Hand Grip Type (e.g., Power Tool) Patents (Class 200/43.17)
  • Patent number: 11448397
    Abstract: A gas combustor includes: a housing, a storage cylinder, a fuel gas controlling device, an igniting device, a safety switch, and a combusting device. The safety switch has a fastening unit and a locking unit abutted against a locking bolt formed on a bottom surface of a press button; the fastening unit has an accommodation chamber allowing the locking unit to be accommodated, and a swing arm having a latching hook and longitudinally disposed at a front end of the accommodation chamber; the locking unit has a main body accommodated in the accommodation chamber, a longitudinal spring is disposed between the main body and the accommodation chamber, and the main body has a push button protruded from a penetrated slot longitudinally formed on a rear wall of the accommodation chamber, and a locking hook protruded towards the latching hook.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: September 20, 2022
    Assignee: ROBURN COMPANY LTD.
    Inventor: Chin-Lin Tsai
  • Patent number: 11062861
    Abstract: Safety switch for a gardening device driven by a motor. The safety switch includes a main button arrangement and a sub button arrangement which is provided onto the main button arrangement. The main button arrangement may pivot between a first position and a second position. In the first position the sub button arrangement may be provided in an arrest position and in the second position the sub button arrangement is arranged in an energize position. Further, the sub button arrangement includes biasing means by means of which biasing means the sub button arrangement is biased towards the arrest position in the first position, and by application of an external force the sub button arrangement may be moved towards a biasing force exerted by the biasing means and be slid to the energize position where the main button arrangement may activate the power means in the second position.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: July 13, 2021
    Assignee: Globe (Jiangsu) Co., Ltd.
    Inventors: Johanna Olsson, Zhigao Pu
  • Patent number: 11052526
    Abstract: A hand-held power tool device, in particular a hammer drill and/or chisel hammer device, includes at least one operating element and at least one locking unit. The at least one locking unit includes at least one locking element and at least one controllable actuator element. The at least one locking element can be moved from at least one storage position into at least one locking position, and vice versa, and locks the operating element in at least one operating state in the locking position. The at least one controllable actuator element influences motion of the locking element.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: July 6, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Brinkmann, Lars Schmid, Pascal Schmitz, Hardy Schmid, Patrick Heinen, Jan Koalick, Daniel Kuhn
  • Patent number: 11019849
    Abstract: The present disclosure provides a push-button structure. The push-button structure includes a support, a push-button, and a slide block. The push-button is connected to the support and has a push direction. The slide block is connected to the support in a sliding manner along a direction perpendicular to the push direction of the push-button, and the slide block is capable for sliding and has a locking position and an unlocking position. The push-button is provided with a first locking portion at one side facing the slide block. The slide block is provided with a second locking portion fitting the first locking portion. When the slide block slides to the locking position, the first locking portion is locked to the second locking portion. When the slide block slides to the unlocking position, the first locking portion is unlocked from the second locking portion.
    Type: Grant
    Filed: January 14, 2018
    Date of Patent: June 1, 2021
    Assignee: SHENZHEN IVPS TECHNOLOGY CO., LTD.
    Inventor: Wen Chen
  • Patent number: 9685281
    Abstract: A safety mechanism for medical treatment devices includes a switch actuator that depresses a power activation switch after movement in a first direction followed movement in a second direction. The safety mechanism thus prevents accidental or unintentional delivery of power to a heating segment of the medical treatment device.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: June 20, 2017
    Assignee: Covidien LP
    Inventors: Li Wang, Chunlang Hong, Zhen Yuan
  • Patent number: 9312080
    Abstract: A power tool includes at least one grip housing having at least one handle-shaped grip region and at least one switching unit having at least one movably mounted latch element. The at least one movably mounted latch element has a maximum width that extends over at least a major part of at least one maximum width of the at least one handle-shaped grip region of the at least one grip housing.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: April 12, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Cornelius Boeck, Daniel Barth, Joachim Schadow, Sinisa Andrasic
  • Patent number: 9162352
    Abstract: A hand-guided apparatus may include an operating lever, a switch, and an intermediate lever. The operating lever may actuate a function of the hand-guided apparatus, be constructed in an elongated manner and be pivotably attached to a housing of the apparatus. The switch actuates the function and is arranged in the housing. The intermediate lever mechanically actuates the switch. The operating lever includes a safety element enabled to be pretensioned and shifted along a longitudinal axis of the operating lever. The operating lever and the intermediate lever are enabled to be mechanically coupled by shifting the safety element into a pretensioned state to enable actuation of the switch by pivoting of the operating lever. The operating lever and the intermediate lever are enabled to be mechanically decoupled by shifting the safety element into a relaxed state to prevent actuation of the switch by pivoting of the operating lever.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: October 20, 2015
    Assignee: HUSQVARNA AB
    Inventors: Peter Rudolf, Martin Lugert, Runo Malkolmsson
  • Publication number: 20140338947
    Abstract: A machine tool, in particular an angle grinder, includes at least one switching unit that has at least one movably mounted ratchet element and at least one release element for unlocking a movement preventer of the ratchet element. The release element has at least one actuating region that is at least partially arranged laterally alongside an operating area of the ratchet element.
    Type: Application
    Filed: November 15, 2012
    Publication date: November 20, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Cornelius Boeck, Daniel Barth, Joachim Schadow, Sinisa Andrasic
  • Patent number: 8833485
    Abstract: A battery-powered portable tool, such as a chainsaw, hedge trimmer or handheld drill, comprising: a housing (1), a driven element (2) supported by the housing (1), an electric motor (6) coupled to the driven element (2) so as to drive the driven element (2), a battery (5) electrically coupled to the motor (6) so as to supply electric current to the motor (6) and a control circuit (8) arranged to control the supply of electric current to the motor (6) from the battery (5), in which the control circuit (8) comprises a main switch (8) operable by a user and an auxiliary switch (10, 11) also operable by a user; in which the control circuit (8) has: an active state in which operation of the main switch (8) by the user allows electric current to flow to the motor (6) so as to cause the driven element (2) to be driven; and an inactive state in which operation of the main switch (8) does not allow electric current to flow to the motor (6) and so the motor (6) does not drive the driven element (2); in which operation
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: September 16, 2014
    Assignee: Husqvarna AB
    Inventors: Johan Svennung, Pär Martinsson, Johan Björnlinger
  • Patent number: 8752646
    Abstract: An electric power tool includes: a motor; a housing receiving the motor; a power transmission mechanism configured to transmit a driving force of the motor to rotate a top tool; a snap switch including a swing type lever configured to turn on or off rotation of the motor, the snap switch being received inside the housing; a switch lever configured to move in a direction substantially vertical to a surface of the housing; a push bar configured to move the swing type lever in conjunction with the movement of the switch lever; and an urging unit configured to urge the push bar in a direction in which the switch is turned off.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: June 17, 2014
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Masahiro Fujiwara, Nobuhiro Hosokawa
  • Patent number: 8723060
    Abstract: Embodiments of the present invention disclosed herein present forms of a method and mechanism for a power tool lock-off, wherein accidental activation of the power tool may be inhibited. Pressing a lock-off release button on the tool housing induces a locking member to move from a first position to a second position, allowing a trigger to access a power switch within the housing. Various forms and methods of lock-off mechanisms are enabled.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: May 13, 2014
    Assignee: Robert Bosch Tool Corporation
    Inventors: Jon James Parrinello, Thomas Costello-Saile
  • Patent number: 8640345
    Abstract: A saw assembly includes a housing, a drive member, a motor, a switch, a trigger, a lockout lever, a stop structure, and a lock-on member. The housing defines an interior space, and has a forward housing portion defining a forward housing opening and a rearward housing portion defining a rearward housing opening. The drive member extends through the forward housing opening, and is configured to be moved in a repeating pattern. The motor is positioned in the interior space and is configured to move the drive member in the repeating pattern. The switch is positioned in the interior space and has an actuator movable between an actuated and a deactuated position. When the switch is in the actuated position, the motor moves the drive member in the repeating pattern, and when the switch is in the deactuated position, the motor does not move the drive member in the repeating pattern.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: February 4, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Jaime Moreno
  • Publication number: 20130161161
    Abstract: Embodiments of the present invention disclosed herein present forms of a method and mechanism for a power tool lock-off, wherein accidental activation of the power tool may be inhibited. Pressing a lock-off release button on the tool housing induces a locking member to move from a first position to a second position, allowing a trigger to access a power switch within the housing. Various forms and methods of lock-off mechanisms are enabled.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Inventors: Jon James Parrinello, Thomas Costello-Saile
  • Patent number: 8460277
    Abstract: An end effector is disclosed that includes a tool including a drive configured to be coupled to and drive an engaging member for engaging a workpiece and a release member configured to be displaced to permit decoupling of the engaging member from the drive. The end effector also includes a housing configured to receive at least a portion of the tool and a release actuator disposed at least partially outside of the housing and coupled to the housing to permit movement between a first position and a second position to displace the release member to permit decoupling of the engaging member from the drive.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: June 11, 2013
    Assignee: MAKO Surgical Corp.
    Inventors: Joseph Suarez, Brian Schmitz
  • Patent number: 8393835
    Abstract: A detachable operating handle for an elongated handheld portable power tool with a nose portion having an output shaft and a slidable operating switch having an outer recess and being configured to slide between on and off positions, the handle comprising a housing configured to cooperatively mate with the power tool housing and be attached at least to the nose portion of the power tool, the housing having an elongated handle portion, a trigger located in the bottom of the handle portion positioned to be moved between depressed and rest positions by a user's finger while holding the handle portion, a linkage mechanism for interconnecting the trigger and the switch, and the linkage mechanism having a lockout mechanism for preventing the trigger from moving the switch when the lockout mechanism is in a locked position and permitting the trigger to move the switch when in a release position.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: March 12, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Kevin E. Wasielewski
  • Patent number: 8330066
    Abstract: A switch assembly provides a pressing plate on a pivot contact lever to minimize heat generation at the point between the pivot contact lever and the contact point by providing an additional parallel connection contact plate which is in parallel connection to the pivot contact lever. The switch assembly provides convex contact portions on the internal output ports of the forward/reverse switch mechanism. A supplementary elastic metal plate to the pivot contact lever is provided to solve the problem of loose contact at the pivot connection site where the pivot contact lever and the support unit meet, and provides a supplementary contact unit to the movable contact device at the forward/reverse switch mechanism.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: December 11, 2012
    Assignee: Shanghai Bai Cheng Electric Equipment
    Inventor: Xinsheng Xu
  • Patent number: 8217283
    Abstract: A trigger switch has a trigger arranged projected and biased to a front side in a housing, and a lock member projecting from a side of the trigger towards the housing, and being engaged with a lock button projecting to the side from the housing to fix the trigger in a pulled-in state. The lock member is swingably attached to the trigger.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: July 10, 2012
    Assignee: OMRON Corporation
    Inventors: Akihiro Arataki, Masafumi Kodani, Minoru Kobayashi, Koji Omori, Yoshiyuki Baba
  • Patent number: 8154248
    Abstract: A rechargeable battery pack for a power tool can have a data terminal that provides a signal that is indicative of whether the voltage is below a threshold and can serve as both a pre-charge signal for a charger and as a stop-discharge signal for a power tool. A charger can include a power supply circuit and a voltage detection circuit. A charger control module can receive a signal indicative of the voltage of the battery pack and determine a pre-charge time based on the voltage and can monitor a change in the voltage of the battery pack during the pre-charge operation and stop the pre-charge operation based on the change in voltage and the time period.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: April 10, 2012
    Assignee: Black & Decker Inc.
    Inventors: Nathan Cruise, Tarek Aydin, Keith D. Flaharty, Fugen Qin, Steven J. Phillips
  • Patent number: 8151471
    Abstract: A control handle included in a bush cutter is provided. A driving controller is switched on so that the cutting blade is driven in an adjusted speed mode at a rotation speed set by a speed adjuster. The control handle includes a high-speed mode controller configured to set the rotation speed of the cutting blade to a high rotation speed, and an interlock device provided between the driving controller and the high-speed mode controller and configured to interlock the driving controller and the high-speed mode controller when the high-speed mode controller is switched on so as to move the driving controller concurrently with the high-speed mode controller. When the high-speed mode controller is switched on, the driving controller is concurrently switched on by the interlock device so that the cutting blade is driven in a high-speed mode.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: April 10, 2012
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Hideki Tomiyama, Masanobu Yoshimura
  • Patent number: 8087976
    Abstract: An angle grinder is provided including a trigger assembly for selectively actuating the angle grinder. A particle separation assembly is provided for the removal of any dust, particle, or artifacts that may have entered into the housing of the angle grinder. A brush biasing system is also provided to ensure proper and efficient operation of the motor of the angle grinder. An overload monitoring system is included to monitor the loading on the motor. A clutch mechanism is also included to prevent overloading on the motor of the angle grinder. A gear wheel lock mechanism is also provided to prevent the wheel spindle from rotating during installation or removal of a grinding wheel on the wheel spindle. An anti-locking flange system is also included to prevent the over-tightening of the flanges and the grinder wheel during the operation of the angle grinder. A gear case labyrinth feature is also provided.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: January 3, 2012
    Assignee: Black & Decker Inc.
    Inventors: William F. Gallagher, Michael C. Doyle, Eric E. Hatfield, David C. Tomayko, Daniel L. Krout, Tanika Malloy
  • Publication number: 20110308920
    Abstract: A lock-on switch system for hand drill includes a switch disposed in a switch housing for controlling the operation of the drill, a trigger which is adapted to be movable between a home position where the trigger turns off the switch and a pushed-in position where the trigger turns on the switch, a pivotable locking bar having a front end adapted to be engaged with the trigger for locking the trigger in the pushed-in position, a slidable actuator adapted for pushing the locking bar into engagement with the trigger, and biasing means adapted for applying a force on the locking bar in a direction of disengaging the locking bar from the trigger.
    Type: Application
    Filed: December 17, 2008
    Publication date: December 22, 2011
    Applicants: Robert Bosch GmbH, Bosch Power Tools (China) Co., Ltd.
    Inventors: Xuedong Shi, Xianbin Jiang, Juergen Wiker
  • Patent number: 7705260
    Abstract: A switch assembly provides a pressing plate on a pivot contact lever to minimize heat generation at the point between the pivot contact lever and the contact point by providing an additional parallel connection contact plate which is in parallel connection to the pivot contact lever. The switch assembly provides convex contact portions on the internal output ports of the forward/reverse switch mechanism. A supplementary elastic metal plate to the pivot contact lever is provided to solve the problem of loose contact at the pivot connection site where the pivot contact lever and the support unit meet, and provides a supplementary contact unit to the movable contact device at the forward/reverse switch mechanism.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: April 27, 2010
    Inventor: Xinsheng Xu
  • Patent number: 7579563
    Abstract: Disclosed a trigger switch having a trigger to be locked stably when it is pulled in. The trigger has wall surfaces disposed oppositely leaving a space therebetween. Pivotal holes are formed in the wall surfaces and a pivotal shaft is inserted in said holes. Rotary shaft holes are formed in the wall surfaces, and a rotary shaft for inverting a switch is inserted in the rotary shaft holes. A stopper for stopping the trigger from being pulled while rotating about the pivotal shaft is mounted between the pivotal shaft and the rotary shaft. The stopper includes a stopper shaft engaged in stopper holes formed in the wall surfaces. A stopper button is mounted at an end of the stopper shaft. When the stopper button is pushed, the stopper shaft is moved to place a thinned portion thereof into the stopper holes, thus releasing the trigger from the stopper.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: August 25, 2009
    Assignee: Satori S-Tech Co., Ltd.
    Inventors: Isao Inagaki, Satoru Kowaki
  • Patent number: 7507925
    Abstract: A power tool is disclosed which comprises a hosing within which a motor is received for driving a tool. At least one switch is received on said housing and can be operated via an elastic touch surface from outside the housing. The switch is part of a signaling circuit which is coupled to a power circuit for activating the motor when said signaling circuit is activated.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: March 24, 2009
    Assignee: C. & E. Fein GmbH
    Inventors: Boris Rudolf, Sigmund Braun, Christof Kress
  • Publication number: 20090032377
    Abstract: Disclosed a trigger switch having a trigger to be locked stably when it is pulled in. The trigger has wall surfaces disposed oppositely leaving a space therebetween. Pivotal holes are formed in the wall surfaces and a pivotal shaft is inserted in said holes. Rotary shaft holes are formed in the wall surfaces, and a rotary shaft for inverting a switch is inserted in the rotary shaft holes. A stopper for stopping the trigger from being pulled while rotating about the pivotal shaft is mounted between the pivotal shaft and the rotary shaft. The stopper includes a stopper shaft engaged in stopper holes formed in the wall surfaces. A stopper button is mounted at an end of the stopper shaft. When the stopper button is pushed, the stopper shaft is moved to place a thinned portion thereof into the stopper holes, thus releasing the trigger from the stopper.
    Type: Application
    Filed: August 4, 2008
    Publication date: February 5, 2009
    Inventors: Isao Inagaki, Satoru Kowaki
  • Patent number: 7476821
    Abstract: A trigger mechanism for an electric power tool, comprises a spring-loaded trigger movable between an foremost position and an rearmost position, an adjuster for adjusting the rearmost position, an electrical switch arranged for closing by the trigger while the trigger is in an intermediate position, and a variable resistor arranged for operation by the trigger while the trigger is in an intermediate position to provide a resistance having a value dependent upon the position of the trigger. A locking device is included for locking the trigger near the rearmost position, and which is movable in opposite directions and arranged to lock the trigger near the rearmost position when the locking device is moved in either one of opposite directions.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: January 13, 2009
    Assignee: Defond Components Limited
    Inventor: Stefan Knuppel
  • Patent number: 7367409
    Abstract: A latch mechanism for a power tool is disclosed, in which the power tool has a housing (3), a motor provided in the housing, an output shaft adapted to be caused by said motor to actuate a working member, and a handle assembly (2) adapted to pivot relative to the housing between a plurality of positions.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: May 6, 2008
    Assignee: Black & Decker Inc.
    Inventor: Kevin Stones
  • Patent number: 7261166
    Abstract: A power tool includes a housing having a motor provided therein and a switch provided within the housing for activating the motor. The power tool also includes a member configured for movement between a first position in which the motor is operating and a second position in which the motor is not operating. The member includes a first end retained in the housing at a first location, a second end retained in the housing at a second location, a body portion extending between the first end and the second end, and a beam extending from the body into the housing for selectively actuating the switch.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: August 28, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Brad M. Baber, David Clarke
  • Patent number: 7232970
    Abstract: A safety start switch for a pneumatic tool including a main body, a compression strip, a push knob, a coupling element, a spring, and a pivot pin. After a corresponding arrangement of the above-mentioned components, the compression strip is not compressible in the ordinary state since the coupling element rests on the blocking portion of the main body. Meanwhile, the compression strip is downwardly swiveled to move the piston in the same direction responsive to the removal of the coupling element from the blocking position of the coupling element when the push knob is shifted against the resilience of the spring.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: June 19, 2007
    Inventor: Li-Hsueh Chen
  • Patent number: 7019227
    Abstract: In a case where a left-hand push-button switch is ON, a second relay RL2 is electrically de-energized to open a normally close contact RL2-1 of the second relay RL2 so that a relay contact circuit RC is opened. If, in this state, a right-hand push-button switch is shifted to a second OFF state, a normally close contact R3-1 of the right-hand push-button switch is opened. Thus, a third relay RL3 is not electrically de-energized and a first and a second circuits are in cutoff until both the right-hand and the left-hand push-button switches are returned to a first OFF state.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: March 28, 2006
    Assignee: Idec Izumi Corporation
    Inventors: Takao Fukui, Kenji Miyauchi, Kazuya Okada, Yasushi Kamino, Ken Maeda, Yoshio Sekino, Masaki Nobuhiro
  • Patent number: 7009145
    Abstract: A welding system having a welding gun with a self-contained trigger and trigger locking assembly. The self-contained trigger and trigger locking assembly has a trigger that is pivoted to operate the power source. The self-contained trigger and trigger locking assembly has a movable stem that pivots with the trigger and a stem receiving portion that is operable to receive the stem. The stem receiving portion acts to restrict pivotal movement of the stem so to maintain the trigger pivoted in position to continue operation of the power source.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: March 7, 2006
    Assignee: Illinois Tool Works Inc.
    Inventor: Gregory W. Bauer
  • Patent number: 6987244
    Abstract: A welding system having a welding implement with a self-contained trigger and trigger locking assembly. The self-contained trigger and trigger locking assembly has a trigger which, when operated, regulates the flow of current from a power source. The trigger lock of the assembly has a movable portion which includes a groove which can engage a complementary structure on the trigger to maintain the trigger in an operating position, thereby allowing continued flow of current from the power source.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: January 17, 2006
    Assignee: Illinois Tool Works Inc.
    Inventor: Gregory W. Bauer
  • Patent number: 6979799
    Abstract: A welding system having a welding gun. The welding gun is adapted with a trigger. The welding gun may have a lever to lock the trigger in a desired pivoted position. The lever may pivot the trigger as the lever is pivoted. The welding gun may have a trigger extension to enable a user to pivot the trigger by depressing the trigger extension. The trigger extension may be plastically deformed. The trigger extension may be removable. The trigger extension may be rotatable.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: December 27, 2005
    Assignee: Illinois Tool Works Inc.
    Inventor: Robert J. Centner
  • Patent number: 6958455
    Abstract: A trigger mechanism for a power tool includes a chassis; a trigger mounted to the chassis for movement between ON and OFF positions; an electrical switch mounted to the chassis for activation by movement of the trigger between the ON and OFF positions to close and open an electrical circuit; and a locking mechanism comprising a lock button and a latch, user-depression of the lock button causing deflection of the latch to enable depression of the trigger in the OFF position, the pushbutton retaining the latch deflected in the OFF position of the trigger until further depression of the trigger beyond the ON position releases the pushbutton from the latch to enable release of the trigger for return to the OFF position.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: October 25, 2005
    Assignee: Defond Components Limited
    Inventor: Nelson Man Hoi Lui
  • Patent number: 6943306
    Abstract: The present invention provides an interlock mechanism suitable for use with a blower-vacuum device, which comprises: a user-operable switch (30) having a first condition for activating a motor of said blower-vacuum device and a second condition for deactivating said motor; a latch (58) for engagement with a removable attachment of said blower-vacuum device; and a user-operable release button (57) for disengaging said attachment from said latch (58); wherein said switch (30) is operable to activate said motor only when an attachment is engaged with said latch (58), and said release button (57) is operable to disengage an attachment from said latch (58) only when said motor is deactivated; and wherein the first condition of said switch (30) comprises a first position of said switch for activating said motor at a first speed of operation and a second position of said switch for activating said motor at a second speed of operation.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: September 13, 2005
    Assignee: Black & Decker Inc.
    Inventors: Clare Tate, John Sadler
  • Patent number: 6930594
    Abstract: An electronically-active vehicle gear-shift knob (10) consisting of a hand-grasping section (12), an electronics enclosure (44) that is attached to an upper edge (14) of the hand-grasping section (12), and an electronics control circuit (90) consisting of a transmitting circuit (92) and a remotely located receiving circuit (94). The enclosure (44) includes a set of four pushbutton switches (92E) that are connected to the transmitting circuit (92). The closure of any one of the pushbutton switches (92E) allows the transmitting circuit (92) to produce an RF output signal (19) that is radiated via an antenna (92H) to the receiving circuit (94). The receiving circuit (94) subsequently processes the RF output signal (19) and produces an output control signal (29) that energizes an LED light corresponding to the specific pushbutton switch (92E)that has been closed.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: August 16, 2005
    Inventor: Calvin Wang
  • Patent number: 6930262
    Abstract: A saw switch box includes a supporting base resting on a switch platform, a switch shelter pivotally connected to the supporting base to define a sheltering cavity between the switch shelter and the supporting base for receiving a switch member, and a locking device for locking the switch shelter on the supporting base at the idle position. In which, at an operation position, the switch shelter is pivotally folded to a position that a contacting side of the switch shelter is adapted for contacting with the switch member to protectively shelter the switch member within the sheltering cavity in position while the saw machine is operating, and at the idle position, an operation side of the switch shelter is pressed to force the contacting side thereof for pivotally pressing the switch member downward to switch off the saw machine.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: August 16, 2005
    Inventor: Wy Peron Lee
  • Patent number: 6911609
    Abstract: A push-button switch 5 disposed in a switch case 3 has c-contacts and a normally close contact electrically connected with a terminal block 9 via conductors 39. Leading ends 23 of cores of a cable 7 introduced into the switch case 3 are inserted in insertion holes 49a, 49b formed in the terminal block 9. Screws 53a, 53b mounted to the terminal block 9 are tightened to press the leading ends 23 of the cores against conductive connection portions, on one side, in the insertion holes 49a, 49b, thereby to establish electrical connection.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: June 28, 2005
    Assignee: Idec Izumi Corporation
    Inventors: Kenji Miyauchi, Takao Fukui, Kazuya Okada, Yasushi Kamino, Ken Maeda, Yoshio Sekino
  • Patent number: 6909061
    Abstract: A trigger-brake structure for tool machine comprises a trigger device and a brake device arranged in a machine base, in which the trigger device is employed for starting a power switch while the brake device for constraining the power transmission. The trigger-brake structure for tool machine is characterized in that a transmission axle for power transmission is arranged in the machine base; a leverage trigger of the trigger device will apply force to another lever in the brake device when the trigger is rotated to move a self-restoring switch to therefore start the power of the machine base; and, the brake device is comprised of a flange of a spring for receiving a force applied by the trigger through a lever so that the stretch degree of a spring leaf surrounding the transmission axle can be controlled by the trigger device to thereby change the frictional force of contact surface between the spring leaf and the transmission axle.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: June 21, 2005
    Assignee: Jenn Feng Industrial Co., LTD
    Inventor: Jung-Chang Jong
  • Patent number: 6878888
    Abstract: A safety device includes a trigger for activating a first switch and a brake device for braking the output shaft of the electric tool. The trigger is controlled by a safety button that pivots a pivotal member that is engaged with a rotatable member when an intermediate member of the brake device is shifted by operating the brake device. The rotatable member matched with the pivotal member is rotated to activate a second switch. The electric power is provided to the output shaft when both the first and second switches are activated.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: April 12, 2005
    Assignee: Jenn Peng Industrial Co., Ltd.
    Inventor: Jung-Chang Jong
  • Patent number: 6861598
    Abstract: A power tool includes a hollow housing defining a handle with an external wall. A motor is disposed in the housing. A switch is pivotally mounted in the handle about a first axis for actuating the motor. The switch has a first locking abutment. A latch is located adjacent the switch and is pivotally mounted in the handle about a second axis generally parallel to the first axis for movement back and forth between an engaged and a disengaged position. The latch has a second abutment for engaging the first abutment and preventing the switch from being actuated. The latch when pivoted to engage the first and second abutments applies a force vector generally intersecting the second axis.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: March 1, 2005
    Assignee: Black & Decker Inc.
    Inventors: James P. Bascom, John E. Buck
  • Publication number: 20040226808
    Abstract: The invention relates to a switching device for a parking brake, especially a commercial-vehicle parking brake, with a handle that can be moved between a pulled position for engaging the parking brake and a pushed position for releasing the parking brake, and to such a parking brake. The handle is subjected to a preload force toward a central position when it is in the pulled or pushed position. Depending on the position of the handle, an evaluation device outputs different control signals for an actuating device of the parking brake.
    Type: Application
    Filed: January 27, 2004
    Publication date: November 18, 2004
    Inventors: Heiko Claussen, Jurgen Eickhoff, Helmut Kortschakowski, Klaus Pape
  • Patent number: 6812425
    Abstract: A trigger mechanism for a power tool, comprises a chassis, a trigger mounted movably to the chassis, and an electrical switch mounted to the chassis and activated by movement of the trigger between ON and OFF positions to close and open an electrical circuit. A locking mechanism attached to the chassis is user-activated to unlock the trigger in the OFF position and trigger-activated to release the trigger in the ON position. The mechanism includes a single, spring-loaded locking pin arranged to lock the trigger in both the ON and the OFF positions.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: November 2, 2004
    Assignee: Defond Components Limited
    Inventor: Kin Yu Wong
  • Publication number: 20040188230
    Abstract: The present invention provides an interlock mechanism suitable for use with a blower-vacuum device, which comprises: a user-operable switch (30) having a first condition for activating a motor of said blower-vacuum device and a second condition for deactivating said motor; a latch (58) for engagement with a removable attachment of said blower-vacuum device; and a user-operable release button (57) for disengaging said attachment from said latch (58); wherein said switch (30) is operable to activate said motor only when an attachment is engaged with said latch (58), and said release button (57) is operable to disengage an attachment from said latch (58) only when said motor is deactivated; and wherein the first condition of said switch (30) comprises a first position of said switch for activating said motor at a first speed of operation and a second position of said switch for activating said motor at a second speed of operation.
    Type: Application
    Filed: January 9, 2004
    Publication date: September 30, 2004
    Inventors: Clare Tate, John Sadler
  • Patent number: 6787721
    Abstract: A safety switch of a screwdriver has a driver body. The safety switch of a screw comprises a push unit; a trigger pivotally installed on the driver body; a receiving space being formed within the trigger for receiving the push unit; a safety rod; one end of the safety rod being installed at a lower end of the driver body; and another end of the safety rod being installed below the trigger. The push unit comprises: a torsion spring and a resisting unit pivotally installed to the trigger; one end of the torsion spring resisting against the resisting unit; and a roller pivotally installed to the trigger and installed at a pushed end of a valve rod. By above structure, the screwdriver can be operated safety by controlling the actuation of the safety rod.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: September 7, 2004
    Inventor: Wen-Sheng Huang
  • Patent number: 6734379
    Abstract: A power tool assembly is provided that includes a tool, and on/off switch, and a tool lock-out device connected to the on/off switch. The on/off switch is operative to selectively connect/disconnect the on/off switch to/from the tool, respectively.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: May 11, 2004
    Assignee: Olympia Group, Inc.
    Inventors: Norair Savadian, Thomas J. Wheeler
  • Patent number: 6700091
    Abstract: A trigger system for operating a plasma arc torch is provided that comprises a selector that operates between at least a first operating position and a second operating position, wherein the first operating position operates the plasma arc torch in a first mode to deliver gas to the plasma arc torch, and the second operating position operates the plasma arc torch in a second mode to deliver the gas and electric power to the plasma arc torch. Further, the selector comprises a neutral position that selects a neutral mode in which delivery of gas and electric power to the plasma arc torch is inhibited. The selector is preferably disposed within a housing of the plasma arc torch and is slidably operable between the first operating position, the second operating position, and the neutral position.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: March 2, 2004
    Assignee: Thermal Dynamics Corporation
    Inventors: Joseph P. Jones, Kevin D. Horner-Richardson, Kevin J. Kinnerson
  • Patent number: 6653584
    Abstract: A successive switch device of a slot cutting machine includes opposite first push button and second push button mounted on the handle, and a positioning block secured on secured on the press switch. The first push button and the second push button may be locked with the positioning block, so that the press switch may be positioned after being pressed. Thus, the slot cutting machine may be operated successively. In addition, the slot cutting machine is available for the right-handed and left-handed users.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: November 25, 2003
    Assignee: Rexon Co., Ltd.
    Inventor: Ruey Zon Chen
  • Publication number: 20030136652
    Abstract: A power tool includes a hollow housing defining a handle with an external wall. A motor is disposed in the housing. A switch is pivotally mounted in the handle about a first axis for actuating the motor. The switch has a first locking abutment. A latch is located adjacent the switch and is pivotally mounted in the handle about a second axis generally parallel to the first axis for movement back and forth between an engaged and a disengaged position. The latch has a second abutment for engaging the first abutment and preventing the switch from being actuated. The latch when pivoted to engage the first and second abutments applies a force vector generally intersecting the second axis.
    Type: Application
    Filed: March 4, 2003
    Publication date: July 24, 2003
    Applicant: PopUp Industries, Inc.
    Inventors: James P. Bascom, John E. Buck
  • Patent number: 6555773
    Abstract: An electrical switch for the speed setting of an electric motor in an electrical appliance includes a movable actuator member and a blocking structure. The actuator member is movable from an initial position into a plurality of actuating positions. The blocking means can be switched over between a blocking state for blocking the movement of the actuating member and a release state for releasing the movement of the actuating member. A first blocking means acts on the actuating member in the initial position. A second blocking means acts on the actuating member in the first actuating position. An actuating element has three switching positions for switching over the two blocking means. The first blocking means is in the blocking state in the first switching position. The first blocking means is in the release state and the second blocking means is in the blocking state in the second switching position. Both blocking means are in the release state in the third switching position.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: April 29, 2003
    Assignee: Marquardt GmbH
    Inventors: Peter Broghammer, Uwe Stratmann