Abstract: A diaphragm pump may comprise a housing defining a first pumping chamber, a second pumping chamber, and a hydraulic fluid chamber, a first flexible diaphragm separating the first pumping chamber from the hydraulic fluid chamber, a second flexible diaphragm separating the second pumping chamber from the hydraulic fluid chamber, a rod mechanically linking the first flexible diaphragm and the second flexible diaphragm such that an expansion of one of the first and second flexible diaphragms exerts a contraction force on the other of the first and second flexible diaphragms, and a piston disposed within the hydraulic fluid chamber and configured to reciprocate to cause a hydraulic fluid contained within the hydraulic fluid chamber to alternately exert an expansion force on the first and second flexible diaphragms.

Abstract: Illustrative embodiments of pump systems and methods are disclosed. In at least one embodiment, an apparatus comprises a piston pump including a motor and a plunger, where the motor is configured to drive linear reciprocating motion of the plunger in response to being supplied with a flow of compressed fluid, a metering valve fluidly coupled to the motor, the metering valve being configured to control the flow of compressed fluid to the motor, a purge valve fluidly coupled between the metering valve and the motor, a linear encoder coupled to the piston pump, the linear encoder configured to generate sensor data indicative of a position of the plunger, and an electronic controller operatively coupled to the metering valve, the purge valve, and the linear encoder, where the electronic controller is configured to receive sensor data from the linear encoder and to control the metering valve and the purge valve.

Abstract: The present invention provides methods and systems an impact wrench having dynamically tuned drive components, such as an anvil/socket combination, and related methodology for dynamically tuning the drive components in view of inertia displacement, as well as stiffness between coupled components, and with regard to impact timing associated with clearance gaps between the component parts.

Abstract: An illustrative embodiment of the present disclosure provides hand-held power tool which includes a housing, a motor, and an output spindle. The housing supports a motor having a rotor configured to rotate when the motor is supplied with power. The output spindle protrudes from an output end of the housing, and is functionally coupled to the rotor such that the output spindle rotates in response to a rotation of the rotor. The housing also supports at least one electrical accessory that is connectable to an external power connector located on the housing.

Abstract: A hand-held power tool is provided that includes a housing assembly, an output spindle, and a motor endbell. The housing assembly supports an electric motor having a rotor configured to rotate when the electric motor is supplied with power. The output spindle protrudes from an output end of the housing assembly, and is functionally coupled to the rotor such that the output spindle rotates in response to a rotation of the rotor. The motor endbell is located on the housing assembly adjacent the electric motor and opposite the output spindle. An illustrative controller is operable to determine phases of a fastening operation in which the hand-held power tool is operating. The phases of the fastening operation of the hand-held power tool include two phases including: (1) a continuous run phase and (2) an impacting phase.

Abstract: An electric generator includes a housing with a stator positioned thereabout. A rotor (i.e., magnetic member) is positioned within the housing and is adapted to move within the housing in response to a pulsed air input, such as from a pulsed-air exhaust device. The pulsed air input creates a pressure chamber between the pulsed air input and the magnetic member, which forces the magnetic member to axially advance in a first direction through the housing to magnetically interact with the stator to generate electric current therein. A biasing member may be positioned within the housing and in operative communication with the magnetic member. The magnetic member may compress the biasing member in the first direction, but the biasing member may exert a spring-back force against the magnetic member to force the magnetic member in a second direction through the stator to magnetically interact therewith to generate additional electric current therein.

Abstract: A socket for an impact tool includes an input recess configured to receive an anvil of the impact tool and an output recess configured to receive a head of a fastener.

Abstract: A socket for an impact tool includes an input recess configured to receive an anvil of the impact tool and an output recess configured to receive a head of a fastener.

Abstract: A system for starting an engine is disclosed herein. The system includes a fluid powered turbine with a variable geometry stator. The variable geometry stator includes moveable members operable to selectively block fluid flow to the turbine.

Abstract: Illustrative embodiments of impact tools having pressure verification and/or adjustment systems are disclosed. According to at least one illustrative embodiment, an impact tool may comprise a housing, an impact mechanism supported in the housing, a motor supported in the housing, and a pressure probe coupled to the housing. The impact mechanism may be configured to drive rotation of an output shaft about a first axis, the motor may be configured to drive the impact mechanism when energized, and the pressure probe may be configured to couple to a valve of a motor vehicle tire to measure an air pressure of the motor vehicle tire.

Abstract: A tire changing tool comprising a tool body, a ram, a ram actuator, a clamp arm, and a clamp actuator. The tool body is comprised of a housing, a lateral bracket, and first and second holding feet. The ram is comprised of a ram body and a ram base comprised of first and second opposed ram feet. The ram body is removable from an inner cavity of the housing, and is rotatable and replaceable in the inner cavity of the housing. Prior to fitting the tool to the tire and wheel for its intended use, the position of the ram base may selected between a first position in which the first ram foot extends laterally outwardly a first distance between the first and second holding feet, or a second position in which the second ram foot extends laterally outwardly a second distance between the first and second holding feet.

Abstract: In at least one illustrative embodiment, a clutch may comprise an outer race, an inner race, and an engagement assembly disposed in a space located radially between the outer and inner races. The engagement assembly may comprise a plurality of locking members and a biasing shoe frictionally engaged with one of the outer race and the inner race. The locking members may be configured to move with the biasing shoe within the space between an unlocked position, in which the locking members are free to move relative to the outer race and to the inner race, and a locked position, in which the locking members are wedged between the outer and inner races to couple the outer and inner races for rotation together.

Abstract: A socket for an impact tool includes an input recess configured to receive an anvil of the impact tool and an output recess configured to receive a head of a fastener.

Abstract: A socket for an impact tool includes an input recess configured to receive an anvil of the impact tool and an output recess configured to receive a head of a fastener.

Abstract: Illustrative embodiments of pump systems and methods are disclosed. In at least one embodiment, an apparatus comprises a piston pump including a motor and a plunger, where the motor is configured to drive linear reciprocating motion of the plunger in response to being supplied with a flow of compressed fluid, a metering valve fluidly coupled to the motor, the metering valve being configured to control the flow of compressed fluid to the motor, a purge valve fluidly coupled between the metering valve and the motor, a linear encoder coupled to the piston pump, the linear encoder configured to generate sensor data indicative of a position of the plunger, and an electronic controller operatively coupled to the metering valve, the purge valve, and the linear encoder, where the electronic controller is configured to receive sensor data from the linear encoder and to control the metering valve and the purge valve.

Abstract: Illustrative embodiments of impact tools having pressure verification and/or adjustment systems are disclosed. According to at least one illustrative embodiment, an impact tool may comprise a housing, an impact mechanism supported in the housing, a motor supported in the housing, and a pressure probe coupled to the housing. The impact mechanism may be configured to drive rotation of an output shaft about a first axis, the motor may be configured to drive the impact mechanism when energized, and the pressure probe may be configured to couple to a valve of a motor vehicle tire to measure an air pressure of the motor vehicle tire.

Abstract: In at least one illustrative embodiment, a diaphragm pump may comprise a housing defining a first pumping chamber, a second pumping chamber, and a hydraulic fluid chamber, a first flexible diaphragm separating the first pumping chamber from the hydraulic fluid chamber, a second flexible diaphragm separating the second pumping chamber from the hydraulic fluid chamber, a rod mechanically linking the first flexible diaphragm and the second flexible diaphragm such that an expansion of one of the first and second flexible diaphragms exerts a contraction force on the other of the first and second flexible diaphragms, and a piston disposed within the hydraulic fluid chamber and configured to reciprocate to cause a hydraulic fluid contained within the hydraulic fluid chamber to alternately exert an expansion force on the first and second flexible diaphragms.

Abstract: In at least one illustrative embodiment, a clutch may comprise an outer race, an inner race, and an engagement assembly disposed in a space located radially between the outer and inner races. The engagement assembly may comprise a plurality of locking members and a biasing shoe frictionally engaged with one of the outer race and the inner race. The locking members may be configured to move with the biasing shoe within the space between an unlocked position, in which the locking members are free to move relative to the outer race and to the inner race, and a locked position, in which the locking members are wedged between the outer and inner races to couple the outer and inner races for rotation together.

Abstract: A battery pack attachment arrangement comprising a tool having a housing defining a hollow area and an opening into the hollow area. A first support track is defined within the housing hollow area. A battery pack includes a main body and a stem portion extending from the main body. A first key extends radially from the battery pack stem portion. The first key is configured to be received axially through a first keyway and thereafter rotated along the first support track from a first portion to a second portion such that the first key supports the battery pack relative to the housing.

Abstract: A cordless power tool battery pack including an onboard circuit configured to electronically communicate with an associated battery charging system. The onboard circuit communicates information relating to the batter pack to a microprocessor or the like within the battery charging system and charging of the battery pack is controlled based on such communication.