摘要:
A hand-held vacuum cleaner with a container for the storage of dirt and debris therein. To provide improved efficiency and performance, the hand-held vacuum may employ a primary HEPA filter, a device for swirling a dirt and debris laden air flow and/or a mechanized filter cleaning device. Swirling may be employed to direct entrained dirt and debris in a desired direction relative to the container to slow the rate with which dirt and debris accumulates on the primary filter and/or to centrifugally remove dirt and debris from the air flow. Mechanized cleaning is employed to shake, scrape or otherwise remove accumulated dirt and debris from the primary filter.
摘要:
An improved interface for releasably connecting a power control module or battery pack (14) to an electrical appliance or tool (10). The power control module (14) includes a power control trigger (28) and provides electrical power to a motor of the appliance. The power control switch is located on the appliance, and is actuated by a portion of the trigger (28) extending through the interface. The interface includes a pair of dovetail connections with interlocking flanges, requiring a two-motion procedure for assembly and disassembly. A latch release assembly interacts with the trigger to avoid powering the motor during assembly, and to prevent disassembly with the trigger pulled.
摘要:
A vegetation trimming and edging device has an adjustable head (12) that permits selective positioning between trimming and edging orientations. A shaft (14) extends between the head and a handle. The head receives one end of the shaft. A coupling mechanism (26) couples the head and shaft, and locks the head against rotational movement about the shaft. In particular, the coupling mechanism includes a locking structure and a bias mechanism. The bias mechanism urges the locking structure into engagement to prevent rotational movement of the head. Downward pressure applied to the head overcomes the bias, however, and disengages the locking mechanism for rotation of the head between trimming and edging modes. When the downward pressure is released, the locking mechanism is again engaged to lock the head in position for the desired operational mode.
摘要:
An improved interface for releasably connecting a power control module or battery pack (14) to an electrical appliance or tool (10). The power control module (14) includes a power control trigger (28) and provides electrical power to a motor of the appliance. The power control switch is located on the appliance, and is actuated by a portion of the trigger (28) extending through the interface. The interface includes a pair of dovetail connections with interlocking flanges, requiring a two-motion procedure for assembly and disassembly. A latch release assembly interacts with the trigger to avoid powering the motor during assembly, and to prevent disassembly with the trigger pulled.
摘要:
A hand-held vacuum cleaner with a container for the storage of dirt and debris therein. To provide improved efficiency and performance, the hand-held vacuum may employ a primary HEPA filter, a device for swirling a dirt and debris laden air flow and/or a mechanized filter cleaning device. Swirling may be employed to direct entrained dirt and debris in a desired direction relative to the container to slow the rate with which dirt and debris accumulates on the primary filter and/or to centrifugally remove dirt and debris from the air flow. Mechanized cleaning is employed to shake, scrape or otherwise remove accumulated dirt and debris from the primary filter.