Abstract: A charging system includes an electric power tool (2) and a charger (1) having internal rechargeable batteries (6) and a controller (9) for monitoring the charge/discharge level of the batteries (6). The electric power tool (2) additionally includes a pair of charge terminals (13a, 14a) for carrying current to charge the batteries (6), a temperature terminal (15a) for outputting to the charger (1) data on the temperature of the batteries, and a data terminal (16a) for outputting to the charger data on the battery charge/discharge level from the controller (9). The charger (1) includes a pair of charge terminals (13b, 14b), a temperature terminal (15b), and a data terminal (16b) that are electrically connected to the corresponding tool terminals when the tool (2) is set on the charger for a charge.

Abstract: A roof molding for an automobile consists of an extruded mold product 10a in which a leg portion 11 and a decorative portion 15 formed on the upper end of the leg portion are integrally formed. A metal core member 12 is embedded in the leg portion. The leg portion is partially cut away in a range of a predetermined length from an end of the extruded mold product, in accordance with the depth of an end part of the groove of the roof, the metal core member in the vicinity of an end part 10b of the extruded mold product is cut away, and the end part from which the metal core member has been cut away is rearward bent by a bending process.

Abstract: A roof molding for an automobile consists of an extruded mold product 10a in which a leg portion 11 and a decorative portion 15 formed on the upper end of the leg portion are integrally formed. A metal core member 12 is embedded in the leg portion. The leg portion is partially cut away in a range of a predetermined length from an end of the extruded mold product, in accordance with the depth of an end part of the groove of the roof, the metal core member in the vicinity of an end part 10b of the extruded mold product is cut away, and the end part from which the metal core member has been cut away is rearward bent by a bending process.

Abstract: A protection arrangement for a battery charger of the type used to charge battery packs used for electromotive tools. A self-holding protector is arranged in the neighborhood of an inserting hole of the battery charger for receiving a storage battery pack 50 to be charged. This self-holding protector element includes two elements electrically connected in parallel. One of these two elements is a bimetal which opens when it heats or flows too much current. The other of the two elements is a positive characteristic thermistor (PCT) which generates heat when a current flows through it. When a battery pack being charged becomes over-charged and heats, the bimetal element of the protector opens, and charging current stops flowing. When the bimetal element opens, electric current flows through the PCT. This current causes the PCT to heat and maintain the bimetal element in its open condition.

Abstract: A fuel management system is provided for use with an internal combustion engine which utilizes gaseous fuel as the fuel source. A mass gas flow sensor is fluidly connected between the gaseous fuel source and the engine. A mass air flow meter is similarly provided in series with an air intake for the internal combustion engine and the outputs from both flow meters are provided as input signals to a microprocessor based control circuit. The control circuit calculates the air/fuel ratio of the combustible charge provided to the engine and generates appropriate output signals to a valve arrangement in series between the source of gaseous fuel and the internal combustion engine to vary the air/fuel ratio to obtain a desired engine performance as a function of the engine operating condition. An air/fuel ratio sensor is also in fluid communication with the exhaust gas stream from the engine and provides an output signal representative of the actual air/fuel ratio to the control circuit.

Abstract: A battery charger includes a transformer having a primary coil and a secondary coil, a switch for duty control of a current flowing through the primary coil of the transformer, a detector for detecting a value of a current flowing through the secondary coil of the transformer, and a secondary controller for receiving the detected value from the detector and for outputting a charge control signal. The pulse of the charge control signal is modulated in accordance with the detected value by the detector.

Abstract: An apparatus for controlling the amount of secondary air fed into an internal combustion engine includes means for controlling the response speed of a secondary air flow control means in accordance with the amount of exhaust gas emitted from the engine. Thus, the equivalent air-fuel ratio can be correctly controlled, without delay, in response to changes in the operating condition of the engine.

Abstract: An apparatus for controlling the amount of secondary air fed into an internal combustion engine which includes means for controlling the response speed of a secondary air flow control means in accordance with an electrical signal. This signal is generated by integrating the value of an intake air amount signal, which is generated by multiplying the rotational speed of the engine and the load of the engine, in an interval direction determined by an equivalent air-fuel ratio condition of the engine. Thus, the equivalent air-fuel ratio can be controlled with a response speed corresponding to the amount of the flow of the exhaust gas. Furthermore, excessive control of the equivalent air-fuel ratio can be prevented.

Abstract: Disclosed is an apparatus for controlling the amount of secondary air fed into an internal combustion engine. The apparatus includes an independent means for rapidly applying an absolute pressure signal to a secondary air flow control means, so that secondary air is rapidly supplied into the engine when the secondary air flow control means is being reset in its initial position, and then, next, a rich signal is applied. Thus, the equivalent air-fuel ratio can be correctly controlled, without delay, in response to changes in the operating condition of the engine.

Abstract: In a carburetor, a branch passage is connected to the fuel-air mixture passage for charging exhaust gases back into the fuel-air mixture. A control valve is positioned in the branch passage for regulating flow of the exhaust gases and a first spring biases the control valve into the closed position. A throttle valve in the fuel-air mixture passage is operatively coupled to the control valve by a linkage arrangement so that the two valves can be operated together. The linkage arrangement includes a second spring which permits movement of the throttle valve without corresponding movement of the control valve. Further, the linking arrangement provides a certain amount of play between the movement of the throttle valve and the control valve so that the operation of the control valve can be delayed relative to the opening movement of the throttle valve.