Patents by Inventor Timothy P. Walgren
Timothy P. Walgren 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: 10472038Abstract: An outboard motor is for propelling a marine vessel in water and can be trimmed about a trim axis into and between a raised position in which the outboard motor is fully trimmed up out of the water and a lowered position in which the outboard motor is fully trimmed down into the water. The outboard motor has a hydraulic steering actuator for steering the outboard motor about steering axis and a reservoir mounted on the outboard motor and containing hydraulic fluid for the hydraulic steering actuator. A vent opening vents the reservoir to atmosphere and is located on top of the reservoir and closer to the back of the outboard motor than the front of the outboard motor so that the vent opening does not become covered by the hydraulic fluid when the outboard motor is trimmed into and out of the raised and lowered positions.Type: GrantFiled: December 18, 2018Date of Patent: November 12, 2019Assignee: Brunswick CorporationInventors: Timothy P. Walgren, Tyler J. Nackers, Kerry J. Treinen
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Patent number: 10422476Abstract: A method of deaerating a mixture of fluid and air according to an example of the present disclosure includes the steps of communicating a mixture of a fluid and air into an open area of a reservoir directly against a wall of the reservoir to separate at least some of the fluid from at least some of the air. The reservoir is disposed about an axis of a rotatable shaft, and the reservoir has a curved radially outer wall and a curved radially inner wall joined by curved end walls that face circumferentially relative to the axis. The mixture is communicated against a first one of the curved end walls. The fluid is held within the reservoir after the separating.Type: GrantFiled: March 15, 2018Date of Patent: September 24, 2019Assignee: Hamilton Sundstrand CorporationInventors: Dean A. Norem, Timothy P. Walgren
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Patent number: 10125859Abstract: A gearbox system includes a gearbox having integrated therein a pump system, a plurality of fluid passages and a clutch control system. The pump system is in fluid communication with the clutch control system via the fluid passages to flow at least one pressurized stream. A first pressurized stream controls a first pressure-responsive device included in the clutch control system. The gearbox system further includes a hydro-mechanical control unit (HMCU) in fluid communication with the gearbox to receive a second pressurized stream and to generate at least one actuator control stream. The actuator control stream controls an actuator integrated in the gearbox.Type: GrantFiled: November 25, 2015Date of Patent: November 13, 2018Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Timothy P. Walgren, Dean A. Norem, Charles L. DeGeorge, Alex Rak, Raymond N. Weyl, Ricky D. Reimers
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Publication number: 20180202605Abstract: A method of deaerating a mixture of fluid and air according to an example of the present disclosure includes the steps of communicating a mixture of a fluid and air into an open area of a reservoir directly against a wall of the reservoir to separate at least some of the fluid from at least some of the air. The reservoir is disposed about an axis of a rotatable shaft, and the reservoir has a curved radially outer wall and a curved radially inner wall joined by curved end walls that face circumferentially relative to the axis. The mixture is communicated against a first one of the curved end walls. The fluid is held within the reservoir after the separating.Type: ApplicationFiled: March 15, 2018Publication date: July 19, 2018Inventors: Dean A. Norem, Timothy P. Walgren
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Patent number: 10024319Abstract: A method of lubricating a coupling shaft of a gear pump includes communicating lubricant from a first gear stage along a first splined end section of the coupling shaft and through a first slot in a first radial shoulder of the coupling shaft, and also communicating lubricant from a second gear stage along a second splined end section of the coupling shaft and through a second slot in a second radial shoulder of the coupling shaft. The first radial shoulder is axially spaced from the second radial shoulder by an axial distance SA along an axis of rotation of the coupling shaft. The first and second slots each define a lowermost radial dimension SR from the axis of rotation, with a ratio SR/SA of 0.25-0.77.Type: GrantFiled: December 9, 2016Date of Patent: July 17, 2018Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Satish Shantilal Shah, Timothy P. Walgren
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Patent number: 9920880Abstract: An example method of deaerating a mixture of fluid and air includes communicating a mixture of fluid and air directly against a wall of a reservoir to separate the fluid from the air. The method reuses the fluid held within the reservoir after the separating.Type: GrantFiled: January 16, 2012Date of Patent: March 20, 2018Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Dean A. Norem, Timothy P. Walgren
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Patent number: 9677559Abstract: A bearing includes a bridge land geometry having a finger cut that defines a width ISW, a center of the width ISW displaced from a shaft axis a radial distance ISR, a ratio of ISW/ISR between 0.074-0.293, to reduce cavitation and pressure ripple.Type: GrantFiled: February 25, 2011Date of Patent: June 13, 2017Assignee: Hamilton Sundstrand CorporationInventors: Weishun Ni, Satish Shantilal Shah, Timothy P. Walgren
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Publication number: 20170089338Abstract: A method of lubricating a coupling shaft of a gear pump includes communicating lubricant from a first gear stage along a first splined end section of the coupling shaft and through a first slot in a first radial shoulder of the coupling shaft, and also communicating lubricant from a second gear stage along a second splined end section of the coupling shaft and through a second slot in a second radial shoulder of the coupling shaft. The first radial shoulder is axially spaced from the second radial shoulder by an axial distance SA along an axis of rotation of the coupling shaft. The first and second slots each define a lowermost radial dimension SR from the axis of rotation, with a ratio SR/SA of 0.25-0.77.Type: ApplicationFiled: December 9, 2016Publication date: March 30, 2017Inventors: Satish Shantilal Shah, Timothy P. Walgren
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Patent number: 9546655Abstract: A shaft assembly includes a shaft with a first radial shoulder and a second radial shoulder. The first radial shoulder and the second radial shoulder each include at least one slot. An axial separation between the first radial shoulder and the second radial shoulder defines an axial distance SA along an axis of rotation. The at least one slot defines a lowermost radial dimension SR from the axis of rotation. A ratio of SR/SA is 0.25-0.77.Type: GrantFiled: August 11, 2014Date of Patent: January 17, 2017Assignee: Hamilton Sundstrand CorporationInventors: Satish Shantilal Shah, Timothy P. Walgren
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Publication number: 20160076637Abstract: A gearbox system includes a gearbox having integrated therein a pump system, a plurality of fluid passages and a clutch control system. The pump system is in fluid communication with the clutch control system via the fluid passages to flow at least one pressurized stream. A first pressurized stream controls a first pressure-responsive device included in the clutch control system. The gearbox system further includes a hydro-mechanical control unit (HMCU) in fluid communication with the gearbox to receive a second pressurized stream and to generate at least one actuator control stream. The actuator control stream controls an actuator integrated in the gearbox.Type: ApplicationFiled: November 25, 2015Publication date: March 17, 2016Inventors: Timothy P. Walgren, Dean A. Norem, Charles L. DeGeorge, Alex Rak, Raymond N. Weyl, Ricky D. Reimers
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Patent number: 9234576Abstract: A gearbox system includes a gearbox having integrated therein a pump system, a plurality of fluid passages and a clutch control system. The pump system is in fluid communication with the clutch control system via the fluid passages to flow at least one pressurized stream. A first pressurized stream controls a first pressure-responsive device included in the clutch control system. The gearbox system further includes a hydro-mechanical control unit (HMCU) in fluid communication with the gearbox to receive a second pressurized stream and to generate at least one actuator control stream. The actuator control stream controls an actuator integrated in the gearbox.Type: GrantFiled: December 11, 2012Date of Patent: January 12, 2016Assignee: Hamilton Sundstrand CorporationInventors: Timothy P. Walgren, Jr., Dean A. Norem, Charles L. DeGeorge, Alex Rak, Raymond N. Weyl, Ricky D. Reimers
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Patent number: 9163767Abstract: In one example embodiment, a fluid transfer coupling arrangement includes a hollow shaft that is arranged in a housing and rotatable about an axis. The hollow shaft is provided by a wall having radially spaced interior and exterior surfaces. A first passage extends through the wall and is configured to communicate fluid between the interior and exterior surfaces. A fluid coupling is located mid-shaft, sealed about the exterior surface, and aligns to the first passage. The fluid coupling provides a second passage that is in fluid communication with the first passage. The fluid coupling includes a locating feature configured to permit radial movement of the fluid coupling relative to the housing and allowing the fluid coupling to track subtle shaft movements.Type: GrantFiled: January 16, 2012Date of Patent: October 20, 2015Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Dean A. Norem, Timothy P. Walgren
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Patent number: 9038801Abstract: An assembly includes an output shaft, an input shaft with an internal reservoir, and a clutch. The clutch is adapted to selectively engage and couple the input shaft to the output shaft. The clutch has a pressure chamber that communicates with the reservoir of the input shaft. The reservoir has a sufficient volume to provide the pressure chamber with a fluid pressure adequate to maintain engagement of the clutch during an interruption of a fluid supply to the input shaft and clutch.Type: GrantFiled: June 15, 2012Date of Patent: May 26, 2015Assignee: Hamilton Sundstrand CorporationInventors: Dean A. Norem, Alex Rak, Timothy P. Walgren, Raymond N. Weyl, Ricky D. Reimers, Charles E. Long
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Patent number: 8992193Abstract: An input shaft assembly is movable along an axis to absorb external impact loads. A biasing member exerts an axial load in a direction counter to potential impact loads. A stop is provided to control the application of biasing loads to control application of such axial load.Type: GrantFiled: July 15, 2011Date of Patent: March 31, 2015Assignee: Hamilton Sundstrand CorporationInventors: Timothy P. Walgren, Steven A. Heitz
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Patent number: 8992192Abstract: A shaft assembly includes a gear with a gear bore having a splined bore section adjacent to an oil dam. A shaft includes a first splined end section and a second splined end section, the first splined end section engageable with the splined inner diameter, the shaft having a bore with a bore diameter greater than a diameter of the oil dam, a first set of radial apertures axially inboard of the first splined end section in communication with the shaft inner bore and a second set of radial apertures axially inboard of the second splined end section in communication with the shaft inner bore that altogether provide lubrication of the splined end sections.Type: GrantFiled: February 25, 2011Date of Patent: March 31, 2015Assignee: Hamilton Sundstrand CorporationInventors: Satish Shantilal Shah, Michael R. Blewett, Timothy P. Walgren, Michael Moorman
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Patent number: 8911222Abstract: A shaft assembly includes a shaft with a first radial shoulder and a second radial shoulder. A retainer plate is located at least partially between the first radial shoulder and the second radial shoulder to avoid damage when an impact load is applied to the shaft. A spring assembly biases the shaft out of contact with the retainer plate during operation.Type: GrantFiled: February 25, 2011Date of Patent: December 16, 2014Assignee: Hamilton Sundstrand CorporationInventors: Timothy P. Walgren, Satish Shantilal Shah, Steven A. Heitz
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Publication number: 20140348685Abstract: A shaft assembly includes a shaft with a first radial shoulder and a second radial shoulder. The first radial shoulder and the second radial shoulder each include at least one slot. An axial separation between the first radial shoulder and the second radial shoulder defines an axial distance SA along an axis of rotation. The at least one slot defines a lowermost radial dimension SR from the axis of rotation. A ratio of SR/SA is 0.25-0.77.Type: ApplicationFiled: August 11, 2014Publication date: November 27, 2014Inventors: Satish Shantilal Shah, Timothy P. Walgren
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Patent number: 8814547Abstract: A shaft assembly includes a shaft with a first radial shoulder and a second radial shoulder along a shaft axis. A seal retaining sleeve is defined around the shaft axis to position a shaft seal. A retainer plate at least partially between the first radial shoulder and the second radial shoulder is adjacent to the seal retaining sleeve to position and provide access to the seal retaining sleeve and shaft seal.Type: GrantFiled: February 25, 2011Date of Patent: August 26, 2014Assignee: Hamilton Sundstrand CorporationInventors: Timothy P. Walgren, Satish Shantilal Shah
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Patent number: 8801410Abstract: A coupling shaft assembly includes a coupling shaft with a first radial shoulder and a second radial shoulder, the first radial shoulder and the second radial shoulder each include at least one slot to provide a lubricant flow path.Type: GrantFiled: February 25, 2011Date of Patent: August 12, 2014Assignee: Hamilton Sundstrand CorporationInventors: Satish Shantilal Shah, Timothy P. Walgren
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Publication number: 20140157955Abstract: A gearbox system includes a gearbox having integrated therein a pump system, a plurality of fluid passages and a clutch control system. The pump system is in fluid communication with the clutch control system via the fluid passages to flow at least one pressurized stream. A first pressurized stream controls a first pressure-responsive device included in the clutch control system. The gearbox system further includes a hydro-mechanical control unit (HMCU) in fluid communication with the gearbox to receive a second pressurized stream and to generate at least one actuator control stream. The actuator control stream controls an actuator integrated in the gearbox.Type: ApplicationFiled: December 11, 2012Publication date: June 12, 2014Inventors: Timothy P. Walgren, JR., Dean A. Norem, Charles L. DeGeorge, Alex Rak, Raymond N. Weyl, Ricky D. Reimers