Abstract: A versatile mobile utility cart or vehicle using either tracks, wheels or both for suspension and steering with propulsion coming from but not limited to an internal combustion engine or an electric motor. The vehicle is meant to be a utility workhorse with the ability to load and unload itself as well as drag or carry materials. The vehicle can be configured in many ways to do many tasks with the main feature being labor savings. One of the unique features of the vehicle is a loading system called a fork and foot system. For transport the forks and feet system can be raised or detached individually or as a system, this is beneficial when unloading. The foot may remain attached and used for stability. Detaching the fork and foot system as a system allows the vehicle to be used for other tasks including but not limited to: a dump vehicle; a skidder; a reel carrier; a fork lift/carrier; and a prime mover or base for brush chippers, stump cutters, tree spades and more.

Abstract: A cutting tooth for use with a stump cutting apparatus wherein the cutting tooth has a removable and replaceable cutting bit. The cutting bit is removably and nonrotatably secured to a head of an elongated shank with the shank secured to a mounting block or pocket of a stump cutting tool. A support member having an indexing surface is also removably and nonrotatably secured to the head of the elongated shank. Accordingly, the support member enables indexing the cutting bit to expose and use a plurality of cutting edges located on the periphery of the cutting bit.

Abstract: A cutting tool for use with a stump cutting apparatus of the type utilizing a cutting wheel or drum rotating about a rotational axis wherein the cutting tool is removably attached to the cutting wheel or drum. The cutting tool includes a tool holder removably secured to the cutting wheel typically through a plurality of fasteners extending through a plurality of apertures located in the base portion of the tool holder. The tool holder includes a tool portion having a boss and a neck extending from the base portion of the tool holder to the boss. The boss being a generally annular member having an aperture extending between first and second ends wherein a cutting tool is secured with in the aperture. The cutting tool generally includes a head portion, a shank and a cutting tip.

Abstract: A stump cutting tool for use with a stump cutting apparatus having a rotatable cutting wheel or drum having at least one cutting tool mounted to the wheel or drum. The cutting tool includes a tool holder or pocket used to secure a separate cutting tooth. The pocket or tool holder includes the least one bore extending therethrough for use in securing the cutting tool to the cutting wheel or drum.

Abstract: A stump cutting tool for use with a stump cutting apparatus including a rotatable cutting wheel having a pair of side surfaces. A mounting block or pocket forms part of the structure that secures the cutting tool to the cutting wheel. The cutting tool includes a cutting tooth and a tooth holder. The tooth holder includes an elongated shank and a head located adjacent one end of the shank. A bore extends through the head of the tooth holder. The cutting tooth includes an elongated shank with a head portion located adjacent one end thereof. A cutting bit is attached to the head portion. The shank of the cutting tooth disposed and secured within the bore.

Abstract: A cutting tooth for use with a stump cutting apparatus wherein the cutting tooth has a removable and replaceable cutting bit. The cutting bit is removably and nonrotatably secured to a head of an elongated shank with the shank secured to a mounting block or pocket of a stump cutting tool. A support member having an indexing surface is also removably and nonrotatably secured to the head of the elongated shank. Accordingly, the support member enables indexing the cutting bit to expose and use a plurality of cutting edges located on the periphery of the cutting bit.

Abstract: A stump cutting tool for use with a stump cutting apparatus having a rotatable cutting wheel or drum having at least one cutting tool mounted to the wheel or drum. The cutting tool includes a tool holder or pocket used to secure a separate cutting tooth. The pocket or tool holder includes the least one bore extending therethrough for use in securing the cutting tool to the cutting wheel or drum.

Abstract: The present invention is an extractable fastener and a method of use thereof used with a pocket or mounting block of a tool holder used to secure a cutting tooth to a cutting wheel of a stump cutting apparatus. The extractable fastener has a head portion, a shank portion having a threaded portion and an end face. The end face includes an engagement portion that receives a suitable tool whereby force applied to the tool rotates the broken portion of the fastener to remove it from the threaded bore on the pocket or mounting block.

Abstract: A system for the humidification of polymer electrolyte membrane fuel cells, the system comprising a first layer and a second layer; wherein the first layer comprises a porous material (11) substantially coincident with a first surface of a polymer electrolyte membrane fuel cell (10); wherein the second layer comprises a non-absorbent material (12) substantially coincident with the first layer; and wherein perforations in the second layer allow air to flow through the first and second layers to a cathode (17) of the polymer electrolyte fuel cell.

Abstract: A system for the humidification of polymer electrolyte membrane fuel cells, the system comprising a first layer and a second layer; wherein the first layer comprises a porous material (11) substantially coincident with a first surface of a polymer electrolyte membrane fuel cell (10); wherein the second layer comprises a non-absorbent material (12) substantially coincident with the first layer; and wherein perforations in the second layer allow air to flow through the first and second layers to a cathode (17) of the polymer electrolyte fuel cell.

Abstract: A stump cutting tool for use with a stump cutting apparatus having a rotatable cutting wheel or drum having at least one cutting tool mounted to the wheel or drum. The cutting tool includes a tool holder or pocket used to secure a separate cutting tooth. The pocket or tool holder includes the least one bore extending therethrough for use in securing the cutting tool to the cutting wheel or drum.

Abstract: An electrochemical cell (1) comprises an anode (2), a solid cathode (3) and an electrolyte (4). The electrolyte comprises an electrochemically reactive conductive salt, an organic liquid phase comprising one or more organic compounds; and less than 0.25 M of all ionically charged additive, distinct from the electrochemically reactive conductive salt. The additive comprises a conductive salt which in use is not electrochemically reactive and which has a nitrogen containing cation in a sufficient quantity that conductivity is improved and percentage material utilisation of the cathode is improved at increased discharge rates as compared with a cell using an electrolyte which does not contain the additive. An improvement of approximately 10% in conductivity is achieved for a cell according to the invention using an electrolyte (c) with an additive.

Abstract: A multi-element fuel cell system comprises a substantially cylindrical former (2), a rechargeable hydrogen fuel source (3) and a plurality of fuel cell elements (4). The former comprises a series of interconnecting modules each perforated to allow passage of fuel to the fuel cell elements. Each fuel cell element (4) is positioned radially outwardly of the former (2) and is provided with channels, arranged to receive and direct fuel gas, an anode current collector, a gasket (12), a first diffusion backing layer (8), a membrane electrode assembly (10), a second diffusion backing layer (9) and a cathode current collector (11). The cathode current collector applies even compression to the fuel cell element, such that good electrical contact is maintained within each fuel cell element. The fuel cell elements are electrically connect in series via respective anode and cathode current collectors and then capped at each end of the former for connection to equipment.

Abstract: A stump cutting tool for use with a stump cutting apparatus having a rotatable cutting wheel or drum having at least one cutting tool mounted to the wheel or drum. The cutting tool includes a tool holder or pocket used to secure a separate cutting tooth. The pocket or tool holder includes the least one bore extending therethrough for use in securing the cutting tool to the cutting wheel or drum.

Abstract: A circuit breaker having a contact assembly with a double pivot arrangement. The moving arcing and main contacts provide a smooth surface for meeting the lower arcing contact and the lower main contacts, each mounted on a separate semi-stationary lower blade. The lower arcing contact is positioned higher than the lower main contact, making the arcing contact the last to separate from the moving contact. An arc horn is mounted adjacent the moving contacts to provide a path for movement of the arc from the upper contact into the arc stack assembly. The arc horn has three fingers, each of which passes through the cutaway portion of each arc plate of the arc stack assembly upon the contacts separating.