Patents by Inventor John A. London
John A. London 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: 9500106Abstract: A valve stem seal utilizes a multi-piece construction to reduce the required manufactured tolerances and/or improve the stress handling capabilities. The valve stem seal can include a first member or can which can be assembled to a second member or spring seat. The can and/or spring seat can have a plurality of axially extending resilient fingers that are biased such that when assembled the fingers are bent against the bias due to the engagement between the can and the spring seat. The fingers on the spring seat allow the spring seat to bend or move relative to the can to accommodate the loading of a valve spring on the spring seat. The use of resilient fingers on the can and/or the spring seat reduces the manufacturing tolerances required for the valve stem seal.Type: GrantFiled: May 20, 2009Date of Patent: November 22, 2016Assignee: Freudenberg—NOK General PartnershipInventors: Rory S. Pawl, Patrick L. Scheib, John A. London
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Patent number: 9416690Abstract: A valve stem seal including a radially outwardly extending flange that includes one or more circumferential grooves to allow the flange to flex and lay flat against a support surface and protect the flange from fatigue.Type: GrantFiled: July 30, 2009Date of Patent: August 16, 2016Assignee: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: John A. London, Patrick L. Scheib
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Patent number: 9286596Abstract: A system and method for conducting an electronic signing ceremony is provided. The electronic signing ceremony may include a number of defined steps performed by one or more people on a number of documents in a predetermined order. An activity, such as providing a digital signature, may be associated with each document and/or page of each document. The electronic signing ceremony system and method consolidates and streamlines the process of originating, organizing, signing, verifying, storing, and retrieving multiple documents requiring multiple signatures from one or more people virtually anywhere and at any time.Type: GrantFiled: March 31, 2009Date of Patent: March 15, 2016Assignee: Topaz Systems, Inc.Inventors: Nikos Leoutsarakos, Oliver Lan, John London, Nathalie Benoit, Tomlinson G. Rauscher, Paul Chronopoulos
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Patent number: 8918972Abstract: A shaft-sealing device comprising a sealing ring having a seal secured thereto, and a protective member engaged with the sealing ring. The said protective member includes a cylindrical member having a shaft-engaging surface and a seal-engaging surface, and an annular flange extends radially away from the shaft. The shaft-engaging surface is operable to be attached to the shaft during operation of the device, and the seal-engaging surface is operable to be in sealing contact with the seal during operation of the device. The annular flange is operable to engage the sealing ring.Type: GrantFiled: November 12, 2012Date of Patent: December 30, 2014Assignee: Freudenberg-NOK General PartnershipInventors: Darin Battles, John A. London
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Patent number: 8601991Abstract: A valve stem seal assembly in an internal combustion engine includes a cylinder head including an aperture therein in communication with a cylinder bore and a recessed pocket surrounding the aperture. A valve guide is received in the aperture and a valve stem is received in the valve guide. A valve seal support includes a radially outwardly extending flange disposed against a surface of the cylinder head external to the recessed pocket and a cylindrical body that extends into the recessed pocket. A valve spring contacts the flange and a resilient seal is secured to the rigid valve seal support and in sealing engagement with the valve stem.Type: GrantFiled: August 2, 2011Date of Patent: December 10, 2013Assignee: Freudenberg-NOK General PartnershipInventors: Rory S. Pawl, Patrick L. Scheib, John A. London
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Patent number: 8454025Abstract: A dynamic seal advantageously utilizes a plurality of grooves on the active side or surface of the seal to capture a leaked lubricant and hydrodynamically pump the lubricant back into the lubricated side of the seal. The grooves are interrupted at an intermediate location by a continuous circumferential band that aids in preventing leakage past the band when the shaft is not rotating and the grooves on both sides of the band pump contaminants away from the sealing lip.Type: GrantFiled: February 24, 2010Date of Patent: June 4, 2013Assignee: Freudenberg-NOK General PartnershipInventors: Sean Donovan, John A. London, Robert Scavuzzo
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Patent number: 8376369Abstract: A dynamic seal utilizes a groove on the active side of the seal to capture a leaked lubricant and pump the lubricant back into the lubricated side of the seal. The groove stops short of the leading edge of the seal that faces the lubricant side forming a static dam between the termination point of the groove and the seal edge. When the fluid pressure within the groove exceeds the opening pressure for the seal lip, the lubricant within the groove is pumped back into the lubricant side of the seal. The groove can have an induction zone wherein the fluid pressure rise is gradual and a booster zone wherein the fluid pressure rise is relatively faster than in the induction zone. The booster zone is disposed adjacent the static dam. Bars are provided across the spiral grooves to prevent contaminants from reaching and becoming trapped in the booster zone.Type: GrantFiled: February 24, 2010Date of Patent: February 19, 2013Assignee: Freudenberg-NOK General PartnershipInventors: John A. London, Robert Scavuzzo, Alexander Berdichevsky
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Publication number: 20130032118Abstract: A valve stem seal assembly in an internal combustion engine includes a cylinder head including an aperture therein in communication with a cylinder bore and a recessed pocket surrounding the aperture. A valve guide is received in the aperture and a valve stem is received in the valve guide. A valve seal support includes a radially outwardly extending flange disposed against a surface of the cylinder head external to the recessed pocket and a cylindrical body that extends into the recessed pocket. A valve spring contacts the flange and a resilient seal is secured to the rigid valve seal support and in sealing engagement with the valve stem.Type: ApplicationFiled: August 2, 2011Publication date: February 7, 2013Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: Rory S. Pawl, Patrick L. Scheib, John A. London
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Patent number: 8328200Abstract: A shaft-sealing device comprising a sealing ring having a seal secured thereto, and a protective member engaged with the sealing ring. The said protective member includes a cylindrical member having a shaft-engaging surface and a seal-engaging surface, and an annular flange extends radially away from the shaft. The shaft-engaging surface is operable to be attached to the shaft during operation of the device, and the seal-engaging surface is operable to be in sealing contact with the seal during operation of the device. The annular flange is operable to engage the sealing ring.Type: GrantFiled: April 22, 2010Date of Patent: December 11, 2012Assignee: Freudenberg-NOK General PartnershipInventors: Darin Battles, John A. London
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Patent number: 8112887Abstract: A seal shipping system includes a seal having an outer diameter surface and an inner sealing lip. A sleeve member having a cylindrical body and a radially extending flange extending from the cylindrical body engages the inner sealing lip. An annular collar surrounds the radially extending flange of the sleeve member and frictionally engages the outer diameter surface of the seal.Type: GrantFiled: February 1, 2011Date of Patent: February 14, 2012Assignee: Freudenberg-NOK General PartnershipInventors: John A. London, Patrick Scheib, Peter C. Whitaker, Damian J. Feltner
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Publication number: 20110260409Abstract: A shaft-sealing device comprising a sealing ring having a seal secured thereto, and a protective member engaged with the sealing ring. The said protective member includes a cylindrical member having a shaft-engaging surface and a seal-engaging surface, and an annular flange extends radially away from the shaft. The shaft-engaging surface is operable to be attached to the shaft during operation of the device, and the seal-engaging surface is operable to be in sealing contact with the seal during operation of the device. The annular flange is operable to engage the sealing ring.Type: ApplicationFiled: April 22, 2010Publication date: October 27, 2011Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: Darin Battles, John A. London
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Patent number: 8028852Abstract: A seal shipping system includes a seal having an outer diameter surface and an inner sealing lip. A sleeve member having a cylindrical body and a radially extending flange extending from the cylindrical body engages the inner sealing lip. An annular collar surrounds the radially extending flange of the sleeve member and frictionally engages the outer diameter surface of the seal.Type: GrantFiled: May 30, 2008Date of Patent: October 4, 2011Assignee: Freudenberg-NOK General PartnershipInventors: John A. London, Patrick Scheib, Peter C. Whitaker, Damian J. Feltner
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Publication number: 20110204579Abstract: A dynamic seal advantageously utilizes a plurality of grooves on the active side or surface of the seal to capture a leaked lubricant and hydrodynamically pump the lubricant back into the lubricated side of the seal. The grooves are interrupted at an intermediate location by a continuous circumferential band that aids in preventing leakage past the band when the shaft is not rotating and the grooves on both sides of the band pump contaminants away from the sealing lip.Type: ApplicationFiled: February 24, 2010Publication date: August 25, 2011Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: Sean Donovan, John A. London, Robert Scavuzzo
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Publication number: 20110119895Abstract: A seal shipping system includes a seal having an outer diameter surface and an inner sealing lip. A sleeve member having a cylindrical body and a radially extending flange extending from the cylindrical body engages the inner sealing lip. An annular collar surrounds the radially extending flange of the sleeve member and frictionally engages the outer diameter surface of the seal.Type: ApplicationFiled: February 1, 2011Publication date: May 26, 2011Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: John A. London, Patrick Scheib, Peter C. Whitaker, Damian J. Feltner
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Publication number: 20110024666Abstract: A valve stem seal including a radially outwardly extending flange that includes one or more circumferential grooves to allow the flange to flex and lay flat against a support surface and protect the flange from fatigue.Type: ApplicationFiled: July 30, 2009Publication date: February 3, 2011Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: John A. London, Patrick L. Scheib
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Publication number: 20100295252Abstract: A valve stem seal utilizes a multi-piece construction to reduce the required manufactured tolerances and/or improve the stress handling capabilities. The valve stem seal can include a first member or can which can be assembled to a second member or spring seat. The can and/or spring seat can have a plurality of axially extending resilient fingers that are biased such that when assembled the fingers are bent against the bias due to the engagement between the can and the spring seat. The fingers on the spring seat allow the spring seat to bend or move relative to the can to accommodate the loading of a valve spring on the spring seat. The use of resilient fingers on the can and/or the spring seat reduces the manufacturing tolerances required for the valve stem seal.Type: ApplicationFiled: May 20, 2009Publication date: November 25, 2010Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: Rory S. Pawl, Patrick L. Scheib, John A. London
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Publication number: 20100219588Abstract: A dynamic seal utilizes a groove on the active side of the seal to capture a leaked lubricant and pump the lubricant back into the lubricated side of the seal. The groove stops short of the leading edge of the seal that faces the lubricant side forming a static dam between the termination point of the groove and the seal edge. When the fluid pressure within the groove exceeds the opening pressure for the seal lip, the lubricant within the groove is pumped back into the lubricant side of the seal. The groove can have an induction zone wherein the fluid pressure rise is gradual and a booster zone wherein the fluid pressure rise is relatively faster than in the induction zone. The booster zone is disposed adjacent the static dam. Bars are provided across the spiral grooves to prevent contaminants from reaching and becoming trapped in the booster zone.Type: ApplicationFiled: February 24, 2010Publication date: September 2, 2010Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: John A. London, Robert Scavuzzo, Alexander Berdichevsky
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Publication number: 20100140388Abstract: An aircraft air cushion landing system (2) includes a skirt (6) defining a plenum (22) on an underside of the aircraft, a plenum fan (26) arranged to induce an airflow into the plenum (22) and controller configured to control operation of the plenum fan (26). The controller includes a sensor (30) adapted to sense an imminent landing event and a fan control system (28) configured to automatically operate the plenum fan (26) to provide a first flow in a first direction out of the plenum (22) so that as the skirt (6) engages a landing surface air is being evacuated from the plenum (22). A method also operates such a system (2).Type: ApplicationFiled: September 22, 2009Publication date: June 10, 2010Applicant: Air Cushion Landing Systems LimitedInventors: Russell John London, Malcolm John COX
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Publication number: 20090295147Abstract: A seal shipping system includes a seal having an outer diameter surface and an inner sealing lip. A sleeve member having a cylindrical body and a radially extending flange extending from the cylindrical body engages the inner sealing lip. An annular collar surrounds the radially extending flange of the sleeve member and frictionally engages the outer diameter surface of the seal.Type: ApplicationFiled: May 30, 2008Publication date: December 3, 2009Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIPInventors: John A. London, Patrick Scheib, Peter C. Whitaker, Damian J. Feltner
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Publication number: 20090249191Abstract: A system and method for conducting an electronic signing ceremony is provided. The electronic signing ceremony may include a number of defined steps performed by one or more people on a number of documents in a predetermined order. An activity, such as providing a digital signature, may be associated with each document and/or page of each document. The electronic signing ceremony system and method consolidates and streamlines the process of originating, organizing, signing, verifying, storing, and retrieving multiple documents requiring multiple signatures from one or more people virtually anywhere and at any time.Type: ApplicationFiled: March 31, 2009Publication date: October 1, 2009Applicant: INTERLINK ELECTRONICS, INC.Inventors: Nikos Leoutsarakos, Oliver Lan, John London, Nathalie Benoit, Tomlinson G. Rauscher, Paul Chronopoulos