Patents by Inventor James L. Cairns

James L. Cairns 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).

  • Patent number: 10456571
    Abstract: A penetrable interface configured to separate two or more spaces can include an elastomeric seal having a first segment and a second segment. A portion of the second segment can be integrally formed with a portion of the first segment. The first and second segments can create a sealing engagement therebetween in the absence of an applied force on the second segment. The first and second segments can be distorted out of sealing engagement when subjected to the applied force on the second segment.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: October 29, 2019
    Assignee: Stillwater Trust
    Inventor: James L. Cairns
  • Patent number: 10439318
    Abstract: An apparatus, combination and method of sealably enclosing junctions include an elastomeric seal that extends at least partially into a socket of a connector. The presently disclosed technology can be useful in sealably enclosing junctions of individual, jacketed-wire conductors to the terminals of underwater connectors. The presently disclosed technology can serve some or all of several purposes. A first of these purposes can be to sealably enclose a conductor-to-connector junction to prevent fluid ingress. A second purpose can be to electrically insulate a junction from its external environment, and a third purpose can be to provide strain relief for a jacketed-wire conductor at a junction.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: October 8, 2019
    Assignee: Pontus Subsea Connectors LLC
    Inventor: James L. Cairns
  • Publication number: 20190219770
    Abstract: A connector for sealably engaging and disengaging contacts therein can include a first unit and a second unit that is movable with respect to the first unit between an unmated position and a mated position. The first unit can have one or more closed chambers therein. Each closed chamber of the first unit contains fluid and one or more first contacts. The second unit can have one or more closed chambers therein, each closed chamber of the second unit containing fluid and one or more second contacts. Each second contact is configured to engage one of the first contacts. The one or more closed chambers of the first unit remain sealed from the one or more closed chambers of the second unit throughout mating and demating of the first and second units.
    Type: Application
    Filed: January 16, 2019
    Publication date: July 18, 2019
    Inventor: James L. Cairns
  • Publication number: 20190115685
    Abstract: An apparatus, combination and method of sealably enclosing junctions include an elastomeric seal that extends at least partially into a socket of a connector. The presently disclosed technology can be useful in sealably enclosing junctions of individual, jacketed-wire conductors to the terminals of underwater connectors. The presently disclosed technology can serve some or all of several purposes. A first of these purposes can be to sealably enclose a conductor-to-connector junction to prevent fluid ingress. A second purpose can be to electrically insulate a junction from its external environment, and a third purpose can be to provide strain relief for a jacketed-wire conductor at a junction.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 18, 2019
    Inventor: James L. Cairns
  • Patent number: 10236623
    Abstract: A connector for sealably engaging contacts therein can include a first unit having one or more first contacts that can each include an elongated shaft with a conductive tip. A second unit can have one or more closed chambers therein. Each closed chamber can contain fluid. At least one of the closed chambers can contain one or more second contacts. Each closed chamber can have at least one resilient end wall portion including a bore and a tap integrally formed with the resilient end wall portion. The bore and the tap can create a sealing engagement therebetween when not engaged with the first contact, and create a sealing engagement with the first contact when engaged with the first contact. At least a portion of each closed chamber can be configured to be movable with respect to another portion of the closed chamber.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: March 19, 2019
    Assignee: Pontus Subsea Connectors LLC
    Inventor: James L. Cairns
  • Publication number: 20190067868
    Abstract: A connector for sealably engaging contacts therein can include a first unit having one or more first contacts that can each include an elongated shaft with a conductive tip. A second unit can have one or more closed chambers therein. Each closed chamber can contain fluid. At least one of the closed chambers can contain one or more second contacts. Each closed chamber can have at least one resilient end wall portion including a bore and a tap integrally formed with the resilient end wall portion. The bore and the tap can create a sealing engagement therebetween when not engaged with the first contact, and create a sealing engagement with the first contact when engaged with the first contact. At least a portion of each closed chamber can be configured to be movable with respect to another portion of the closed chamber.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 28, 2019
    Inventor: James L. Cairns
  • Publication number: 20180193627
    Abstract: A penetrable interface configured to separate two or more spaces can include an elastomeric seal having a first segment and a second segment. A portion of the second segment can be integrally formed with a portion of the first segment. The first and second segments can create a sealing engagement therebetween in the absence of an applied force on the second segment. The first and second segments can be distorted out of sealing engagement when subjected to the applied force on the second segment.
    Type: Application
    Filed: January 3, 2018
    Publication date: July 12, 2018
    Inventor: James L. Cairns
  • Patent number: 9715068
    Abstract: The cable termination may include a housing and a cable having at least one conductor disposed within the housing with an elastomeric body disposed in the housing and constrictively stretched over a portion of the cable. A retainer may be disposed around a portion of the cable for retaining the elastomeric body on the cable. The cable termination may also include an enclosure capable of changing volumetrically in response to fluctuating pressure disposed in the housing and around a portion of the cable.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: July 25, 2017
    Assignee: PONTUS SUBSEA CONNECTORS LLC
    Inventor: James L. Cairns
  • Patent number: 9673605
    Abstract: The boot seal may include an elastomeric body constrictively stretched over an end of a cable and a retainer to grip the cable. The retainer may be a body having a central opening to receive the cable and have a plurality of inclined tines extending radially inwardly from the body with the inclined tines having distal ends forming the central opening. The elastomeric body may have a first sleeve on an end of the boot seal for receiving the end of the cable.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: June 6, 2017
    Assignee: Pontus Subsea Connectors LLC
    Inventor: James L. Cairns
  • Publication number: 20170003455
    Abstract: The cable termination may include a housing and a cable having at least one conductor disposed within the housing with an elastomeric body disposed in the housing and constrictively stretched over a portion of the cable. A retainer may be disposed around a portion of the cable for retaining the elastomeric body on the cable. The cable termination may also include an enclosure capable of changing volumetrically in response to fluctuating pressure disposed in the housing and around a portion of the cable.
    Type: Application
    Filed: April 8, 2016
    Publication date: January 5, 2017
    Inventor: James L. Cairns
  • Publication number: 20160329694
    Abstract: The boot seal may include an elastomeric body constrictively stretched over an end of a cable and a retainer to grip the cable. The retainer may be a body having a central opening to receive the cable and have a plurality of inclined tines extending radially inwardly from the body with the inclined tines having distal ends forming the central opening. The elastomeric body may have a first sleeve on an end of the boot seal for receiving the end of the cable.
    Type: Application
    Filed: April 7, 2016
    Publication date: November 10, 2016
    Inventor: James L. Cairns
  • Patent number: 9263824
    Abstract: A plug and receptacle electrical connector can be repeatedly connected and disconnected in harsh environments such as seawater. The plug unit has blade-like pins with insulated shafts and conductive tips. The plug unit engages the receptacle unit housing socket contacts within closed, nested, oil-filled chambers. The chambers are pressure balanced to the in-situ environment and to each other and employ positive means to remain sealed before, during, and after mating and demating.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: February 16, 2016
    Assignee: Stillwater Trust
    Inventor: James L. Cairns
  • Publication number: 20150340800
    Abstract: A plug and receptacle electrical connector can be repeatedly connected and disconnected in harsh environments such as seawater. The plug unit has blade-like pins with insulated shafts and conductive tips. It engages a receptacle unit housing respective socket contacts within closed, nested, oil-filled chambers. The chambers are pressure balanced to the in-situ environment and to each other, and employ positive means to remain sealed before, during, and after mating and demating.
    Type: Application
    Filed: November 3, 2014
    Publication date: November 26, 2015
    Inventor: James L. Cairns
  • Patent number: 8900000
    Abstract: A robotically mateable connector has a flying-lead plug unit and a receptacle unit adapted for releasable mating engagement with the plug unit. The plug unit includes a robotic manipulator grip assembly. A rear end shell which includes a cable attachment fitting holds a plug module having an outer surface carrying a plurality of axially spaced, annular contacts of gradually decreasing diameter towards a forward end of the module, and is rotatable relative to a plug front shell. The receptacle unit contains a receptacle module having a bore containing spaced annular contact seats of gradually increasing diameter designed for engagement with the plug contacts when the plug and receptacle units are fully mated. This provides a robotically actuated electrical connector that requires no rotational keying and relieves cable torque.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: December 2, 2014
    Assignee: Teledyne ODI, Inc.
    Inventor: James L. Cairns
  • Patent number: 8511908
    Abstract: A connector has first and second connector units, each unit incorporating an oil-filled chamber housing one or more contact elements to be joined. At least one connector unit has a face seal assembly which seals the forward end of the contact chamber in the unmated condition. The face seal assembly comprises three elements. One element is an annular elastomeric seal situated radially outward. The two other elements are inner seal elements which are pressed together radially to form a substantially disc-like shape. The resulting disc-like shaped seal fills the central, circular end face opening of the outer annular seal. As the connector units are mated, elements of the elastomeric face seal assembly are displaced, one axially, and others both axially and radially, creating an opening between the oil-filled chambers that is sealed from the outside environment.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: August 20, 2013
    Assignee: Teledyne Instruments, Inc.
    Inventors: James L. Cairns, Srikanth Ramasubramanian, Stewart M. Barlow
  • Publication number: 20120294569
    Abstract: A connector has first and second connector units, each unit incorporating an oil-filled chamber housing one or more contact elements to be joined. At least one connector unit has a face seal assembly which seals the forward end of the contact chamber in the unmated condition. The face seal assembly comprises three elements. One element is an annular elastomeric seal situated radially outward. The two other elements are inner seal elements which are pressed together radially to form a substantially disc-like shape. The resulting disc-like shaped seal fills the central, circular end face opening of the outer annular seal. As the connector units are mated, elements of the elastomeric face seal assembly are displaced, one axially, and others both axially and radially, creating an opening between the oil-filled chambers that is sealed from the outside environment.
    Type: Application
    Filed: June 4, 2012
    Publication date: November 22, 2012
    Applicant: TELEDYNE INSTRUMENTS, INC.
    Inventors: James L. Cairns, Srikanth Ramasubramanian, Stewart M. Barlow
  • Patent number: 8292645
    Abstract: A keyless harsh environment connector has a plug unit containing a pin having an outer surface carrying a plurality of axially spaced, annular contacts of gradually decreasing diameter towards a forward end of the pin, and a receptacle unit having a fluid-filled chamber containing a corresponding number of axially spaced, annular contacts of gradually increasing diameter towards a forward end of the receptacle unit, configured for mating engagement with corresponding contacts on the plug pin when the units are mated. A sealing mechanism at a forward end of the chamber seals the chamber when the units are unmated and forms a seal with the plug pin on mating of the units. The plug pin is hollow and extends through an interface between opposing seals at the front end of the receptacle contact chamber during mating.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: October 23, 2012
    Assignee: Teledyne Instruments, Inc.
    Inventor: James L. Cairns
  • Patent number: 8192089
    Abstract: A connector has first and second connector units, each unit incorporating an oil-filled chamber housing one or more contact elements to be joined. At least one connector unit has a face seal assembly which seals the forward end of the contact chamber in the unmated condition. The face seal assembly comprises three elements. One element is an annular elastomeric seal situated radially outward. The two other elements are inner seal elements which are pressed together radially to form a substantially disc-like shape. The resulting disc-like shaped seal fills the central, circular end face opening of the outer annular seal. As the connector units are mated, elements of the elastomeric face seal assembly are displaced, one axially, and others both axially and radially, creating an opening between the oil-filled chambers that is sealed from the outside environment.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: June 5, 2012
    Assignee: Teledyne Instruments, Inc.
    Inventors: James L. Cairns, Srikanth Ramasubramanian, Stewart M. Barlow
  • Patent number: 8025506
    Abstract: A rotary joint connector has a plug having a plug contact module and a mating receptacle having a receptacle contact module designed for mating engagement with the plug contact module when the connector is fully mated. One of the units has front and rear shells which are rotatably coupled together and contain the contact module which is held in the rear shell so that the rear shell and contact module are free to rotate in the front shell. The mating contact arrangement is such that the plug and receptacle contact modules do not have to be rotationally aligned to maintain electrical contact, so that relative rotation of the electrical contacts of the two contact modules about the mating axis as a result of rotation of the rear shell does not degrade the quality of the connected circuits.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: September 27, 2011
    Assignee: Teledyne ODI, Inc.
    Inventor: James L. Cairns
  • Publication number: 20110207340
    Abstract: A robotically mateable connector has a flying-lead plug unit and a receptacle unit adapted for releasable mating engagement with the plug unit. The plug unit includes a robotic manipulator grip assembly. A rear end shell which includes a cable attachment fitting holds a plug module having an outer surface carrying a plurality of axially spaced, annular contacts of gradually decreasing diameter towards a forward end of the module, and is rotatable relative to a plug front shell. The receptacle unit contains a receptacle module having a bore containing spaced annular contact seats of gradually increasing diameter designed for engagement with the plug contacts when the plug and receptacle units are fully mated. This provides a robotically actuated electrical connector that requires no rotational keying and relieves cable torque.
    Type: Application
    Filed: February 18, 2011
    Publication date: August 25, 2011
    Applicant: TELEDYNE ODI, INC.
    Inventor: James L. Cairns