"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 7775792 | Combustion head for a gas burner A combustion head comprising: a pipe, having a central axis of symmetry, suitable for conveying a flow of comburent air in a combustion chamber, and a plurality of gas tubes spaced out along a circumference. ... | 08/17/2010 |
| 6200131 | Quick-connect burner set for ovens A burner set adaptable to standard commercial ovens that allows for the quick change-out of burners. Sockets, threaded on one end and open on the other end, are installed in existing threaded couplings in communication with a burner manifold. Each socket ... | 03/13/2001 |
| 5429496 | Portable flare boom capable of being easily raised and lowered to change the flaring assembly A portable flare boom for the combustion of waste gases is disclosed for easy installation and maintenance requiring limited labor to adjust and install the flare boom. Preferably, the portable flare boom is for locations close to tank batteries or oil we... | 07/04/1995 |
| 4431402 | Waste gas flare igniter A waste gas flare igniter includes a pair of ignition tubes, each having a fuel line and an electrode extending therethrough to points near the ends of the tubes. The tubes are connected to an air distribution box which is slidably mounted on linear guide... | 02/14/1984 |