Inventor

KARKOW DOUGLAS W

US45 patents

⚠️ This page may combine multiple inventors who share the name “KARKOW DOUGLAS W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KARKOW DOUGLAS W

CLEARSIGN COMB CORP

Method for flame location transition from a start-up location to a perforated flame holder

Burner with a perforated flame holder and pre-heat apparatus

Burner with a perforated reaction holder and heating apparatus

Fuel combustion system with a perforated reaction holder

Burner with a series of fuel gas ejectors and a perforated flame holder

Startup method and mechanism for a burner having a perforated flame holder

Combustion system with flame location actuation

Pre-mixed fuel burner with perforated flame holder

Fuel combustion system with a perforated reaction holder

Radiant wall burner including perforated flame holders

Down-fired burner with a perforated flame holder

Tunnel burner including a perforated flame holder

Fluid heater with perforated flame holder

Perforated flame holder and burner including a perforated flame holder

Perforated burner for a rotary kiln

Fluid heater with a variable-output burner including a perforated flame holder and method of operation

Plug and play burner

Selectable dilution low NOx burner

Fuel combustion system with a perforated reaction holder

Porous flame holder for low NOx combustion

Duplex burner with velocity-compensated mesh and thickness

Electrically controlled combustion fluid flow

Field installed perforated flame holder and method of assembly and installation

Method for electrically controlled combustion fluid flow

Method for operating a combustion system including a perforated flame holder

Combustion system with flame location actuation

Flame visualization control for a burner including a perforated flame holder

Fluid heater with perforated flame holder, and method of operation

Combustion system and method for electrically assisted start-up

High output porous tile burner

Selectable dilution low NOx burner

Perforated flame holder and system including protection from abrasive or corrosive fuel

Burner system including a non-planar perforated flame holder

Horizontally fired burner with a perforated flame holder

Method for low NOx fire tube boiler

CLEARSIGN TECH CORPORATION

Method for a perforated flame holder with adjustable fuel nozzle

Burner and burner system with flange mount

Burner system including a plurality of perforated flame holders

Ultra low emissions firetube boiler burner

Burner including a perforated flame holder spaced away from a fuel nozzle

Burner system including a non-planar perforated flame holder

Control system and method for a burner with a distal flame holder

Perforated flame holder with adjustable fuel nozzle

Burner system with discrete transverse flame stabilizers

Burner system with discrete transverse flame stabilizers