Patents Examined by Carroll Dority
  • Patent number: 6053727
    Abstract: The invention relates to the field of energy and is directed to a child-proof gas lighter, i.e. the gas lighter in which means for spark-forming neutralization are combined with a gas ignition mechanism. The gas ignition means comprises a gearwheel secured to a spigot and corrugated wheels positioned on a shaft which has a central portion on which the gearwheel is loosely positioned and which is formed as a polyhedron, and end portions to which the corrugated wheels are secured and which are cylindrical and are disposed within openings of brackets of the lighter body or of a holder of a spring-pressed flint. The shaft is mounted within the bracket openings so as to move along a direction of the flint spring action. An opening of the gearwheel is polyhedral, whereby a maximum diameter of the shaft in the area of the gearwheel installation is less than a minimum diameter of the opening of the gearwheel spigot.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: April 25, 2000
    Inventors: David Vakhtangovich Potskhishvili, Karlo Vakhtangovich Potskhishvili
  • Patent number: 6053165
    Abstract: A low cost prefabricated fireplace is provided with an open-ended fireplace box which requires no outer sheet metal shroud or housing as employed in the prior art sheet metal fireplaces. The novel fireplace box has at least five walls which consist substantially of insulating reinforced ceramic fiber (RCF) material and a binder. A modular burner system is removably mounted on the bottom wall of the fireplace box and a floor panel is mounted on the modular burner system forming an air chamber below the floor panel in the fireplace box. A decorative surround trim is attached to the open end of the fireplace box which serves to support fixed or operable glass doors. A log set which may include a log burner is mounted above the floor panel which supports a decorative log set. Apertures are made in the top sides or of the fireplace box to accommodate an air supply and/or an exhaust stack.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: April 25, 2000
    Assignee: Heat-N-Glo Fireplace Products, Inc.
    Inventors: Gary Lee Butler, David Charles Lyons, Ronald John Shimek, Robb Edward Bennett
  • Patent number: 6050811
    Abstract: A hand held, flammable gas igniter includes a handle with a thumb activated trigger extending, out of the handle top, a child safety lock mounted in the handle bottom, a cylinder filled with a flammable gas enclosed within the handle and a hollow tube extending forward from the handle to deliver the gas, when ignited, to a desired location, such as charcoal in a barbecue or wood in a fireplace. When the child safety lock is activated the trigger is released so that it can move downward and forward into the handle causing an L-shaped rocker to pivot forward, opening a gas flow valve on the cylinder, delivering the flammable gas to the end of the hollow tube. The movement of the trigger also activates a piezoelectric spark generator, delivering an igniting spark to the gas at the end of the tube.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: April 18, 2000
    Assignee: Duraflame, Inc.
    Inventor: Matthew Stein
  • Patent number: 6050259
    Abstract: A direct vent gas fireplace has a combustion air supply duct extending down the back wall, on the outside of the housing back wall. It is connected to the firebox by a duct assembly with a flange that connects to the housing and two ducts that connect to the firebox. The supply duct is located laterally between two cooling air ducts that lead from the cool air zones at the bottom outer corners of the housing to a cooling air plenum inside the top of the housing. Inside the cooling air plenum and the cooling air ducts are a room air plenum and room air circulating space for the circulation of room air to be heated. This provides a compact construction with adequate wall cooling without the need for additional thermal insulation.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: April 18, 2000
    Assignee: R-Co Inc.
    Inventor: Russell E. Reyher
  • Patent number: 6047694
    Abstract: This invention relates to a cooking enhancement system for retarding excessive flame and creating a burst of spray to steam a product being cooked with an automatic means for distributing water onto an excessive flame activated by a photodetector that senses light from the excessive flame.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: April 11, 2000
    Inventors: Peter H. Landstrom, Thom Carpenter
  • Patent number: 6048197
    Abstract: A retention head for the end of the burner nozzle housing on a waste oil furnace controlS the flow of combustion air relative to the flame produced by the burner nozzle. The retention head is formed as a cup-shaped member that mounts in a detachable manner on the outside of the burner nozzle housing. The retention head has an operative face having a central opening through which a portion of the combustion air can flow and support the flame passing through the opening. A solid ring defining the central opening forces air into circumferential vented slots around the perimeter of the retention head. The vented slots have angled flaps that direct the combustion air into a spiraled flow pattern circumferentially around the flame. The retention head has an inwardly curved periphery to help direct combustion air into an inward pattern surrounding the flame.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: April 11, 2000
    Assignee: Clean Burn, Inc.
    Inventor: Emanuel S. Beiler
  • Patent number: 6048196
    Abstract: A self-grounding igniter for an industrial burner that is more durable and less fragile, by virtue of the insulating jacket being relatively short and limited to the tip end of the igniter. The burner has a final inlet, an air inlet, a housing and a burner nozzle inside the housing. The igniter comprises a metal rod having a discharge electrode at one end and a mount and connector at the other end. The connector is adapted to be electrically coupled to a power source. An insulating jacket circumscribes a top end segment of the metal rod in proximity to the discharge electrode. A ground electrode metal sleeve is mounted to the outside of the insulating jacket in fixed proximity to the discharge electrode, thereby forming a spark gap having a fixed distance. This configuration provides an exposed metal surface on the rod between the insulating jacket and the mount. The exposed metal surface has a length substantially corresponding to the distance between the housing and the burner nozzle.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: April 11, 2000
    Assignee: Eclipse Combustion, Inc.
    Inventors: David Collier, Scott Stroup
  • Patent number: 6044840
    Abstract: A nonimaging solar collector. A method and article of manufacture of a solar collector includes an outer housing transparent to light, a reflector element positioned asymmetrically within the outer housing, an absorber disposed within the outer housing, and a heat conduction fin coupled to the absorber and having a wedge shape which tapers to a smaller thickness as a function of increasing radial separation from the absorber. The heat conductor fin can be positioned at a variety of angular positions.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: April 4, 2000
    Assignee: Solar Enterprises International, LLC
    Inventors: Roland Winston, Harald Reis
  • Patent number: 6044834
    Abstract: A stove top protective cover for protecting a stove top from stains and spills when cooking on the stove top. The stove top protective cover includes a flexible panel with a plurality of spaced apart sets of concentric separation lines. The panel is separable along each of the separation lines to form corresponding holes through the panel.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: April 4, 2000
    Inventor: Nicholas Zappetti
  • Patent number: 6044839
    Abstract: A novel liquid heating apparatus is provided by which sufficient heat efficiency is achieved with the production cost reduced by simplification of the construction thereof, and the maintenance of which is easily carried out. The liquid heating apparatus is provided with a burner unit disposed downward of the bottom portion of a liquid tank formed to be a rectangular parallelpiped in its plan view for raising the temperature of the liquid in the liquid tank by heating the bottom portion of the liquid tank using a burner of the burner unit. A heating plane opposite flame ports of the burner and a low temperature portion located downward of the heating plane are formed at the bottom portion of the liquid tank. Fins protruding toward the burner direction are juxtaposed and fixed on the rear side of the heating plane in the lengthwise direction thereof. A fan capable of generating a flow of combustion gas among the fins is provided in the burner unit.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: April 4, 2000
    Assignee: Eiken Industries Co. Ltd.
    Inventor: Toshio Furuhashi
  • Patent number: 6044838
    Abstract: A fume exhaust apparatus including a hood chamber, a primary air duct, a series of air tracks adapted to direct the air around the perimeter of the hood chamber, an exhaust plenum and a plurality of blowers to draw air into the primary air duct, force air downward over an area defined by the perimeter of the hood chamber through the air tracks in order to contain fumes generated by use of a cooking appliance and to draw the fumes away from the ambient cooking area and into the exhaust plenum.
    Type: Grant
    Filed: June 5, 1999
    Date of Patent: April 4, 2000
    Inventor: David Deng
  • Patent number: 6045352
    Abstract: An automatic safety system for a fluid fuel air heating furnace. The safety system utilizes a double-sided carbon monoxide sensor for detecting unsafe levels of carbon monoxide interiorly and exteriorly of the furnace's heated air duct and a single-sided carbon monoxide sensor for detecting unsafe levels of carbon monoxide interiorly of the furnace's flue pipe. The sensors employ carbon monoxide detector chips which are electrically conductive in normal conditions, but become non-conductive when exposed to levels of carbon monoxide that are deemed unsafe for humans. The sensors are incorporated in an electrical circuit for energizing a solenoid valve which valve, when energized, opens to permit fuel flow to the furnace. Detection of unsafe levels of carbon monoxide will result in the sensors becoming non-conductive, thereby causing the solenoid valve to become de-energized and to close thereby preventing fuel flow to the furnace.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: April 4, 2000
    Inventor: Leroy E. Nicholson
  • Patent number: 6042367
    Abstract: A safety device in a lighting rod comprises a locking member having an engagement section, which interferes with a portion of an operation member and thereby locks the lighting operation of the operation member. The locking member can move in a direction, that intersects with the direction along which the operation member moves. An urging member urges the locking member to a locking direction. The locking member is provided with a lock releasing section, which can be operated in order to move the locking member in a direction, that acts against the urging force of the urging member. The lock releasing section is projected to a position, which stands facing the operating section of the operation member. The lock of the lighting operation is released by operating the lock releasing section of the locking member, and the lighting operation is carried out in this state by operating the operating section of the operation member.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: March 28, 2000
    Assignee: Tokai Corporation
    Inventors: Masaki Saito, Toshihiro Ichikawa
  • Patent number: 6039562
    Abstract: A piezoelectric lighter with safety lock, which can be a cigarette lighter or a barbecue lighter, includes a spring lock unit disposed inside a pusher cavity of a pusher cap, which includes a locking heel extended upwardly, a release button sidewardly extended from the locking heel through a locking hole provided on a side wall of a piezoelectric unit casing until a pressing end thereof normally exposed outside, and a spring member integrally extended from the locking heel to another side wall of the piezoelectric unit casing so as to urge the locking heel positioning in a locking condition to block the downward movement of the pusher cap so as to prevent any lighting operation of a piezoelectric unit received in a casing of the piezoelectric lighter.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: March 21, 2000
    Inventor: Kin Chung Li
  • Patent number: 6035846
    Abstract: A burner for gas cookers (1) comprises: a central flame crown (22) concentric with two circumferential crowns (25, 26) themselves concentric; radial ducts (23) for feeding the primary gas-air mixture I to the circumferential crown and a substantially horizontal Venturi effect chamber (18) defined by facing surfaces (15, 16) and equidistant from the body (14) of the burner and from the cover of the of central flame crown respectively.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: March 14, 2000
    Assignee: SABAF S.p.A.
    Inventor: Giuseppe Saleri
  • Patent number: 6036475
    Abstract: A cyclonic type combustion apparatus that may be constituted so as to jet out a premixed gas made up of a mixture of a gaseous fuel and air into a cylindrical combustion chamber, from nozzle ports provided on an inside cylinder wall, the combustion apparatus being especially adapted for heating the liquid medium in hot water heaters, smoke tube boilers, and the like. For instance, a premixed gas obtained by mixing a gaseous fuel with air is jetted out into a cylindrical combustion chamber from a nozzle port opened on its inner peripheral surface along the inner peripheral surface in its tangential direction. The combustion chamber is disposed in a storage region containing heating medium water. The peripheral wall of the combustion chamber is constituted to be a heat conductive wall which is in contact with the heating medium water. The flame formed by the premixed gas jetted out from the nozzle port is cooled by the heating medium water.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: March 14, 2000
    Assignee: Takuma Co. Ld.
    Inventors: Koichi Matsui, Isao Kuwagaki
  • Patent number: 6035849
    Abstract: An extension assembly for use with a damper assembly and for extending the damper assembly control shaft. The extension assembly is provided for coupling of a handle to the control shaft and includes an extension member, a locking member and a securing member. The extension member includes a connecting portion having a closed end and an open end. The open end includes a bore dimensioned to operatively receive the control shaft. The extension member further includes a shaft portion extending longitudinally from the closed end of the connecting portion. The shaft portion includes two parallel flat sides merging transversely with two opposite arcuate sides and dimensioned to be received by an aperture in the handle. The locking member provides the function of locking the control shaft within bore. The securing member ensures that the handle will remain a fixed distance from duct and provides a lock tight surface for a nut to engage and hold the handle.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: March 14, 2000
    Assignee: Alan Manufacturing, Inc.
    Inventor: Richard A. Bluestone
  • Patent number: 6036479
    Abstract: The object of the invention is to provide a two-stage pressure atomizer nozzle for at least one liquid to be atomized, with which two-stage pressure atomizer nozzle improved liquid distribution in the exterior space of the pressure atomizer nozzle, in particular improved fuel distribution in a premix burner, can be achieved. To this end, the pressure atomizer nozzle has a nozzle head (4) connecting the outer and inner tubes (2, 3) to one another downstream. At least two separate turbulence and/or swirl chambers (9, 10, 11, 12) are arranged in the nozzle head (4). Each of these turbulence and/or swirl chambers (9, 10, 11, 12) is connected to the second feed passage (6) via at least one swirl passage (16), to the first feed passage (5) via at least one turbulence-generator passage (15) and to the exterior space (18) of the nozzle body (1) via a discharge opening (17).
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: March 14, 2000
    Assignee: ABB Research Ltd.
    Inventors: Peter Dubach, Jonathan Lloyd, Thomas Sattelmayer, Christian Steinbach
  • Patent number: 6035847
    Abstract: A portable or canned heat product is made where a liquid fuel is added to a filler made of bicomponent curled fibers with the fibers substantially oriented such that the axes of the fibers are parallel to the axis of a container holding these fibers and this filler and fuel provides an easy to ignite wick free heating device and a method to make ignition of a fiber surface easier.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: March 14, 2000
    Inventor: Dennis Duane Paul
  • Patent number: 6033210
    Abstract: A decorative candle comprising a container that defines an interior chamber. Disposed within the interior chamber is a candle core sized relative to the container such that a cavity is formed between the candle core and the container. At least one component is disposed within the cavity in abutting contact with the candle core and the container. The component is encapsulated by a mixture that has a melting point lower than the candle core and the component such that neither the candle core nor the component melt when the molten mixture is poured within the cavity. In the preferred embodiment of the present invention, the candle core is a paraffin wax candle core and the mixture is a paraffin/petrolatum mixture. Furthermore, the component may be a gelatinous component formed from a mineral oil gel.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: March 7, 2000
    Inventor: Scott Freeman