Abstract: A continuous mode conveyor cooking appliance utilizing hot air jet impingement and microwave energy for cooking prepared foods. The approach envisions a central microwave unit with a hot air jet impingement oven unit on each side of the microwave section and a conveyor system to carry the food items completely through the appliance from one end to the other and with the two hot air jet impingement ovens equipped with a designed combination of hot air jet impingement jets and solid pins to act as a microwave attenuation system to reduce microwave exposure to cooking personnel to completely safe levels.

Abstract: A burner system for consuming waste fuel comprises a combustion unit having at least three combustion chambers arranged concentrically around a variable speed conveyor screw for directing the waste fuel along a fuel consumption path through the combustion chambers; an air chamber surrounding the combustion chambers to facilitate preheating combustion air delivered to the combustion chambers and to facilitate insulating the combustion chambers against thermal losses to the environment; a boiler in fluid communication with the combustion chambers for heating fluid to facilitate an energy conversion process; and an intelligent control system for controlling operation of the burner system. The control system controls operating parameters of the boiler including pressure, temperature and fluid level and activates an emergency stop alarm if any one of the operating parameters is outside a predetermined range of operating values.

Abstract: A light fixture includes a lamp assembly having a housing containing a plurality of light sources. The light fixture further includes a lamp holder having a substantially flat body, a flange extending in a substantially diagonal orientation out of the plane of said substantially flat body, and a pair of side attaching members. The light fixture further includes a skirt having a face plate and a pair of stop members extending substantially perpendicular to the face plate.

Abstract: A drain cover assembly includes a face plate having at least one hole to allow water to flow from a drainage pipe located in a retaining wall. The face plate includes a first pair of flanges and a second pair of flanges, both of which extend substantially perpendicular to the face plate. The first pair of flanges has a receiving means for receiving a fastener adapted to secure the drain cover assembly to the retaining wall. The second pair of flanges has a plurality of deformable tabs adapted to create an interference fit with the retaining wall. The drain cover assembly may also include a decorative face plate.

Abstract: An energy conversion system comprises a plurality of concentrically arranged combustion chambers for passing incinerated waste plastic fuel along a generally S-shaped combustion path into a discharge section for thermally coupling the incinerated waste plastic fuel to a fluid material to facilitate an energy conversion process. The combustion chambers are arranged concentrically around a single rotatable feed mechanism and the combustion chambers are in fluid communication with one another. The fluid material is contained within a boiler in fluid communication with the combustion chambers for heating the fluid material to facilitate the energy conversion process.

Abstract: A burner system for consumption of waste fuel comprises a screw conveyor having a longitudinal hollow interior for air distribution and radially disposed air intake orifices connecting the hollow interior to a plurality of combustion chambers, which includes a first combustion chamber disposed centrally around the screw conveyor and at least one orifice; a second combustion chamber disposed concentrically around the first combustion chamber, receiving burning waste fuel from the first combustion chamber, and in fluid communication with the air intake orifice to provide air from an air blower through the orifice; and a third combustion chamber disposed concentrically around the second combustion chamber, receiving waste fuel from the second combustion chamber, and in fluid communication with the air intake orifice to provide air from the air blower.

Abstract: An energy conversion system comprises a plurality of concentrically arranged combustion chambers for passing incinerated waste plastic fuel along a generally S-shaped combustion path into a discharge section for thermally coupling the incinerated waste plastic fuel to a fluid material to facilitate an energy conversion process. The combustion chambers are arranged concentrically around a single rotatable feed mechanism and the combustion chambers are in fluid communication with one another. The fluid material is contained within a boiler in fluid communication with the combustion chambers for heating the fluid material to facilitate the energy conversion process.

Abstract: A burner system for consumption of waste fuel comprises a screw conveyor having a longitudinal hollow interior for air distribution and radially disposed air intake orifices connecting the hollow interior to a plurality of combustion chambers, which includes a first combustion chamber disposed centrally around the screw conveyor and at least one orifice; a second combustion chamber disposed concentrically around the first combustion chamber, receiving burning waste fuel from the first combustion chamber, and in fluid communication with the air intake orifice to provide air from an air blower through the orifice; and a third combustion chamber disposed concentrically around the second combustion chamber, receiving waste fuel from the second combustion chamber, and in fluid communication with the air intake orifice to provide air from the air blower.

Abstract: A burner system for consuming waste fuel comprises a combustion unit having at least three combustion chambers arranged concentrically around a variable speed conveyor screw for directing the waste fuel along a fuel consumption path through the combustion chambers; an air chamber surrounding the combustion chambers to facilitate preheating combustion air delivered to the combustion chambers and to facilitate insulating the combustion chambers against thermal losses to the environment; a boiler in fluid communication with the combustion chambers for heating fluid to facilitate an energy conversion process; and an intelligent control system for controlling operation of the burner system. The control system controls operating parameters of the boiler including pressure, temperature and fluid level and activates an emergency stop alarm if any one of the operating parameters is outside a predetermined range of operating values.

Abstract: A drain cover assembly includes a face plate having at least one hole to allow water to flow from a drainage pipe located in a retaining wall. The face plate includes a first pair of flanges and a second pair of flanges, both of which extend substantially perpendicular to the face plate. The first pair of flanges has a receiving means for receiving a fastener adapted to secure the drain cover assembly to the retaining wall. The second pair of flanges has a plurality of deformable tabs adapted to create an interference fit with the retaining wall. The drain cover assembly may also include a decorative face plate.

Abstract: A light fixture includes a lamp assembly having a housing containing a plurality of light sources. The light fixture further includes a lamp holder having a substantially flat body, a flange extending in a substantially diagonal orientation out of the plane of said substantially flat body, and a pair of side attaching members. The light fixture further includes a skirt having a face plate and a pair of stop members extending substantially perpendicular to the face plate.

Abstract: The present invention provides a burner system which uses waste fuels, especially waste plastic fuels. Burner size is minimized by having multiple combustion chambers concentrically located around a rotating screw conveyor. Heat efficiency is improved by having air passages disposed around the combustion chambers, thus preheating air for the combustion prior to its delivery to the combustion chambers, while simultaneously thermally insulating the combustion chambers against the environment. Waste fuel is transported from a fuel hopper to the combustion chambers by a rotating screw conveyor having the spiraling auger blades. Speed of screw conveyor rotation controls the consumption of waste fuel and, thus, the amount of thermal energy generated in the burner. The burner system includes an intelligent control system for controlling operation of the burner system, so that the burner system performs at optimum efficiency, safely and with minimum operator intervention.

Abstract: The present invention provides a burner system which uses waste fuels, especially waste plastic fuels. Burner size is minimized by having multiple combustion chambers concentrically located around a rotating screw conveyor. Heat efficiency is improved by having air passages disposed around the combustion chambers, thus preheating air for the combustion prior to its delivery to the combustion chambers, while simultaneously thermally insulating the combustion chambers against the environment. Waste fuel is transported from a fuel hopper to the combustion chambers by a rotating screw conveyor having the spiraling auger blades. Speed of screw conveyor rotation controls the consumption of waste fuel and, thus, the amount of thermal energy generated in the burner. The burner system includes an intelligent control system for controlling operation of the burner system, so that the burner system performs at optimum efficiency, safely and with minimum operator intervention.

Abstract: The present invention provides a burner which uses solid fuels, especially waste plastic fuels. Burner size is minimized by having multiple combustion chambers concentrically located around a rotating screw conveyor. Heat efficiency is improved by having air passages disposed around the combustion chambers, thus preheating air for the combustion prior to its delivery to the combustion chambers, while simultaneously thermally insulating the combustion chambers against the environment. Waste plastic is transported from a fuel hopper to the combustion chambers by a rotating screw conveyor having the spiraling auger blades. Speed of screw conveyor rotation controls the consumption of waste plastic and, thus, the amount of thermal energy generated in the burner.

Abstract: A lighting fixture includes a modular lamp assembly and a lighting fixture comprising a mounting plate and lamp holder affixed to the mounting plate. The lamp holder has flexible retaining members which extend away from the mounting plate. The retaining members have respective securing means to secure the modular lamp assembly at a fixed angle relative to the mounting plate. A flange on the lamp holder guides an electrical cord. This arrangement allows safe and convenient replacement of the modular lamp assembly. A skirt affixed to the mounting plate protects the lamp holder and modular lamp assembly and provides an aesthetically pleasing appearance. The lighting fixture may be readily mounting to hardscape or wooden construction. A strain relief for the electrical cord in the lighting fixture includes an elastic plug and stopper molded to the cord as a single body, and fits into a hole in the flange.

Abstract: The present invention provides a burner which uses solid fuels, especially waste plastic fuels. Burner size is minimized by having multiple combustion chambers concentrically located around a rotating screw conveyor. Heat efficiency is improved by having air passages disposed around the combustion chambers, thus preheating air for the combustion prior to its delivery to the combustion chambers, while simultaneously thermally insulating the combustion chambers against the environment. Waste plastic is transported from a fuel hopper to the combustion chambers by a rotating screw conveyor having the spiraling auger blades. Speed of screw conveyor rotation controls the consumption of waste plastic and, thus, the amount of thermal energy generated in the burner.

Abstract: A lighting fixture includes a modular lamp assembly and a lighting fixture comprising a mounting plate and lamp holder affixed to the mounting plate. The lamp holder has flexible retaining members which extend away from the mounting plate. The retaining members have respective securing means to secure the modular lamp assembly at a fixed angle relative to the mounting plate. A flange on the lamp holder guides an electrical cord. This arrangement allows safe and convenient replacement of the modular lamp assembly. A skirt affixed to the mounting plate protects the lamp holder and modular lamp assembly and provides an aesthetically pleasing appearance. The lighting fixture may be readily mounting to hardscape or wooden construction. A strain relief for the electrical cord in the lighting fixture includes an elastic plug and stopper molded to the cord as a single body, and fits into a hole in the flange.

Abstract: A paver light having a masonry structure with an aperture and a lighting fixture positioned within the aperture of the masonry structure. The lighting fixture includes a support member with an internal cavity and a first locking member, an electrical socket removably received within the cavity of the support member, and a modular light assembly having a light source and a second locking member that is releasably enagable with the first locking member in response to the relative rotation of the first and second locking members. The modular light assembly is removably mounted to the support member by the first and second locking members, and is releasably connected to the socket such that the socket is removed from the cavity of the support member as the modular light assembly is removed from the support member.

Abstract: A paver light having a masonry structure with an aperture and a lighting fixture positioned within the aperture of the masonry structure. The lighting fixture includes a support member with an internal cavity and a first locking member, an electrical socket removably received within the cavity of the support member, and a modular light assembly having a light source and a second locking member that is releasably enagable with the first locking member in response to the relative rotation of the first and second locking members. The modular light assembly is removably mounted to the support member by the first and second locking members, and is releasably connected to the socket such that the socket is removed from the cavity of the support member as the modular light assembly is removed from the support member.

Abstract: A paver light having a masonry structure with an aperture that has a substantially constant diameter from an exterior surface to an interior surface of the masonry structure, and a lighting fixture positioned within the aperture of the masonry structure. The lighting fixture includes a support member with an internal cavity, an electrical socket removably received within the cavity of the support member, and a modular light assembly removably mounted to the support member. The modular light assembly is releasably connected to the socket such that the socket is removed from the cavity of the support member as the modular light assembly is removed from the support member. Upon removal of the modular light assembly from the support member, the modular light assembly can be disconnected from the socket for the purposes of repair or replacement externally of the masonry structure.