Abstract: An object of the present invention is to provide a hot air space heater that is capable of blowing hot air out of a whole wide hot air outlet provided at a front plate of a frame of the heater while making the heater smaller in depth. A burner is arranged so as to be close to one side of the frame. A heat-discharge portion is constructed on the burner. On the other side of the frame, an accessory-receiving space is defined side by side with the heat-discharge portion. Between the hot air outlet provided at the front plate of the frame and a wall portion positioned in front of the accessory-receiving space, an extended air feed space is defined. Air fed by a fan into a duct structure is heated while passing through between a plurality of heat-exchange pipes. The air is blown against a front wall of the duct structure and a plate-like member of an air guide provided on a rear side of louvers. Heated air blown against the front wall flows out forward through a first air flow path above the plate-like member.

Abstract: An object of the present invention is to provide a hot air space heater that is capable of blowing hot air out of a whole wide hot air outlet provided at a front plate of a frame of the heater while making the heater smaller in depth. A burner is arranged so as to be close to one side of the frame. A heat-discharge portion is constructed on the burner. On the other side of the frame, an accessory-receiving space is defined side by side with the heat-discharge portion. Between the hot air outlet provided at the front plate of the frame and a wall portion positioned in front of the accessory-receiving space, an extended air feed space is defined. Air fed by a fan into a duct structure is heated while passing through between a plurality of heat-exchange pipes. The air is blown against a front wall of the duct structure and a plate-like member of an air guide provided on a rear side of louvers. Heated air blown against the front wall flows out forward through a first air flow path above the plate-like member.

Abstract: A stack-equipped far infrared space heater capable of permitting a space of a relatively large volume through which hot air for fan forced space heating fails to carry well to be satisfactorily heated by far infrared rays. The space heater includes a combustion cylinder mounted on a burner arranged in a housing, a plurality of heat-exchange pipes arranged on the combustion cylinder, and a cylindrical exhaust structure arranged on the heat-exchange pipes. A guard is arranged on the housing so as to surround the combustion cylinder and cylindrical exhaust structure and mounted thereon with a top plate, which is formed at a central portion thereof with an opening. An upper wall of the cylindrical exhaust structure is fitted in the opening and securely fixed to the top plate through fixtures. A stack is connected to a side wall of the cylindrical exhaust structure so as to upwardly extend therefrom through a bent cylinder.

Abstract: An intake/exhaust type combustion equipment capable of permitting oxygen in a proper amount required for stable combustion to be constantly fed to the combustion equipment, irrespective of outdoor air conditions. An intake air temperature detection sensor is arranged for detecting a temperature of combustion air fed to a burner by a combustion air feed fan and an oxygen data output element is arranged for outputting oxygen data corresponding to an oxygen concentration in combustion air depending on the temperature detected by the intake air temperature detection sensor. The oxygen data output element outputs oxygen data on the oxygen concentration or a variation in oxygen concentration based on the detected temperature.

Abstract: An equipment control panel (1) is provided which is capable of preventing malfunction of a control unit (11) arranged in a casing (5) of an equipment or a failure in operation thereof due to discharge of static electricity. An insulating spacer (33) including a conductive shield layer (35) is arranged on a flexible circuit board (15) formed on a main section (15B) thereof with a circuit pattern including contact sections. An insulating cover sheet member (45) is laminated on the insulating spacer (33). The conductive shield layer (35) is arranged so as to be substantially opposite to a circuit pattern (21). The conductive shield layer (35) is so formed that an outer peripheral edge thereof is positioned inside an outer peripheral edge of each of a main section (33B) of the insulating spacer (33) and the insulating cover sheet member (45).

Abstract: An equipment operation panel capable of being readily mounted on an outer surface of an equipment and facilitating connection thereof to a control unit in the equipment. A first flexible circuit board is formed on a front surface thereof with contacts of switches and a contact of a variable resistor and provided thereon with light emitting diodes. The first flexible circuit board includes a lead-out section from which a connection wire pattern is led out. A spacer layer is laminated on the circuit board. A second flexible circuit board is laminated on the spacer layer and provided thereon with contacts of switches and a movable-side electrode of the variable resistor. A cover sheet member is laminated on the second flexible circuit board. Thus, the equipment operation panel is constructed into a laminate structure and mounted on an outer surface of a casing of the equipment through an adhesive layer.

Abstract: A tank structure of a hot-water supply unit capable of permitting tap water under a high pressure to be supplied thereto without using any safety mechanism. An inner barrel of a tank body is formed by rounding or bending a flat plate of an increased thickness by rolling and then joining both lateral ends of the plate to each other by welding. The inner barrel and an outer barrel are joined together through a joint ring of a thickness between a thickness of the inner barrel and that of the outer barrel. Thus, the tank body can be readily manufactured using any specific equipment.

Abstract: An oil burner capable of ensuring normal combustion of quality-deteriorated kerosine. A burner body including a vaporization section is fed with fuel and air from a fuel pump and an air fan, respectively. A combustion control unit controls the fuel pump and air fan to control a combustion quantity in the burner body. The combustion control unit increases the combustion quantity to a combustion level sufficient to permit tar collected in the vaporization section to be burned at a predetermined time interval. Also, the combustion control unit keeps the combustion quantity increased to the combustion level for a predetermined period of time which permits tar collected in the burner body prior to an increase in combustion quantity to the combustion level to be substantially exhausted. This permits the combustion quantity to be intermittently increased, to thereby ensure substantial exhaustion of tar collected in the burner body.

Abstract: A hair tonic containing an extract of a plant of the family Julianiaceae such as Juliania adstringens, Amphipterygium adstringens or Orthopterygium huancuy as an active ingredient. The bark of the plant is used as it is or in pulverized or ground form and extracted by using a solvent which does the human body no harm. The extract is so added to the hair tonic that its content on dry basis becomes 2.5.about.25% (w/w) to the whole quantity of the hair tonic.

Abstract: A discharge-type capable of accomplishing ignition of a wick at a position convenient or suitable for the ignition. Spark discharge for ignition of a wick is started in the course of raising of the wick. Thus, any possible variation in height of the wick and deformation of the wick due to wear do not adversely affects ignition of the wick, because the ignition is carried out when a gap between the wick being raised and the discharge electrode is rendered optimum for the ignition. This permits a dry cell to be satisfactorily used as a power supply for the ignition.

Abstract: A non-open fire type cooking burner capable of exhibiting endurance, workability and safety. Heat combustion or exhaust gas produced by combustion in a burner body are guided to a heat exchanger made of metal and discharged through an exhaust pipe to an exterior of a room, respectively. The heat is then radiated to a ceramic plate arranged above the heat exchanger for cooking. An air shifter provided with an air-direction change-over damper is arranged so as to change over flowing of air, to thereby permit the cooking burner to be applied to space heating as well as cooking.

Abstract: An oil burner capable of being prevented from being locally heated by combustion in a combustion cylinder structure. A guide plate is arranged at an upper region in a housing of the oil burner for guiding combustion gas emitted from the combustion cylinder structure toward a front opening of the housing. Also, a baffle is connected to a front portion of the guide plate so as to downward extend therefrom, to thereby divert combustion gas in both lateral directions. The baffle plate is formed at a portion thereof, except a central portion thereof, with through-holes or cutouts through which the diverted combustion gas is discharged forwardly and outwardly from the oil burner.

Abstract: A control system for a burner is disclosed which detects oxygen concentration in a room using an oxygen sensor, to thereby supply an abnormality detecting signal to at least one of an alarm and a combustion reducing device to actuate it when oxygen concentration is lowered below a predetermined set value. A first comparing device and a reference value storing device are used to cause maximum oxygen concentration detected to be stored as an oxygen concentration reference value in the storing device. A second comparing device compares the deviation between the oxygen concentration reference value and a detected oxygen concentration value with an abnormality judging reference value, to thereby generate the abnormality detecting signal when the deviation is larger than the reference value. The control system is capable of effectively detecting a low oxygen concentration condition without being affected by an ambient temperature.

Abstract: A multi-cylinder combustion structure for an oil burner capable of permitting a red-heated section of a double combustion cylinder to be uniformly red-heated while ensuring complete combustion irrespective of the amount of combustion, to thereby exhibit satisfactory aesthetic and handling characteristics. The structure includes a central cylinder which is provided with a plurality of circumferentially-extending strip-like perforated sections and a plurality of circumferentially-extending strip-like non-perforated sections in a manner to vertically alternate with one another.

Abstract: A process and apparatus for monitoring and ensuring safe operation of unvented kerosene heaters in indoor spaces detects the hazard of incomplete combustion and the concomitant reduced O.sub.2 and increased CO.sub.2 levels in the indoor air. CO.sub.2 level in the indoor air is monitored quickly and accurately, - regardless of the burner's flame height. This is achieved by sensing O.sub.2 level in the burner exhaust which is used as a measure for monitoring the CO.sub.2 level in the indoor air and as a control signal. During burner operation outside a predetermined flame height range, the O.sub.2 detection is used both for restoring a normal heating condition and for monitoring operation at minimum flame height and to generate a warning signal and a delayed automatic shut-down of the burner.

Abstract: A hot water circulating system capable of constantly ensuring smooth and effective supply of water from an open tank to a water boiler without causing an air lock phenomenon irrespective of a variation in operating conditions of the system. In the hot water circulating system, a connection pipe is arranged between the open tank and a second communication pipe for interconnecting the water boiler and a radiator so as to directly feed water of a low temperature from the open tank to the second communication pipe.