Abstract: Apparatus for reminding a person to perform a plurality of periodically repeating tasks includes a first and a second user-accessible interface each having at one least task switch. A first and a second signal device each correspond to the respective first and second user-accessible interfaces. A surface supported by the apparatus can be imprinted with first and second task identifications which are aligned proximate to the corresponding signal devices and user interfaces. The apparatus includes an electronic processor configured to set a first alarm interval and a second alarm interval in response to the at least one task switch of the respective first or second user-accessible interface being accessed by a user a single time. The processor measures the passage of time using an electronic timing device and activates the first or second signal device when the measured passage of time exceeds the respective first or second alarm interval.

Abstract: Apparatus for reminding a person to perform a plurality of periodically repeating tasks includes a first and a second user-accessible interface each having at one least task switch. A first and a second signal device each correspond to the respective first and second user-accessible interfaces. A surface supported by the apparatus can be imprinted with first and second task identifications which are aligned proximate to the corresponding signal devices and user interfaces. The apparatus includes an electronic processor configured to set a first alarm interval and a second alarm interval in response to the at least one task switch of the respective first or second user-accessible interface being accessed by a user a single time. The processor measures the passage of time using an electronic timing device and activates the first or second signal device when the measured passage of time exceeds the respective first or second alarm interval.

Abstract: A proton exchange membrane fuel cell power system for producing electrical power is described and which includes a plurality of discrete fuel cell modules having at least two membrane electrode diffusion assemblies, each of the membrane electrode diffusion assemblies having opposite anode and cathode sides; a pair of current collectors are individually disposed in juxtaposed ohmic electrical contact with opposite anode and cathode sides of each of the membrane electrode diffusion assemblies; and individual force application assemblies apply a given force to the pair current collectors and the individual membrane electrode diffusion assemblies. The proton exchange membrane fuel cell power system also includes an enclosure mounting a plurality of subracks which receive the discrete fuel cell modules. Additionally, a control system is disclosed which optimizes the performance parameters of the discrete proton exchange membrane fuel cell modules.

Abstract: A proton exchange membrane fuel cell power system for producing electrical power is described and which includes a plurality of discrete fuel cell modules having at least two membrane electrode diffusion assemblies, each of the membrane electrode diffusion assemblies having opposite anode and cathode sides; a pair of current collectors are individually disposed in juxtaposed ohmic electrical contact with opposite anode and cathode sides of each of the membrane electrode diffusion assemblies; and individual force application assemblies apply a given force to the pair current collectors and the individual membrane electrode diffusion assemblies. The proton exchange membrane fuel cell power system also includes an enclosure mounting a plurality of subracks which receive the discrete fuel cell modules. Additionally, a control system is disclosed which optimizes the performance parameters of the discrete proton exchange membrane fuel cell modules.

Abstract: A cursor movement control key and electronic keyboard for a computer having a video display incorporates a force-sensitive resistor having a junction resistance which varies inversely with pressure applied thereto. The external key cap engages an actuator which bears against the force-sensitive resistor. The actuator has a plurality of four pads which bear against respective electrode regions of the force-sensitive resistor. The pads are positioned at the 0.degree., 90.degree., 180.degree., and 270.degree. positions. The actuator mounts relative to a keyboard mounting plate. At least one of the actuator and mounting plate include opposed lateral projections which engage relative to the other of the actuator and mounting plate to both, a) retain the actuator to the mounting plate, and yet b) allow clearance for tilting movement of the actuator relative to the mounting plate.