Abstract: A cordless power tool has a housing which includes a mechanism to couple with a removable battery pack. The battery pack includes one or more battery cells as well as a vent system in the battery pack housing which enables fluid to move through the housing. A mechanism is associated with the battery pack to dissipate heat from the battery pack.

Abstract: A harpoon nail having two or more sets of teeth on opposite sides of fingers that deform while penetrating the framing members. The teeth engage with a bottom surface to fasten the framing members together. A piercing nail having sets of teeth on two edges penetrates through framing members and the teeth engage with a bottom surface to fasten the framing members together. A piercing nail with a spring member that deforms as the nail penetrates through framing members engages with a bottom surface to fasten the framing members together. A self-locking nail having two members that move relative to one another when penetrating through framing members fastens the framing members together.

Abstract: A harpoon nail having two or more sets of teeth on opposite sides of fingers that deform while penetrating the framing members. The teeth engage with a bottom surface to fasten the framing members together. A piercing nail having sets of teeth on two edges penetrates through framing members and the teeth engage with a bottom surface to fasten the framing members together. A piercing nail with a spring member that deforms as the nail penetrates through framing members engages with a bottom surface to fasten the framing members together. A self-locking nail having two members that move relative to one another when penetrating through framing members fastens the framing members together.

Abstract: A harpoon nail having two or more sets of teeth on opposite sides of fingers that deform while penetrating the framing members. The teeth engage with a bottom surface to fasten the framing members together. A piercing nail having sets of teeth on two edges penetrates through framing members and the teeth engage with a bottom surface to fasten the framing members together. A piercing nail with a spring member that deforms as the nail penetrates through framing members engages with a bottom surface to fasten the framing members together. A self-locking nail having two members that move relative to one another when penetrating through framing members fastens the framing members together.

Abstract: A saw blade clamping arrangement for a power tool includes a clamp support, a biasing member and an actuation member. The clamp support is interconnected with the drive shaft for reciprocating motion with the drive shaft relative to a housing of the power tool. The clamp support is configured to selectively receive a saw blade of the power tool in various orientations. A release lever is carried by the housing and is manually rotated to move a control member between a first position in which the saw blade is coupled to the drive shaft and a second position in which the saw blade may be displaced from the drive shaft. In at least one of the orientations, the saw blade is positioned offset from the drive shaft and proximate one of the side walls of the tool housing to allow for flush cutting of a work piece.

Abstract: A battery pack 13 (FIG. 2) comprises an elongated cylindrical, metal casing 35, a plurality of cells 41, 43 in casing 35 and three coaxial pack terminals 46, 54, 61. For enhanced convenience, pack terminals 46, 54, 61 are electrically connectable in a cordless device 11 regardless of the angular orientation of the pack 13 about casing axis 33. To reduce cost and increase durability, pack 13 has no welded connections and will permit high current discharge rates. Cells 41, 43 are electrically connected but are mechanically disconnected. A spring 73 engages cell 41 and biases cells 41, 43 tightly together in compression to form good, low resistance electrical contact between cells 41, 43, casing base cap 45 and top 53. To provide a pack with two output voltages, the third pack terminal 61 has a polarity (relative to first pack terminal 46) the same as second pack terminal 54 and is electrically connected to the cell can terminal 43b of forward cell 43, thereby electrically by-passing cell 43.

Abstract: A cordless power tool has a housing which includes a mechanism to couple with a removable battery pack. The battery pack includes one or more battery cells as well as a vent system in the battery pack housing which enables fluid to move through the housing. A mechanism is associated with the battery pack to dissipate heat from the battery pack.

Abstract: A saw blade clamping arrangement for a power tool includes a clamp support, a biasing member and an actuation member. The clamp support is interconnected with the drive shaft for reciprocating motion with the drive shaft relative to a housing of the power tool. The clamp support is configured to selectively receive a saw blade of the power tool in various orientations. A release lever is carried by the housing and is manually rotated to move a control member between a first position in which the saw blade is coupled to the drive shaft and a second position in which the saw blade may be displaced from the drive shaft. In at least one of the orientations, the saw blade is positioned offset from the drive shaft and proximate one of the side walls of the tool housing to allow for flush cutting of a work piece.

Abstract: A battery pack 13 (FIG. 2) comprises an elongated cylindrical, metal casing 35, a plurality of cells 41, 43 in casing 35 and three coaxial pack terminals 46, 54, 61. For enhanced convenience, pack terminals 46, 54, 61 are electrically connectable in a cordless device 11 regardless of the angular orientation of the pack 13 about casing axis 33. To reduce cost and increase durability, pack 13 has no welded connections and will permit high current discharge rates. Cells 41, 43 are electrically connected but are mechanically disconnected. A spring 73 engages cell 41 and biases cells 41, 43 tightly together in compression to form good, low resistance electrical contact between cells 41, 43, casing base cap 45 and top 53. To provide a pack with two output voltages, the third pack terminal 61 has a polarity (relative to first pack terminal 46) the same as second pack terminal 54 and is electrically connected to the cell can terminal 43b of forward cell 43, thereby electrically by-passing cell 43.

Abstract: A battery pack 13 (FIG. 2) comprises an elongated cylindrical, metal casing 35, a plurality of cells 41, 43 in casing 35 and three coaxial pack terminals 46, 54, 61. For enhanced convenience, pack terminals 46, 541, 61 are electrically connectable in a cordless device 11 regardless of the angular orientation of the pack 13 about casing axis 33. To reduce cost and increase durability, pack 13 has no welded connections and will permit high current discharge rates. Cells 41, 43 are electrically connected but are mechanically disconnected. A spring 73 engages cell 41 and biases cells 41, 43 tightly together in compression to form good, low resistance electrical contact between cells 41, 43, casing base cap 45 and top 53. To provide a pack with two output voltages, the third pack terminal 61 has a polarity (relative to first pack terminal 46) the same as second pack terminal 54 and is electrically connected to the cell can terminal 43b of forward cell 43, thereby electrically by-passing cell 43.

Abstract: A compound miter saw includes a table on which a workpiece is placed, a miter saw unit supporting a saw blade, and a housing pivotally supporting the miter saw unit related to the table in such a manner that the miter saw unit is at least laterally pivotable. Further, the miter saw includes a bevel mechanism for selectively determining the lateral position of the miter saw unit at any of a plurality of pivoted positions, including a vertical position where the saw blade is positioned substantially vertically relative to the table, and leftward and rightward pivoted positions where the blade is inclined laterally leftwardly and laterally rightwardly from the vertical position. The bevel mechanism includes a movable rod and three fixed stop members, the rod being operable to move between a first rod position abutting one of the fixed stop members and a second rod position not abutting the one of the fixed stop members so as to permit the lateral pivotal movement of the miter saw unit.

Abstract: A compound miter saw includes a table on which a workpiece is placed, a miter saw unit supporting a saw blade, and a housing pivotally supporting the miter saw unit related to the table in such a manner that the miter saws unit is at least laterally pivotable. Further, the miter saw includes a bevel mechanism for selectively determining the lateral position of the miter saw unit at any of a plurality of pivoted positions, including a vertical position where the saw blade is positioned substantially vertically relative to the table, and leftward and rightward pivoted positions where the blade is inclined laterally leftwardly and laterally rightwardly from the vertical position. The bevel mechanism includes a movable rod and three fixed stop members, the rod being operable to move between a first rod position abutting one of the fixed stop members and a second rod position not abutting the one of the fixed stop members so as to permit the lateral pivotal movement of the miter saw unit.

Abstract: A cordless power tool has a housing which includes a mechanism to couple with a removable battery pack. The battery pack includes one or more battery cells as well as a vent system in the battery pack housing which enables fluid to move through the housing. A mechanism is associated with the battery pack to dissipate heat from the battery pack.

Abstract: A harpoon nail having two or more sets of teeth on opposite sides of fingers that deform while penetrating the framing members. The teeth engage with a bottom surface to fasten the framing members together. A piercing nail having sets of teeth on two edges penetrates through framing members and the teeth engage with a bottom surface to fasten the framing members together. A piercing nail with a spring member that deforms as the nail penetrates through framing members engages with a bottom surface to fasten the framing members together. A self-locking nail having two members that move relative to one another when penetrating through framing members fastens the framing members together.

Abstract: A powe tool includes a saw blade ejection mechanism for a saw blade clamping arrangement of a power tool. The power tool includes a housing, a drive shaft mounted for reciprocating motion relative to the housing and a saw blade. The clamping arrangement is operative for releasably connecting the saw blade with the drive shaft. The saw blade ejection mechanism includes a mounting member and an elongated plunger. The mounting member is adapted for attachment to the drive shaft. The elongated plunger is connected to the mounting member for movement between a first position to a second position for ejecting the saw blade from the saw blade clamping arrangement.

Abstract: A cordless power tool has a housing which includes a mechanism to couple with a removable battery pack. The battery pack includes one or more battery cells as well as a vent system in the battery pack housing which enables fluid to move through the housing. A mechanism is associated with the battery pack to dissipate heat from the battery pack.

Abstract: A cordless power tool has a housing which includes a mechanism to couple with a removable battery pack. The battery pack includes one or more battery cells as well as a vent system in the battery pack housing which enables fluid to move through the housing. A mechanism is associated with the battery pack to dissipate heat from the battery pack.

Abstract: A cordless power tool has a housing which includes a mechanism to couple with a removable battery pack. The battery pack includes one or more battery cells as well as a vent system in the battery pack housing which enables fluid to move through the housing. A mechanism is associated with the battery pack to dissipate heat from the battery pack.

Abstract: A powe tool includes a saw blade ejection mechanism for a saw blade clamping arrangement of a power tool. The power tool includes a housing, a drive shaft mounted for reciprocating motion relative to the housing and a saw blade. The clamping arrangement is operative for releasably connecting the saw blade with the drive shaft. The saw blade ejection mechanism includes a mounting member and an elongated plunger. The mounting member is adapted for attachment to the drive shaft. The elongated plunger is connected to the mounting member for movement between a first position to a second position for ejecting the saw blade from the saw blade clamping arrangement.

Abstract: A powe tool includes a saw blade ejection mechanism for a saw blade clamping arrangement of a power tool. The power tool includes a housing, a drive shaft mounted for reciprocating motion relative to the housing and a saw blade. The clamping arrangement is operative for releasably connecting the saw blade with the drive shaft. The saw blade ejection mechanism includes a mounting member and an elongated plunger. The mounting member in adapted for attachment to the drive shaft. The elongated plunger is connected to the mounting member for movement between a first position to a second position for ejecting the saw blade from the saw blade clamping arrangement.