DENNIS TIMOTHY BRAZIER
Pilots at 160 St, Greenbush, MN

6718889, Apr 13, 2004

Aug 30, 2002

10/231503

Dennis Brazier - Greenbush MN
Mark Jeremy Reese - Greenbush MN
Rodney Lyle Tolefson - Greenbush MN

Central Boiler, Inc. - Greenbush MN

F23B 700

110234, 110265, 122136 R, 431144

A multi-fuel boiler having multiple, independent draft or combustion air sources and controls. A conventional oil/gas burner and nozzle assembly is fitted to an injector tube and isolated from a thermal transfer medium. A butterfly valve is supported in the injector tube and a motorized linkage directs valve operation. When the burner is non-operational, the valve prevents secondary combustion air from passing through the oil/gas burner to effect combustion in the firebox.

5865165, Feb 2, 1999

Feb 10, 1997

8/797424

Dennis Brazier - Greenbush MN

F24D 900

126101

A low profile, high efficiency, fireplace boiler wherein a burner tray supports a number of gas fired burners and artificial logs within a hearth area of the firebox and about which logs the gas and flames are distributed. Combustion air is drawn from a conduit that surrounds an exhaust conduit at a chimney and circulated via a distributing manifold to the space beneath the burner tray, where it mixes with the fuel. Additional secondary air is directed from ports at intersecting levels of the tray to create flickering. Heated exhaust gasses are directed by a baffle to contact exposed walls of a liquid filled heat exchanger formed into the top and rear walls of the firebox and to pass through the bottoms of a number of vertical plenums mounted within the heat exchanger behind the baffle. A spring biased explosion door is provided beneath the burner tray. Liquid is circulated through the heat exchanger to distribution conduits arrayed about the premises.

5357906, Oct 25, 1994

Sep 7, 1993

8/116850

Dennis Brazier - Greenbush MN

F22B 102

122 32

A single port, internal liquid heat exchange assembly for heating domestic water from a free-standing, low pressure wood fired boiler. A threaded manifold fastener retains the assembly in suspension within a single access port of a conventional water heater. An elongated manifold contains first and second coaxial flow columns which terminate at exposed inlet and outlet ports and communicate with each other within the manifold. Constructions are disclosed having concentric flow columns, convolute and expandable manifold walls, internal bypass ports, vibration dampeners, multi-ported flow transition zones and which may include a sacrificial anode.

7954438, Jun 7, 2011

Mar 12, 2008

12/075530

Dennis Brazier - Greenbush MN, US
Mark J. Reese - Greenbush MN, US
Thomas Pittman - Thief River Falls MN, US
Benjamin A. Reese - Greenbush MN, US

F23M 9/06, F24H 3/10, F23N 5/00

110203, 110309, 110322, 110234, 110185, 126108, 126110 R

A bio-mass fueled boiler operating at delivered efficiencies in excess of 90%. Pre-heated, pressurized primary combustion air is supplied to a primary burn chamber via horizontal and vertical orifice containing conduits. Exhaust gases are directed past a reflective secondary burner supplying pre-heated, pressurized secondary combustion air into a secondary burn/ash collection chamber. Exhaust gases are directed from the secondary burn chamber via exhaust conduits having axial and cross-sectional shapes and wall geometries that promote internal turbulence and heat transfer. One or more gas/oil fired burners are fitted to or between the primary and secondary combustion chambers. Several operating modes are provided via associated blowers, air baffles, liquid and gas fuel conduits, pumps and sundry stove sensors and servos coupled to microprocessor control circuitry.

8186286, May 29, 2012

Jun 7, 2011

13/134409

Dennis Brazier - Greenbush MN, US
Mark J. Reese - Greenbush MN, US
Thomas Pittman - Thief River Falls MN, US
Benjamin A. Reese - Greenbush MN, US

Central Boiler, Inc. - Greenbush MN

F23B 10/02, F23B 80/00

110211, 110297, 110317, 110173 R

A bio-mass fueled boiler operating at delivered efficiencies in excess of 90%. Pre-heated, pressurized primary combustion air is supplied to a primary burn chamber via horizontal and vertical orifice containing conduits. Exhaust gases are directed past a reflective secondary burner supplying pre-heated, pressurized secondary combustion air into a secondary burn/ash collection chamber. Exhaust gases are directed from the secondary burn chamber via exhaust conduits having axial and cross-sectional shapes and wall geometries that promote internal turbulence and heat transfer. One or more gas/oil fired burners are fitted to or between the primary and secondary combustion chambers. Several operating modes are provided via associated blowers, air baffles, liquid and gas fuel conduits, pumps and sundry stove sensors and servos coupled to microprocessor control circuitry.

5329920, Jul 19, 1994

Mar 5, 1993

8/029934

Dennis Brazier - Greenbush MN

F23M 700, F24H 100

126344

An outdoor, self-contained wood fueled furnace. The furnace includes a non-warping, laminated sheet metal door; a rear exiting flue with water discharge means; and a baffled, heat exchanger which surrounds the firebox. The door, particularly, includes an external panel which is secured with a single pin to a crossbroken first panel. An insulator is secured between the first panel and a second interior panel, and the first and second panels are riveted to each other.