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4449918 Apparatus for regulating furnace combustion
New Patents
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teriological techniques to best assure environmental integrity during the protracted culture period. The composition of the media includes a combination of the blood plasma of fish and commonly available tissue culture fluids and inorganic salts. A nonspecific component of fish blood plasma in combination with the media, supra, was determined to be essential for glochidial transformation to juveniles.
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4449918 APPARATUS FOR REGULATING FURNACE COMBUSTION Richard F Spahr assigned to Selas Corporation of America
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1 Methods and apparatus for regulating furnace combustion air flow are provided which measure a gaseous combustion product in furnace gas after combustion, generate a present signal responsive to the measurement and change flow rate of combustion air in response to the generated signal in a manner the same as flow rate was changed in response to a previously generated signal if the present signal relates to the previous signal in the manner the previous signal related to a signal ancestor thereto but change the flow rate of combustion air in response to the generated signal in a manner opposite the manner the flow rate was changed in response to the previously generated signal if the present signal relates to the previous signal in a manner opposite the manner the previous signal related to a signal immediately ancestor thereto.
A gravity fed water bath process treats waste water from spray rinses containing compounds of copper and like heavy metals. For displacing heavy metals, such as copper, the bath has a substantially pure metal with an electrode potential greater than the heavy metal contained in the rinse water. A system for controlling the pH level of the water bath treatment and for supplying acid at the beginning of the bath, and alkaline material at the bath's end provides a highly acidic pH level for the water bath and heavy metal removal chamber, and adjusts the pH level of the discharged water for satisfactory deposit in municipal sewer systems. A method for displacing the heavy metal from the compound in solution requires exposing the heavy metal compound to a substantially pure metal having an electrode potential greater than the heavy metal of the compound, in an acidic bath whose pH level is controlled. The control of the pH is accomplished by acid sensing probes connected in circuit with a valve control which injects and mixes acid in the bath of a treatment chamber.
4450074 C O N T R O L OF A N A E R O B I C FILTER Shinya Ochiai assigned to Celanese Corporation "~°i
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rV" H I!~ +i;l', i 4450002 HEAVY
METAL
REMOVAL
PROCESS Richard G Durkee
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The operation of an anaerobic methanogenic filter is controlled by measuring the rates at which
xv
teriological techniques to best assure environmental integrity during the protracted culture period. The composition of the media includes a combination of the blood plasma of fish and commonly available tissue culture fluids and inorganic salts. A nonspecific component of fish blood plasma in combination with the media, supra, was determined to be essential for glochidial transformation to juveniles.
+
4449918 APPARATUS FOR REGULATING FURNACE COMBUSTION Richard F Spahr assigned to Selas Corporation of America
+I[Ir ..... z i ' ,4 ---~
•o
lli
1 i !--- 16
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1 Methods and apparatus for regulating furnace combustion air flow are provided which measure a gaseous combustion product in furnace gas after combustion, generate a present signal responsive to the measurement and change flow rate of combustion air in response to the generated signal in a manner the same as flow rate was changed in response to a previously generated signal if the present signal relates to the previous signal in the manner the previous signal related to a signal ancestor thereto but change the flow rate of combustion air in response to the generated signal in a manner opposite the manner the flow rate was changed in response to the previously generated signal if the present signal relates to the previous signal in a manner opposite the manner the previous signal related to a signal immediately ancestor thereto.
A gravity fed water bath process treats waste water from spray rinses containing compounds of copper and like heavy metals. For displacing heavy metals, such as copper, the bath has a substantially pure metal with an electrode potential greater than the heavy metal contained in the rinse water. A system for controlling the pH level of the water bath treatment and for supplying acid at the beginning of the bath, and alkaline material at the bath's end provides a highly acidic pH level for the water bath and heavy metal removal chamber, and adjusts the pH level of the discharged water for satisfactory deposit in municipal sewer systems. A method for displacing the heavy metal from the compound in solution requires exposing the heavy metal compound to a substantially pure metal having an electrode potential greater than the heavy metal of the compound, in an acidic bath whose pH level is controlled. The control of the pH is accomplished by acid sensing probes connected in circuit with a valve control which injects and mixes acid in the bath of a treatment chamber.
4450074 C O N T R O L OF A N A E R O B I C FILTER Shinya Ochiai assigned to Celanese Corporation "~°i
......... ~L~Zg2-%~~%,~..... +...... -°
,6o~
i
i!l, II
/
i
dl
+Jl,ti ~ ,li'i~ "
II1~I'
:hi1! ~:'P
+
I
rV" H I!~ +i;l', i 4450002 HEAVY
METAL
REMOVAL
PROCESS Richard G Durkee
,.e~ ~2oI 2ore
I
,,
!,il ( +,
The operation of an anaerobic methanogenic filter is controlled by measuring the rates at which