Cam Actuated Contact Patents (Class 200/542)
  • Patent number: 11337326
    Abstract: An apparatus for preventing over-discharging according to various embodiments of the present invention may comprise: a housing including a first opening; a first electronic component disposed inside the housing; a second electronic component electrically connected to the first electronic component; and a switch for electrically connecting or disconnecting the first electronic component and the second electronic component through an external force by a pin inserted through the first opening. In addition, various embodiments may be possible.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: May 17, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Woo Lee, Sung-Hoon Moon
  • Patent number: 7474179
    Abstract: A contact spring assembly is provided for an electrical switching apparatus including a movable contact assembly and a stationary contact assembly having stationary electrical contacts. The movable contact assembly includes a carrier assembly, and movable contact arms pivotably coupled to the carrier assembly and carrying movable electrical contacts. The contact spring assembly includes a first contact spring housing member, a second contact spring housing member coupled to and disposed opposite from the first contact spring housing member, a spring guide disposed between and coupled to at least one of the first and second contact spring housing members and including spring holes, springs received in the spring holes, and sliders coupled to the springs. The springs and sliders individually bias the movable contact arms and movable electrical contacts toward engagement with corresponding stationary electrical contacts. A movable contact assembly and an electrical switching apparatus are also disclosed.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: January 6, 2009
    Assignee: Eaton Corportion
    Inventors: Nathan J. Weister, William C. Pollitt, John J. Shea, Douglas C. Marks
  • Patent number: 7323646
    Abstract: A hand operable switch includes an operating knob that is movable longitudinally or rotationally about a longitudinal axis of the hand operable switch. The operating knob is accessible from any circumferential location of the hand operable switch. A housing includes switching elements wherein movement of the operating knob moves an activation rod relevant to the switching elements for activating a switching element that corresponds to movement of a controlled device. A converter converts the hand operable switch into a foot operable switch.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: January 29, 2008
    Assignee: Conntrol International, Inc.
    Inventor: Ronald J. Braaten
  • Patent number: 7302758
    Abstract: There is disclosed a method for manufacturing and mounting electric contacts for control members of small dimensions, particularly for control members used in the horological field.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: December 4, 2007
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Laurent Kaelin, Yannick Hunziker, Baptist Wyssbrod
  • Patent number: 7057129
    Abstract: The present invention relates to a multi-way synchronous switcher. The multi-way synchronous switcher comprises a contacting tongue unit and a cam, the contacting tongue unit comprises an upper contacting tongue unit, an intermediate contacting tongue unit and a lower contacting tongue unit which are mounted in sequence; the lower end of the cam has a shape of step provided with several step stages; the first slider being able to move up and down is provided between the cam and the intermediate contacting tongue unit; the lower end of the first slider is connected to an elastic mechanism which can actuate the intermediate contacting tongue unit to move up and down.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: June 6, 2006
    Assignee: Shanghai Guangwei Electric & Tools Factory
    Inventors: Yeping Fan, Wenxin Zhang
  • Patent number: 6803531
    Abstract: The electrical turn/pull switch for vehicle lighting has an operating part (14) that is mounted in a switch housing (12) so as to be rotatable as well as axially movable. The movable contact elements (22, 24, 26) of a contact carrier (20) interact with fixed contact elements (30). The contact elements for the turn switch function (22) and for the axial switch function (24, 26) are integrated on the contact carrier (20). An actuation part (16) entrained by the operating part (14) has cams and/or ramps (18) that engage the movable contact elements (24, 26) and actuate them.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: October 12, 2004
    Assignee: TRW Automotive Electronics & Components GmbH & Co. KG
    Inventors: Klaus Müller, Jürgen Girke
  • Patent number: 6281482
    Abstract: An electrical switch including a body, fixed and movable contacts in the body, a principal switching member supported by the body for movement between ON and OFF positions, and a subsidiary switching member supported by the principal switching member for movement in directions different from directions of movement of the principal switching member. The principal switching member has an inner part providing a switching profile to operate the movable contacts with respect to the fixed contacts for switching. The subsidiary switching member has an inner part positioned at the switching profile for changing the switching profile while the principal switching member is in the ON position. The switch may be used to control the operation of a hair dryer to provide, in particular, a COOL shot by operation of the subsidiary switching member.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: August 28, 2001
    Assignee: Defond Manufacturing Limited
    Inventor: Raymond Wai Hang Chu
  • Patent number: 5725088
    Abstract: A stationary terminal 12 and a common terminal 13 are provided on a bottom of an insulating case 11. A pivot 14a is provided on an upper end of common terminal 13. A change-over plate 14 is rotatable about and brought into contact with the pivot 14a. A projection 16a, provided under slider 16, is brought into contact with and slidable along a sliding surface 14g of change-over plate 14 at a position lower than the pivot 14a. Change-over plate 14 causes a seesaw movement about the pivot 14a, and quickly accomplishes the switching movement regardless of the shifting speed of slider 16. Thus, it becomes possible to provide a switch which is highly reliable and free from burnout and welding of the contacts.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: March 10, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Mitsuo Aimi
  • Patent number: 5620086
    Abstract: A low profile, push-pull, jumper switch that relies on movement of the switch housing to make and break the connection between two contact members mounted on the housing. The only metal used are the two contact members, which are cammed into contact by movement of the housing when placed in its closed-switch position. In a preferred embodiment, the two contact members are identical and are each constituted of a one-piece U-shaped metal member, with the U-bight depending from the housing and configured to be solderable to the PCB pads or through-holes and thus being fixed. Protrusions on the contacts latch the housing in its open-switch position or closed-switch position. The switch in one embodiment lends itself to SMT applications.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: April 15, 1997
    Assignee: Autosplice Systems, Inc.
    Inventors: Giuseppe Bianca, Robert M. Bogursky
  • Patent number: 5579899
    Abstract: The present invention is a switch actuating unit having at least one electrical or electromechanical limiting position switch, actuatable by a mechanical sensing device. This unit structurally combines the mechanical sensing device and the electrical switches such that the switches are activated in at least two limiting positions by a common actuating plunger. The plunger extends from either side of the unit and actuates the switches upon engagement with a stop or flange plate defining each of the limit positions. Furthermore, the sensing device and switches are structurally combined so as to be moveable together.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: December 3, 1996
    Assignee: Mannesmann Aktiengesellschaft
    Inventor: Wolfgang Arnold
  • Patent number: 5408061
    Abstract: In the subject emergency stop switch the closing ring penetrates through a face plate, surrounds a pushbutton, and on its rear side is in communication with a control element that is provided for the guidance of a cam, preloaded via a first spring. A first plunger element, in connection with the pushbutton, includes elements for the reception of the cam and the first spring and an adaptor, superimposed on a contact block, surrounds the control element, with the first plunger element actuating, upon a force input via the pushing of the pushbutton, a contact carrier, guided by a contact block, against the resilient force provided by springs. In this manner the contact sets are opened and arched contact arms are utilized which are accessible via connecting terminals with the contact arms being pretensioned in such a manner that they close the contact upon the pushing of the pushbutton.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: April 18, 1995
    Assignee: Inventio AG
    Inventor: Adolf H. Martin
  • Patent number: 5321218
    Abstract: An electrical connector, for example a lampholder comprises an on/off switch mechanism including a push bar. The connector further comprises a locking arrangement including an interlock member which extends to the pushbar and moves into and out of cooperation with an aperture in the pushbar. When a cooperating device, for example a lamp, is inserted into the connector the interlock member moves axially into the lampholder to a position at which the pushbar is free to move between "on" and "off" positions. When no cooperating device is connected, the interlock member prevents movement of the pushbar. The pushbar and the interlock member include respective inclined surfaces arranged such that the pushbar will be moved to the "off" position when a cooperating device is removed from the connector.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: June 14, 1994
    Assignee: First Thought Development Ltd.
    Inventor: Francis Vause
  • Patent number: 5250768
    Abstract: A float switch for sensing a liquid level and switching between "on" and "off" states in response to the same. Overall, the device is carried within a hollow housing, with its movement restrained by the tethering action of a power cord. "Snap action" switching is achieved by the interaction between an actuator having camming surfaces formed on its exterior, and a spring-loaded switch mechanism. The switch mechanism includes a thin, flexible E-shaped snap member, having two legs bowed to form a leaf spring and having a bearing point located on the central leg. The actuator is carried in a tube within the housing and the switch mechanism is positioned adjacent the actuator's path of travel, so that a camming surface of the actuator can make contact with the bearing point. As the water level rises, an increasing proportion of the actuator's weight is carried by the bearing point, until the vertical component of the actuator weight exceeds the spring resistance of the snap member.
    Type: Grant
    Filed: January 17, 1992
    Date of Patent: October 5, 1993
    Assignee: Johnson Service Company
    Inventor: Robert A. Van Fossen
  • Patent number: 4939329
    Abstract: A roller activated switch with an unlimited number of triggering points, a preferred embodiment featuring linear activation by a rod upon the roller. The switch unit receives a moveable member upon the roller in its housing. The moveable member rolls a spring-biased roller to an off center position, thus activating or deactivating contacts upon any movement of the moveable member beyond a small increment. The switch rapidly responds to any reversing movement of the moveable member upon the roller no matter what absolute position the moveable member is in, at the time, thus having an unlimited number of changeable triggering points independent of contact pressure and having an overtravel limited only by the length of the moveable member. This feature results in the switch having the ability to establish its own triggering points. Thus, absolute triggering becomes automatic.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: July 3, 1990
    Inventor: Norman H. Dankert