Patents by Inventor Aaron Stern
Aaron Stern 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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Publication number: 20240092403Abstract: A knuckle pin, coupling system, and method for producing a knuckle pin are provided, the knuckle pin having a cylindrical body with a longitudinal slot therein separating vertical edges of the cylindrical body, with one or more first retaining elements that span outward of the cylindrical body, and a second retainer that includes one or more of opposing apertures, and bendable legs. A method for producing the knuckle pin is provided, where a blank is stamped into a workpiece that corresponds to the pin to be produced, and the stamped workpiece is rolled to produce the pin with the slot.Type: ApplicationFiled: March 20, 2023Publication date: March 21, 2024Applicant: Pennsy CorporationInventors: Zachary Ryan Brook, Manuel Tavares, Aaron Stern, Wayne H. Murphy
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Patent number: 11608095Abstract: A knuckle pin, coupling system, and method for producing a knuckle pin are provided, the knuckle pin having a cylindrical body with a longitudinal slot therein separating vertical edges of the cylindrical body, with one or more first retaining elements that span outward of the cylindrical body, and a second retainer that includes one or more of opposing apertures, and bendable legs. A method for producing the knuckle pin is provided, where a blank is stamped into a workpiece that corresponds to the pin to be produced, and the stamped workpiece is rolled to produce the pin with the slot.Type: GrantFiled: January 28, 2020Date of Patent: March 21, 2023Assignee: Pennsy CorporationInventors: Zachary Ryan Brook, Manuel Tavares, Aaron Stern, Wayne H. Murphy
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Patent number: 11433927Abstract: The sideframe and bolster of a railway car truck are constructed such that basic overall sideframe and bolster appearance is maintained, but the actual material it is constructed of is changed. The material used is changed from cast steel to an austempered metal, such as, cast austempered ductile iron; whereas cast iron has a density, 0.26 lbs/in{circumflex over (?)}3, which is approximately 8% less than steel, 0.283 lbs/in{circumflex over (?)}3. This immediately allows for a reduction in weight. A second benefit is that iron is easier to pour than steel and actually increases in volume, slightly, as metal cools compared to steel which shrinks. Efficient use of materials is improved, meaning less metal is used to make the same final shape, as a way of reducing the sideframe and bolster weight. Both factures combined allow for a lighter weight railway car truck, sideframe and bolster, while utilizing standard designs.Type: GrantFiled: April 8, 2019Date of Patent: September 6, 2022Assignee: Pennsy CorporationInventors: Manuel Tavares, Aaron Stern, Michael J. Schmidt
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Patent number: 11345372Abstract: Lightweight yokes are provided. According to some embodiments, the basic overall appearance of the yoke may be maintained, but the actual material of which it is constructed is changed. According to other embodiments, the yoke is provided with an improved lightweight construction, and, yet other embodiments the yoke may be provided with an improved construction and formed from a preferred material. Yokes may be constructed from cast austempered ductile iron; whereas cast iron has a density, 0.26 lbs/in{circumflex over (?)}3, which is approximately 8% less than steel, 0.283 lbs/in{circumflex over (?)}3, thereby allowing for a reduction in weight over steel. A suitable austempering process is used to produce the austempered metal yoke. Yokes have improved configurations which may require less metal to produce the yoke. Both, the lightweight material and improvements in configuration of the yoke structure may combine to provide a lighter weight yoke.Type: GrantFiled: April 9, 2019Date of Patent: May 31, 2022Assignee: Pennsy CorporationInventors: Aaron Stern, Zachary Ryan Brook, Manuel Tavares, Wayne H. Murphy, Perry Levitt, Michael J. Schmidt
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Patent number: 11345374Abstract: The coupler system of a railway car truck is constructed such that basic overall appearance may be maintained, but the actual material of which it is constructed is changed. According to one embodiment, the coupler is constructed from cast austempered ductile iron; whereas cast iron has a density, 0.26 lbs/in{circumflex over (?)}3, which is approximately 8% less than steel, 0.283 lbs/in{circumflex over (?)}3, thereby allowing for a reduction in weight over steel. A suitable austempering process is used to produce the austempered metal coupler and components thereof. A second benefit of embodiments of the present invention provides for a more efficient use of materials, meaning less metal is used to make the same final shape, as a way of reducing the coupler weight. Both factures combined allow for a lighter weight coupler, while utilizing the standard designs. Alternate coupler configurations are disclosed for further reducing coupler weight.Type: GrantFiled: April 8, 2019Date of Patent: May 31, 2022Assignee: Pennsy CorporationInventors: Aaron Stern, Manuel Tavares, Zachary Ryan Brook, Michael J. Schmidt
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Patent number: 10994754Abstract: A coupler having a support provided through the body of the coupler and a plurality of openings in the coupler which are configured as open cavities. The coupler structure includes a shank that has a vertical support as well as lateral support. The coupler may be configured with a double I-beam structure with openings into the shank. Cores that may be fixed to the mold may be used to form the coupler and produce the openings in the shank.Type: GrantFiled: December 10, 2018Date of Patent: May 4, 2021Assignee: Pennsy CorporationInventors: Aaron Stern, Perry Levitt, Manuel Tavares, Zachary Ryan Brook, Wayne H. Murphy
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Patent number: 10906568Abstract: An improved method of production of a coupler knuckle, a core assembly for production of a coupler knuckle, and coupler knuckle having an improved interior configuration for handling forces imparted on the knuckle and transferring said imparted forces through the knuckle and improving handling of linear force loads and their transmission. The knuckle interior has a force handling structure that includes spaced apart layers and cavities, with a cavity extending between the nose section and the tail section thereof.Type: GrantFiled: June 17, 2019Date of Patent: February 2, 2021Assignee: Pennsy CorporationInventors: Aaron Stern, Zachary Brook, Perry Levitt, Manuel Tavares, Wayne Murphy
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Publication number: 20200239046Abstract: A knuckle pin, coupling system, and method for producing a knuckle pin are provided, the knuckle pin having a cylindrical body with a longitudinal slot therein separating vertical edges of the cylindrical body, with one or more first retaining elements that span outward of the cylindrical body, and a second retainer that includes one or more of opposing apertures, and bendable legs. A method for producing the knuckle pin is provided, where a blank is stamped into a workpiece that corresponds to the pin to be produced, and the stamped workpiece is rolled to produce the pin with the slot.Type: ApplicationFiled: January 28, 2020Publication date: July 30, 2020Applicant: Pennsy CorporationInventors: Zachary Ryan Brook, Manuel Tavares, Aaron Stern, Wayne H. Murphy
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Publication number: 20190359231Abstract: An improved method of production of a coupler knuckle, a core assembly for production of a coupler knuckle, and coupler knuckle having an improved interior configuration for handling forces imparted on the knuckle and transferring said imparted forces through the knuckle and improving handling of linear force loads and their transmission. The knuckle interior has a force handling structure that includes spaced apart layers and cavities, with a cavity extending between the nose section and the tail section thereof.Type: ApplicationFiled: June 17, 2019Publication date: November 28, 2019Applicant: Pennsy CorporationInventors: Aaron Stern, Zachary Brook, Perry Levitt, Manuel Tavares, Wayne Murphy
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Publication number: 20190248387Abstract: A coupler having a support provided through the body of the coupler and a plurality of openings in the coupler which are configured as open cavities. The coupler structure includes a shank that has a vertical support as well as lateral support. The coupler may be configured with a double I-beam structure with openings into the shank. Cores that may be fixed to the mold may be used to form the coupler and produce the openings in the shank.Type: ApplicationFiled: December 10, 2018Publication date: August 15, 2019Applicant: Pennsy CorporationInventors: Aaron Stern, Perry Levitt, Manuel Tavares, Zachary Ryan Brook, Wayne H. Murphy
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Patent number: 10322732Abstract: An improved method of production of a coupler knuckle, a core assembly for production of a coupler knuckle, and coupler knuckle having an improved interior configuration for handling forces imparted on the knuckle and transferring said imparted forces through the knuckle and improving handling of linear force loads and their transmission. The knuckle interior has a force handling structure that includes spaced apart layers and cavities, with a cavity extending between the nose section and the tail section thereof.Type: GrantFiled: November 11, 2015Date of Patent: June 18, 2019Assignee: Pennsy CorporationInventors: Aaron Stern, Zachary Brook, Perry Levitt, Manuel Tavares, Wayne Murphy
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Patent number: 10252733Abstract: The sideframe and bolster of a railway car truck are constructed such that basic overall sideframe and bolster appearance is maintained, but the actual material it is constructed of is changed. The material used is changed from cast steel to an austempered metal, such as, cast austempered ductile iron; whereas cast iron has a density, 0.26 lbs/in^3, which is approximately 8% less than steel, 0.283 lbs/in^3. This immediately allows for a reduction in weight. A second benefit is that iron is easier to pour than steel and actually increases in volume, slightly, as metal cools compared to steel which shrinks. Efficient use of materials is improved, meaning less metal is used to make the same final shape, as a way of reducing the sideframe and bolster weight. Both factures combined allow for a lighter weight railway car truck, sideframe and bolster, while utilizing standard designs.Type: GrantFiled: November 2, 2015Date of Patent: April 9, 2019Assignee: Pennsy CorporationInventors: Manuel Tavares, Aaron Stern, Michael J. Schmidt
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Patent number: 10150490Abstract: A coupler having a support provided through the body of the coupler and a plurality of openings in the coupler which are configured as open cavities. The coupler structure includes a shank that has a vertical support as well as lateral support. The coupler may be configured with a double I-beam structure with openings into the shank. Cores that may be fixed to the mold may be used to form the coupler and produce the openings in the shank.Type: GrantFiled: May 22, 2015Date of Patent: December 11, 2018Assignee: Pennsy CorporationInventors: Aaron Stern, Perry Levitt, Manuel Tavares, Zachary Ryan Brook, Wayne H. Murphy
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Patent number: 9714039Abstract: A knuckle thrower for a railway coupler assembly, the thrower having a knuckle actuating leg, a leg lock seat, an upper pivot structure, a lower trunnion, and stress relief feature for relieving stresses imparted on the thrower, which, according to some embodiments may include a recess provided in the perimeter wall thereof, and one or more supporting ribs.Type: GrantFiled: May 8, 2014Date of Patent: July 25, 2017Assignee: Pennsy CorporationInventors: Perry Levitt, Aaron Stern, Manuel Tavares, Zachary Ryan Brook, Wayne H. Murphy
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Patent number: 9604276Abstract: A process for producing a coupler and an improved coupler are provided. The process produces a coupler by constructing a mold that is a replica of the coupler and is constructed from a plurality of mold components that are selected and assembled to form a mold having the shape of the coupler. The mold components may include a front mold component section that forms the head of the coupler, a rear mold component section that forms the shank of the coupler, and, optionally one or more shelf components forming a shelf of the coupler. The front, rear and shank mold components may themselves be made from a plurality of mold components that are assembled together. The mold is formed from a consumable material, coating with a heat resistant material so that the assembled mold components are within a mold volume, and molten metal is added to the mold volume.Type: GrantFiled: May 8, 2014Date of Patent: March 28, 2017Assignee: PENNSY CORPORATIONInventors: Aaron Stern, Perry Levitt, Manuel Tavares, Zachary Ryan Brook, Wayne H. Murphy
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Patent number: 9580089Abstract: Lightweight yokes are provided. According to some embodiments, the basic overall appearance of the yoke may be maintained, but the actual material of which it is constructed is changed. According to other embodiments, the yoke is provided with an improved lightweight construction, and, yet other embodiments the yoke may be provided with an improved construction and formed from a preferred material. Yokes may be constructed from cast austempered ductile iron; whereas cast iron has a density, 0.26 lbs/in^3, which is approximately 8% less than steel, 0.283 lbs/in^3, thereby allowing for a reduction in weight over steel. A suitable austempering process is used to produce the austempered metal yoke. Yokes have improved configurations which may require less metal to produce the yoke. Both, the lightweight material and improvements in configuration of the yoke structure may combine to provide a lighter weight yoke.Type: GrantFiled: July 11, 2014Date of Patent: February 28, 2017Assignee: PENNSY CORPORATIONInventors: Perry Levitt, Zachary Ryan Brook, Manuel Tavares, Wayne H. Murphy, Aaron Stern, Michael J. Schmidt
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Publication number: 20160339930Abstract: A coupler having a support provided through the body of the coupler and a plurality of openings in the coupler which are configured as open cavities. The coupler structure includes a shank that has a vertical support as well as lateral support. The coupler may be configured with a double I-beam structure with openings into the shank. Cores that may be fixed to the mold may be used to form the coupler and produce the openings in the shank.Type: ApplicationFiled: May 22, 2015Publication date: November 24, 2016Applicant: PENNSY CORPORATIONInventors: Aaron Stern, Perry Levitt, Manuel Tavares, Zachary Ryan Brook, Wayne H. Murphy
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Patent number: 9481381Abstract: E-type and F-type yokes improve the ability of the yokes to be constructed having lighter weight yet function to handle loads from car coupling assembly components, such as, for example, a coupler mounted on the yoke. The E-type and F-type yokes have straps and openings provided in the straps, and are constructed from austempered ductile iron. Embodiments may be constructed with a tail or butt portion that includes sloped walls that form cavities in the butt portion of the yoke, where a supporting structure spans between the yoke rear wall and the draft gear seat wall.Type: GrantFiled: May 8, 2014Date of Patent: November 1, 2016Assignee: PENNSY CORPORATIONInventors: Perry Levitt, Zachary Ryan Brook, Manuel Tavares, Wayne H. Murphy, Aaron Stern
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Patent number: 9452764Abstract: A railcar coupler having a head portion extending from a shank portion, the coupler head portion is configured to couple to a first coupler knuckle for coupling the railcar coupler to a second railcar coupler of an adjacent railcar. The coupler has weight reduction features that also are configured to provide strength to the coupler when handling forceloads. The coupler may have a head with a front face with bores provided in the front face a cavity extending through the coupler, a guard arm with cavities formed therein, and a shank having a plurality of longitudinal cavities and adjacent ribs separating the cavities. Preferred embodiments may be constructed from an austempered metal.Type: GrantFiled: May 8, 2014Date of Patent: September 27, 2016Assignee: PENNSY CORPORATIONInventors: Aaron Stern, Perry Levitt, Manuel Tavares, Zachary Ryan Brook, Wayne H. Murphy
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Publication number: 20150321679Abstract: A process for producing a coupler and an improved coupler are provided. The process produces a coupler by constructing a mold that is a replica of the coupler and is constructed from a plurality of mold components that are selected and assembled to form a mold having the shape of the coupler. The mold components may include a front mold component section that forms the head of the coupler, a rear mold component section that forms the shank of the coupler, and, optionally one or more shelf components forming a shelf of the coupler. The front, rear and shank mold components may themselves be made from a plurality of mold components that are assembled together. The mold is formed from a consumable material, coating with a heat resistant material so that the assembled mold components are within a mold volume, and molten metal is added to the mold volume.Type: ApplicationFiled: May 8, 2014Publication date: November 12, 2015Applicant: Pennsy CorporationInventors: Aaron Stern, Perry Levitt, Manuel Tavares, Zachary Ryan Brook, Wayne H. Murphy