Abstract: A lighting device comprises a valve mechanism for opening and closing a path, through which a gas is supplied from a gas tank to a jetting nozzle, a piezo-electric unit for generating a discharge voltage for lighting the gas, and an operation member, which can slide and drives the valve mechanism and the piezo-electric unit in order to carry out a lighting operation. A locking member capable of moving between a position for locking and a position for lock release works such that, when the locking member is set at the position for the locking, the locking member may lock the lighting operation of the operation member, and such that, when the locking member is set at the position for the lock release, the locking member may allow a single lighting operation of the operation member. A restraining member allows successive lighting operations of the operation member when the locking member is moved to the position for the lock release.

Abstract: An improved ignition system for igniting combustible gas used in cooking and other types of devices. The ignition system includes an ignition mechanism having a spark generator that is electrically connected to two electrodes. When the spark generator is activated, a spark is produced between the electrodes which ignites combustible gas emanating from a burner. The ignition system also includes a lighter tube assembly having a lighter tube that extends from a main burner to secondary burners. The lighter tube is connected to a dual valve which provides gas flow to both the lighter tube and to the main burner. An ignition mechanism is provided which ignites the gas emanating from both the main burner and lighter tube, thus enabling the secondary burners to subsequently be ignited via the lighter tube.

Abstract: In a boiler plant for heat generation, which consists essentially of a combustion space and of a burner acting on the head side of the combustion space, this combustion space is divided into two parts (17,102a) by the insertion of an annular disk (103). A limited internal backflow zone (24) forms in the front part (17) in interaction with this disk (103). This disk (103) then causes external backflow zones (106) fed by recirculated flue gases (30) to form within the front part (17) of the combustion space, the flue gases of said external backflow zones being introduced into the combustion process of the burner, said backflow zones (24, 106) being in each case separated locally from one another. Better flame stabilization, lower pulsations and markedly lower pollutant emissions can thereby be achieved when the burner is operating.

Abstract: A barbecue grill has a grill burner and a cooking grate disposed within a housing with an upper portion pivotally mounted on a lower portion. Means is provided for supporting the housing upper portion in a partial open pivotal position. A smoke incinerator is mounted on the housing upper portion, and has a burner for generating a flame. Smoke is converted to invisible exhaust gases by heating the smoke with the flame. A grill burner locking means is provided, which will prevent unignited fuel from accumulating in the housing in the event that the incinerator burner fails to ignite.

Abstract: In a burner for operating a combustion chamber, which burner essentially comprises a swirl generator (100), a transition piece (200) arranged downstream of the swirl generator, and a mixing tube (20), transition piece (200) and mixing tube (20) forming the mixing section of the burner and being arranged upstream of a combustion space (30), a pilot-burner system (300) is arranged in the lower region of the mixing tube (20), which pilot-burner system (300), at minimized pollutant emissions, stabilizes the flame front, in particular in the transient load ranges.

Abstract: A burner construction having a body portion fabricated from a base material and coating material covering the base material. The base material is formed of copper or copper alloy having a conductivity of no less than about 100 watts/meter/.degree. C. Alternatively the base material can be silver. The coating material comprises nickel or nickel based alloy which can be an autocatalytic plating.

Abstract: The method disclosed herein relates to sculpting an image on a wax article such as a candle. The sculpting is done by pressure blasting entrained cutting grit through a mask or a sequence of masks. If a sequence of masks is sued to form the sculpted image, a sequence of colored pigments are entrained in the blast to impart different colors to the part of the image exposed by each mask in the sequence. A wax article of manufacture is produced having a concave sculpted surface with embedded colored cutting grit occupying predetermined portions of the image.

Abstract: A combustion control method includes the steps of providing an oxygen sensor within a furnace or at a flue of the furnace, detecting an oxygen concentration of exhaust gas, and controlling an air ratio. A regenerative combustion apparatus includes a regenerative combustion burner, an oxygen sensor disposed in an air supply and gas exhaust passage of the burner. A combustion control method and apparatus includes the steps of switching an electrical voltage imposed on an oxygen sensor between a first electrical voltage and a second electrical voltage near 0 V, conducting an air ratio control when the imposed voltage is at the first voltage and monitoring unburnt components included in exhaust gas when the imposed voltage is at the second voltage.

Abstract: In a combustion chamber of a gas-turbine group which essentially comprises a mixing section (2) for premixing an air/fuel mixture (16) and a downstream combustion space (3), a jump (5) in cross section is provided at the transition between the two said flow sections (2/3). This jump (5) in cross section induces the cross section of flow of the combustion space (3) and at the same time forms outer recirculation zones (10) in the combustion space (3). Flow passages (4) branch off in the end phase of the mixing section (2), which flow passages (4) then lead into the outer recirculation zones (10). A portion (9) of the air/fuel mixture flows out of the mixing section (2) through these flow passages (4) and into the outer recirculation zones (10), the portion being enriched here with an additional fuel (6). This fuel (6) is introduced via a circular line (19) provided with bores (18).

Abstract: A premix gas burner has a flat, composite burner plate formed by a rear flat plate having a first set of apertures and a forward flat and thinner plate having a second set of apertures of less diameter than the first set of apertures. The plates are connected to form a composite burner plate at the front end of a burner tube. A pilot tube extends through the burner tube and a pilot flame ignitor includes an insulated center electrode and a spirally wrapped grounding electrode electrically engaging the I.P. of the pilot tube to form an electrical ground. The electrodes spark to ignite a pilot flame which in turn ignites the larger burner flame.

Abstract: A gas burner assembly has a sheet metal base section having a generally constant wall thickness and a sheet metal burner cap also having a generally constant wall thickness. The burner cap includes a plurality of burner ports and the burner cap is removably secured to the base section to define a gas chamber. The removability of the burner cap allows easy cleaning of the burner ports as well as the rest of the burner assembly. The base section is secured to the cook top by a twist lock arrangement which simplifies removal of the complete burner assembly without the need for tools when cleaning or maintenance is required.

Abstract: An apparatus is disclosed for providing more uniform lighter spark wheel actuation. Uniform actuation is facilitated in the apparatus according to the invention by reducing the resistance encountered from the rotation of the flint on its axis due to the screw-thread-like action of the cutting member on the flint. In an exemplary embodiment of the invention, a non-rotatable pyrophoric flint is utilized which illustratively includes a body having a non-circular cross section.

Abstract: A frame for a tabletop barbecue grill including a pair of supporting panels respectively mounted between legs of a frame of a tabletop barbecue grill, which can firmly and stably support a fire bowl of the tabletop barbecue grill and securely hold a removable ash catcher, whereby avoiding overturn thereof.

Abstract: A method of operating a pre-mix power burner assembly. The method comprises the steps of: using a fan to supply and control combustion; mixing fuel gas and primary air together; introducing the mixture into secondary air in a combustion zone; and relieving pressure on the exterior of the fan near the fan shaft to the interior of the fan.

Abstract: An orientation device applied to a lighting apparatus comprising a fixed support (1) to which is attached in a rotatable manner a mobile support (2) comprising a plate (3) and an ogive wall (4) to the inside of which a spotlight (5) with the relative light socket (6) is fixed. The rotatable connection (7) between the mobile support (2) and the fixed support (1) makes it possible to extract the first from the second. The fixed support (1) comprises an external ring (8) in which an internal ring (9) engages circumferentially in a sliding manner. To the internal ring (9) is fixed the end (11a) of a rack (11) which is curved in a circular arc and which meshes with a pinion (14) connected in a rotatable and frictioned manner to the mobile support (2). The extraction of the light is easily carried out from the outside without having to dismount the lamp or intervene on the locking means and, furthermore, can be motorised.

Abstract: A modular system is provided that has a fixture that will accept substantially any electrical device and can be plugged into any one of a plurality of fixture supports, and similarly unplugged, to permit removal, replacement, and/or reorientation with relative ease to obtain any desired configuration of electrical devices without the need for repeated rewiring.

Abstract: A disposable 2-step safety lighter includes a fuel lever and spark wheel installed in different positions and completely separate. The working direction of both devices are different, with the fuel lever being pivotally mounted about a horizontal axis and the spark wheel being rotatably mounted about a vertical axis. Therefore, the lighter must be operated in two steps precisely or it can not be lit up, thereby increasing the difficulty of operation so as to prevent children from playing with the lighter ignorantly.

Abstract: A lighting fixture with infra-red responsive motion detector unit incorporated into the fixture design. The lighting fixture includes a motion detector housing forming an integral part of the lighting fixture body and having a generally convexo-convex shape fitting in with the decorative styling of the fixture body. The bottom portion of the housing has a bottom wall containing an azimuthally extending lens aperture. A plastic lens member is positioned in the lens aperture and is formed to conform to the convex bottom wall so that the lens member appears to form a continuous portion of the wall. The lens member defines a plurality of Fresnel lenses which are disposed to direct infra-red radiation from an object in their aggregate field of view to an infra-red sensor mounted within the housing.

Abstract: A heat recovery apparatus for increasing the efficiency of a furnace having a cold air return, a burner, a hot air outlet, and a hot air exhaust. The heat recovery apparatus comprising a finned coiled heat exchanger located in the exhaust and having a water inlet and a water outlet. The water outlet connected via a silicone tube to a second water inlet on a core heat exchanger located in the cold air return. The core heat exchanger having a water outlet connected via second silicone tube to a water reservoir tank. The water reservoir tank containing water and a pump submerged within the water. The pump having a third water inlet and a third water outlet. The third water outlet being connected via a third silicone tube to the water inlet of the coiled heat exchanger. The heat recovery apparatus increasing the efficiency of a non-high efficiency furnace.

Abstract: A concept for a support stand adapts an Asian WOK to a Western kitchen range. The stand provides an upper ring to receive a round bottomed WOK; the ring has sufficient diameter to accommodate the WOK securely in the stand. The base of the stand adapts to prior art drip pans placed in heating wells, where the well has gas or electrical heating elements located according to the type of range, and thus anchors the stand to the kitchen range top.A second concept modifies existing drip pans to provide both the functions of drip pan and support stand in a single, combined support stand. This stand replaces existing stands and drip pans and anchors the WOK to the kitchen range top.A third concept converts a prior WOK fire ring into a trivet allowing use of the WOK at a dinner table.