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 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: Embodiments of a reciprocating drive apparatus are disclosed which comprise a housing, a drive shaft rotatably mounted in the housing, an elongated plunger mounted in the housing for reciprocating motion; the plunger having a rear end portion configured to engage a wobble plate interface structure and a front end portion for attaching a tool, a first bushing positioned in the housing for retaining the front end portion in a manner whereby the plunger is not restrained from rotating about a first axis of rotation, a second bushing positioned in the housing for receiving the rear end portion of the elongated plunger in a manner whereby the plunger is not restrained from rotating along a second axis of rotation as the plunger reciprocates in the bushing, a wobble plate assembly operatively connected to the drive shaft and having an elongated arm with a wobble plate interface structure for engaging the rear end portion of the plunger and reciprocating the plunger in the first and second bushings.

Abstract: A reciprocating tool comprising a drive shaft and a motor, a plunger for reciprocating motion, the plunger being driven by a wobble plate and pivotally supported in a front bushing and in a manner not prohibiting the plunger to rotate about a longitudinal axis of rotation, the plunger has a rear spherical end, a movable counterweight and a drive arm for moving the counterweight, the counterweight having an opening for receiving the plunger, the opening has side walls that support the rear spherical end of the plunger as it moves relative to the counterweight, a first wobble plate assembly connected to the drive shaft and having a first wobble plate interface engaging and reciprocating the plunger in the front bushing and the counterweight; and a second wobble plate assembly operatively connected to the drive shaft and having a second wobble plate interface engaging the drive arm of the counterweight.

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.

Abstract: Embodiments of a reciprocating drive apparatus are disclosed which comprise a housing, a drive shaft rotatably mounted in the housing, a motor in the housing for driving the drive shaft, an elongated plunger located in the housing for reciprocating motion, the plunger being driven by a wobble plate interface structure and pivotally supported in a front bushing and in a manner permitting the plunger to rotates about an axis of rotation aligned with the longitudinal axis of the plunger, the plunger having a front end portion for attaching a tool, and an enlarged rear end spherical portion, a counterweight assembly including a movable counterweight and a drive arm for moving the counterweight located in the housing, the counterweight having an opening for receiving the plunger, wherein the opening has at least cylindrical side wall portions that are sized and configured to support the rear end spherical portion of the plunger as the plunger and counterweight move relative to one another, a first wobble plate ass

Abstract: Embodiments of a reciprocating drive apparatus are disclosed which comprise a housing, a drive shaft rotatably mounted in the housing, an elongated plunger mounted in the housing for reciprocating motion; the plunger having a rear end portion configured to engage a wobble plate interface structure and a front end portion for attaching a tool, a first bushing positioned in the housing for retaining the front end portion in a manner whereby the plunger is not restrained from rotating about a first axis of rotation, a second bushing positioned in the housing for receiving the rear end portion of the elongated plunger in a manner whereby the plunger is not restrained from rotating along a second axis of rotation as the plunger reciprocates in the bushing, a wobble plate assembly operatively connected to the drive shaft and having an elongated arm with a wobble plate interface structure for engaging the rear end portion of the plunger and reciprocating the plunger in the first and second bushings.

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 reciprocal, 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: 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 reciprocal, 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: Embodiments are disclosed of an anti-disengagement assembly for minimizing disengagement of an electrical extension cord from a power tool of the type that includes a housing and a motor therein, the assembly including an electrical plug module configured to engage a receptacle of the extension cord, with the plug module being operatively connected to the power tool motor and being mounted in the housing and being biased by at least one spring in a configuration permitting limited movement that reduces the influence of vibration produced by the power tool on the plug module.

Abstract: An anti-rotation reciprocating drive apparatus for a reciprocating saw utilizes a wobble plate assembly that includes a drive shaft and an elongated arm with an interface structure for engaging a spindle. The interface structure has two ball-type interfaces that are concentrically aligned with one another, with the outer one being smaller than the inner one and both engaging a receiver portion of the spindle. The larger ball-type interface causes reciprocating movement of the spindle and the smaller outer interface prevents rotation of the spindle. The contact between the interfaces and the spindle receiver is a single point contact which reduces operating friction, wear of the parts and heat being generated.

Abstract: Embodiments are disclosed of an anti-disengagement assembly for minimizing disengagement of an electrical extension cord from a power tool of the type that includes a housing and a motor therein, the assembly including an electrical plug module configured to engage a receptacle of the extension cord, with the plug module being operatively connected to the power tool motor and being mounted in the housing and being biased by at least one spring in a configuration permitting limited movement that reduces the influence of vibration produced by the power tool on the plug module.

Abstract: A power hand tool foot assembly includes a platform having an arch portion. A swivel lock is within the arch portion, with a mount connecting the swivel lock to the tool housing. A lever is pivotally mounted on the mount. When the lever is in a locked position, the swivel lock and platform are locked in place. When the lever is in an open position, the longitudinal and angular position of the platform and swivel lock may be adjusted.

Abstract: An anti-rotation reciprocating drive apparatus for a reciprocating saw utilizes a wobble plate assembly that includes a drive shaft and an elongated arm with an interface structure for engaging a spindle. The interface structure has two ball-type interfaces that are concentrically aligned with one another, with the outer one being smaller than the inner one and both engaging a receiver portion of the spindle. The larger ball-type interface causes reciprocating movement of the spindle and the smaller outer interface prevents rotation of the spindle. The contact between the interfaces and the spindle receiver is a single point contact which reduces operating friction, wear of the parts and heat being generated.

Abstract: A power hand tool of the type adapted to operate with one of a variety of elongated blades and being configured for vacuuming debris from an area near the blade during operation of the tool, wherein the tool includes a housing, a motor located within the housing, a port within said housing configured to receive a vacuum attachment, and a storage receptacle configured to carry at least one elongated blade and to matingly engage the port.

Abstract: Methods and apparatus allowing a choice of Least Frequently Used (LFU) or Most Frequently Used (MFU) cache line replacement are disclosed. The methods and apparatus determine new state information for at least two given cache lines of a number of cache lines in a cache, the new state information based at least in part on prior state information for the at least two given cache lines. Additionally, when an access miss occurs in one of the at least two given lines, the methods and apparatus (1) select either LFU or MFU replacement criteria, and (2) replace one of the at least two given cache lines based on the new state information and the selected replacement criteria. Additionally, a cache for replacing MFU cache lines is disclosed.

Abstract: A system for instruction memory storage and processing in a computing device having a processor, the system is based on backwards branch control information and comprises a dynamic loop buffer (DLB) which is a tagless array of data organized as a direct-mapped structure; a DLB controller having a primary memory unit partitioned into a plurality of banks for controlling the state of the instruction memory system and accepting a program counter address as an input, the DLB controller outputs distinct signals. The system further comprises an address register located in the memory of the computing device, it is a staging register for the program counter address and an instruction fetch process that takes two cycles of the processor clock; and a bank select unit for serving as a program counter address decoder to accept the program counter address and to output a bank enable signal for selecting a bank in a primary memory unit, and a decoded address for access within the selected bank.

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 reciprocal, 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: A power hand tool of the type adapted to operate with one of a variety of elongated blades and being configured for vacuuming debris from an area near the blade during operation of the tool, wherein the tool includes a housing, a motor located within the housing, a port within said housing configured to receive a vacuum attachment, and a storage receptacle configured to carry at least one elongated blade and to matingly engage the port.

Abstract: A power hand tool foot assembly includes a platform having an arch portion. A swivel lock is within the arch portion, with a mount connecting the swivel lock to the tool housing. A lever is pivotally mounted on the mount. When the lever is in a locked position, the swivel lock and platform are locked in place. When the lever is in an open position, the longitudinal and angular position of the platform and swivel lock may be adjusted.