Patents by Inventor Stephen R. Sammataro
Stephen R. Sammataro 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: 10094514Abstract: A drain plug assembly includes a valve body, a removable closure, a poppet, and a resilient member. The valve body has a central bore extending between an inlet and an axially opposite outlet. The bore has a seat arranged between the inlet and outlet. The closure has an unseated and seated position, the closure cooperating with the seat to form an outer seal in the seated position. The poppet is arranged in the bore on a side of the seat opposite the outlet and has open and closed positions, the poppet cooperating with the seat to form an interior seal in the closed position. The resilient member is arranged between the valve body and the poppet for fluidly isolating the inlet from the outlet irrespective of the closure position. A snap ring and locking spline arrange are incorporated to prevent removal of the valve body during service.Type: GrantFiled: May 22, 2017Date of Patent: October 9, 2018Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Stephen R. Sammataro, Yuriy Dmytrenko
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Patent number: 9677663Abstract: A helicopter is provided and includes an engine, a rotor, a gear train configured to transmit torque from the engine to the rotor such that the rotor is rotatable about an axis of rotation, a primary lubrication system, which is configured to supply the gear train with a fluid and a secondary lubrication system disposed in a gear of the gear train, including a fluid reservoir, which is configured to receive and store the fluid and to continue to supply the gear train with the fluid following a failure of the primary lubrication system.Type: GrantFiled: June 28, 2013Date of Patent: June 13, 2017Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Stephen R. Sammataro, Ryan Patry
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Patent number: 9470303Abstract: A gearbox assembly includes a gearbox housing and a gear located in the housing and rotatable about a central axis. One or more gear shields are fixed in the housing and at least partially surround the gear. The one or more gear shields define a cavity between the gear and the one or more gear shields. The one or more gear shields are configured such that a pumping action is created by the gear rotation to direct gearbox lubricant out of the cavity. A method of scavenging lubricant from a gearbox includes pumping a flow of lubricant circumferentially around a cavity defined between a gear and a gear shield at least partially surrounding the gear via rotation of the gear about a central axis. The flow of lubricant is urged from the cavity into a lubricant outlet. The lubricant is urged through a lubricant channel in an axial direction.Type: GrantFiled: October 8, 2013Date of Patent: October 18, 2016Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Jason DeWitt McPeak, Stephen R. Sammataro, Scott Bradley Poteet, Michael John Orazietti, Jules Gene Kish
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Patent number: 9169971Abstract: A method and system for magnetically detecting thermal degradation of a component. A multiple of ferrous metal segments are attached to a component not within a lubrication circuit of a lubrication system with a thermally-affected bonding agent. The thermally-affected bonding agent is operable to detach at a threshold temperature at least one of the multiple of ferrous metal segments such that the at least one of the multiple of detached ferrous metal segments enters the lubrication circuit of the lubrication system. The at least one of the multiple of ferrous metal segments which detached are then detected within the lubrication system.Type: GrantFiled: May 6, 2010Date of Patent: October 27, 2015Assignee: Sikorsky Aircraft CorporationInventors: Stephen R. Sammataro, Michael F. Mullen
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Publication number: 20150260274Abstract: A helicopter is provided and includes an engine, a rotor, a gear train configured to transmit torque from the engine to the rotor such that the rotor is rotatable about an axis of rotation, a primary lubrication system, which is configured to supply the gear train with a fluid and a secondary lubrication system disposed in a gear of the gear train, including a fluid reservoir, which is configured to receive and store the fluid and to continue to supply the gear train with the fluid following a failure of the primary lubrication system.Type: ApplicationFiled: June 28, 2013Publication date: September 17, 2015Inventors: Stephen R. SAMMATARO, Ryan PATRY
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Publication number: 20150097073Abstract: A gearbox assembly includes a gearbox housing and a gear located in the housing and rotatable about a central axis. One or more gear shields are fixed in the housing and at least partially surround the gear. The one or more gear shields define a cavity between the gear and the one or more gear shields. The one or more gear shields are configured such that a pumping action is created by the gear rotation to direct gearbox lubricant out of the cavity. A method of scavenging lubricant from a gearbox includes pumping a flow of lubricant circumferentially around a cavity defined between a gear and a gear shield at least partially surrounding the gear via rotation of the gear about a central axis. The flow of lubricant is urged from the cavity into a lubricant outlet. The lubricant is urged through a lubricant channel in an axial direction.Type: ApplicationFiled: October 8, 2013Publication date: April 9, 2015Applicant: Sikorsky Aircraft CorporationInventors: Jason DeWitt McPeak, Stephen R. Sammataro, Scott Bradley Poteet, Michael John Orazietti, Jules Gene Kish
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Publication number: 20120067671Abstract: A method and system for magnetically detecting thermal degradation of a component. A multiple of ferrous metal segments are attached to a component not within a lubrication circuit of a lubrication system with a thermally-affected bonding agent. The thermally-affected bonding agent is operable to detach at a threshold temperature at least one of the multiple of ferrous metal segments such that the at least one of the multiple of detached ferrous metal segments enters the lubrication circuit of the lubrication system. The at least one of the multiple of ferrous metal segments which detached are then detected within the lubrication system.Type: ApplicationFiled: May 6, 2010Publication date: March 22, 2012Inventors: Stephen R. Sammataro, Michael F. Mullen
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Patent number: 6861836Abstract: A non-ferrous component comprising a thermally-affected adhesive applied to a surface of the component, and at least one ferrous metal wire attached to the surface of the component by the thermally-affected adhesive.Type: GrantFiled: September 23, 2002Date of Patent: March 1, 2005Assignee: Sikorsky Aircraft CorporationInventors: Stephen R. Sammataro, Michael F. Mullen
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Publication number: 20040056772Abstract: A non-ferrous component comprising a thermally-affected adhesive applied to a surface of the component, and at least one ferrous metal wire attached to the surface of the component by the thermally-affected adhesive.Type: ApplicationFiled: September 23, 2002Publication date: March 25, 2004Inventors: Stephen R. Sammataro, Michael F. Mullen
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Patent number: 5807202Abstract: A transmission for changing the rotational speed of an engine input shaft to a driven output shaft. The transmission includes a first and second face gears. Each face gear has first and second sets of teeth formed on it. Each set of teeth forms an annular pattern about a central axis. The second set of teeth on each face gear is located within and concentric with the first set of teeth. An input gear, adapted to be driven by the engine output shaft, is disposed between and engaged with the first sets of teeth on the first and second face gears such that rotation of the input gear produces rotation of the first and second face gears in opposite directions about the central axis. An output pinion is rotatably mounted to a pinion shaft. The output pinion is disposed between and engaged with the second sets of teeth on the first and second face gears such that rotation of the face gears produces corresponding rotation of the output pinion about the pinion shaft.Type: GrantFiled: September 4, 1996Date of Patent: September 15, 1998Assignee: Sikorsky Aircraft CorporationInventor: Stephen R. Sammataro
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Patent number: 5797185Abstract: An isolated ring gear (60) for a planetary gear drive system (12), which isolated ring gear (60) is operative transferring torque loads and reducing the transmission of high frequency vibrations from the planetary pinions (36) of the drive system (12) to an adjacent support (50). The isolated ring gear (60) includes and inner ring segment (62), an outer ring segment (64) and a plurality of spring elements (66) disposed between and integrally formed with the inner and outer ring segments (62, 64). The inner ring segment (62) has a plurality of gear teeth (62.sub.T) for being disposed in intermeshing combination with the teeth (3b.sub.T) of the planetary pinions (36) and the outer ring segment (64) is rigidly affixed to the adjacent support structure (50).Type: GrantFiled: May 12, 1997Date of Patent: August 25, 1998Assignee: Sikorsky Aircraft CorporationInventors: Stephen R. Sammataro, Jules G. Kish, Charles J. Isabelle
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Patent number: 5716300Abstract: An isolated ring gear (60) for a planetary gear drive system (12), which isolated ring gear (60) is operative transferring torque loads and reducing the transmission of high frequency vibrations from the planetary pinions (36) of the drive system (12) to an adjacent support (50). The isolated ring gear (60) includes and inner ring segment (62), an outer ring segment (64) and a plurality of spring elements (66) disposed between and integrally formed with the inner and outer ring segments (62, 64). The inner ring segment (62) has a plurality of gear teeth (62.sub.T) for being disposed in intermeshing combination with the teeth (32b.sub.T) of the planetary pinions (36) and the outer ring segment (64) is rigidly affixed to the adjacent support structure (50).Type: GrantFiled: May 1, 1996Date of Patent: February 10, 1998Assignee: Sikorsky Aircraft CorporationInventors: Stephen R. Sammataro, Jules G. Kish, Charles J. Isabelle
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Patent number: 5411116Abstract: A self-scavenging, hybrid lubrication subsystem for a main transmission gearbox includes a sump fabricated as an integral extension of the lower portion of the gearbox wherein the sump dynamic fluid level is above the gearbox bottom. The interior sidewall of the lower gearbox is modified to include a cylindrical segment having a first radius, a throat segment having a second radius, and a transition segment contiguous with the cylindrical and throat segments. The radial discontinuity between the cylindrical and throat segments defines a nozzle inlet that directs the outflow of lubricating medium in the gearbox bottom to the sump via a nozzle. The outflow end of the nozzle is positioned above the sump dynamic fluid level. Housed within the lower gearbox is a planetary gear train that includes an annular planetary carrier plate having a deflection plate mounted thereto. The periphery of the carrier plate and the cylindrical and throat segments in combination form primary and restricted flow channels.Type: GrantFiled: June 22, 1994Date of Patent: May 2, 1995Assignee: United Technologies CorporationInventors: Jules G. Kish, Stephen R. Sammataro, Charles J. Isabelle