Abstract: In one embodiment, a reciprocating tool includes a reciprocating plunger, the plunger including an inner wall defining a chamber portion within the plunger, a motor operably connected to the plunger, and a bushing located at least partially within the chamber and contacting the inner wall.

Abstract: A power tool includes a body and a housing surrounding at least a portion of the body. The power tool also includes a first isolator positioned between the body and the housing and in contact with the body and the housing. The power tool also includes a first fastener connected to the housing to position the first isolator with respect to the housing.

Abstract: A method, apparatus, and program product generate an estimation of an incremental recovery for an Enhanced Oil Recovery (EOR) process performed on a naturally-fractured reservoir by classifying the naturally-fractured reservoir based upon a set of reservoir properties associated with the naturally-fractured reservoir, and generating an estimation of the incremental recovery for at least one EOR process based on the classification of the naturally-fractured reservoir.

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.

Abstract: A dust extraction system for a power tool having a output shaft, a collet configured for engaging a tool bit and a collet nut engageable to the output shaft, comprises a base configured for mounting on the power tool, the base defining a cavity having an opening for passage of the output shaft therethrough and a discharge chute in communication with the cavity. The system further includes an impeller sized and configured to be rotatably received within the cavity, including a hub and a plurality of vanes emanating from the hub configured to draw dust from the workpiece into the cavity and to direct the dust through the discharge chute. A collet nut is integrated into the hub of the impeller so that the impeller can be directly mounted to the output shaft of the power tool while clamping the collet onto the tool bit.

Abstract: An accessory tool is configured to be coupled to a power tool having a tool drive structure. The accessory tool includes a spring component and has a first arm and a second arm attached to the spring component. The first arm includes (i) a first proximal end portion defining a first accessory drive structure that is configured to mate with a first portion of the tool drive structure, and (ii) a first distal end portion having a first holding structure. The second arm is spaced apart from the first arm and includes (i) a second proximal end portion defining a second accessory drive structure that is configured to mate with a second portion of the tool drive structure, and (ii) a second distal end portion having a second holding structure.

Abstract: A saw assembly includes a drive member, a motor, a housing, and a guard. The drive member is configured to be moved in a repeating pattern. The motor is configured to move the drive member in the repeating pattern. The housing defines an interior space in which the motor is positioned. The guard is secured to the housing and includes a partition. The guard defines (i) a first cutting wheel space positioned on a first side of the partition, and (ii) a second cutting wheel space positioned on an opposite second side of the partition.

Abstract: A saw assembly includes a housing, a motor, a worm gear, and a drive member. The housing defines an interior space. The motor is positioned in the housing and has a motor shaft, the motor being configured to rotate the motor shaft about a first axis. The worm gear is positioned in the housing and has a worm gear shaft. Rotation of the motor shaft causes rotation of the worm gear shaft. The drive member is operatively coupled to the worm gear. Rotation of the worm gear shaft causes movement of the drive member in a repeating pattern. The worm gear shaft includes a bore structure defining a blind bore and an opening leading to the blind bore. The bore structure defines a set of internal threads that are spaced apart from the opening. The motor shaft includes a set of external threads.

Abstract: A saw assembly includes a housing, a drive member, a motor, a switch, a trigger, a lockout lever, and a stop structure. The housing defines an interior space, and the housing 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 the drive member 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 position and a deactuated position.

Abstract: A saw assembly includes a drive member, a motor, a housing, a foot, a spring, a first clamp component, and a clamp actuator. The drive member is configured to be moved in a repeating pattern. The motor is configured to move the drive member in the repeating pattern. The housing defines an interior space in which the motor is positioned, and the housing including a first limiter. The foot includes (i) a base defining a work piece contact surface, and (ii) an extension structure attached to the base. The foot is configured to pivot in relation to the housing about a pivot axis between a rest position and a non-rest position. The spring is configured to bias the foot toward the rest position. The first clamp component includes a first clamping surface positioned in the interior space of the housing.

Abstract: A saw and guide apparatus includes a saw assembly and a cutting guide. The saw assembly includes (i) a drive member configured to be moved in a repeating pattern, (ii) a motor configured to move the drive member in the repeating pattern, (iii) a housing defining an interior space in which the motor is positioned, (iv) a foot including a base defining a cutting member opening therein, the base further defining a lower base surface, (v) a cutting member secured to the drive member so that the cutting member extends through the cutting member opening, and (vi) a guard attached to the housing and defining a cutting wheel space in which the cutting wheel is at least partially positioned.

Abstract: A saw assembly includes a drive member, a motor, a housing, and a foot. The drive member is configured to be moved in a repeating pattern. The motor is configured to move the drive member in the repeating pattern. The housing defines an interior space in which the motor is positioned. The foot includes (i) a base having an upper surface and a lower work piece contact surface, and (ii) a conduit structure secured to the upper surface of the base. The housing is pivotably mounted to the conduit structure.

Abstract: A saw assembly includes a drive member, a motor, a housing, a foot, and a spring. The drive member is configured to be moved in a repeating pattern. The motor is configured to move said drive member in said repeating pattern. The housing defines an interior space in which said motor is positioned, and said housing includes a mount located in said interior space. The foot includes (i) a base defining a work piece contact surface, and (ii) an extension structure attached to said base and defining a spring arm contact surface. The spring includes (i) a spring arm positioned in contact with said spring arm contact surface, and (ii) a coiled portion supported by said mount. The housing is configured to pivot in relation to said foot about a pivot axis.

Abstract: A drive apparatus for a reciprocating tool, including a housing, a rotatable drive shaft assembly located in the housing, an elongated spindle located in the housing for reciprocating motion, a front bushing in the housing for supporting the front end portion of the spindle, and a wobble drive mechanism. The wobble drive mechanism preferably includes a wobble drive shaft connected to the drive shaft assembly and an elongated arm having a lengthwise axis extending upwardly from the wobble drive shaft and including an upper interface for reciprocating the spindle generally in its lengthwise direction during alternating cutting and return strokes. The upper interface connects the arm to the spindle in a manner that prevents translational movement of the spindle relative to the arm in the direction of the arm lengthwise axis, but permits rotational movement thereof in three orthogonal axes.

Abstract: A table saw in one embodiment includes a swing arm assembly movable along a swing path between a first swing arm position whereat a portion of a shaping device supported by the swing arm assembly extends above a work-piece support surface and a second swing arm position, a first link arm with a first tracking component and a first slot, the first tracking component slidingly engaged with the swing arm assembly, a second link arm with a second tracking component engaged with the first slot, an actuator configured to pivot the second link arm from a first position whereat force from the first link arm acting on the tracking component is directed at a second link arm pivot toward a second position whereat the force is not directed at the second link arm pivot, and a control system configured to actuate the actuator in response to a sensed condition.

Abstract: A reciprocating cutting tool configured for orbital cutting, includes a housing, a power source disposed in the housing, a main linkage connected to the power source and to a blade for driving the blade in a vertically reciprocating motion, a foot plate connected to the housing and including a portion in operational relationship to the blade, a swivel bracket connected to the foot plate and disposed to exert an orbital force to a rear edge of the blade. A plunger is secured within the housing and connected to the linkage for reciprocating, pivotal and rotational movement, and has an end configured for receiving a blade. A selector mechanism for selecting at least between pivotal and rotational movement of the plunger, wherein the pivotal movement relates to orbital blade motion, and the rotational movement relates to scrolling blade motion.

Abstract: An accessory tool is configured to be coupled to a power tool having a tool drive structure. The accessory tool includes a spring component and has a first arm and a second arm attached to the spring component. The first arm includes (i) a first proximal end portion defining a first accessory drive structure that is configured to mate with a first portion of the tool drive structure, and (ii) a first distal end portion having a first holding structure. The second arm is spaced apart from the first arm and includes (i) a second proximal end portion defining a second accessory drive structure that is configured to mate with a second portion of the tool drive structure, and (ii) a second distal end portion having a second holding structure.

Abstract: Embodiments of the present invention are directed to a drive apparatus for a reciprocating tool, comprising a housing, a rotatable drive shaft assembly located in the housing, an elongated spindle located in the housing for reciprocating motion, a front bushing in the housing for supporting the front end portion of the spindle, and a wobble drive mechanism comprising a wobble drive shaft connected to the drive shaft assembly, an elongated arm having a lengthwise axis extending upwardly from the wobble drive shaft and including an upper interface for reciprocating the spindle generally in its lengthwise direction during alternating cutting and return strokes, wherein the upper interface connects the arm to the spindle in a manner that prevents translational movement of the spindle relative to the arm in the direction of the arm lengthwise axis, but permits rotational movement thereof in three orthogonal axes. Other embodiments of a drive apparatus are disclosed.

Abstract: A support arrangement for a reciprocating tool comprises a first locking surface configured to engage a second locking surface in a locking engagement. The first locking surface is secured to the reciprocating tool. The second locking surface is provided on a support foot assembly. A shaft extends between the first locking surface and the second locking surface. The shaft defines a shaft axis that is oriented substantially orthogonal to the tool axis. An adjustment mechanism is positioned on the shaft. The adjustment mechanism is configured to move upon the shaft and clamp the first locking surface and the second locking surface together. In at least one embodiment, a ratchet arrangement is provided in the adjustment mechanism. The ratchet arrangement limits the extent that the adjustment mechanism may be tightened to clamp the first locking surface to the second locking surface.