Abstract: The invention provides electrolytes for the electrochemical generation of nitrogen gas by anodic oxidation of triazole and tetrazole derivatives. Electrolytic cells incorporating these electrolytes are also disclosed. The nitrogen gas so produced may be useful to actuate mechanical transducers in fluid dispensers.

Abstract: The invention provides, in general, a reusable gas driven fluid transportation apparatus having subsystems or components that are adapted to be reused, replaced and/or recycled. All or a portion of the subsystems or components of the apparatus may be reused by replacement of parts (such as the gas generating unit) or by replacement of consumed components such as gas generating reactants, batteries or fluid. The apparatus may be used, for example, for applying lubricant to machine components such as a bearing.

Abstract: The invention provides electrolytes for the electrochemical generation of nitrogen gas by anodic oxidation of triazole and tetrazole derivatives. Electrolytic cells incorporating these electrolytes are also disclosed. The nitrogen gas so produced may be useful to actuate mechanical transducers in fluid dispensers.

Abstract: The invention provides methods and devices for the electrochemical generation of nitrogen from organic nitrogen compounds, such as hydrazides (RCONHNH2), the corresponding organic hydrazino-carboxylates (RCO2NHNH2) and amino-guanidine salts (e.g. aminoguanide bicarbonate H2NNHC(NH)NH2.H2CO3). In the hydrazides and hydrazino-carboxylates, “R” may be an alkyl, alkenyl, alkynyl or aryl group, in some embodiments methyl, ethyl, or benzyl. The alkyl, alkenyl and alkynyl groups may be branched or unbranched, substituted or unsubstituted.

Abstract: An auto-electrolyte hydrogen generating reactor having a plurality of cells. The cells are stacked in series in an electronically non-conductive housing. Each cell is separate from its neighbour by electronically conductive bipolar walls. Each cell comprises an anode with a metal whose standard oxidation potential is above that of hydrogen in the same electrolyte. There is a solid electrolyte and a cathode. The cathode is an inert electronic conductor with a surface in contact with a solid electrolyte. The surface is electrochemically catalytic for the formation of hydrogen.

Abstract: An apparatus to lubricate a main component. There is an idler in contact with the main component and an inlet in the idler to receive lubricant. There is at least one outlet in the idler at a point where the idler contacts the main component. A passageway in the idler links the inlet and the outlet. Lubricant can be forced into the inlet, through the passageway to the outlet so that lubricant is thus applied from the idler to the main component. The invention finds particular application in the lubrication of gear wheels and chains where the idler is a sprocket able to engage with the gear wheel or chain.