Patent application number | Description | Published |
20120118917 | POWERED DISPENSING TOOL - A powered dispensing tool includes a housing, a motor positioned within the housing, a rack coupled to the motor for powered translation in at least one of a forward direction and a reverse direction, and a transmission selectively coupling the motor and the rack. The transmission includes an input ring rotatable in response to rotation of the motor in a first direction corresponding with powered translation of the rack in the forward direction, a first clutch member engaged with the rack through an intermediate gear, and a second clutch member that receives torque from the input ring and that is movable in response to rotation of the motor in the first direction toward a first position engaging the first clutch member. The second clutch member is also movable in response to rotation of the motor in an opposite, second direction toward a second position disengaged from the first clutch member. | 05-17-2012 |
20130055554 | METHOD OF FORMING A POWER TOOL - A method for forming an armature for an electric motor includes: securing a lamination stack having slots therein on an armature shaft, securing a commutator on one end of the armature shaft, winding magnet wires in the slots in the lamination stack and securing ends of the magnet wires to the commutator, the magnet wires having armature lead wires that extend from the slots to the commutator; and molding plastic over the magnet wires to encase at least the armature lead wires in plastic. Alternatively and/or additionally, plastic is molded over the magnet wires to retain them in the slots and to support the armature lead wires and prevent them from vibrating when the armature rotates during operation. | 03-07-2013 |
20130057090 | METHOD OF FORMING A POWER TOOL - An electric motor for a power tool includes a stator and an armature disposed in the stator. The armature includes a lamination stack having slots therein; an armature shaft extending coaxially through the lamination stack; a plurality of magnet wires wound in the slots of the lamination stack; a commutator disposed on the armature shaft to which ends of the magnet wires are electrically coupled; and thermally conductive plastic at least partially encasing the magnet wires, the thermally conductive plastic having a base polymer that is a blend of at least two polymers. | 03-07-2013 |
20130119081 | GREASE GUN - A grease gun includes a housing, a motor positioned within the housing, a pump assembly coupled to and driven by the motor, and a chamber supported by the housing in fluid communication with the pump assembly. The chamber is configured to store a liquid. The grease gun also includes an outlet in fluid communication with the chamber and a measurement system operable to measure an amount of liquid being dispensed through the outlet. The measurement system monitors a change in current of the motor over a cycle of the pump assembly, compares the change in current to a predetermined value, and, if the change in current is greater than the predetermined value, increases a pump cycle counter to indicate that liquid was dispensed. | 05-16-2013 |
20130213683 | POWER TOOL DUST COLLECTOR - A power tool assembly includes a hand-held power tool, a dust collector removably coupled to the power tool, and first and second power tool battery packs each of which is interchangeably coupled with the power tool and the dust collector for separately powering the power tool and the dust collector, respectively. | 08-22-2013 |
20130291371 | METHOD OF FORMING A POWER TOOL - A method of manufacturing an armature for an electric motor, includes: placing a commutator and a lamination stack on an armature shaft, winding magnet wire in slots in the lamination stacks to form coils, attaching ends of the magnet wire to the commutator, and molding plastic around the magnet wire and around the shaft of the armature at ends of the lamination stack. A spinning inertia of the armature is adjusted by adjusting at least one of a mass of the plastic molded and a distribution of the plastic molded. Alternatively and/or additionally, at least one of a resonant frequency and critical speed of the armature is adjusted by adjusting at least one of a geometry of the plastic molded, the physical properties of the plastic and the mechanical properties of the plastic. | 11-07-2013 |
20130300221 | METHOD OF FORMING A POWER TOOL - An electric motor has a stator in which an armature is disposed. The armature has a shaft. One of the stator or the armature includes a lamination stack having slots in which magnet wires are wound, the magnet wires having a coating of heat activated adhesive. There is further provided plastic molded around the magnet wires with heat of the plastic activating the heat activated adhesive on the magnet wires during molding of the plastic to bond the magnet wires together. | 11-14-2013 |
20140131059 | HIGH-POWER CORDLESS, HAND-HELD POWER TOOL INCLUDING A BRUSHLESS DIRECT CURRENT MOTOR - A cordless, hand-held power tool, such as a hammer drill/driver, a drill/driver, an impact driver, an impact wrench, etc., that includes a brushless direct current (“BLDC”) motor. Each of the hand-held power tool includes a removable and rechargeable battery pack, electronics, and a BLDC motor that have been designed and balanced to produce a high-performance-capable (e.g., high-power, high-current, high-torque) hand-held power tool. The hand-held power tool is capable of delivering high instantaneous (i.e., short duration) current to the BLDC motor for short-duration high power operation and high continuous (i.e., long duration) current to the BLDC motor for long duration high power operation. Additionally, the short and long duration power is capable of being provided in a smaller (in size) and lighter (in weight). | 05-15-2014 |
20140272517 | BATTERY PACK WITH HEAT SINK - A battery pack including a housing including an inner cavity and an interface for receiving a power tool. The interface includes electrical terminals operable to interface with the power tool. Battery cells are positioned within the cavity and are electrically coupled to the electrical terminals. The battery pack also includes at least a portion of the housing that is configured as a heat sink to passively dissipate heat generated in the cavity to an external environment of the battery pack. | 09-18-2014 |
20140360008 | METHOD OF FORMING A POWER TOOL - A method of manufacturing an armature for an electric motor, includes: placing a commutator and a lamination stack on an armature shaft, winding magnet wire in slots in the lamination stacks to form coils, attaching ends of the magnet wire to the commutator, and molding plastic around the magnet wire and around the shaft of the armature at ends of the lamination stack. A spinning inertia of the armature is adjusted by adjusting at least one of a mass of the plastic molded and a distribution of the plastic molded. Alternatively and/or additionally, at least one of a resonant frequency and critical speed of the armature is adjusted by adjusting at least one of a geometry of the plastic molded, the physical properties of the plastic and the mechanical properties of the plastic. | 12-11-2014 |
Patent application number | Description | Published |
20080315712 | Brush Assembly Including Biasing Member for Applying Force - A brush assembly may include a support member, a conductive arm having a first end portion and a second end portion, where the first end portion is coupled to the support member, a brush coupled to the second end portion of the conductive arm, and a biasing member configured to apply a force to the conductive arm. | 12-25-2008 |
20090021090 | Power Tools With Motor Having a Multi-Piece Stator - A power tool has a motor having a stator made by separately forming pole pieces, return path pieces and field coils. The field coils are placed over necks of the pole path pieces and the return path pieces are affixed to the pole pieces. An armature having an outside diameter of at least 0.625 the outside diameter of the stator is placed in the stator. The field coils may be formed so that they extend beyond pole tips of the pole pieces. | 01-22-2009 |
20090200891 | Electric Motor Having A Field Assembly With Slot Insulation - An electric motor has a field assembly, such as a stator, for a dynamoelectric machine has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated with insulating sleeves or insulating slot liners. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed. | 08-13-2009 |
20110115314 | POWER TOOLS WITH MOTOR HAVING A MULTI-PIECE STATOR - A power tool has a motor having a stator made by separately forming pole pieces, return path pieces and field coils. The field coils are placed over necks of the pole path pieces and the return path pieces are affixed to the pole pieces. An armature having an outside diameter of at least 0.625 the outside diameter of the stator is placed in the stator. The field coils may be formed so that they extend beyond pole tips of the pole pieces. | 05-19-2011 |
20120248902 | POWER TOOL WITH MOTOR HAVING A MULTI-PIECE STATOR - A power tool has a motor having a stator made by separately forming pole pieces and field coils. The field coils are placed over necks of the pole path pieces. An armature has an outside diameter of at least 0.625 the outside diameter of the stator is placed in the stator. The housing has a girth of 200 mm or less with the motor wound to provide a maximum watts out to housing girth ratio of at least 5 maximum watts outs to 1 mm of housing girth. The field coils may be formed so that they extend beyond pole tips of the pole pieces. | 10-04-2012 |
20130342042 | POWER TOOL WITH MOTOR HAVING A MULTI-PIECE STATOR - A power tool is provided including a housing and an electric motor disposed in the housing. The motor includes a stator having pole pieces mated together and field coils disposed on the pole pieces, the stator having an outside diameter. The motor also includes an armature having an outside diameter that is at least 0.625 of the outside diameter of the stator. | 12-26-2013 |
Patent application number | Description | Published |
20090133949 | Open-Loop Control Method for Cancelling Engine Induced Noise and Vibration - An open-loop control system that provides control signals to active engine mounts to reduce or eliminate the transfer of engine vibration to a vehicle body structure, where the system uses only a crank signal from the engine as an input. The control system includes an instant crank speed variation sensing processor that receives the crank signal from the engine, where the crank signal is a pulsed signal including missing pulses as a result of teeth missing on the vehicle crank wheel. The crank speed variation sensing processor provides a measurement of the instant crank speed variation of the crank signal and minimizes an error in the measurement as a result of the missing pulses. The crank speed variation sensing processor outputs a crank speed sensing variation signal as a sine wave that identifies order content in the crank pulse signal. | 05-28-2009 |
20100059301 | VIBRATION POWER GENERATION FOR A VEHICLE - A power generating engine mount is provided for coupling an engine and a body of a vehicle. The engine mount includes, but is not limited to a mounting stud configured for coupling to the engine and a permanent magnet coupled to the mounting stud. A coil is also provided that at least partially surrounds the permanent magnet and another mounting stud is configured to couple to the coil and the body. | 03-11-2010 |
20100096789 | MULTISTATE SWITCHABLE ENGINE MOUNT AND SYSTEM - A vehicle engine mount system comprises a housing and an inertia track assembly that forms a first fluid chamber with an upper compliant member and a second fluid chamber with the second end of the housing. The inertia track assembly has first and second passageways therethrough for conducting fluid between the first and second fluid chambers. The first passageway has a substantially greater flow resistance than the second. First and second switches are coupled to the first and second passageways, respectively, for selectively enabling the first and second switches to control fluid displacement between the first fluid chamber and the second fluid chamber. | 04-22-2010 |
20100244445 | SYSTEM AND METHOD FOR GENERATING POWER FROM A FAN - A system for generating power for a vehicle is provided. The system comprises a fan positioned to receive a flow of air, a turbine coupled to the fan, the turbine adapted to rotate the fan when operating in a first mode and to receive power from the fan when operating in a second mode, the turbine adapted to generate electrical power from the power received from the fan, and an electronic control unit adapted to selectively engage the first and second modes of the turbine. | 09-30-2010 |
20120292122 | CONTROL OF AN AIRSTREAM FLOW RATE THROUGH A COVERED COMPARTMENT BY AN ADJUSTABLE SHUTTER - A system for controlling a flow rate of an airstream through a compartment includes a panel configured to cover the compartment. The system also includes a first opening defined by the compartment and configured to permit the airstream to enter the covered compartment from the ambient when the compartment is covered by the panel. The system also includes a second opening defined by the panel and configured to permit at least a portion of the airstream to exit the covered compartment to the ambient. The system additionally includes a selectable position shutter assembly configured to control the size of the second opening and adjust a flow rate of the airstream through the covered compartment. A vehicle employing the shutter assembly to vary a flow rate of at least a portion of an airstream through the vehicle's under-hood area is also disclosed. | 11-22-2012 |
20130081888 | RECONFIGURABLE BASELINE OPENING FOR UNDER-HOOD AIRFLOW - A method of establishing a baseline airflow opening into an under-hood compartment of a vehicle configured to house a powertrain includes providing a fascia for the under-hood compartment. The fascia includes a first grille opening and a second grille opening configured to admit first and second portions of ambient airflow, respectively, into the under-hood compartment. A selectable position shutter assembly is disposed in the second grille opening and configured to control a size of the second grille opening. The baseline airflow opening into the under-hood compartment is the sum of the size of the first grille opening and the minimum size of the second grille opening. The method also includes ascertaining a configuration of the powertrain and setting the minimum size of the second grille opening in response to the ascertained configuration of the powertrain to establish the baseline airflow opening. A system employing the method is also disclosed. | 04-04-2013 |
20130103265 | VEHICLE GRILLE SHUTTER - A method of acknowledging a presence of an individual relative to a vehicle having a grille opening includes detecting that the vehicle is stationary. The method also includes sensing the presence of the individual relative to the vehicle. The method additionally includes setting an adjustable shutter in motion in response to the sensed presence of the individual when the vehicle is stationary. The shutter is arranged relative to the grille opening and is operable to selectively open and close the grille opening to present an appearance of a “wink”. A system using a controller configured to regulate the shutter and perform such a method is also provided. | 04-25-2013 |
20140038507 | METHOD AND APPARATUS FOR REMOTE TORQUE CONTROL OF AN AERODYNAMIC AIR SHUTTER MECHANISM - A system for controlling an aerodynamic shutter of a vehicle includes an ambient temperature estimation module that determines an ambient temperature. A shutter control module that determines whether to actuate the shutter based on the ambient temperature. The shutter control module also determines a predetermined period before selectively applying a predetermined torque value to the shutter. The predetermined period is selected based on the ambient temperature. | 02-06-2014 |
20140039765 | INITIALIZATION SEQUENCE FOR A VEHICLE GRILLE SHUTTER - A method of initializing operation of a shutter arranged relative to a grille opening in a vehicle having a power-plant includes detecting a start-up of the power-plant. The method also includes sensing a temperature of ambient air. The method also includes commanding the shutter to achieve a fully-opened position when the temperature of ambient air is above a predetermined value such that a flow of ambient air to the power-plant through the grille opening is substantially unrestricted. The method additionally includes commanding the shutter to achieve a fully-closed position when a temperature of the power-plant is maintained below a threshold value such that the flow of ambient air through the grille opening to the power-plant is substantially blocked. A vehicle using a controller configured to perform the above method is also provided. | 02-06-2014 |