Patents by Inventor David Charles Hughes

David Charles Hughes 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: 8109776
    Abstract: Stiff and soft materials each provide certain advantages when used in the manufacture of separable insulated connectors, such as elbow and T-body connectors. Utilizing a shell or an insert that includes one section made from a stiff material and one section made from a soft material can provide a separable insulated connector that capitalizes on the advantages associated with both types of materials. The stiff materials and soft materials can be placed strategically on the shell or insert of the separable insulated connector to maximize the advantages of each material. For example, the stiff material can be used to form a section of the separable insulated connector where strength and durability is most desirable, and conversely, the soft material can be used to form a section of the connector where flexibility is desirable.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: February 7, 2012
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, Thomas Augustia, John Mitchell Makal, Michael John Gebhard, Sr.
  • Publication number: 20110287652
    Abstract: An adapter for connecting a 600 ampere deadbreak bushing to a pull-on and pull-off deadbreak elbow used for normally non-current carrying applications. The adapter comprises a two part separable assembly having first and second ends. The first end is threaded to mate with a threaded opening in the deadbreak bushing and the second end is threaded to mate with a threaded opening in a lug of the deadbreak elbow. The two part separable assembly is coupled together with the first part of the assembly that is screwed into the deadbreak bushing and has a groove that snaps (latches) into a corresponding latching ring in a molded insert of the deadbreak elbow that surrounds the second part of the assembly screwed into the lug inside of the deadbreak elbow. Other latching mechanisms may be used to mechanically and electrically couple together the first and second parts of the adapter assembly.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 24, 2011
    Applicant: Cooper Technologies Company
    Inventors: Paul Michael Roscizewski, David Charles Hughes
  • Patent number: 8056226
    Abstract: A dual interface separable insulated connector comprising a faraday cage molded over a bus bar for use in an electric power system and a method of manufacturing the same are provided. The faraday cage can be disposed within a semi-conductive shell. The configuration of the separable insulated connector can provide for easier bonding between the faraday cage and insulating material. Additionally, the configuration can eliminate or reduce the need to coat the bus bar with an adhesive agent and to smooth the metal bus bar to remove burrs, other irregularities, and sharp corners from the bar. Manufacturing the dual interface separable insulated connector can include molding a semi-conductive rubber faraday cage over a conductive bus bar, inserting the faraday cage into a shell, and injecting insulating material between the faraday cage and shell.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: November 15, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, Mark Clifford Kadow, Michael John Gebhard, Sr.
  • Patent number: 8038457
    Abstract: A separable loadbreak connector system includes mating electrical connectors. At least one of the electrical connectors includes an electrically-resistive housing having a generally conically-shaped interior bore. A semiconductive insert is disposed within a portion of the interior bore and presents an inner radial surface that defines a generally conically-shaped recess. An elongated probe assembly is disposed within the housing and includes a probe and a sheath of insulative material disposed over at least a portion of a length of the probe. A portion of the sheath extends in a radially outward direction from a base of the probe. An electrically-resistive insulative layer extends from the conically-shaped interior bore, along at least a portion of the inner radial surface of the semiconductive insert. The insulative layer extends radially inwardly in overlapping engagement with a portion of the sheath.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: October 18, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, Brian Todd Steinbrecher
  • Patent number: 7963783
    Abstract: Separable connector assemblies include one or more pairs of connectors that engage and disengage one another in electrical connection and disconnection operations, respectively. An operator can disengage the connectors by pushing the connectors together and then pulling the connectors apart. Pushing the connectors together shears interface adhesion between the connectors, making it easier for the operator to pull the connectors apart. An indicator integral or coupled to one of the connectors can indicate whether the first and second connectors are in the pushed-in-position. A window in the other connector includes an opening, channel, and/or translucent or semi-translucent material through which the indicator may be seen. The window and/or one or more vents in a tubular member of one of the connectors can include a channel that provides an air path for ingress of air between the connectors, to thereby remove or reduce a vacuum or partial vacuum between the connectors.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: June 21, 2011
    Assignee: Cooper Technologies Company
    Inventor: David Charles Hughes
  • Patent number: 7963782
    Abstract: Separable connector assemblies include one or more pairs of connectors that engage and disengage one another in electrical connection and disconnection operations, respectively. An operator can disengage the connectors by pushing the connectors together and then pulling the connectors apart. Pushing the connectors together shears interface adhesion between the connectors, making it easier for the operator to pull the connectors apart. An indicator integral or coupled to one of the connectors can indicate whether the first and second connectors are in the pushed-in-position. A window in the other connector includes an opening, channel, and/or translucent or semi-translucent material through which the indicator may be seen. The window and/or one or more vents in a tubular member of one of the connectors can include a channel that provides an air path for ingress of air between the connectors, to thereby remove or reduce a vacuum or partial vacuum between the connectors.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: June 21, 2011
    Assignee: Cooper Technologies Company
    Inventor: David Charles Hughes
  • Patent number: 7958631
    Abstract: Removal of a conventional separable insulated connector from an electric power system often results in a shortened electric cable. An extender for a separable insulated connector enables the separable insulated connector to connect to a shortened cable. A conventional cable adapter is inserted into the extender, which includes a conductive connector for accepting the shortened cable and a conductive rod for carrying electric power from the shortened cable to the separable insulated connector. The extender also includes an inner semi-conductive layer that borders the conductive rod and compression connector, an outer semi-conductive layer, and a insulating layer between the two semi-conductive layers. The extender is inserted into a separable insulated connector, which is then connected to the electric power system.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: June 14, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, Paul Michael Roscizewski
  • Patent number: 7950939
    Abstract: Medium voltage separable insulated connector system for power distribution systems and configured to make and break energized connections at rated voltage but in the absence of load current.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: May 31, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, Brian Todd Steinbrecher, John Mitchell Makal, Frank John Muench
  • Patent number: 7950940
    Abstract: Separating connector assemblies of a separable connector system. The separable connector assemblies include one or more pairs of connectors configured to engage and disengage one another in electrical connection and disconnection operations, respectively. An operator can disengage the connectors by pushing the connectors together and then pulling the connectors apart. Pushing the connectors together shears interface adhesion between the connectors, making it easier for the operator to pull the connectors apart. One of the connectors can include a nose end having an undercut segment configured to not engage an interior surface of the other connector when the connectors are engaged. Limiting the surface area of the nose end that interfaces with the interior surface of the other connector reduces surface adhesion and a pressure drop when separating the connectors, making separation easier to perform.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: May 31, 2011
    Assignee: Cooper Technologies Company
    Inventor: David Charles Hughes
  • Patent number: 7946870
    Abstract: Separable insulated connector systems for power distribution systems wherein the interfaces of the mating connectors are modified to reduce mating and separation force.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: May 24, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, Paul Michael Roscizewski
  • Publication number: 20110081793
    Abstract: A separable loadbreak connector system includes mating electrical connectors. At least one of the electrical connectors includes an electrically-resistive housing having a generally conically-shaped interior bore. A semiconductive insert is disposed within a portion of the interior bore and presents an inner radial surface that defines a generally conically-shaped recess. An elongated probe assembly is disposed within the housing and includes a probe and a sheath of insulative material disposed over at least a portion of a length of the probe. A portion of the sheath extends in a radially outward direction from a base of the probe. An electrically-resistive insulative layer extends from the conically-shaped interior bore, along at least a portion of the inner radial surface of the semiconductive insert. The insulative layer extends radially inwardly in overlapping engagement with a portion of the sheath.
    Type: Application
    Filed: December 7, 2010
    Publication date: April 7, 2011
    Applicant: COOPER TECHNOLOGIES COMPANY
    Inventors: David Charles Hughes, Brian Todd Steinbrecher
  • Patent number: 7909635
    Abstract: A jacket sleeve with grippable tabs provides protection to exposed portions of cable that are connected to an electrical connection. The jacket sleeve can be made as part of the electrical connector or may be connected subsequent to its creation through the use of glues or other adhesives. The jacket sleeve can be made of a material that is more pliable than the electrical connector, making it easier for a lineperson to place the sleeve over an exposed portion of cable. The jacket sleeve can include holes or slots either in the sleeve or in tabs that are attached to the sleeve. A lineperson can place one or more fingers into each hole or slot in order to get a better grip on the sleeve and pull the sleeve over the exposed portion of cable with less slippage and effort on the part of the lineperson.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: March 22, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, John Mitchell Makal, Michael John Gebhard, Sr., Paul Michael Roscizewski
  • Patent number: 7905735
    Abstract: Separating connector assemblies of a separable connector system. The separable connector assemblies include one or more pairs of connectors configured to engage and disengage one another in electrical connection and disconnection operations, respectively. An operator can disengage the connectors by pushing the connectors together and then pulling the connectors apart. Pushing the connectors together shears interface adhesion between the connectors, making it easier for the operator to pull the connectors apart. One of the connectors can include a nose end having an undercut segment configured to not engage an interior surface of the other connector when the connectors are engaged. Limiting the surface area of the nose end that interfaces with the interior surface of the other connector reduces surface adhesion and a pressure drop when separating the connectors, making separation easier to perform.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: March 15, 2011
    Assignee: Cooper Technologies Company
    Inventor: David Charles Hughes
  • Patent number: 7901227
    Abstract: A separable loadbreak connector system includes mating electrical connectors. At least one of the electrical connectors includes an electrically-resistive housing having a generally conically-shaped interior bore. A semiconductive insert is disposed within a portion of the interior bore and presents an inner radial surface that defines a generally conically-shaped recess. An elongated probe assembly is disposed within the housing and includes a probe and a sheath of insulative material disposed over at least a portion of a length of the probe. A portion of the sheath extends in a radially outward direction from a base of the probe. An electrically-resistive insulative layer extends from the conically-shaped interior bore, along at least a portion of the inner radial surface of the semiconductive insert. The insulative layer extends radially inwardly in overlapping engagement with a portion of the sheath.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: March 8, 2011
    Assignee: Cooper Technologies Company
    Inventor: David Charles Hughes
  • Patent number: 7901228
    Abstract: A fuse test and ground device includes an insulated housing with a bore that extends from the front of the housing towards the rear of the housing. An electrical contact is disposed partially within the bore. A current interrupter, such as a fuse, is electrically connected between the contact and a testing ground lead. An eye, having it's surface insulated by the housing, can be attached to the housing and provide a connection point for manipulation of the device. A grounding bore extends from a second aperture into the housing and provides an electrical connection to the contact. A grounding plug can be connected to ground on one end and inserted into the grounding bore to create a permanent ground for the device. An annunciator is connected to the current interrupter such that the annunciator provides an indication when a current flows through the current interrupter.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: March 8, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, Steven Guy Whitmore
  • Patent number: 7891999
    Abstract: A fuse test and ground device includes an insulated housing with a bore that extends from the front of the housing towards the rear of the housing. An electrical contact is disposed partially within the bore. A current interrupter, such as a fuse, is electrically connected between the contact and a testing ground lead. An eye, having it's surface insulated by the housing, can be attached to the housing and provide a connection point for manipulation of the device. A grounding bore extends from a second aperture into the housing and provides an electrical connection to the contact. A grounding plug can be connected to ground on one end and inserted into the grounding bore to create a permanent ground for the device. An annunciator is connected to the current interrupter such that the annunciator provides an indication when a current flows through the current interrupter.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: February 22, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, Steven Guy Whitmore
  • Patent number: 7883356
    Abstract: A jacket sleeve with grippable tabs provides protection to exposed portions of cable that are connected to an electrical connection. The jacket sleeve can be made as part of the electrical connector or may be connected subsequent to its creation through the use of glues or other adhesives. The jacket sleeve can be made of a material that is more pliable than the electrical connector, making it easier for a lineperson to place the sleeve over an exposed portion of cable. The jacket sleeve can include holes or slots either in the sleeve or in tabs that are attached to the sleeve. A lineperson can place one or more fingers into each hole or slot in order to get a better grip on the sleeve and pull the sleeve over the exposed portion of cable with less slippage and effort on the part of the lineperson.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: February 8, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, John Mitchell Makal, Michael John Gebhard, Sr., Paul Michael Roscizewski
  • Patent number: 7878849
    Abstract: Removal of a conventional separable insulated connector from an electric power system often results in a shortened electric cable. An extender for a separable insulated connector enables the separable insulated connector to connect to a shortened cable. A conventional cable adapter is inserted into the extender, which includes a conductive connector for accepting the shortened cable and a conductive rod for carrying electric power from the shortened cable to the separable insulated connector. The extender also includes an inner semi-conductive layer that borders the conductive rod and compression connector, an outer semi-conductive layer, and a insulating layer between the two semi-conductive layers. The extender is inserted into a separable insulated connector, which is then connected to the electric power system.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: February 1, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, Paul Michael Roscizewski
  • Patent number: 7870668
    Abstract: An electrical connector includes a sleeve defining an axis and a contact assembly inserted in the sleeve, the contact assembly including pieces that move axially relative to one another during a fault close operation. An interface between the sleeve and the contact assembly is configured to permit replacement of the contact assembly without replacing the sleeve.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: January 18, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, John Mitchell Makal, Paul Roscizewski
  • Patent number: 7862354
    Abstract: Separable loadbreak connectors include an interference element spaced about the contact tube that is configured to engage a portion of a connector piston.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: January 4, 2011
    Assignee: Cooper Technologies Company
    Inventors: David Charles Hughes, Paul Michael Roscizewski