A mobile letdown station for regulating a supply of natural gas includes a wheeled trailer and a regulating system onboard the trailer. The regulating system includes a flow path with a pilot operated pressure regulator, a heat exchanger for transferring heat from a heater to the natural gas, an electronic thermostatic controller for controlling the heat output of the heater, and a thermopile for converting heat from the heater to electrical power for the thermostatic controller, such that the regulating system is operable without any external electrical power. The regulating system has a pair of parallel flow paths, each having a pressure regulator, for redundancy in the regulating system. The flow path of the regulating system is disposed in an enclosed compartment of the trailer, along a periphery of a floor of the compartment such that a central portion of the floor is unoccupied by the flow path.
B60P 3/00 - Vehicles adapted to transport, to carry or to comprise special loads or objects
B60P 3/14 - Vehicles adapted to transport, to carry or to comprise special loads or objects the object being a workshop for servicing, for maintenance, or for carrying workmen during work
F17C 7/00 - Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
F17D 1/04 - Pipe-line systems for gases or vapours for distribution of gas
F17D 1/20 - Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves
F17D 3/01 - Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
G05D 23/19 - Control of temperature characterised by the use of electric means
A mobile letdown station for regulating a supply of natural gas includes a wheeled trailer and a regulating system onboard the trailer. The regulating system includes a flow path with a pilot operated pressure regulator, a heat exchanger for transferring heat from a heater to the natural gas, an electronic thermostatic controller for controlling the heat output of the heater, and a thermopile for converting heat from the heater to electrical power for the thermostatic controller, such that the regulating system is operable without any external electrical power. The regulating system has a pair of parallel flow paths, each having a pressure regulator, for redundancy in the regulating system. The flow path of the regulating system is disposed in an enclosed compartment of the trailer, along a periphery of a floor of the compartment such that a central portion of the floor is unoccupied by the flow path.
F17D 1/04 - Pipe-line systems for gases or vapours for distribution of gas
B60P 3/00 - Vehicles adapted to transport, to carry or to comprise special loads or objects
B60P 3/14 - Vehicles adapted to transport, to carry or to comprise special loads or objects the object being a workshop for servicing, for maintenance, or for carrying workmen during work
F17C 7/00 - Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
F17D 1/20 - Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves
F17D 3/01 - Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
G05D 23/19 - Control of temperature characterised by the use of electric means
04 - Industrial oils and greases; lubricants; fuels
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
19 - Non-metallic building materials
35 - Advertising and business services
36 - Financial, insurance and real estate services
37 - Construction and mining; installation and repair services
39 - Transport, packaging, storage and travel services
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Natural gas.
(2) Natural gas appliances, namely, dryers, fireplaces, space heaters, barbecues, ovens.
(3) Remote and automatic meter reading equipment.
(4) Natural gas engine drivers.
(5) Natural gas logsets.
(6) Internal and external gas lamps.
(7) Natural gas firepits.
(8) Humidifiers.
(9) Fireplace mantles, surrounds and plinths.
(10) CO detectors.
(11) Natural gas appliances, namely, furnaces, hot water heaters, combination boilers. (1) Transportation of natural gas, namely, the operation of natural gas pipelines and storage facilities.
(2) Marketing of natural gas, namely, title, transfer, exchange, parking, advance gas, storage and balancing services.
(3) Installation, maintenance, production, transmission and distribution of natural gas systems.
(4) Operation of the business of retail sale of natural gas and related products.
(5) Maintenance of natural gas powered vehicles.
(6) Carrying on the business of the sale of appliances, namely, dryers, washers, ranges, fire places and space heaters.
(7) Automatic meter reading services.
(8) Inspection services, namely, inspection of furnaces, checking thermocouples, fan motors, heat exchangers, filters, control systems, wiring and pilot generators.
(9) Installation of gas appliances, namely, furnaces, heaters, ranges, barbecues, dryers, fire pits, refrigerators and fireplaces.
(10) Investigation services, namely, investigation of gas or gas related odors, suspected gas leaks or unsafe natural gas appliance, call outs for fires, explosions, asphyxiation or carbon monoxide poisoning and no heat calls.
(11) Diagnostic and advisory services for commercial industrial and residential customers, namely, diagnostic checks and adjustments for ranges, back ovens, fat fryers, charcoal grills, dryers, single overhead appliances and other gas fired equipment.
(12) Installation, maintenance and repair of temporary secondary check meters.
(13) Installation of primary and secondary service lines providing irrigation customers with engine maintenance and service information.
(14) Furnace services, namely, maintenance, installation and cleaning of furnaces; repair services, namely, maintenance and parts replacement on gas appliances; insurance services, namely, provision of programs or service contracts for inspection, maintenance and repairs to gas appliances; carrying on the business of the sale of refrigerators, dishwashers, garbarators, televisions, video recorders and stereo equipment; and installation of natural gas power systems for motor vehicles.
04 - Industrial oils and greases; lubricants; fuels
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
19 - Non-metallic building materials
35 - Advertising and business services
36 - Financial, insurance and real estate services
37 - Construction and mining; installation and repair services
39 - Transport, packaging, storage and travel services
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Natural gas.
(2) Natural gas appliances, namely, dryers, fireplaces, space heaters, barbecues, ovens.
(3) Remote and automatic meter reading equipment.
(4) Natural gas engine drivers.
(5) Natural gas logsets.
(6) Internal and external gas lamps.
(7) Natural gas firepits.
(8) Humidifiers.
(9) Fireplace mantles, surrounds and plinths.
(10) CO detectors.
(11) Natural gas appliances, namely, furnaces, hot water heaters, combination boilers. (1) Transportation of natural gas, namely, the operation of natural gas pipelines and storage facilities.
(2) Marketing of natural gas, namely, title, transfer, exchange, parking, advance gas, storage and balancing services.
(3) Installation, maintenance, production, transmission and distribution of natural gas systems.
(4) Operation of the business of retail sale of natural gas and related products.
(5) Maintenance of natural gas powered vehicles.
(6) Carrying on the business of the sale of appliances, namely, dryers, washers, ranges, fire places and space heaters.
(7) Automatic meter reading services.
(8) Inspection services, namely, inspection of furnaces, checking thermocouples, fan motors, heat exchangers, filters, control systems, wiring and pilot generators.
(9) Installation of gas appliances, namely, furnaces, heaters, ranges, barbecues, dryers, fire pits, refrigerators and fireplaces.
(10) Investigation services, namely, investigation of gas or gas related odors, suspected gas leaks or unsafe natural gas appliance, call outs for fires, explosions, asphyxiation or carbon monoxide poisoning and no heat calls.
(11) Diagnostic and advisory services for commercial industrial and residential customers, namely, diagnostic checks and adjustments for ranges, back ovens, fat fryers, charcoal grills, dryers, single overhead appliances and other gas fired equipment.
(12) Installation, maintenance and repair of temporary secondary check meters.
(13) Installation of primary and secondary service lines providing irrigation customers with engine maintenance and service information.
(14) Furnace services, namely, maintenance, installation and cleaning of furnaces; repair services, namely, maintenance and parts replacement on gas appliances; insurance services, namely, provision of programs or service contracts for inspection, maintenance and repairs to gas appliances; carrying on the business of the sale of refrigerators, dishwashers, garbarators, televisions, video recorders and stereo equipment; and installation of natural gas power systems for motor vehicles.
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Carrying on the business of providing information to the public via connection through the internet; carrying on the business of promotion of sale of products and services from a home page on the internet.
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Carrying on the business of providing information to the public via connection through the internet; carrying on the business of promotion of sale of products and services from a home page on the internet.
37 - Construction and mining; installation and repair services
Goods & Services
(1) Appliances, namely, dryers, washers, hot water heaters, furnaces, ranges, fireplaces and space heaters. (1) Carrying on the business of the sale of appliances, namely, dryers, washers, hot water heaters, furnaces, ranges, fireplaces and space heaters; installation services.
04 - Industrial oils and greases; lubricants; fuels
35 - Advertising and business services
37 - Construction and mining; installation and repair services
Goods & Services
(1) Natural gas for domestic, retail and industrial purposes. (1) Installation, maintenance, production, transmission and distribution of natural gas systems.
(2) Operation of the business of retail sale of natural gas and related products; maintenance of natural gas powered motor vehicles; and installation of natural gas power systems for motor vehicles.
