Abstract: A device includes a housing configured with a working element and a motor configured for urging motion of the working element. The device further includes a power control module. The power control module is configurable for being in electrical connection with at least one of the motor, a first power source configuration and a second power source configuration. The first power source configuration is configurable for being electrically connected to a battery assembly having a DC power output. The second power source configuration is configurable for being electrically connected to a power inverter, the power inverter configured for receiving an AC power and further configured for outputting a DC power to the second power source configuration. The power control module includes an automatic power selection configuration for automatically selecting the second power source configuration when the second power source configuration receives DC power from the power inverter.

Abstract: A device includes a housing configured with a working element and a motor configured for urging motion of the working element. The device further includes a power control module. The power control module is configurable for being in electrical connection with at least one of the motor, a first power source configuration and a second power source configuration. The first power source configuration is configurable for being electrically connected to a battery assembly having a DC power output. The second power source configuration is configurable for being electrically connected to a power inverter, the power inverter configured for receiving an AC power and further configured for outputting a DC power to the second power source configuration. The power control module includes an automatic power selection configuration for automatically selecting the second power source configuration when the second power source configuration receives DC power from the power inverter.

Abstract: A cleaning device includes a housing configured with a working element. The device also includes a motor configured for urging motion of the working element. The device also includes a power control module which may be electrically connected with at least one of the motor, a first power source configuration and a second power source configuration. Electric current is provided to the motor by the first and/or the second power source configurations. The first power source configuration may be electrically connected to a battery assembly having a DC power output. The second power source configuration may be electrically connected to a power inverter which may receive AC power and output DC power to the second power source configuration. The motor may be one of a permanent magnet DC (PMDC) motor, a universal motor and an induction motor, the motor receiving power via the power control module from at least one of the first power source configuration and the second power source configuration.

Abstract: A chainsaw (100) has a chainsaw body (101), a cutting chain (103) driven by a motor, and a guide bar mounting stud (111) extending from the chainsaw body (101). The chainsaw (100) also has an adjustably connected guide bar (102) having a track for supporting the cutting chain (103) around a periphery of the guide bar (102) and an adjustment pin (114) extending from a side face thereof. The guide bar mounting stud (111) is configured to extend through an elongated slot (112) in the guide bar (102). The chainsaw (100) also has a cam (116) received on the guide bar mounting stud (111) and having an eccentric groove facing the guide bar (102). The adjustment pin (114) is received in the eccentric groove such that rotation of the cam (116) causes the guide bar (102) to move with respect to the chainsaw body (101), thereby tensioning the cutting chain (103).

Abstract: Hybrid power equipment comprising a user-selectable power selection switch for switching between DC or AC power, a boost and conserve feature for increasing speed of the working elements as necessary, and a motor or a plurality of motors for moving working elements. Running the OPE at the conserve setting prolongs battery pack duration per charge. The motor may comprise a dual coil commutator configuration. Power supply and control systems allow the user to select operation of the plurality motors or dual coil commutators in either series or parallel configuration depending on the power source.

Abstract: A chainsaw (100) has a chainsaw body (101), a cutting chain (103) driven by a motor, and a guide bar mounting stud (111) extending from the chainsaw body (101). The chainsaw (100) also has an adjustably connected guide bar (102) having a track for supporting the cutting chain (103) around a periphery of the guide bar (102) and an adjustment pin (114) extending from a side face thereof. The guide bar mounting stud (111) is configured to extend through an elongated slot (112) in the guide bar (102). The chainsaw (100) also has a cam (116) received on the guide bar mounting stud (111) and having an eccentric groove facing the guide bar (102). The adjustment pin (114) is received in the eccentric groove such that rotation of the cam (116) causes the guide bar (102) to move with respect to the chainsaw body (101), thereby tensioning the cutting chain (103).

Abstract: A device includes a housing configured with a working element. The device also includes a motor configured for urging motion of the working element. The device also includes a power control module which may be electrically connected with at least one of the motor, a first power source configuration and a second power source configuration. Electric current is provided to the motor by the first and/or the second power source configurations. The first power source configuration may be electrically connected to a battery assembly having a DC power output. The second power source configuration may be electrically connected to a power inverter which may receive AC power and output DC power to the second power source configuration. The motor may be one of a permanent magnet DC (PMDC) motor, a universal motor and an induction motor, the motor receiving power via the power control module from at least one of the first power source configuration and the second power source configuration.

Abstract: A device includes a housing configured with a working element. The device further includes a motor configured for urging motion of the working element. The device further includes a power control module. The power control module is configurable for being in electrical connection with at least one of the motor, a first power source configuration and a second power source configuration. The first power source configuration is configurable for being electrically connected to a battery assembly having a DC power output. The second power source configuration is configurable for being electrically connected to a power inverter, the power inverter configured for receiving an AC power and further configured for outputting a DC power to the second power source configuration. The motor receives power via the power control module from the first power source configuration and/or the second power source configuration.

Abstract: A hybrid electric lawnmower is described which includes a first and a second electric motor operating blades and the ability to drive the motors from either 120 VAC line voltage or from a battery pack. There is a user selectable power selection switch for switching between DC or AC power and also a boost and conserve feature which allows for increased speed of the blade as necessary. Running the mower at the conserve setting prolongs battery pack duration per charge. Power supply and control systems allow the user to select operation of the motors in either series or parallel configuration depending on the power source.

Abstract: A chainsaw has a saw chain connected so as to be driven by the motor and a guide bar for guiding and supporting the saw chain as it revolves around the periphery of the guide bar. The guide bar has a channel formed by alternatively offset tabs, wherein each tab is offset from its immediate two adjacent tabs such that there is an open segment in the channel opposite each tab. There is a first set of tabs on a first side of the guide bar and a second set of tabs on the opposite side of the guide bar, wherein the alternatively offset tabs keep the cutting chain centered in the channel formed between the first set of tabs and the second set of tabs.

Abstract: A hybrid electric lawnmower having dual power supply is described which includes an electric motor operating the blade and the ability to drive the motor from either 120 VAC line voltage or from a battery pack. There is a user selectable power selection switch for switching between DC or AC power in order to run the motor on either line voltage or based upon the charge of the battery pack.

Abstract: A hybrid electric lawnmower is described which includes an electric motor operating the blade and the ability to drive the motor from either 120 VAC line voltage or from a battery pack. There is a user selectable power selection switch for switching between DC or AC power and also a boost and conserve feature which allows for increased speed of the blade as necessary. Running the mower at the conserve setting prolongs battery pack duration per charge.

Abstract: A cleaning device includes a housing configured with a working element. The device also includes a motor configured for urging motion of the working element. The device also includes a power control module which may be electrically connected with at least one of the motor, a first power source configuration and a second power source configuration. Electric current is provided to the motor by the first and/or the second power source configurations. The first power source configuration may be electrically connected to a battery assembly having a DC power output. The second power source configuration may be electrically connected to a power inverter which may receive AC power and output DC power to the second power source configuration. The motor may be one of a permanent magnet DC (PMDC) motor, a universal motor and an induction motor, the motor receiving power via the power control module from at least one of the first power source configuration and the second power source configuration.

Abstract: A device includes a housing configured with a working element. The device further includes a motor configured for urging motion of the working element. The device further includes a power control module. The power control module is configurable for being in electrical connection with at least one of the motor, a first power source configuration and a second power source configuration. The first power source configuration is configurable for being electrically connected to a battery assembly having a DC power output. The second power source configuration is configurable for being electrically connected to a power inverter, the power inverter configured for receiving an AC power and further configured for outputting a DC power to the second power source configuration. The motor receives power via the power control module from the first power source configuration and/or the second power source configuration.

Abstract: A hybrid electric lawnmower is described which includes a first and a second electric motor operating blades and the ability to drive the motors from either 120 VAC line voltage or from a battery pack. There is a user selectable power selection switch for switching between DC or AC power and also a boost and conserve feature which allows for increased speed of the blade as necessary. Running the mower at the conserve setting prolongs battery pack duration per charge. Power supply and control systems allow the user to select operation of the motors in either series or parallel configuration depending on the power source.

Abstract: A hybrid electric lawnmower having dual power supply is described which includes an electric motor operating the blade and the ability to drive the motor from either 120 VAC line voltage or from a battery pack. There is a user selectable power selection switch for switching between DC or AC power in order to run the motor on either line voltage or based upon the charge of the battery pack.

Abstract: A device includes a housing configured with a working element. The device also includes a motor configured for urging motion of the working element. The device also includes a power control module which may be electrically connected with at least one of the motor, a first power source configuration and a second power source configuration. Electric current is provided to the motor by the first and/or the second power source configurations. The first power source configuration may be electrically connected to a battery assembly having a DC power output. The second power source configuration may be electrically connected to a power inverter which may receive AC power and output DC power to the second power source configuration. The motor may be one of a permanent magnet DC (PMDC) motor, a universal motor and an induction motor, the motor receiving power via the power control module from at least one of the first power source configuration and the second power source configuration.

Abstract: A hybrid electric lawnmower is described which includes an electric motor operating the blade and the ability to drive the motor from either 120 VAC line voltage or from a battery pack. There is a user selectable power selection switch for switching between DC or AC power and also a boost and conserve feature which allows for increased speed of the blade as necessary. Running the mower at the conserve setting prolongs battery pack duration per charge.

Abstract: A ring applicator for applying elastic rings to anatomical tissue during surgical procedures includes an inner member with a forceps movably disposed within a middle tubular member having a distal end configured to hold a plurality of elastic rings in an expanded state and a proximal end with a plurality of longitudinally spaced steps. The middle tubular member is movably disposed in an outer tubular member, and an adjustable stop mechanism is mounted on the proximal end of the outer tubular member to limit axial movement of the outer tubular member relative to the middle tubular member to select which rings are to be ejected. A distal handle is connected with the inner member via slots in the outer and middle tubular members, and a proximal handle is pivotally connected to the middle tubular member via a slot in the outer tubular member.

Abstract: A tool for driving a nail or other fastener is actuated by a caseless propellant charge formed of combustible material that is transported into a combustion chamber on a strip. The propellant charge is ignited by striking a sensitizer portion of the charge at an oblique angle. The ignition member intermixes the sensitizer material with an oxidizer layer of the surface of the propellant charge, resulting in combustion of the charge. When ignited, the propellant charge is compressingly interposed between an orifice plate and a movable portion of the combustion chamber. The orifice plate includes a pedestal with an annular compression surface that separates the surface of the ignition area from the remaining surfaces of the charge, insuring that ignition gases are forced through the charge. An annular C-shaped ring is interposed between the orifice plate and the movable portion of the combustion chamber.