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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7360506 | Low CO water heater A water heater including a water container, a combustion chamber adjacent the water heater, a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water container, a flue having an upper portion and a lower portion operativ... | 04/22/2008 |
| 7132084 | Candle warmer A scent dispersion system, comprising a heating device having a top surface, and a container of scented wax disposed upon the top surface of the heating device. Upon heating, scent from the wax is caused to disperse into the surrounding environment. The system may f... | 11/07/2006 |
| 7007857 | Compact vehicle heating apparatus and method A compact vehicle heating system and method is provided which includes mechanisms to selectively shut down heating systems. For example, when domestic hot water is required, space heating and engine preheating systems can be shut down in order to provide priority he... | 03/07/2006 |
| 6921261 | Air-heating gas burner A burner (10, 210, 310, 410) including a fuel manifold (12, 212, 312, 412), perforated air-mixing plates (14, 16, 214, 218, 414) coupled to the fuel manifold to define a fuel-air mixing region (22, 473) therebetween above the fuel manifol... | 07/26/2005 |
| 6884065 | Gas fired portable unvented infrared heater A portable heater adapted for use in a recreational enclosure or temporary work enclosure includes a housing having an air inlet on the lower front face. A gas supply is partially enclosed by the housing which provides propane to the mouth of a burner venturi locate... | 04/26/2005 |
| 6880549 | Combustion system for a heater A combustion system for a portable forced air heater having two frusta-conical sections attached to a circular burner tube, wherein each frusta-conical section has pre-determined vent hole patterns that allow the gas heater to have a variable burn rate. ... | 04/19/2005 |
| 6857870 | Combustion system for a heater A combustion system for a portable forced air heater having two frusta-conical sections attached to a circular burner tube, wherein each frusta-conical section has pre-determined vent hole patterns that allow the gas heater to have a variable burn rate. ... | 02/22/2005 |
| 6718968 | Enclosure for an infrared heater A burner and fan enclosure for an infrared heater includes a low pressure housing 10 with an internal high pressure housing 24. A centrifugal fan 39 is located within the low pressure housing 10 and provides combustion air to the high pre... | 04/13/2004 |
| 6648635 | Gas-fired portable unvented infrared heater for recreational and commercial use A portable heater adapted for use in a recreational enclosure or temporary work enclosure includes a housing having an air inlet on the lower front face. A gas supply is partially enclosed by the housing which provides propane to the mouth of a burner ven... | 11/18/2003 |
| 6629523 | Heated make-up air system A heated make-up air system comprising a duct structure having a direct gas fired burner mounted therein. Adjacent the burner there is provided an opening for permitting air to flow there through. Mounted adjacent the opening one or more pivotally mounted... | 10/07/2003 |
| 6526964 | Direct gas-fired burner assembly A gas burner assembly, including its gas intake manifold, in combination with upper and lower tiered baffles, and includes the side chambers for regulation of flow if air through a draw in and through type of burner assembly, to provide heated air for a b... | 03/04/2003 |
| 6431457 | Air heater control A heater control system is operable to modulate a heater of a building or warehouse or the like, in order to maintain the temperature rise of air passing through the heater at or below a maximum allowable temperature rise value. The maximum allowable temp... | 08/13/2002 |
| 6340298 | Gas-fired portable unvented infrared heater for recreational and commercial use A portable heater adapted for use in a recreational enclosure or temporary work enclosure includes a housing having an air inlet on the lower front face. A gas supply is partially enclosed by the housing which provides propane to the mouth of a burner ven... | 01/22/2002 |
| 6213406 | Automotive evaporation combustion heater It is sought to reduce combustion rise time at the start of driving, increase the combustion efficiency per unit heat exchanger volume and reduce the heater size. A ring-like fuel evaporating medium 4 is provided on an end wall of a combustion chamber for... | 04/10/2001 |
| 6152128 | Easily-assembled portable forced-air heater with reduced number of components A portable forced air heater includes a one-piece unichassis structure which forms the base and the outer housing of the heater. The outer housing defines an elongated passage having a front end and a back end and which receives a burner assembly. The bur... | 11/28/2000 |
| 6142141 | Airflow diffuser for use with a forced-air space heater and a forced-air space heater using the same A unitary airflow diffuser for use with a forced-air space heater has a plurality of spurs radially extending from a hub. The spurs include one or more vanes for deflecting the airflow generated by fan blades within the space heater. A nozzle assembly is ... | 11/07/2000 |
| 6106276 | Gas burner system providing reduced noise levels A gas burner is provided for use on the inlet end of a fire tube, and includes a mixer having attached to it a gas delivery pipe, fuel gas and air being combined in the mixer to provide mixed gas and air. A venturi is secured at its inlet end to the mixer... | 08/22/2000 |
| 6089221 | Space heater A space heater for heating air from within a room with a heat exchanger connected to a burner and discharging heated air into the room has a room temperature sensor for detecting a room temperature and a controller for controlling the burner with a freeze... | 07/18/2000 |
| 5915960 | Direct gas-fired heating and ventilation system with passive control damper A gas-fired heating and ventilation system includes a blower which draws air through a recirculation damper from a building and through a direct gas-fired burner from a fresh air inlet. A passive control damper is mounted to bypass air around the burner a... | 06/29/1999 |
| 5865618 | Self-regulating forced air heater A self-regulating forced-air heater includes a housing in which is located an air passageway. A blower forces air through the air passageway, including into and out of a combustion chamber. A burner disposed within the combustion chamber combusts a fuel a... | 02/02/1999 |
| 5636786 | High efficiency gas furnace A high efficiency gas furnace utilizes a unique pre-mixed design in combination with a pressurized/high velocity combustion process. The combustion process occurs in a combustion chamber and the high temperature high velocity products of combustion follow... | 06/10/1997 |
| 5540213 | Portable kerosene heater A kerosene heater (1) having a pump assembly (106) which includes a piston (113) having a hollow bore (121) through which fuel (98) is routed to the hollow shaft of a fuel atomizer (27). The piston (113) is operated by a cam (117) machined into the shaft ... | 07/30/1996 |
| 5472141 | High efficiency gas furnace A high efficiency gas furnace utilizes a unique pre-mix design in combination with a pressurized/high velocity combustion process. The combustion process occurs in a combustion chamber and the high temperature high velocity products of combustion follow a... | 12/05/1995 |
| 5441405 | Power gas burner system A gas burner system in which a turbulator disk is arranged between a burner and an opening in a combustion chamber aligned with the burner. The turbulator disk defines a central port and a plurality of peripheral voids adjacent to the central port. A burn... | 08/15/1995 |
| 5399086 | Gas-fired air heater assembly In a direct gas-fire heater assembly having a generally box-like housing with a grate-like floor with a conventional gas regulator, a gas port mounted within a box-like shroud, the shroud having one side with a predetermined number, shape and size of prim... | 03/21/1995 |
| 5297729 | Furnace apparatus An improved heating system is disclosed for providing heated air to a heated space, preferably using a gaseous fuel as the energy source. The system preferably includes an air heating sub-system, a compact combustion chamber, a separate cold air supply su... | 03/29/1994 |
| 5282457 | High efficiency gas furnace A high efficiency gas furnace utilizes a unique premix design in combination with a pressurized/high velocity combustion process. The combustion process occurs in a combustion chamber and the high temperature high velocity products of combustion follow a ... | 02/01/1994 |
| 5273210 | Room heating arrangement The room heating arrangement is provided with a radiation tube, connected to a pressure and mixing chamber casing 1, a pipe line system arranged above the room to be heated, the radiation tube being connected, on the one hand, to a return flow chamber 19 ... | 12/28/1993 |
| 5253806 | Liquid fuel-operated heater for vehicles A heater (independent vehicle heater) which can be operated in a particularly wide range between full load and partial load, e.g., 1:10 to 1:15, is shown. This is achieved by the annular space surrounding the combustion chamber being divided into two part... | 10/19/1993 |
| 5222476 | Low NOx aspirated burner apparatus A low NOx burner assembly of a fuel-fired heating appliance is supplied with an air/fuel mixture having a substantially less than stoichiometric air-to-fuel ratio. The air-rich mixture is partially combusted to create primary combustion products disposed ... | 06/29/1993 |
| 5195886 | Combustion heater According to a first aspect of the invention, a combustion heater has an ECU for controlling operations of a glow plug, a battery, a fuel pump, and a blower for supplying air to a combustor. The ECU is responsive to an instruction signal instructing start... | 03/23/1993 |
| 5065736 | Air heating apparatus and method of heating an air stream An improved air heating apparatus and method of heating an air stream wherein the heating arrangement includes a heater housing with a combustion drum having a burner at one end thereof, the drum being disposed in spaced relation in the housing to extend ... | 11/19/1991 |
| 5038751 | Direct fired unit heater The present invention is a direct fired unit heater which includes a lower combustion chamber which communicates with an upper fan assembly which mixes combustion products with ambient air and discharges this laterally from the unit. The fan assembly has ... | 08/13/1991 |
| 5005556 | Efficient gas hot-air furnace and heating process Substantially all available heat from a combustion gas stream is extracted by passing it through a cool, porous heat sink, which is thereby heated, and then releasing that heat into a cool air stream blown through the same porous heat sink in a second ste... | 04/09/1991 |
| 4995376 | Pulse furnace A furnace is provided for combusting liquid or gaseous fuel which has a combustion assembly with an internal cavity that has a mixing chamber and a combustion chamber. A flame tube is disposed intermediate the mixing chamber and the combustion chamber. Th... | 02/26/1991 |
| 4958619 | Portable, flueless, low nox, low co space heater A flueless, portable low nitrogen oxides emissions, low carbon monoxide emissions space heater having a fuel chamber with a fuel inlet and a fuel distributor. The fuel inlet generates a swirling fuel flow within the fuel chamber. A primary air inlet gener... | 09/25/1990 |
| 4906178 | Self-powered gas appliance Embodiments of gas-fired appliances which generate sufficient electricity to be self-powered include water heaters, space heaters, air conditioning units, and electric power and steam cogeneration systems. In such apparatus, gas is burned in a porous cera... | 03/06/1990 |
| 4903684 | Air control system for a burner An air control assembly for a fuel burner having a combustion chamber and a nozzle includes a control device which controls the amount of air that flows into the burner and an assembly dependent on fuel pressure which actuates the control device. A fuel i... | 02/27/1990 |
| 4848313 | Compact forced air heater A compact forced air heater comprises a combustion chamber mounted in a housing, a burner module mounted across a back open end of the combustion chamber adjacent a back wall of the housing for producing heated air in the combustion chamber, an air intake... | 07/18/1989 |
| 4848315 | Apparatus for supplying heated air to an air system An apparatus for supplying heated air to an air stream including a first air flow duct having an inlet and an outlet, a blower for forcing air through the duct to the first duct outlet, and a second air flow duct having an inlet, an outlet, and a burner c... | 07/18/1989 |
