Knife Blade Contact Patents (Class 200/554)
  • Patent number: 11961689
    Abstract: A load break tool is disclosed. The load break tool includes a main housing; a sleeve having a first end and a second end coaxially mounted in the main housing and slidable between a retracted position and an extended position, wherein the second end of the sleeve remains in the main housing in the extended position; a clip assembly connected to the main housing for engaging a pull ring of a circuit isolating device; and a hook engaging terminal rotatably connected to the first end of the sleeve, such that the hook engaging terminal rotates relative to the clip assembly.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: April 16, 2024
    Assignee: Utility Solutions, Inc.
    Inventors: Peter Shirilla, Eugene H. Wood, Matthew Nolte, Jonathon S. Spencer, Thomas Beane, Zachary Greer
  • Patent number: 11228147
    Abstract: An assembly includes at least two disconnect terminals and at least one coupling device, wherein the at least two disconnect terminals each include at least one switching lever. Each switching lever is adjustable independently from the other switching lever from a first switch position into at least one second switch position and back, wherein the switching levers are connectable by the at least one coupling device. The at least one coupling device connects the switching levers if the at least one coupling device is switched into at least one first coupling position, and the at least one coupling device separates the switching levers from one another if the at least one coupling device is switched into at least one second coupling position. A disconnect terminal includes the at least one coupling device.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: January 18, 2022
    Inventors: Andreas Rutz, Genadij Neumann, Peter Meyer
  • Patent number: 9409247
    Abstract: In joining a first metal member composed of a first metal to a second metal member composed of a second metal with a joining material interposed therebetween, the joining material including a low melting point metal having a lower melting point than the first metal and/or the second metal, the low melting point metal composing the joining material is Sn or an alloy containing Sn, at least one of the first metal and the second metal is a metal or an alloy which forms an intermetallic compound with the low melting point metal composing the joining material, and heat treatment is performed at a temperature at which the low melting point metal melts in a state of locating the joining material between the first metal member and the second metal member.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: August 9, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kosuke Nakano, Hidekiyo Takaoka
  • Patent number: 8581131
    Abstract: A modular terminal that has a terminal housing, a busbar composed of two sections, two terminal elements for connecting a conductor to each section of the busbar, and an isolating blade which is pivotally mounted in the terminal housing. The two sections are interconnected in a first position of the isolating blade while being disconnected from each other in a second position of the isolating blade. The ends of the sections of the busbar which face away from the terminal elements are bent in such a way that the end of the first section of the busbar contacts the isolating blade in an upper contact zone while the end of the second section (4) of the busbar contacts the isolating blade in a lower contact zone in the first position of the isolating blade.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: November 12, 2013
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventor: Carsten Pollmann
  • Patent number: 8371265
    Abstract: The automobile emergency stop system includes a knife switch that is wired to one of the wires running to a fuel pump of a vehicle. The system is designed for use with a parking brake such that upon breaking the circuit, electrical flow to the fuel pump ceases and the engine stops. The system is designed to close the circuit when the parking brake is not lifted. The system is adapted for all types of parking brakes, and includes hand actuated or foot actuated parking brakes. The system is designed for use as an anti-theft measure as well as a safety measure for a computer controlled engine that faults and accelerates out of control.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: February 12, 2013
    Inventor: Stephen Call
  • Patent number: 8263890
    Abstract: A switch includes a blade-type moving contact that extends in a radial direction from a turning center and reciprocates such that its free end draws a turning locus, and a fixed contact that moves toward and away from the moving contact in a turning range of the moving contact. The blade-type moving contact and the fixed contact are accommodated a tank. The moving contact is supported by the movable-side support conductor. The fixed contact is supported by the fixed-side support conductor. An opening through which the moving contact enters is arranged to be opposed to a turning center of the moving contact. The movable-side support conductor and the fixed-side support conductor are arranged substantially on a same straight line extending along a center axis of the tank.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: September 11, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Daisuke Fujita, Hitoshi Sadakuni
  • Patent number: 8188396
    Abstract: A monitored SCADA Ready Field Test (FT) Switch is disclosed. The monitored switch relates to the incorporation of a monitoring switch for each switch unit in a FT switch to monitor the position of the corresponding switch unit and the FT switch, generally.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: May 29, 2012
    Assignee: General Electric Company
    Inventors: Jimmy Bou, Michael Edward Haas, Brian Sonnenberg
  • Publication number: 20120085736
    Abstract: Switch assemblies and electrical distribution devices for making and breaking electrical connections in an electrical circuit are disclosed herein. One aspect of the present disclosure is directed to a switch assembly that includes a pair of electrically conductive jaws attached to a platform. The first jaw is configured to electrically connect to an incoming line of the electrical circuit, whereas the second jaw is configured to electrically connect to an outgoing line. The switch assembly also includes a blade having at least two electrically conductive plates that are attached to and spaced from each other via an electrical insulator. The blade is pivotably coupled to the platform to rotate between a disengaged position, whereat the blade is electrically decoupled from the first and second jaws, and an engaged position, whereat the blade delivers an electrical current from the incoming line through the first and second plates to the outgoing line.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 12, 2012
    Applicant: Schneider Electric USA, Inc.
    Inventor: Hamid S. Abroy
  • Patent number: 8143546
    Abstract: An electrical switch including a first section; a second section; and a contact arm rotatably connected to the first section. An end of the contact arm is movable between an open position spaced from the second section and a closed position contacting the second section. The second section includes a cam assembly configured to assist in moving the end of the contact arm between the open and closed positions.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: March 27, 2012
    Assignee: Hubbell Incorporated
    Inventor: Robert V. De France
  • Publication number: 20110062011
    Abstract: A modular terminal that has a terminal housing, a busbar composed of two sections, two terminal elements for connecting a conductor to each section of the busbar, and an isolating blade which is pivotally mounted in the terminal housing. The two sections are interconnected in a first position of the isolating blade while being disconnected from each other in a second position of the isolating blade. The ends of the sections of the busbar which face away from the terminal elements are bent in such a way that the end of the first section of the busbar contacts the isolating blade in an upper contact zone while the end of the second section (4) of the busbar contacts the isolating blade in a lower contact zone in the first position of the isolating blade.
    Type: Application
    Filed: March 12, 2009
    Publication date: March 17, 2011
    Applicant: PHOENIX CONTACT GMBH & CO. KG
    Inventor: Carsten Pollmann
  • Publication number: 20100213045
    Abstract: A switch includes a blade-type moving contact that extends in a radial direction from a turning center and reciprocates such that its free end draws a turning locus, and a fixed contact that moves toward and away from the moving contact in a turning range of the moving contact. The blade-type moving contact and the fixed contact are accommodated a tank. The moving contact is supported by the movable-side support conductor. The fixed contact is supported by the fixed-side support conductor. An opening through which the moving contact enters is arranged to be opposed to a turning center of the moving contact. The movable-side support conductor and the fixed-side support conductor are arranged substantially on a same straight line extending along a center axis of the tank.
    Type: Application
    Filed: May 5, 2010
    Publication date: August 26, 2010
    Applicant: Mitsubishi Electric Corporation
    Inventors: Daisuke FUJITA, Hitoshi Sadakuni
  • Publication number: 20100006414
    Abstract: An electrical switch including a first section; a second section; and a contact arm rotatably connected to the first section. An end of the contact arm is movable between an open position spaced from the second section and a closed position contacting the second section. The second section includes a cam assembly configured to assist in moving the end of the contact arm between the open and closed positions.
    Type: Application
    Filed: May 15, 2009
    Publication date: January 14, 2010
    Inventor: Robert V. De France
  • Patent number: 6271489
    Abstract: A pressure switch device and method of forming the device is disclosed. The switch has a hinge terminal having a fixed end of a blade apparatus pivotally attached thereto, a jaw terminal adapted to receive a free end of the blade apparatus at a receiving portion, the blade apparatus having two blades fastened together and a spacer between the blades. Pairs of cams at either end of the blades rotate to engage protrusions in order to create a pressure lock. The pressure is enhanced by a spring washer. A connecting link attached one of each pair of cams, a drive link attached to the blades and connecting link, and a drive shaft cooperate to open and close the switch such that the switch may be first placed in a closed position, and then locked by further rotation of the drive shaft as the cam protrusions engage. The drive shaft is spring loaded to create torsional force which must be overcome to rotate the drive shaft in either direction.
    Type: Grant
    Filed: December 31, 1999
    Date of Patent: August 7, 2001
    Assignee: Square D Company
    Inventors: Edward I. Engel, Larry Gene Ratliff
  • Patent number: 5722534
    Abstract: A power disconnect switch having a generally parallelepiped base with first and second electrical conductors mounted thereon. A switch piece pivots on one of the electrical conductors to connect to the other electrical conductor. The switch piece has an insulated handle, and a projection extends from the handle. The projection has a shape which allows it to fit snugly into a holder tool, and this allows an operator to open the switch without danger of electrocution. An angled insulating plate which fits next to the parallelepiped base has a side portion which insulates the switch from adjacent switches, and a bottom portion which insulates screws in the parallelepiped base from a metal panel, shelf, or box, on which the switch may be mounted.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: March 3, 1998
    Inventor: Jere Wright
  • Patent number: 5486669
    Abstract: A lever type switching assembly having a pair of generally U-shaped spring blade contact members disposed in oppositely spaced-parallel arrangement for alternate actuation by a common paddle lever frictionally contacting the contact members for effecting switching upon user movement of the lever in a clockwise direction. Each contact blade member has one end pivoted on a center contact for rocking motion to cause the U-shaped region and the opposite end of the blade member to make and break contact with side-contacts on opposite sides of the center contact. Overtravel of the paddle in one direction after actuation causes the contact blade member to break from the side contact and make contact with an auxiliary contact. A spring biased plunger on the paddle lever engages a detent surface on the base to give a tactiley discernible indication.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: January 23, 1996
    Assignee: Eaton Corporation
    Inventor: Thomas J. Oshgan
  • Patent number: 5260534
    Abstract: A rocker switch includes a casing composed of a lower base and an upper cover, an input terminal and an output terminal, respectively connected with an input electrical cord and an output electrical cord, and embedded in two sockets disposed in two opposite sides in the lower base, a pair of electrically conductive helical springs each spring retained in each socket for resiliently clamping either input or output cord with either spring and either terminal and for resiliently retaining each terminal in each socket, and an electrical insulative rocker switching device seesawly mounted in the casing for operatively separating two contactor blades respectively protruded from the two terminals for disconnecting a power supply, or for contacting the two contactor blades of the two terminals for connecting the power supply.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: November 9, 1993
    Inventor: Chien-Lin Chung
  • Patent number: 5073686
    Abstract: A bar providing a switching member is pivotally connected to a terminal supported within an insulating housing. In normal operating position the knife switch is closed to two switch contacts which allow connection of power from one of the contacts to two types of circuits, such as propulsion and the auxiliary circuits of a railway car. The insulating housing may be provided with a cover which is closed when the switch is in normal closed circuit operating position. To change the position of the switch, the cover must be opened. The bar may be pivoted somewhat less than 180.degree. to engage a single contact which connects the power to one of the circuits, but not the other, for example, only to the auxiliary circuit of a railway car. The knife switch is prevented from moving 180.degree. by an end wall of the housing. But in that position it closes to one contact so that it may be viewed as being closed to power the auxiliary circuit.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: December 17, 1991
    Assignee: Bombardier Corporation
    Inventor: Claude D. Gabriel