Abstract: A method for marking a specific tube in a shell and tube heat exchanger includes inserting a marker into a second tube adjacent to the tube to be marked and directing a directional pointer on the marker toward the tube to be marked.

Abstract: A method for marking a specific tube in a shell and tube heat exchanger includes inserting a marker into a second tube adjacent to the tube to be marked and directing a directional pointer on the marker toward the tube to be marked.

Abstract: A device and method for temporarily plugging and visually identifying the condition of tubes.

Abstract: A device and method for temporarily plugging and visually identifying the condition of tubes.

Abstract: A router mounting system is disclosed. A preferred embodiment of the router mounting system includes a router assembly, a first sub-base, and a router table. The router assembly and first sub-base include interlocking radial projections, recesses and discontinuities such that the first sub-base can be firmly attached to the router assembly quickly and without the use of tools or fasteners. This allows a user to interchangeably use a single router either in the hand mode of operation or in the table mode of operation with only a few seconds required to change betweens modes of operation.

Abstract: A radial overarm router includes a machine base with a work surface, a vertical column, a bearing housing, a slide assembly, and a carriage subassembly. The bearing housing is mounted to, and may rotate about, the vertical column. The slide assembly mounts to the bearing housing and in combination with the bearing housing, the slide assembly has transnational and rotational motion relative to the column. The slide assembly includes a carriage subassembly that houses a router. The carriage subassembly is configured to allow pivotal and vertical or plunge type motion of the router. The carriage subassembly further provides for transverse movement of the router. Locking knobs and adjustable limit stops are provided for all directions of movement.

Abstract: A mandrel assembly is usable with a hole saw and a drill bit. The mandrel assembly includes a body having a shank portion and an adapter receiving portion. The adapter receiving portion defines an adapter receiving cavity and including a first wall having a first detent hole extending therethrough. The mandrel assembly further includes a bit coupler secured to the body. The bit coupler is located within the adapter receiving cavity and defines a drill bit receiving portion. The drill bit receiving portion includes a bit receiving cavity and a second wall having a second detent hole extending therethrough. The mandrel assembly further includes an adapter configured to be received within the adapter receiving cavity, the adapter having an externally threaded portion configured to meshingly engage with a set of internal threads of the hole saw, the adapter further having a first detent groove defined in an outer surface thereof.

Abstract: A radial overarm router includes a machine base with a work surface, a vertical column, a bearing housing, a slide assembly, and a carriage subassembly. The bearing housing is mounted to, and may rotate about, the vertical column. The slide assembly mounts to the bearing housing and in combination with the bearing housing, the slide assembly has transnational and rotational motion relative to the column. The slide assembly includes a carriage subassembly that houses a router. The carriage subassembly is configured to allow pivotal and vertical or plunge type motion of the router. The carriage subassembly further provides for transverse movement of the router. Locking knobs and adjustable limit stops are provided for all directions of movement.

Abstract: A mandrel assembly is usable with a hole saw and a drill bit. The mandrel assembly includes a body having a shank portion and an adapter receiving portion. The adapter receiving portion defines an adapter receiving cavity and including a first wall having a first detent hole extending therethrough. The mandrel assembly further includes a bit coupler secured to the body. The bit coupler is located within the adapter receiving cavity and defines a drill bit receiving portion. The drill bit receiving portion includes a bit receiving cavity and a second wall having a second detent hole extending therethrough. The mandrel assembly further includes an adapter configured to be received within the adapter receiving cavity, the adapter having an externally threaded portion configured to meshingly engage with a set of internal threads of the hole saw, the adapter further having a first detent groove defined in an outer surface thereof.

Abstract: A nail driving apparatus including a handle having a first and second end and a rod member having a first end permanently secured to a second end of the handle and a second end forming a striking surface, where the handle and the rod member are secured together so as to form a longitudinal axis. The apparatus further includes an elongated guide tube having a first end and a second end, where the rod member is slidably disposed within the guide tube. The handle further includes a tapered annular ring located about the rod member. The annular ring is operative for receiving the first end of the guide tube within the handle, and for temporarily securing the guide tube to the handle.