One End Of Spring Is Fixed Patents (Class 200/467)
  • Patent number: 10418195
    Abstract: A contact lever for use in an electrical switch assembly so as to allow selectable movement within the switch assembly of a contact lever contact member from electrical connection with a first stationary contact member into electrical connection with a second stationary contact member, the contact lever including: first and second lever arms that are connected at respective first ends to the contact lever contact member; said first and second lever arms having respective second ends, and, said first and second lever arms being configured to extend away from the contact member and to terminate at their respective second ends; a gap disposed between the first and second lever arms which separates the first and second lever arms as they extend away from the contact member, and wherein the gap is configured to allow movement of a spring element of the switch assembly therethrough; and a bridge member configured for connection with the first and second lever arms so as to traverse the gap separating the first and
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: September 17, 2019
    Assignee: Defond Electech Co., Ltd
    Inventor: Kin Yu Wong
  • Patent number: 9299506
    Abstract: In a linear actuator, a limit switch includes an insulation housing formed with an opening and plural slots; a press block disposed on the insulation housing and exposed outside the opening; a pair of connection pins disposed in the insulation housing and spaced with an interval, and respectively protruded from the slots; an elastic connection guiding set including an elastic unit pressed by the press block and a connection guiding sheet connected to the elastic unit, wherein the connection guiding sheet are connected to the pair of connection pins; and a diode disposed in the insulation housing and including two guide pins, wherein the two guide pins are respectively and correspondingly connected to the pair of connection pins in the insulation housing. Accordingly, the electrical connection for the limit switch is simplified thereby facilitating automatic production.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: March 29, 2016
    Assignee: TIMOTION TECHNOLOGY CO., LTD.
    Inventor: Kuan-Shu Tseng
  • Patent number: 8853582
    Abstract: An electrical switch provides a center contact moving between two outer contacts, at least one of which is mounted on a lever. In the event of a contact weld forming between the center contact and the lever mounted contact, unison motion of the lever mounted contact following the center contact during switching causes a strong shear force tending to break the weld. In one embodiment, a fulcrum wall striking the lever of the lever mounted contact causes increased angulation between the contacts so that unison motion rotates and peels the contacts apart.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: October 7, 2014
    Assignee: Illinois Tool Works Inc.
    Inventors: Adrian J. Tengler, Michael S. Osvatic, Michael K. Hintz
  • Patent number: 8796574
    Abstract: A switch includes a movable contact piece having one end as a supporting point of turn and the other end arranged with a movable contact, a turning member having the other end as a supporting point of turn, a coil spring having one end locked to one end of the turning member and the other end locked to an intermediate portion of the movable contact piece, and a push button supported and slidable in an up and down direction. The movable contact piece is inverted by pushing down the one end of the turning member with the push button so as to make the movable contact approach and separate from a fixed contact. The turning member includes a position regulating portion that is brought into contact with the coil spring and brings the movable contact into contact with the fixed contact while maintaining a contact state with the coil spring.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: August 5, 2014
    Assignee: Omron Corporation
    Inventors: Shigenobu Kishi, Yuya Kudo, Takayuki Abe, Kenichi Ando, Hidemi Nakamura
  • Publication number: 20120152714
    Abstract: A switch includes a movable contact piece having one end as a supporting point of turn and the other end arranged with a movable contact, a turning member having the other end as a supporting point of turn, a coil spring having one end locked to one end of the turning member and the other end locked to an intermediate portion of the movable contact piece, and a push button supported and slidable in an up and down direction. The movable contact piece is inverted by pushing down the one end of the turning member with the push button so as to make the movable contact approach and separate from a fixed contact. The turning member includes a position regulating portion that is brought into contact with the coil spring and brings the movable contact into contact with the fixed contact while maintaining a contact state with the coil spring.
    Type: Application
    Filed: March 23, 2011
    Publication date: June 21, 2012
    Applicant: OMRON CORPORATION
    Inventors: Shigenobu Kishi, Yuya Kudo, Takayuki Abe, Kenichi Ando, Hidemi Nakamura
  • Patent number: 8115131
    Abstract: A switch for selectively establishing a first conductive way between a first conductive fixed contact and a second conductive fixed contact or a second conductive way between the first conductive fixed contact and a third conductive fixed contact. The switch includes a housing and a pushbutton extending out of the housing and comprising a driving portion formed by an extension extending into the housing, the pushbutton being arranged, when an external force is applied to the pushbutton, to be moved relative to the housing between a first pushbutton active position in which the first conductive way is established and a second pushbutton active position in which the second conductive way is established.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: February 14, 2012
    Assignee: CoActive Technologies, LLC
    Inventor: Frank Mark Domzalski
  • Patent number: 6717084
    Abstract: A contact switch aims to reduce damages caused by electro-static discharge and facilitate depressing operation. It includes a casing which has a housing compartment for holding a first contact leg. The first contact leg has a first anchor flange and a second anchor flange projecting in the direction of a depressing opening. A micro mechanism is located at a lower position to increase the electro-static discharge. Due to the lower position of the micro mechanism, a retaining section may be formed by extension to space from the first anchor flange to form a depressing space so that a pushbutton may be moved therein without skewing to establish secured electric connection of the contact switch.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: April 6, 2004
    Assignee: Zippy Technology Corp.
    Inventor: Wen-Hsiang Lu
  • Patent number: 6255611
    Abstract: A switch for selectively supplying power or signals from a fixed first conductive pin to fixed second and third conductive pins includes a housing, a pushbutton unit including a tappet situated in the housing, a conductive unit including the first, second, and third conductive pins, and a switching unit including a conductive sway element for respectively selectively connecting the first conductive pin to either the second or the third conductive pin. The switching unit also includes an elastic element coupled at a first end with the tappet and at a second end the sway element such that when the first end of the elastic clement is in a first position, said elastic element causes the sway element to connect said first and third conductive pins, and when the first end of the elastic element is moved past a critical line to a second position, the elastic element causes the sway element to also move past the critical line and connect the first and second conductive pins.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: July 3, 2001
    Assignee: Shin Jiuh Corp.
    Inventor: Chin-Wen Chou
  • Patent number: 6201201
    Abstract: An electrical switch for switching on and off an electrical appliance such as a light bulb. The switch includes a body, a fixed contact and a movable contact, an actuator supported by the body for pivotal movement, causing movement of the movable contact between a switched-on position and a switched-off position, and an internal spring acting upon the actuator. The spring extends generally in-line with the actuator, in compression, such that the actuator and spring are pivotable rapidly and simultaneously in opposite directions through an over-centre action about an unstable central position. The body may include a lamp socket for receiving the light bulb.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: March 13, 2001
    Inventor: Chi Man Wu
  • Patent number: 5871087
    Abstract: A common conductor assembly is employed in a contact switch and includes a mounting plate, a pivotally movable member and a tension spring. The mounting plate has an elongated flat portion with first and second vertical edges, and first and second end plate portions extending integrally and transversely from a respective one of the first and second vertical edges in a same direction. The first end plate portion has an outward face formed with an engaging groove that is perpendicular to the vertical edges of the elongated flat portion. The second end plate portion has a spring mounting neck formed thereat. A conducting leg plate portion extends downwardly and integrally from the second vertical edge of the elongated flat portion.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: February 16, 1999
    Assignee: Shin Jiuh Corp.
    Inventor: Su Su
  • Patent number: 5631455
    Abstract: A tilt responsive switch supported on a hinged structure such as a trunk lid, door or the like includes an oscillating mass or pendulum rotatingly held by a bearing structure located within the switch housing and a pair or electrical terminals electrically connected by a movable contact mechanism. The pendulum effectively controls the motion of the movable contact mechanism. When the electrical terminals are connected by the movable contact mechanism, the pendulum abuts against a first internal switch housing limit bumper. When the pendulum abuts against a second switch housing limit bumper, the movable contact mechanism is disconnected from the electrical terminals.
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: May 20, 1997
    Inventor: Richard A. Stenta
  • Patent number: 5565666
    Abstract: A switch for interrupting an electrical circuit in response to a mechanical interaction, such as an overpressure or underpressure condition. The switch includes an actuation arm electrically connected to a common terminal. The actuation arm is moveable between a first position and a second position in response to the mechanical condition. The switch further includes an M-blade operatively connected to the actuation arm. The M-blade levers from a first configuration to a second configuration when the actuation arm moves from the first position to the second position. The M-blade completes the electrical circuit in the first configuration and interrupts the electrical circuit in the second configuration. The switch further includes a reset actuator disposed to engage the M-blade in response to a reset actuation. The M-blade levers from the second configuration to the first configuration when the reset actuator engages the M-blade and the actuation arm is not in the second position.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: October 15, 1996
    Assignee: Johnson Service Company
    Inventor: Thomas O. Kautz
  • Patent number: 5432311
    Abstract: A common conducting unit for a contact switch includes a mounting plate that has an elongated flat portion with two parallel end edges, and first and second end plate portions extend integrally and perpendicularly from a respective one of the end edges in the same direction. The first end plate portion has an engaging groove formed therein and extends parallel to the end edges of the flat portion. A spring mounting portion extends integrally and perpendicularly from an end edge of the second end plate portion. A through-opening extends from a position adjacent to the end edge of the first end plate portion to a position adjacent to the end edge of the second end plate portion.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: July 11, 1995
    Assignee: Shin Jiuh Corp.
    Inventor: Ching-Chuan Lin
  • Patent number: 5239151
    Abstract: The invention relates to a leaf switch having a scroll spring (6) which can be hooked between a switching are elongate windows which extend in the transverse direction and into which centrally projecting tongues (3a, 2a) of the switching tongue (3) and of the spring lever (2) engage. In order to avoid an unintentional unhooking of the scroll spring (6), there is a deformation projecting beyond the tongue surface at the front section of at least one of the two tongues (3a, 2a). The said deformation can be constructed as an embossed hollow projection or as laterally bent-over tongue legs.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: August 24, 1993
    Assignee: Marquardt GmbH
    Inventors: Albert King, Guenther Marquardt
  • Patent number: 5171945
    Abstract: A contact switch includes a casing, and a first, a second, and a third conductor mounted to the casing. Each of the first, second and third conductors has a leg portion extending downward and out of the casing. A spring mounting plate member extends from the leg portion of the first conductor inside the casing and has an upward end flange extending from one end of the mounting plate member. The mounting plate member has an opening and a top end portion provided with a gap to access the opening. A spring engaging member projects upward from the mounting plate member and is spaced from the end flange. The spring engaging member is provided with a pair of oppositely disposed notches. A movable contact arm has one end abutting the end flange and is turnable about the point of contact between the movable contact arm and the end flange. A helical spring member has a curved end attached to the spring engaging member at the notches thereof.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: December 15, 1992
    Assignee: Shin Juich Corp.
    Inventor: Su Su
  • Patent number: 5016140
    Abstract: For the purpose of mounting a switch on a circuit board and of actuating the switch, it is proposed that the biassing spring biassing the wiper into a first above dead-center position be pivoted at the same main mounting part on which the wiper is supported, that a rod be arranged to pass through the circuit board in a direction perpendicular to the direction of the wiper movement, and that the rod be seated in such a manner that it comes to bear upon the central area of the biassing spring so as to displace the latter relative to the pivot point of the spring on the wiper in such a manner that the wiper is moved into a second switching position for the time during which such action persists.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: May 14, 1991
    Assignee: BSG-Schalttechnik GmbH & Co. KG
    Inventors: Fritz Prestel, Martin Lohner
  • Patent number: 4929808
    Abstract: A precision switch and a switch blade/contact formed from uniform thickness sheet stock bent into U-shaped form wherein the edge surfaces after bending become the movable contacts of the high performance rugged tiny subminiature switch. The switch per se utilizes a configuration of pivotal rigid legs of the U-shaped blade/contact arranged to be spaced apart to maximum extent to allow a large diameter long coil spring located between the legs to be used for giving the blade/contact means precision high contact force operating characteristics which will withstand high G forces and will carry relatively large currents given the absolute size of the switch.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: May 29, 1990
    Assignee: Otto Engineering, Inc.
    Inventors: John O. Roeser, Bruce L. Graham
  • Patent number: 4908485
    Abstract: A switch in which a switch unit is constituted by situating the free end of a first movable member disposed with a contact between stationary contacts opposing to each other along the vertical direction, while engaging the other end of the movable member to a fixed portion, pivoting one end of a second movable member to the free end of the first movable member while engaging a spring to the other end of the s econd movable member, thereby biasing the contact of the first movable member to one of the stationary contacts, and setting the other end of the second movable member to a switch operation portion, as well as a switch wherein a housing, which enhouses a push button unit containing an illumination unit, a socket unit to be connected to the illumination unit and a plunger to be connected to the push button switch, contains to secure the switch mechanism at the lower opening thereof and the lower end of the plunger is disposed to the switch operation portion.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: March 13, 1990
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Sueaki Honda, Mitsuji Hayashi, Yasuhiro Kiyono, Takashi Niwa, Tomohiko Hayakawa
  • Patent number: 4902863
    Abstract: A switch is disclosed having a movable piece with a movable contact and a movable plate coil, a fixed terminal provided with a fixed contact facing the movable contact, a movable coil spring with an end being fixed at a standing piece of a common terminal, wherein the other end of the coil spring is coupled to the end of a movable piece, and wherein the movable plate coil is biased by the movable coil spring with one end of the movable plate coil swingably held by a holding piece of the common terminal, and a push-button for pressing the upper portion of the movable coil. The switch has an actuator having a supporting member which rotatably engages with the case, wherein the supporting member is formed in a plane generally perpendicular to a rotary shaft of the actuator.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: February 20, 1990
    Assignee: Omron Tateisi Electronics Co.
    Inventor: Yasumichi Fukuma
  • Patent number: 4877930
    Abstract: A sealed push-button switch which includes a switching mechanism including a terminal, a case including a space for housing the switching mechanism, and a base which is fixed to the case. A frame for housing the terminal is fixed to the base, and a melted resin material is injected into the frame and set to fix the terminal. When the melted resin is injected into the frame, the air in the case is heated and made to expand by the resin. However, the expanded air leaks out through an air passage which is formed through the case of the base. Air bubbles are accordingly prevented from developing in the resin.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: October 31, 1989
    Assignee: Omron Tateisi Electronics Co.
    Inventor: Yasumichi Fukuma
  • Patent number: 4851623
    Abstract: A push-button switch for turning on and off of a switch mechanism accommodated at one side in a housing through a plunger accommodated at the other side in the housing and moved in association with the pressure application thereto, wherein a partition wall is formed between said plunger and said switch mechanism so as to divide the interior of said housing into a plunger chamber and a switch mechanism chamber.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: July 25, 1989
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Sueaki Honda, Mitsuji Hayashi, Takashi Niwa, Akihiko Hayakawa, Hideyuki Bingo