Reversing Patents (Class 200/1V)
  • Patent number: 6144122
    Abstract: A switch assembly has a reversible switch with an activation member, electronics, and a plurality of contacts to couple the electronics with a power source. A connector assembly is coupled with the switch assembly contacts. The connector assembly includes a first one-piece connector having a circuit portion coupled with a plurality of contacts. Also, the first connector includes a terminal portion continuous with the circuit portion and connected directly with a positive terminal of the power source. A second one-piece connector has a circuit portion coupled with a second plurality of contacts. The second connector also includes a terminal portion continuous with the circuit portion and directly coupled with a negative terminal of a power source.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: November 7, 2000
    Assignee: Black & Decker Inc.
    Inventors: Kevin W. Covell, Michael R. Sell
  • Patent number: 6121557
    Abstract: The invention relates to a switch comprising a carrier which is manufactured substantially from plastic and in which fixed contacts are arranged, and a part which is movable relative to the carrier and in which movable contacts are arranged, wherein the fixed contacts are enclosed by plastic on at least a part of all their sides, so that the fixed contacts are fixed in plastic. According to a first preferred embodiment at least one plastic element extends at least on a first side of the fixed contacts, which plastic element leaves clear a part of the surface on the first side of the fixed contacts. Sufficient fixation is herein obtained by the plastic element, while it will be apparent that a contact face of the contacts must remain free in order to be able to function as a contact.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: September 19, 2000
    Assignee: Capax B.V.
    Inventor: Koop L. L. Warringa
  • Patent number: 5955802
    Abstract: A power tool has a mechanism to reverse a motor. The mechanism includes a first member secured with the motor surrounding the motor commutator. A pair of electrical contacts are supported in the first member. A second member is rotatable on the fist member. The second member carries a pair of brush holders which include electrical contacts. As the second member is rotated in the first member, the electrical contacts of the brush holders, as well as the electrical contacts in the first member, electrically couple with one another from a first position to a second position which relates to a forward and reverse direction of the motor. A lever moves the second member between its first and second positions.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: September 21, 1999
    Assignee: Black & Decker Inc.
    Inventors: Alvydas P. Karasa, Thomas J. Howard, Jr.
  • Patent number: 5936213
    Abstract: An electric switch for use in a five-pole isolating switch used as a phase inverter has a fixed contact and a mobile contact cooperating with the fixed contact to open or close an electrical line. The mobile contact is moved in a longitudinal direction by an articulated pair of levers. An isolating switch used as a phase inverter having five switches comprises a single three-position actuator for maneuvering the mobile contacts through a linkage.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: August 10, 1999
    Assignee: Gec Alsthom T & D SA
    Inventors: Fran.cedilla.ois Biquez, Jean-Marc Willieme
  • Patent number: 5614701
    Abstract: A control switch for an electric winch includes a handle, a set of forward and reverse push button switches and a switch box. The switch box includes a top cover and a bottom cover. The top cover is provided with a set of polarize conducting plates for DC voltage and another set of polarized conducting plates for motor wiring. The bottom cover is provided with two grooves for holding two sliding blocks, respectively. Each of the two sliding blocks is provided with conducting wipers and springs. The movement of the sliding blocks corresponds to the pushing of the forward button or the reverse button. Thus when one of the buttons is pushed, a circuit connection inside of the switch box is changed, providing control of the coiling, uncoiling and braking of a winch cable.
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: March 25, 1997
    Inventor: Michael Hung
  • Patent number: 5349143
    Abstract: A reversible electric switch has movable contacts on opposite ends of a rotor adapted for interengagement with diametrically disposed pairs of stationary contacts. Intermittency or rocking of the movable contacts with respect to the stationary contacts is eliminated by extending drive pins from the rotor into the slot provided within the contact face of the movable contact, such pins passing only partially through the thickness of such contact face. Accordingly, the force applied to the movable contacts to achieve rotation thereof is substantially at the interface between the stationary and movable contacts, substantially eliminating any force couple or moment thus precluding any rocking of the movable contact upon the rotor or other relative movement between the two.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: September 20, 1994
    Assignee: Lucerne Products, Inc.
    Inventor: John M. Houser
  • Patent number: 5329163
    Abstract: The present invention relates to an auto-switch which is used for a control circuit of a power window for moving automobile window glass up and down using an electric window motor, and has a manual/automatic contact, wherein the auto-switch is operably by a single operating knob. In the auto-state, the auto-switch can mechanically retain the manual/automatic contact at a closed state, and can always reset the operating knob to the neutral position.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: July 12, 1994
    Assignee: Toyo Denso Kabushiki Kaisha
    Inventors: Hiroshi Satoh, Noboru Kamiya, Toru Tanaka, Sadayoshi Oshima, Minoru Mohri
  • Patent number: 5296747
    Abstract: A reversing switch and more particularly a diaphragm operated electrical polarity reversing switch which has general utility but in the application the reversing switch is disclosed for use in combination with a vehicle mounted spray device including a discharge nozzle which may be used for applying chemicals, liquid fertilizers and other liquids such as when applying such materials alongside of roadways to effectively apply liquid throughout the width of the road right-of-way in which spray nozzles are mounted adjustably on a pivotal arm-type support assembly at the right front of a vehicle and a control arrangement is oriented in the cab of the vehicle to enable the vehicle operator to control the spray apparatus.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: March 22, 1994
    Inventors: Benjamin F. Rabitsch, Douglas G. Rabitsch
  • Patent number: 5287005
    Abstract: An actuator control device used for, for instance, dampers of automobile air conditioners including first and second fixed contacts which are discontinuous on a path along which a movable contact travels and third and fourth fixed contacts which are also in a discontinuous fashion on the movable contact's path. A motor, that is, an actuator, is connected to a battery and rotated forward when the movable contact is in contact with the first contact and is rotated reversely when the movable contact is in contact with the third contact, thus opening and closing the damper. A first diode is connected to the second contact so that when the damper, which is rotated in a linkage with the movable contact, is opened and the movable contact comes into contact with the second contact, the first diode cuts off the current to the motor, thus completing the damper opening action.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: February 15, 1994
    Assignee: Harada Kogyo Kabushiki Kaisha
    Inventor: Masaki Shinkawa
  • Patent number: 5216212
    Abstract: A combination disconnect/reversing switch for use in explosive environments for isolating an electrical power source from a three-phase motor or for reversing the operation of a motor. The disconnect/reversing switch comprises a handle, mounting plate, front insulator plate, mounting flange, front contact holder, moveable contact holder, rear contact holder, and rear contact retainer. The handle actuates the moveable contact holder between open circuit, or load-grounded, (or reverse in the case of a reversing switch) and closed (or forward) positions. The moveable contact holder contains three electrically conductive pin members which engage corresponding electrical contacts on either the front contact holder, corresponding to the open (or reverse in the case of a reversing switch) position, or rear contact holder, corresponding to the closed (or forward) position.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: June 1, 1993
    Assignee: Line Power Manufacturing Corporation
    Inventors: Victor Golowash, Wayne S. Rial
  • Patent number: 5212433
    Abstract: A robot emergency stop circuit for bringing the robot to an emergency stop through a deadman switch installed on a teaching control device while the robot is being taught behavior patterns through the teaching control device. The deadman switch (DM1) causes the robot to operate according to commands received from the teaching control device as long as a pressure applied by a finger remains within a specified range. When the finger pressure becomes lower or higher than the specified range, a magnet switch in a servo amplifier (2) is turned OFF, bringing the robot to an emergency stop. Accordingly, if the robot should unexpectedly move, causing an operator to take an unintended action such as flinging the teaching control device away or holding it tightly, and thus apply an abnormal pressure to the deadman switch (DM1), then the contact point of the deadman switch (DM1) is shifted from the middle point of three contact points, thus turning the switch OFF.
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: May 18, 1993
    Assignee: Fanuc Ltd.
    Inventor: Shimoda Yasuyuki
  • Patent number: 5173591
    Abstract: An electric gearshift device (10) for an electric car for children has a lever (12) which can be operated manually to give different electrical connections between an electric motor and sets of batteries, so as to achieve different running conditions. In particular, the device (10) comprises a first two-speed electric selector switch (16) and a second electric reversing switch (15). The lever (12) is movable from a first to a second position to control the movement of the first switch (16), in the second position acting on the first switch (16) with elastically yieldable thrust surfaces (24) to enable the lever (12) to pass said second control position and reach a third position in which it actuates the second switch (15).
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: December 22, 1992
    Assignee: Peg Perego Pines S.p.A.
    Inventor: Gianluca Perego
  • Patent number: 5089729
    Abstract: A portable, reversibly driven power tool (11) comprises a reversible motor and an assembly (17) for electrically switching the direction of motor rotation and/or for shifting the commutator brushes (99, 101) for optimizing motor performance in both the forward and reverse directions. Assembly (17) includes a reversing switch (56) and an actuator (19) which is movable between forward and reverse positions for reversing the connections of the reversing switch (56) to reverse the direction of motor rotation. Actuator (19) includes (a) a sleeve (81) connected to the reversing (56) switch and surrounding the motor stator (43) to guide movement of the actuator (19) between the forward and reverse positions and (b) a manual control tab (85) ergonomically located in the motor housing (23) slightly forward of a manual power switch (21) in the tool handle (35).
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: February 18, 1992
    Assignee: Black & Decker Inc.
    Inventor: Robert G. Moores, Jr.
  • Patent number: 5089715
    Abstract: A switch device for making a motor or the like alternate between forward reverse rotation, having a pair of switches and a control circuit. When either one of the switches is activated, the control circuit activates the motor in one or the other direction depending upon which switch is activated. When both switches are activated, the control circuit activates the motor until a desired action or task is completed. Therefore, when the present invention is used in a window glass lifting apparatus of an automobile, three kinds of operations of the window glass can be performed by using a pair of switches: partial upward and partial downward movement and continuous movement down to the fully open state of the window glass.
    Type: Grant
    Filed: April 18, 1990
    Date of Patent: February 18, 1992
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventor: Sadao Kokubu
  • Patent number: 5084598
    Abstract: An electric switch for a power tool, comprising: a slider slidably received in a switch casing along a longitudinal direction, a handle provided in the grip of the power tool for manually actuating the slider along the longitudinal direction; a plurality of fixed contact pieces arranged in an internal bottom surface of the switch casing and provided with contact surfaces located substantially in a same plane; and a plurality of moveable contact pieces arranged in the bottom surface of the slider and urged toward the fixed contact pieces by spring members so as to selectively contact at least some of the contact surfaces of the fixed contact pieces. The contact portions of this switch achieve various conductive states by planar arrangement and movement of the contact pieces, the component parts can be fitted into a small switch casing, particularly having a small height.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: January 28, 1992
    Assignee: Omron Corporation
    Inventors: Kunio Nagata, Takezo Sano, Saburou Morita, Shoji Kazusaka, Junzo Asa, Satoshi Nozoe
  • Patent number: 5051547
    Abstract: A switch mechanism for an electric power tool, comprising: a linear slider received in a switch case so as to be moved manually in a first direction against the biasing force of a return spring; an actuating pin carried by the linear slider so as to be moveable along a second direction perpendicular to the first direction; a pair of direction converting levers crossed in the manner of a pair of scissors by a pivot pin mounted on the switch case, the actuating pin being located adjacent to first ends of the direction converting levers; a pair of lateral sliders engaged by second ends of the direction converting levers and allowed to move in the second direction; a first contact set including contacts carried by the linear slider and the wall surface of the switch case for mutual cooperation as the linear slider is moved in the first direction; and a second contact set including contacts carried by the lateral sliders and the wall surface of the switch case for mutual cooperation as the lateral sliders are move
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: September 24, 1991
    Assignee: Omron Corporation
    Inventors: Kunio Nagata, Masatsugu Yamashita
  • Patent number: 4904833
    Abstract: A switch device comprising an operating knob adapted to be selectively operated according to an operational amount and permit an automatic restoring condition and an automatic locking condition, a first selector member interlocking with the operating knob for effecting a switching operation of contacts, a second selector member engageable with the first selector member for selectively effecting the automatic restoring condition and the automatic locking condition of the operating knob, a switch wafer provided in opposed relationship to the first and second selector members, a locking member adapted to restrict movement of the second selector member, and a resilient member for biasing the locking member toward the second selector member. With this structure, the automatic locking condition may be maintained without the use of a solenoid, thereby reducing the power consumption and heat generation.
    Type: Grant
    Filed: August 23, 1988
    Date of Patent: February 27, 1990
    Assignee: Alps Electric Co., Ltd.
    Inventors: Hiroyuki Sato, Yujiro Shimoyama
  • Patent number: 4903318
    Abstract: An electric switch system for a DC motor powered power tool, comprising: a moveable block which is adapted to be manually displaced between a first position and a second position for speed control of the motor; a fixed block arranged adjacent to the first moveable block; a manual selection lever pivotally attached to the fixed block and adapted to be manually rotated from a neutral middle position to either side for the selection of the rotational direction of the motor; a cam structure for permitting the manual rotation of the manual selection lever in either direction away from the middle neutral position only when the moveable block is at the first position and keeping the angularly displaced state of the manual selection lever when the moveable block is displaced away from the first position. Thus, the selection of the rotational direction of the motor and the speed control of the motor can be accomplished as a continuous single operation, and the convenience of the power tool is improved.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: February 20, 1990
    Assignee: Omron Tateisi Electronics Co.
    Inventor: Kunio Nagata
  • Patent number: 4894492
    Abstract: Rotary switch providing selectable forward and reverse motor speeds responsive to a single control. A rotatable shaft moves two power source contacts interdependently between a motor terminal and a bus, for two polarity conditions, or holds the contacts in a power off condition. Three concentric coplanar tracks, radially spaced and centered about the shaft axis, each comprises conductive and non-conductive arcuate segments. At least one track has a segment powered by connection to the bus. Each conductive segment of a non-powered track is connected to a switch output. The shaft carries two arcuately spaced wipers, each providing electrical contacts for connecting conductive segments of a distinct pair of tracks including a powered track. Segments, wipers, and contacts are mutually spaced to successively connect distinct sets of segments as the shaft is rotated, to provide at the switch outputs distinct switch conditions including an off condition.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: January 16, 1990
    Inventor: Nicholas R. Palumbo
  • Patent number: 4864083
    Abstract: In accordance with the present invention, there is provided an electric reversing switch comprising an insulated base having an elongated cavity defined therein. An elongated insulation member is provided for oscillatory motion about an axis through the cavity through an angular interval between a first and second position. Conductive bridging elements are provided on the ends of the insulation member and biased outwardly from the insulation member along the axis thereof. A first pair comprising first and second fixed contacts is supported in the base, each including a contact portion within the cavity and being symmetrical disposed relative to the axis through the cavity.
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: September 5, 1989
    Assignee: Lucerne Products, Inc.
    Inventor: Robert W. Bittel
  • Patent number: 4847451
    Abstract: An electric power tool includes an electric motor. A switch assembly for this power tool includes a device for controlling the on/off operation of the motor, actuated to and fro along a first actuation line, and a device for controlling the forward/reverse operation of the motor, actuated to and fro along a second actuation line. The first and the second actuation line do not intersect one another. This confers good operability upon the switch and upon the power tool as a whole. More particularly, the first actuation line should be skew to the second actuation line, even more particularly substantially skew perpendicular to it; or, alternatively, the first actuation line may be substantially parallel to the second actuation line and somewhat displaced therefrom.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: July 11, 1989
    Assignee: Omron Tateisi Electronics Co.
    Inventor: Kunio Nagata
  • Patent number: 4822958
    Abstract: A switch for controlling electric D.C., especially for a power tool held by hand during operation, for heavy duty work, preferably from an automobile battery, of 8 to 40 volts and sufficient amperage for at least about 180 watt-input into the idling tool motor, comprises a base mountable on the motor rearwall, fixed contactors on the base, a supporting member bearing shiftable contactor elements, a first engaging member on the base, another engaging member on the supporting member and pivotably engaged by the first engaging member, a resilient organ urging the two engaging members into engagement, and preferably enhancing contact pressure between the fixed and shiftable contactors when a manual actuator has pivoted the supporting member from neutral into an activating position. A restoring spring can return the supporting member automatically to neutral.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: April 18, 1989
    Inventor: Christiaan G. M. Van Laere
  • Patent number: 4808775
    Abstract: In a reversing switch comprising a substantially V-shaped swinging contact plate provided with a normally open movable contact and a normally closed movable contact, a pair of fixed contacts provided in opposed relationship to the normally open movable contact and the normally closed movable contact, an intermediate supporting member for supporting a normally open contact side of a central bent portion of the swinging contact plate, and a knob adapted to be swung and slid on the swinging contact plate; the improvement is characterized in that the swinging contact plate is formed of an elastic material, and that the knob is provided at its end portion with a pressing member adapted to elastically deform the swinging contact plate. With this arrangement, the swinging contact plate is elastically deformed by the pressing member in association with the swinging motion of the knob, thereby wiping off a bad conductor present between the movable contact and the fixed contact.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: February 28, 1989
    Assignee: Toyo Denso Kabushiki Kaisha
    Inventors: Hiroshi Satoh, Minoru Mohri
  • Patent number: 4794210
    Abstract: A switch for controlling the current to an electric motor is disclosed. The switch includes first and second parts which are relatively rotatable about a first axis. The switch also includes contacts which are actuatable to permit electrical power to be applied to the motor in a direction depending upon the direction of relative rotation between the first and second parts. A portion of the contacts are carried by a rocker arm pivotally mounted against one of the parts with cooperating contacts mounted to the one part. Actuation of the contacts is controlled by an associated pivoting member located radially outward of the first axis and pivotable about a second axis, transversely to the first axis. The pivoting member carries a roller slidably mounted to an end thereof and resiliently biased against the rocker arm. The roller is of sufficient diameter to contact the rocker arm at two locations when the switch is in a neutral condition with all of the electrical contacts open.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: December 27, 1988
    Assignee: TRW Inc.
    Inventors: Frederick A. Hammerle, Richard Wiciel, James A. Mallett
  • Patent number: 4780580
    Abstract: A switch adapted for an automotive power window comprises a housing, fixed contacts connected together by a crank-shaped connector member, barriers that hold the connector member therebetween, and connecting, fixed terminals disposed on the bottom of the wafer. When selected ones of energizing fixed terminals are connected together, the switch is adapted to be disposed around the driver's seat of an automobile. When the connecting member is omitted, the switch is adapted to be disposed around other passenger's seat.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: October 25, 1988
    Assignee: ALPS Electric Co. Ltd.
    Inventor: Kenji Sawada
  • Patent number: 4772765
    Abstract: A combined on/off and reversing switch, particularly for an electric screwdriver having a reversible motor, has a switch plate which can be rotatably mounted on an end of the motor. Terminals of the motor extend through the switch plate and are selectively contacted by ends of two resiliently flexible contact strips carried by the switch plate. An actuating member is moved along a selected path to rotate the switch plate to select "forward" and "reverse", and then depressed inwardly to flex an end of the appropriate contact strip to complete energization of the motor. The contact strips resiliently bias the actuating member outwardly to switch the motor "off" when the actuating member is released. Switching the motor "on" from a neutral "off" position of the switch involves a two part movement of the actuating member. The switch is of simple and compact construction.
    Type: Grant
    Filed: February 12, 1987
    Date of Patent: September 20, 1988
    Assignee: Black & Decker Inc.
    Inventors: Stanley A. Markle, Keith Moore
  • Patent number: 4748353
    Abstract: A hand machine tool for clockwise and counterclockwise rotation includes a universal electric motor and a reversing switch. The reversing switch is comprised of a contact plate and a contact holder both provided with coupling elements for coupling the contact plate and the contact holder for limited relative rotation. The coupling elements of the contact plate and the contact holder enclose a dust-sealed chamber in which contacts are accommodated.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: May 31, 1988
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Klingenstein, Werner Rieker, Gunter Schaal
  • Patent number: 4734547
    Abstract: Disclosed is a reversing speed control switch. This control switch has a trigger arranged on a casing, a movable element which is moved upon operation of the trigger, a power switch for switching, on and off, a power source to be interlocked with the operation of the movable element, a reversing switch, connected to the switch, for switching the polarity of the power source, a reversing actuator whose shaft portion coupled to the reversing switch is located in the central portion the casing, and whose actuation portion is located outside the casing, and a speed control circuit for performing speed control, upon operation of the trigger. The movable element, the switch, and the speed control circuit are arranged around the shaft portion.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: March 29, 1988
    Assignee: Fujisoku Electric Co., Ltd.
    Inventors: Hiroyuki Arai, Touru Kasai
  • Patent number: 4678871
    Abstract: A reversing switch for use in a rechargeable hand tool, the switch being located between the battery and the electric motor and being in direct contact with both. The switch has an actuator pivotally connected to an insulating mounting support which also holds two transfer terminals, one connected to each of two terminals of the battery, and a contact carrier which is rotatably connected to the support and coupled to the actuator in order to be rotated by the pivoting of the actuator. Pivot contacts are attached to the contact carrier displaced from one another to provide a space for the parallel leads of the electric motor. Pivoting of the actuator reverses the connection of battery terminals to the motor leads and, accordingly, reverses the direction of the electric motor. The transfer terminals have recharging contacts which are accessible through ports in the housing of the hand tool to allow recharging of the battery without removing it from the rest of the tool.
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: July 7, 1987
    Assignee: Skil Corporation
    Inventor: Jun G. Wong
  • Patent number: 4654487
    Abstract: A switch block for automotive power windows has four seesaw switches and a push-button switch for breaking an electric circuit to simultaneously lock out the seesaw switches. The contact mechanisms of the seesaw switches and of the push-button switch are identical in structure so that they have an identical operating feel.
    Type: Grant
    Filed: November 5, 1985
    Date of Patent: March 31, 1987
    Assignee: Alps Electric Co., Ltd.
    Inventor: Kenji Sawada
  • Patent number: 4639558
    Abstract: A reversing switch comprises a mounting plate assembly with a hub extending forwardly through a wall of an explosion proof enclosure. A shaft is journaled for rotational and axial movement in the hub. A stationary contact assembly includes four circumferentially spaced contacts. A moveable contact assembly includes four circumferentially spaced contacts mounted on the shaft. The shaft extends through an external operator member at the forward end of the hub. The operator member is connected to the hub by a groove and flange arrangement preventing fore and aft movement but enabling rotational movement about the hub. A pair of forwardly extending side walls each with a transverse guide slot are connected to the operator member. A handle member with a pair of combined lever and cam arms is connected to the operator member and the shaft.
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: January 27, 1987
    Assignee: Service Machine Co.
    Inventor: Jennings Lycan
  • Patent number: 4618807
    Abstract: This invention pertains to a three-phase reversing contactor with fixed-mounted contact parts serving the input and the output, and a connection by contact bridges from the input to the output. A common drive mechanism is provided for all the contact bridges, and a shift mechanism to change the configuration of the contact bridges, while in the OPEN position, relative to the fixed-mounted contact parts is also provided. Through the application of the two independently movable contact bridge carriers, which by use of an auxiliary magnet can be selectively brought into functional contact with the common drive mechanism by a reversing yoke, the drive output for the auxiliary magnets can be kept low. As there is a fixed configuration of contact bridges to the fixed-mounted contact parts, the major wiring work can be performed in the shop by the use of correspondingly formed fixed-mounted contact parts.
    Type: Grant
    Filed: April 16, 1985
    Date of Patent: October 21, 1986
    Assignee: Siemens Aktiengesellschaft
    Inventors: Edgar Wiessner, Werner Harbauer, Klaus-Dieter Paul
  • Patent number: 4588910
    Abstract: In a portable electric tool, a switch arrangement comprises a trigger on/off switch having a depressable trigger and a reversing switch having an actuating lever. An interlocking arrangement, operative between the lever and the trigger, prevents actuation of the reversing switch when the trigger is depressed. The lever comprises a pivoted bell crank, one of the legs of which carries part of the interlocking arrangement, and the other leg of which extends transversely to the trigger and engages with a slide manually slidable in an orifice in a side wall of the tool's housing to effect pivoting of the lever.
    Type: Grant
    Filed: October 30, 1984
    Date of Patent: May 13, 1986
    Assignee: Black & Decker Inc.
    Inventor: Alfred Bausch
  • Patent number: 4587384
    Abstract: A sub-assembly for an electric motor, including a reversing switch comprising a brush bearing plate having a circuit pattern imbedded therein with portions of the pattern exposed as pads on one surface of the plate, an opposed cover defining, together with the plate; a chamber including the exposed pads; an actuator movable within the chamber; a plurality of bridging contacts arranged for selectively coupling pairs of the exposed pads; and springs for biasing the bridging contacts into engagement with the exposed pads. As the actuator is moved within the chamber, actuator cam portions are interposed between various bridging contacts and pads so as to provide three distinct switch positions, namely, FORWARD, NEUTRAL and REVERSE. The brush bearing plate is generally U-shaped and has opposed brushes that are inwardly biased so that the entire switch sub-assembly may be fitted partially over the comutator of the motor, thereby bringing the brushes into an operative position.
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: May 6, 1986
    Assignee: Black & Decker, Inc.
    Inventor: Michael S. Yacobi
  • Patent number: 4581499
    Abstract: A switch limit apparatus for a multiple position switch having an actuator accessible through an opening in a casing in which the switch is disposed. The switch actuator is provided with several parallel ridges spaced such that only one ridge is accessible through the opening for each switch position.
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: April 8, 1986
    Assignee: Black & Decker, Inc.
    Inventor: Walter K. Cousins
  • Patent number: 4565906
    Abstract: A switch operated by a reciprocating pin mounted to the base of an electromagnetic reciprocator, which is a motor with a coil that retrieves electricity stored in the electromagnetic field of a permanent magnet. The switch consists of a reciprocating plastic block with two adjacent parallel grooves which engage the reciprocating pin. The pin strikes a curve at the end of each groove and causes the block to reciprocate in a direction perpendicular to the direction of reciprocation of the pin. Two terminal arms mounted on the block alternately contact two pairs of terminal posts connected to the coils of electromagnets in the electromagnetic reciprocator, reversing the circuit through the coils and the polarity of the electromagnets and causing the electromagnets to alternately attract and repel the permanent magnet. The switch operates the electromagnetic reciprocator, and the electromagnetic reciprocator operates the switch.
    Type: Grant
    Filed: January 30, 1985
    Date of Patent: January 21, 1986
    Inventor: John E. Clegg
  • Patent number: 4563549
    Abstract: A reversing switch comprises a mounting plate assembly with a hub adapted to extend forwardly through a wall of an explosion proof enclosure. A shaft is journaled for both rotational and axial movement in the hub. A stationary contact assembly consists of a first set of four evenly circumferentially spaced contacts, each with a connecting terminal, mounted on an insulator base. A movable contact assembly consists of a second set of four evenly circumferentially spaced contacts mounted on an electrical insulating member connected to the shaft. Adjacent pairs of the movable contacts are interconnected. The shaft has an external handle with a unique cam and rotatable eccentric pivot connection for moving the shaft axially to engage or disengage the contacts when the handle is pivoted forward and backward a half turn, and for rotating the shaft to reverse the contacts when the handle is rotated a quarter turn.
    Type: Grant
    Filed: October 18, 1984
    Date of Patent: January 7, 1986
    Assignee: Service Machine Company
    Inventor: Jennings Lycan
  • Patent number: 4558189
    Abstract: Two pairs of contact strips are mounted on the respective bridge members of an integral web portion of the molded field case of a power tool or other motor-driven device. The forward ends of the contact strips are cantilever mounted and automatically engage the respective terminals on the field, as the field is inserted into the field case and is secured therein. An annular wire harness is mounted on the rear bearing boss of the field case. Spaced contacts are carried by the wire harness and engage the respective ends of the first pair of contact strips. The respective ends of the second pair of contact strips are connected to terminals on the ends of the brush shunts. In a reversing embodiment, a third pair of contact strips is mounted on the bridge, and a rotatable reversing subassembly is mounted on the rear bearing boss in lieu of the wire harness.
    Type: Grant
    Filed: July 31, 1984
    Date of Patent: December 10, 1985
    Assignee: Black & Decker Inc.
    Inventors: John E. Dibbern, Jr., Gregory E. Moores
  • Patent number: 4544816
    Abstract: A switching arrangement for a rotating toothbrush which includes a rectangular casing accommodating the electric motor has a gravity switch provided in the housing and a switch actuated manually and provided externally on the housing. As a mercury gravity switch, a sensor is used, which consists of a tube closed at each end thereof and provided with a respective bottom portion at each end. Through each of the bottom portions at a lateral location, a conductor wire projects wherein through one of the bottom portions a further conductor wire projects whose forward portion within the tube is arranged at a distance to the wall of the tube and extends parallel to the conductor wires and leads almost to the end of the other bottom portion.
    Type: Grant
    Filed: November 10, 1983
    Date of Patent: October 1, 1985
    Inventor: Dieter Benz
  • Patent number: 4523115
    Abstract: A portable electric tool has a switching device for reversing the direction of the current through the motor to reverse the motor. The switching device comprises two pairs of contacts which extend in cantilever fashion from a circuit board, a rotatable shaft having axially spaced apart terminals thereon, and the terminals being electrically insulated from the contacts by insulating collars secured to the shaft. Each collar has a window therein for access to the respective terminal, the contacts being resiliently biased against the collars with one of each pair of contacts engaging a respective terminal through the respective window in one direction of rotation of the motor and the other of each pair of contacts engaging the opposite respective terminal through the respective window in the opposite direction of rotation of the motor. A shoulder on the shaft may have flats to prevent rotation of the shaft while the trigger of a trigger-switch is actuated.
    Type: Grant
    Filed: June 19, 1984
    Date of Patent: June 11, 1985
    Assignee: Black & Decker Inc.
    Inventor: Giuseppe Cuneo
  • Patent number: 4513269
    Abstract: A contactor assembly is disclosed comprising a case having a plurality of serially and vertically sectioned pole chambers, each provided with a traveling contact and a pair of operation frames. A traveling contact bar having right and left arm portion is pivotally fixed on a support frame. The operation frames are installed at right and left positions of the traveling contact, and each frame is provided with a window and a leg portion extending from a lower surface of the frame. A pair of upper and lower contact springs are provided in the window, and the adjacent arm portion of the traveling contact extends through the window and is sandwiched by the pair of contact springs. The pair of right and left operation frames are interlockingly connected at the lower ends of both the legs. An electromagnet is connected to each leg and a return spring is provided on the lower surface of the frame.
    Type: Grant
    Filed: June 1, 1983
    Date of Patent: April 23, 1985
    Inventor: Motomu Miyamoto
  • Patent number: 4459522
    Abstract: In a portable power tool, two switches are provided in the handle for respectively effecting rotation of the electric motor in opposite directions. Each switch has a center contact movable between a rest contact and a working contact, the armature of the motor being connected between the two center contacts. Preferably, a common rocker actuates the two switches individually or jointly. In both the rest position of the two switches and in the case when both switches are jointly actuated, intentionally or unintentionally, the armature is short-circuited and braking occurs. Two platelets of electrically conductive synthetic material may advantageously be used as end stops for the switches so that the speed in either direction of rotation is controlled by the pressure of the operator's finger on the selected switch.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: July 10, 1984
    Assignee: Black & Decker Inc.
    Inventor: Siegfried Huber
  • Patent number: 4455459
    Abstract: A four-way electrical switch having a die-cast, metal housing, a set of fixed-contacts disposed in the base of said housing and a central movable-contact assembly disposed within the housing above the fixed-contacts. The die-cast housing serves as a ground contact for the switch. Various provisions are disclosed for assuring good electrical connection between the contacts. Additionally, a mechanical strain relief structure is disclosed.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: June 19, 1984
    Assignee: Chivas Products Ltd.
    Inventor: Robert J. Smith
  • Patent number: 4450323
    Abstract: A reversible switch comprises four fixed contact members mounted within a base, each having an arcuate contact jointly defining an interrupted circular wall. A cylindrical body rotatable within the wall includes a pair of contact members slidably engageable with the fixed contacts to reverse polarity of an electrical circuit when rotated between first and second positions. An eccentric pin projecting from the body through an arcuate slot formed in a cover mounted on the base rotates the body via engagement with a lever pivotably mounted on the cover. The rotatable body is selectively retained in first or second position by a spring-biased cap received in a pair of positioning holes in the cover.
    Type: Grant
    Filed: November 24, 1981
    Date of Patent: May 22, 1984
    Assignee: Hitachi Koki Company, Limited
    Inventor: Takeshi Iitsuka
  • Patent number: 4428649
    Abstract: A power mirror remote control switch includes a switch body which supports a printed circuit board and two stacked, insulated levels of conducting terminal fingers which extend over the board. A four-way position control key overhangs the terminal fingers. The control key is pressed to flex selected terminals into conductive contact with underlying portions of the printed circuit board, thereby establishing conductive connections for energizing motors which rotate or tilt at least two power mirrors. A sliding switch is provided to define which one of the two mirrors is to be moved in the direction defined by the position control key.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: January 31, 1984
    Assignee: Cherry Electrical Products Corporation
    Inventors: Robert T. Main, Maurice E. Kennedy
  • Patent number: 4396811
    Abstract: Improvement in a D.C. power reversing switch having a base having an insulator plate fast thereon and four spaced apart metal contact plates fast on the top side of the insulator plate, a manually moveable switch plate consisting of a second insulator plate and a pair of spaced apart metal jumper plates fast on the underside of the second insulator plate, a centrally disposed shaft upstanding from the base for rotatably holding the switch plate thereon, the switch having four separate contact areas thereon, the improvement comprising a clamp support fastened to the base, upstanding therefrom, extending over the switch plate and disposed above the four contact areas, and clamps operative between the support arrangement and the switch plate for pressing down thereupon at the centers of the four contact areas for forcing the jumper plates into face to face contact with the four contact plates.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: August 2, 1983
    Inventor: Peter Kljucaricek
  • Patent number: 4357502
    Abstract: Phase reversal switch apparatus for a three-phase high-current isolated phase bus circuit includes a non-reversing phase switch, and two groups of two reversing phase switches. The apparatus also includes a phase reversal mechanism having a rotatable operating shaft with a drive lever, a non-reversing lever, and two reversing levers coupled thereto. Locking and drive couplings are selectively engaged with the levers and operated by a shift actuator and a switch actuator to selectively operate the non-reversing switch and the first and second reversing switches to effect a phase sequence reversing operation in a secure and efficient manner.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: November 2, 1982
    Assignee: Westinghouse Electric Corp.
    Inventor: Henry R. Beck
  • Patent number: 4356357
    Abstract: A combination selector and directional switch for electrically operated remote control rearview mirrors in which a single control fixture allows the operator to select a right or left hand mirror and then by manipulation of a pendant, movable in two plane directions, to orient the mirror glass as desired. The linear movement of a selector lever causes rotational movement of a selector ring whereby the left or right hand mirror is connected to be controlled by the selected manipulation of the pendant.
    Type: Grant
    Filed: July 15, 1980
    Date of Patent: October 26, 1982
    Assignee: Harman International Industries, Inc.
    Inventor: Robert J. Fisher
  • Patent number: 4315113
    Abstract: A shortened control switch structure useful in electrical remote control rearview mirrors and serving a pair of remotely located reversible motors and selectively permitting either of the motors to be operated in the forward or reverse direction by movement in the switch and where the base closure of the switch supports stationary contacts in opposed paired relation and the stationary contacts are swaged into the closure and against connecting leads and where the connecting leads extend generally radially from the base closure. The switch is of the type that recenters upon release in accord with a bias applied at the contacts. The contactors are press fitted into recesses and self-seat against removal and in electrical contact with corresponding leads. The contactors are provided with annular spaced apart wedge rings and displace softer material upon entry and in firm contacting displacement of the leads.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: February 9, 1982
    Assignee: Harman International Industries, Inc.
    Inventors: Robert J. Fisher, Lawrence R. Lefever
  • Patent number: 4301378
    Abstract: A dual rate bi-directional switching system is utilized to control a radio receiver function. An actuator rotates and translates in order to sequentially actuate selected electrical switches which are coupled to a logic circuit by means of two conductors. The logic circuit establishes logic signals to control both the direction and rate of change of the function in response to the position of the actuator.
    Type: Grant
    Filed: November 29, 1979
    Date of Patent: November 17, 1981
    Assignee: Motorola, Inc.
    Inventors: Donald C. Cohlman, Daniel R. Schroeder