthony Sieverding
  • Patent number: 8534335
    Abstract: A self-inflating tire assembly includes one or more air tube(s) connected to a tire and having a plurality of adjoining diaphragm chambers separated by a one-way valve. An air passageway extends through the air tube and the diaphragm chambers. The one-way valve allows a directional passage of air through the valve from an inlet valve side an outlet valve side. The footprint in a rotating tire sequentially collapses the diaphragm chambers to directionally pump air through the one-way valve between the diaphragm chambers and along the air passageway from an air tube inlet device to an air tube outlet device.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: September 17, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Robert Leon Benedict
  • Patent number: 8528611
    Abstract: A vehicle tire inflation system includes an air supply that is connected to a vehicle tire by a pneumatic conduit. A pump that is independent of and pneumatically parallel to the vehicle air supply includes an inlet and an outlet. The pump inlet receives air from atmosphere, the pump compresses the air, and the pump outlet is fluidly connected to the pneumatic conduit. When the air pressure in the pneumatic conduit drops below a predetermined level, compressed air from the pump is introduced into the pneumatic conduit, thus increasing the air pressure in the conduit to increase the air pressure that is available to the tire. A reservoir tank, which is also independent of the vehicle air supply, may be in fluid communication with the pump outlet and the pneumatic conduit.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: September 10, 2013
    Assignee: Hendrickson USA, L.L.C.
    Inventors: Matt J. Wilson, Phillippi R. Pierce, Matthew VanMeter, Santo Padula, Michael J. Keeler
  • Patent number: 8479791
    Abstract: This is an invention for a system and method of automatically inflating the wheels of a vehicle during driving operation. When air pressure in a wheel of the vehicle decreases below a pre-determined limit, a solenoid device is activated to extend a kick-rod. As the wheel rotates, a pump mounted on the wheel strikes the kick-rod of the solenoid device, thereby causing air to be injected into the wheel. The automatic tire inflation system works by employing the mechanical energy of the rotating wheel to drive the pump upon contact with the solenoid device.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: July 9, 2013
    Assignee: The Brothers Company
    Inventors: Jeff Anthony Schulte, Curt Anthony Schulte, Anthony Joseph Schulte, Jill Schulte Slauson
  • Patent number: 8381784
    Abstract: A groove is positioned within the bending region of the first tire sidewall and deforms segment by segment within the rolling tire footprint. An air tube positioned within the sidewall groove is in contacting engagement with groove sidewalls and resiliently squeezes and collapses segment by segment as the groove constricts segment by segment within the rolling tire footprint. A series of adjacent projecting ridges extend from a groove sidewall segment into the groove air passageway, the projecting ridges operatively positioned to vary the applied pressure on the air tube increase the air pressure within the air tube passageway as the air tube rolls segment by segment with the tire through tire footprint. The series of projecting ridges are constructed having a variable amplitude and/or spacing frequency in a direction of air flow within the air passageway to increase the pressure applied to the air tube and air pressure of the air flowing through the tube passageway.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: February 26, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Andres Ignacio Delgado
  • Patent number: 8381785
    Abstract: A self-inflating tire assembly includes a tire having a tire cavity between first and second sidewalls that extend respectively from first and second tire core beads to a tire tread region. At least one of the sidewalls is provided with an air tube peristaltic pump assembly. An air tube has an internal tube air passageway and is positioned within a sidewall groove in contacting engagement with opposite groove surfaces surrounding the air tube. The sidewall groove operatively bends within a rolling tire footprint to compress the air tube from an expanded diameter to a flat diameter adjacent the rolling tire footprint. A core bead passageway extends within a core bead adjacent the one tire sidewall for operatively storing air evacuated from the air tube passageway. Conduits are provided to route air from the air tube to the core bead passageway and valve mechanisms are positioned within the core bead passageway to control the flow of air from the core bead passageway into the tire cavity.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: February 26, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Robert Allen Losey
  • Publication number: 20120285596
    Abstract: A device for transport of air in the tire P or close to it consisting of a chamber K in the shape of a hollow compressible channel, placed along at least a part of the tire perimeter, characterized by the fact that a ring OK is placed at the inner side of the chamber K with the distance of its outer side from the tire axis of rotation equal to 1 to 1.1 multiple of the distance of the bottom side of the chamber K from the axis of rotation of the tire P.
    Type: Application
    Filed: November 11, 2010
    Publication date: November 15, 2012
    Applicant: SITHOLD, S.R.O.
    Inventor: Frantisek Hrabal
  • Patent number: 8291950
    Abstract: A tire assembly includes a tire carcass body and an air tube body extending between an outward facing tire body surface and an inward tire body surface. The air tube body has an enclosed hollow enclosed outlet end at a first end and an enclosed hollow inlet end at an opposite second end. An air passageway extends through the air tube body from the inlet end to the outlet end. The outlet end is positioned to face exposed from the outward tire body surface and the inlet end is positioned to face exposed from the inward tire body surface. The air tube body is integrally formed of resilient flexible material composition and includes a hollow outer casing and one or more hollow air cables positioned within the casing for regulating the rate of air flow from the inlet end to the outlet end.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: October 23, 2012
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Daniel Paul Luc Marie Hinque, Jean Joseph Victor Collette, René Louis Bormann, Massimo Di Giacomo Russo, Gilles Bonnet
  • Patent number: 8235081
    Abstract: A tire for a self-inflating tire system includes a tire carcass having an annular air tube-receiving groove formed within a tire carcass wall and a pump assembly within the groove. The pump assembly includes an air tube having an axial air passageway; an inlet device positioned along the air tube, the inlet having a tubular inlet body having an internal air passageway aligned with the air tube and having at least one inlet opening extending through the inlet body for admitting air into the tubular inlet body. The inlet device further includes an air filtering sleeve at least partially surrounding the inlet opening of the inlet device, the sleeve having a tubular sleeve body at least partially surrounding and in co-axial relationship the tubular inlet body.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: August 7, 2012
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Andres Ignacio Delgado, Christopher David Dyrlund, Mark Anthony Sieverding
  • Publication number: 20120186714
    Abstract: A tire inflation system that couples to the wheel of a vehicle, the tire inflation system including a pumping ring that rotates with the wheel; a positioning system rotatably coupled to the wheel, the positioning system including a positioning mechanism and an eccentric mass; a planetary roller disposed in non-slip contact with the pumping ring and the positioning system; and a flexible diaphragm that defines a pump cavity, wherein relative motion between the pumping ring and positioning system is translated by the planetary roller into an occluding force that deforms the diaphragm to occlude the pump cavity. Relative motion between the pumping ring and the positioning system is achieved by coupling the eccentric mass to the positioning mechanism to offset the center of mass of the positioning system from the center of rotation of the positioning system.
    Type: Application
    Filed: July 21, 2011
    Publication date: July 26, 2012
    Inventor: Brandon Richardson
  • Patent number: 8156978
    Abstract: An air passageway body resides within a tire body and extends between an outward facing tire body surface and the tire cavity, the air passageway body having an enclosed air passageway extending between a hollow body outlet end facing the tire cavity and a hollow inlet end facing outward from the outward facing tire body surface. A tapping device is affixed over one or both of the ends of the air passageway body, the tapping device having an external vent opening and a protrusion member penetrating through a sidewall of the air passageway body to operatively establish an air flow path extending between the air passageway of the air passageway body through the protrusion member and the tapping device vent opening. The air passageway body is installed pre-cure within a green tire carcass build of the tire body and the tapping device(s) are attached post-cure to the air passageway body.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: April 17, 2012
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Daniel Paul Luc Marie Hinque, Jean Joseph Victor Collette, René Louis Bormann, Massimo Di Giacomo Russo, Gilles Bonnet
  • Patent number: 8123494
    Abstract: A wheel-supporting roller-bearing unit with air compressor that is compact and capable of keeping resistance against the rotation of the hub 4c low while at the same time maintaining good balance, and when necessary, is capable of obtaining compressed air having sufficient pressure regardless of the traveling speed of the vehicle. A plurality of cylinder holes 53 are located at a plurality of locations that are evenly spaced around the circumferential direction on the inside of a cylinder block 50 that is connected and fastened to the inside end section in the axial direction of the hub 4c. Pistons 54 fit inside these cylinder holes 53 and are moved back and forth by a piston-drive mechanism 62 as the cylinder block 50 rotates. The air compressor 2c is a reciprocating-piston compressor, so it is possible to obtain the required air pressure regardless of rpm.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: February 28, 2012
    Assignee: NSK Ltd.
    Inventors: Tatsuo Wakabayashi, Yoshihiro Kanayama
  • Patent number: 8113254
    Abstract: A self-inflating tire assembly includes an annular air tube connected to a tire and defining an annular air passageway, the air tube being composed of a flexible material operative to allow an air tube segment opposite a tire footprint to flatten, closing the passageway, and resiliently unflatten into an original configuration. The air tube is sequentially flattened by the tire footprint in a direction opposite to a tire direction of rotation to pump air along the passageway to an inlet device for exhaust from the passageway or to an outlet device for direction into the tire cavity. The inlet device is positioned within the annular passageway 180 degrees opposite the outlet device such that sequential flattening of the air tube by the tire footprint effects pumping of air along the air passageway with the tire rotating in either a forward or reverse direction of rotation.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: February 14, 2012
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Robert Leon Benedict
  • Patent number: 8052400
    Abstract: An air supply apparatus (A) includes an air pump capable of supplying compressed air to an air chamber (a tire air chamber (Ra) of a wheel (B)) on the basis of rotation of the wheel (B); a change valve provided outside a pump chamber (Ro) of the air pump and adapted to restrict the supply of compressed air from the pump chamber (Ro) to the air chamber when the pressure of compressed air supplied from the pump chamber (Ro) to the air chamber reaches a first set value; and an adjustor capable of adjusting the first set value.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: November 8, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroshi Isono
  • Patent number: 8013724
    Abstract: A tire-pressure control apparatus includes time calculation means for calculating an up time over which the tire pressure of each wheel increases from a lower limit set value to an upper limit set value and a down time over which the tire pressure of the wheel decreases from the upper limit set value to the lower limit set value, on the basis of the detection value of a corresponding pressure sensor; average-rotational-speed calculation means for calculating an average rotational speed of the wheel during the up time on the basis of the detection value of a corresponding wheel speed sensor; first-pump-supplied-air-quantity calculation means (403) for calculating a first pump-supplied air quantity Qvw* of a corresponding air pressure generation unit in a single generation and non-generation cycle on the basis of the up time and the average rotational speed; second-pump-supplied-air-quantity calculation means (404) for calculating a second pump-supplied air quantity Qp* of the air pressure generation unit in a
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: September 6, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroshi Isono
  • Publication number: 20110203710
    Abstract: A dynamic tire-pressure control and monitoring method and system includes a pressure sensor, a control unit, and a built-in air compressor. The pressure sensor can be mounted on a wheel rim associated with a tire for detecting a tire pressure with respect to each wheel. The built-in compressor mounted on the wheel compresses air via an electronic valve from a reservoir to the tire when the tire pressure detected by the pressure sensor is below a predetermined value. The control unit regulates the sensed air pressure from the sensor and controls the operations of the compressor. The air pressure from the tire can also be released when a vehicle collision occurs in order to prevent explosion of the tire.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 25, 2011
    Inventors: Jesus Hinojosa, JR., Amado Crisolfo Coronado
  • Patent number: 7997317
    Abstract: A tire pump that is housed within the hub of a wheel is described. The pump includes a piston that moves axially with respect to the wheel's axle. The pump also includes a pressure switch configured to stop the pump when sufficient tire pressure is reached.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: August 16, 2011
    Inventor: Kevin Manning
  • Patent number: 7926530
    Abstract: A tire-air-pressure-generating apparatus includes an air pump, a pressure control valve, and an adjustment device, which are disposed coaxially in a shaft portion of an axle hub. The air pump includes a pump chamber located in the interior of the axle hub. The pressure control valve and the adjustment device are assembled into a cylinder head, which is assembled airtightly and removably to the axle hub. The cylinder head includes a suction-discharge path, discharge paths, pressure lead paths, and a suction path.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: April 19, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroshi Isono
  • Publication number: 20100288411
    Abstract: A device for maintaining a desired inflation pressure within a tire mounted on a wheel of a vehicle which includes a flexible compression chamber and a magnetic element not on the wheel. As the compressor passes the magnet each wheel revolution, a small amount of atmospheric air is pumped into the tire, if needed. The magnet and the compressor need no other contact with the vehicle or the wheel and require no energy source on the wheel.
    Type: Application
    Filed: July 23, 2010
    Publication date: November 18, 2010
    Inventor: Richard Loewe
  • Publication number: 20100282388
    Abstract: The present invention provides an automatic tire pressurizing and regulating system. The system maintains a predetermined pressure in a pneumatic tire during rotation of the tire. The system comprises a fill valve, one or more pumping devices, and a belt that provides fluid pathways that allow fluid (e.g., air) to flow between the outside atmosphere, the pumping device(s), and the tire as needed to maintain the predetermined pressure.
    Type: Application
    Filed: May 6, 2010
    Publication date: November 11, 2010
    Inventor: Steven Jerome Kelly
  • Publication number: 20100243121
    Abstract: A device for automatically maintaining tire pressure is adapted to pump air into a tire up to two times per wheel revolution. Embodiments of the device include a flexible compression strip adapted for attachment to an inner peripheral surface of a tire. Opposing compression faces on the compression strip apply pressure to a compression tube attached to the compression strip. Air in an air reservoir inside the compression tube is expelled from a collapsible segment of the compression tube pressed on by the compression faces and into accumulator segments extending beyond the edges of the compression strip. A ratio of the combined volumes of the collapsible and accumulator segments to the volume of the collapsible segment determines a set point pressure. Air is expelled into a tire having an inflation pressure less than the set point pressure but is not expelled into a tire having pressure greater than the set point pressure.
    Type: Application
    Filed: March 24, 2009
    Publication date: September 30, 2010
    Inventor: Brett Eigenbrode