Abstract: The present invention is a fuel cell stack including at least one direct methanol fuel cell. A cathode manifold is used to convey ambient air to each fuel cell, and an anode manifold is used to convey liquid methanol fuel to each fuel cell. Tie-bolt penetrations and tie-bolts are spaced evenly around the perimeter to hold the fuel cell stack together. Each fuel cell uses two graphite-based plates. One plate includes a cathode active area that is defined by serpentine channels connecting the inlet manifold with an integral flow restrictor to the outlet manifold. The other plate includes an anode active area defined by serpentine channels connecting the inlet and outlet of the anode manifold. Located between the two plates is the fuel cell active region.

Abstract: A stack of direct methanol fuel cells exhibiting a circular footprint. A cathode and anode manifold, tie-bolt penetrations and tie-bolts are located within the circular footprint. Each fuel cell uses two graphite-based plates. One plate includes a cathode active area that is defined by serpentine channels connecting the inlet and outlet cathode manifold. The other plate includes an anode active area defined by serpentine channels connecting the inlet and outlet of the anode manifold, where the serpentine channels of the anode are orthogonal to the serpentine channels of the cathode. Located between the two plates is the fuel cell active region.

Abstract: A stack of direct methanol fuel cells exhibiting a circular footprint. A cathode and anode manifold, tie-bolt penetrations and tie-bolts are located within the circular footprint. Each fuel cell uses two graphite-based plates. One plate includes a cathode active area that is defined by serpentine channels connecting the inlet and outlet cathode manifold. The other plate includes an anode active area defined by serpentine channels connecting the inlet and outlet of the anode manifold, where the serpentine channels of the anode are orthogonal to the serpentine channels of the cathode. Located between the two plates is the fuel cell active region.

Abstract: A hose storage device has a tub shaped base and a hemispherical top that is attached to the base by a clamshell hinge. The storage device can be anchored in place in a yard by U-shaped stakes that are inserted through pairs of openings. The storage device is decorated to appear like a fanciful character statue, a galapagos tortoise, for example, so that it can remain in the yard as a lawn or garden decoration. A center post in the tub provides a bearing surface for a reel which includes a handle to facilitate coiling and fixtures to which the hose can be connected so that it need never be removed from the reel. A downwardly extending nipple provides a place to connect a short length of hose to a spigot, a clearance passageway being afforded by an inwardly extending reinforcing rib in the tub.

Abstract: Lawn edging is made in discrete, rigid one foot sections each with an integral water conduit with sprinkling orifices, each section having an integral male fitting at one end and a female fitting at the other. The two fittings are oriented in a vertical direction and define a pivot axis for adjacent edging sections. The conduit is generally trapezoidal in shape and has a flat upper surface which serves as a force-receiving surface. A special section has a hose attachment to permit distribution of water in one or both directions from the special section. A bottom section is divided into subsections with each section having insertion facilitating elements including v-shaped points and a sharpened leading edge and removal inhibiting elements including teeth formed on a v-shaped tangential flange.