摘要:
A power saw suitable for one-handed operation having a three-dimensional shaped body with a hand grip and a base defining multi-sided exterior configuration. An electric motor is supported upon a mounting plate and installed within the housing. A gear drive system extends from an exposed face of the mounting plate and a power supply communicates to the motor and operatively drives the gear system. A continuous cutting band is supported upon outermost projecting gear members associated with the gear drive system, such that the band projects from a plurality of arcuately configured exterior surfaces associated with the body. A cutting zone is established at each projecting location of the band to perform a ripping operation on a workpiece positioned within a selected cutting zone.
摘要:
A catheter system includes a structure defining a fluid passage and a distal orifice, the structure having a first coupling configured to connect to a second coupling of a fluid line of a dialysis machine. The catheter system further includes a first spring supported by the structure and being configurable between an expanded configuration and a compressed configuration. When the first spring is in the expanded configuration, the first spring extends through the distal orifice so that (i) a proximal part of the first spring is positioned within the fluid passage, and (ii) a distal part of the first spring is positioned outside of the fluid passage. When the first spring is in the compressed configuration, the first spring is positioned entirely within the fluid passage of the structure.
摘要:
A system for advancing a workpiece in guided fashion towards a rotating blade associated with a saw or router table, the table including a fence securing a distance from the blade. A three-dimensional and elongated housing is secured upon the table, the saw being disposed between the housing and fence. The unit is laterally adjustable upon the table in directions towards and away from the blade, a width dimension associated with the workpiece generally corresponding to a distance between the housing and fence. A plurality of unidirectional rollers are incorporated into the housing, each of the rollers securing at linearly spaced intervals along the housing and each exhibiting a shaft supported and vertical axis of rotation, such that an outer radial edge associated with each roller contacts an associated side edge of the workpiece. The unidirectional rollers facilitate linear feed of the workpiece against the blade, the housing and fence preventing kick-back of the workpiece resulting from a ripping operation performed by the blade.