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| Number | Title | Issue Date |
| 6981498 | Waste grease collection tank and method for its use A double walled waste grease collecting tank for use in collection system in which the collecting tank is partially submersed in a hot water bath to soften or melt grease at the container walls to facilitate emptying the solid or semi-solid collected grease. The dou... | 01/03/2006 |
| 6935331 | Portable tar heating and melting apparatus A portable tar kettle includes a steel containment body mounted on wheels and having a handle projecting therefrom with the handle including an integral gas line that interconnects to an external propane tank and internally registers with a gas burner located within... | 08/30/2005 |
| 6681761 | Exhaust damper system for asphalt heating device A device is shown for transporting asphalt repair materials for use in repairing potholes in asphalt pavements. The device has a body with a hopper compartment for transporting and dispensing asphalt mix materials. A dry, radiant heat source is located in... | 01/27/2004 |
| 6439806 | Pavement repair material cart A portable cart for transporting and dispensing heated pavement repair materials that is capable of being moved and operated by one person, the cart applying a heated asphaltic/polymeric binder material. The cart comprises a heating chamber having an encl... | 08/27/2002 |
| 6065469 | Emission control system for asphalt kettle An emission control system for an asphalt kettle combines a number of features to increase efficiency and convenience of operation, while minimizing potential safety hazards. The asphalt kettle is connected via a duct to a separate afterburner device equi... | 05/23/2000 |
| 6022389 | System for removal of noxious fumes A system which reduces the transmission of noxious fumes into the surrounding air during the application of a heated liquid roofing product on a roof. A mobile tanker or kettle contains a supply of the heated liquid. The air space within the tanker or ves... | 02/08/2000 |
| 6019255 | Modular adhesive sealant heating system A hot melt assembly for melting adhesives and sealants including a modular melt tank for housing the adhesive/sealants that is removably secured to a heating plate to allow removal of the melt tank for cleaning, repairing or replacing without removing add... | 02/01/2000 |
| 6012447 | Heated mixing kettle with dual acting agitators A heated kettle for melting and mixing a thermoplastic resin into a homogeneous mixture has a helically-formed agitator which rotates about a central shaft in close proximity to the internal wall of the kettle. Fixed to the shaft at approximately the cent... | 01/11/2000 |
| 6007419 | Transport and storage container climate control A transport and storage container for goods including a system for maintaining goods contained in the transport container within a preselected temperature range. The container may include an exterior support shell having a plurality of support members att... | 12/28/1999 |
| 5951725 | System for removal of noxious fumes A system which reduces the transmission of noxious fumes into the surrounding air during the application of a heated liquid roofing product on a roof. A mobile tanker or kettle contains a supply of the heated liquid. The air space within the tanker or ves... | 09/14/1999 |
| 5947721 | Recycling apparatus for obtaining oil from plastic waste A recycling apparatus for obtaining oil from waste plastic by thermal decomposition having a tank proper with a hopper to charge the waste plastic and multiple heating pipes disposed above one another which communicate with one another in the tank proper.... | 09/07/1999 |
| 5941236 | Roofing kettle control apparatus Roofing kettle apparatus for heating asphalt includes a wheeled chassis mounting a vat and a heating system for heating the vat. The heating system includes a solenoid operated valve for controlling the flow of fuel gas from a fuel gas source to each of a... | 08/24/1999 |
| 5909730 | Bitumen container THE INVENTION provides a beatable container for bitumen, cut-back or the like, comprising a body member defining a base zone, side wall zones, end wall zone and a roof zone, characterized in means for transmitting heat from a heating medium to the base zo... | 06/08/1999 |
| 5887583 | Mass flow control system and method for asphalt plant As electronic programmable valve positioning linkage for a burner used in a hot mix asphalt plant is associated with fuel, air and optionally flue gas recirculation valve motors. To avoid an undesired rich condition which might result in an explosive cond... | 03/30/1999 |
| 5873919 | System for removal of noxious fumes A system which reduces the transmission of noxious fumes into the surrounding air during the application of a heated liquid roofing product on a roof. A mobile tanker or kettle contains a supply of the heated liquid. The air space within the tanker or ves... | 02/23/1999 |
| 5838880 | Ground heating system A ground heating system is provided comprising an internal combustion engine which has a shaft output and an exhaust gas stream. An electric alternator/generator is driven by the shaft output of the engine. A working fluid is provided for transferring hea... | 11/17/1998 |
| 5832178 | Hot melt mix applicator with electrically heated hose and wand with temperature-controlled electric generator A method and heating system for a hose and dispenser wand of a hot melt mix applicator uses a three phase heating element powered by a generator to heat the hose and wand to maintain hot melt mix material within the hose and wand in a flowable state. To s... | 11/03/1998 |
| 5762664 | Mobile vessel for removal of noxious fumes A mobile vessel which reduces the transmission of noxious fumes into the surrounding atmosphere emanating from material contained in a material chamber in the vessel, such as bituminous roofing material. An air plenum extends along the vessel beneath a fi... | 06/09/1998 |
| 5727453 | Apparatus and method for thawing frozen food product A new method and apparatus for thawing frozen food product utilizing desuperheated gas thawing medium near its saturation point. The transfer of the latent heat of condensation from the thawing medium to the frozen food product immediately condenses the t... | 03/17/1998 |
| 5718220 | Truck body for on-site heating and collecting waste grease from different sized containers An improved container for heating grease in a truck including a waste grease holding tank and a heating tank for immersion of a waste grease container into a vat of hot water for loosening the grease in the waste grease container so that the grease in the... | 02/17/1998 |
| 5711289 | Vapor removal system for bulk adhesive handling systems A bulk adhesive handling system (10) having a hopper (16) and a lid (26) includes a vapor removal system (12) comprising a plurality of vent holes (40) formed in the side wall (42) of the hopper (16) of the system. The vent holes (40) are in communication... | 01/27/1998 |
| 5601113 | Hot valve for submerged pump system An improved hot valve system for use in a hot melting kettle of the type used for substances such as asphalt includes a surge chamber having a first outlet in fluid communication with a vertical discharge pipe, and a second outlet open to the interior of ... | 02/11/1997 |
| 5575272 | Roofing kettle with automatic fuel ignition and control system Apparatus is described for an improved roofing kettle. The improvements comprise electronic temperature control apparatus for the kettle vat. Automatic shutoff apparatus is provided for shutting off the fuel supply in the event the fuel supply is not prop... | 11/19/1996 |
| 5542841 | Burner apparatus for use in a glass furnace A burner apparatus is used in a glass furnace incorporating a plurality of pairs of burners, each pair of burners being provided at the diametrically opposite locations of the furnace and operated alternately. The burner apparatus comprises a water cooled... | 08/06/1996 |
| 5494026 | Dome connecting structure of external combustion hot stove for blast furnace A connecting structure of a blast furnace hot stove of the type in which a heat accumulation chamber dome and a combustion chamber dome are directly connected to each other through a dome connecting pipe which does not have any expansion joint. The ratio ... | 02/27/1996 |
| 5471975 | Gas power plant A casing having an upper compartment and a lower compartment; it has a top opening for holding a candy kettle, and a refractory burner in the upper compartment under the kettle. A blower and fuel supply means are in the lower compartment. The burner is of... | 12/05/1995 |
| 5471974 | Gas power plant A casing having an upper compartment and a lower compartment. The upper compartment includes a burner and a structure for accommodating a candy kettle. The lower compartment incorporates a pressurized fuel means, including a blower, a manifold with an air... | 12/05/1995 |
| 5443021 | Dump and process for vitrifying waste The dump comprises a dumping area (1) provided with a biogas collector (2) which communicates with an electroburner (9).... | 08/22/1995 |
| 5423676 | Waste melting furnace A waste melting furnace has a coke layer formed therein, and an annular combustion space formed circumferentially of the coke layer below an upper surface thereof and communicating with the coke layer. A depending wall projects downwardly from an upper po... | 06/13/1995 |
| 5404866 | Kettle insert passive liquefaction The present invention is a cone insert for a liquefaction kettle. Pads on the bottom of the cone separate the cone from the surface of the kettle. Solid material is added to the top of the cone. Solid material is melted on demand by an internal spray kett... | 04/11/1995 |
| 5380500 | Process for separating vaporous heavy metal compounds from a carrier gas and apparatus for carrying out the process A process and apparatus for the separation of vaporous heavy metal compounds from a carrier gas wherein the heavy metal compounds are cooled and desublimed. An apparatus for carrying out this process has a melting furnace with a discharge opening for a ga... | 01/10/1995 |
| 5374120 | Modified passive liquid in-line segmented blender A liquefying apparatus for melting and blending solid materials includes a hopper with a coiled heating element disposed therein which supports and melts the solid materials into liquid form. The hopper is segmented into a plurality of compartments and as... | 12/20/1994 |
| 5372177 | Method and apparatus for removing wax from casting mold A method and an apparatus are provided which allows the safe and inexpensive extinguishing and cooling of flaming wax emanating from an investment casting flash fire dewaxing furnace. Investment mold structures are disposed within individual cups which di... | 12/13/1994 |
| 5366308 | Hot asphalt transfer and application device The present invention provides a machine for automating the transferral and application of hot asphalt material to roof surfaces. The machine includes a number of reels attached to an outer shell contained on a cart. Each reel contains roughly five-hundre... | 11/22/1994 |
| 5333600 | Portable tar melting kettle assembly A tar melting assembly that is used with a portable heat torch and has a tar melting kettle that includes a body having a front, back, side and bottom walls, and a spout that extends out from the front. A plurality of heat exchangers within the body are s... | 08/02/1994 |
| 5320161 | Gelled formaldehyde transport method Formaldehyde and similar biocides are transported in a gelled, semi-solid or solid state by providing formaldehyde in a concentration in methanol of about fifty-five percent (55%) to eighty-five percent (85%) by weight, loading the solution in rail cars o... | 06/14/1994 |
| 5291876 | Feed hopper for providing preheated aggregate material An apparatus for feeding preheated aggregate material, such as for the production of asphalt. A feed hopper includes a heater within its interior and positioned adjacent a slotted discharge opening at the lower end of the hopper. A tent-like cover is posi... | 03/08/1994 |
| 5261322 | Fryer apparatus in commercial application The present invention provides an improved fryer apparatus including a small size pulse combustor and an additional labor-saved function such as a filtering system or a lift system. The pulse combustor of the invention does not include a check valve or fl... | 11/16/1993 |
| 5252808 | Method and apparatus for recovering petroleum residues from storage sites A method and apparatus to melt and withdraw petroleum residue from a storage site at a convenient location while causing the residue from more distant locations to melt and flow in a stream, to the removal location. A heated wand is utilized to heat the p... | 10/12/1993 |
| 5239615 | System for transporting highly viscous waterproofing membrane A system for transporting liquefied, highly viscous waterproofing membrane from a kettle where the membrane is heated and stored to a remote location. The system comprises a pump assembly for pumping membrane out of the kettle, a pipe assembly coupled wit... | 08/24/1993 |
