| Class 48 | GAS: HEATING AND ILLUMINATING |
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| ACETYLENE |
![[List of Pre Grant Publications for class 48 subclass 1]](../as.gif) | ![[List of Patents for class 48 subclass 1]](../ps.gif) | 1 |  Generation and liquefaction |
| | 2 | Generator and holder |
| | 3R | Generator and mixer |
| Generators |
| | 4 |  Water feed |
| | 5 |  Holder operated |
| | 6 |  Series |
| | 8 | Cell series |
| | 9 | Gasometer and high-pressure holder |
| | 10 | Interior valve |
| | 11 | Rotary cylinder |
| | 12 | Underfeed |
| | 13 | Valveless |
| | 19 | Ebb and flow |
| | 23 | Series |
| | 24 | Cell series |
| | 25 | Capillary |
| | 27 | Percolating |
| | 29 | Expansible carbide container |
| | 30 | Expansible water holder |
| | 31 | Inexpansible gas holder and water feed |
| | 32R | Oscillating |
| | 33 | Rotary cylinder |
| | 34 | Rotary grate |
| | 35 | Underfeed |
| | 36 | Interlocking devices |
| | 37 | Pressure valves |
| | 38 | Carbide feed |
| | 39 | Apron or belt |
| | 40 | Cock |
| | 41 | Dip |
| | 43 | Flap valve |
| | 44 | Hand |
| | 46 | Measured charges |
| | 51 | Piston |
| | 52 | Plate valve |
| | 53 | Pop valve |
| | 54 | Screw |
| | 55 | Slide valve |
| | 58 | Valves, gas and water feed |
| | 56 | Automatic safety escape |
| | 57 | Sludge remover |
| | 59 | Carbide cartridges |
| | 61 | GENERATORS |
| Hydrogen |
| | 62R | Cupola |
| | 71 | Coal, oil and water |
| | 72 | Coal and oil |
| | 73 | Coal and water |
| | 76 | Producers |
| | 77 | Coal |
| | 78 | Water |
| | 85 | Carbon monoxide |
| | 75 | Oil and steam injected |
| | 63 | Air and steam injected |
| | 65 | Electric |
| | 66 | Rotary bottom |
| | 67 | Water jacket |
| | 69 | Water-seal pit |
| | 74 | Refractory filling |
| Fuel agitating |
| | 86R | Chargers |
| | 87 | Accessories |
| | 62A | Partial combustion carburetor |
| | 89 | Retort |
| | 98 | Coal, oil and water |
| | 99 | Coal and water |
| | 100 | Coal and oil |
| | 101 | Coal |
| | 102R | Oil |
| | 103 | Electric heater |
| | 104 | Jet mixers |
| | 105 | Steam injected |
| | 106 | Automatic feed |
| | 107 | Air injected |
| | 102A | Utilizing heat from exhaust gases |
| | 108 | Water |
| | 111 | Wood |
| | 92 | Metal bath |
| | 93 | Oil and gas injected |
| | 94 | Oil and steam injected |
| | 90 | Domestic plants |
| | 113 | Furnaces |
| | 118.5 | Portable |
| | 119 | RETORTS |
| | 127.1 | CONVERSION OF HYDROCARBON GAS AND BLENDING OF PRODUCT WITH FURTHER HYDROCARBON GAS, PROCESS |
| | 127.3 | METHANE (NATURAL GAS) -CONTAINING PRODUCT, OR TREATMENT OR RECOVERY PROCESS |
| | 127.9 | APPARATUS FOR CONVERTING OR TREATING HYDROCARBON GAS |
| | 144 | CARBURETORS |
| | 128 | PURIFIERS |
| | 170 | CENTER AND BY-PASS VALVES |
| | 173 | EXHAUSTERS |
| | 174 | HOLDERS |
| | 180.1 | MIXERS |
| | 181 | Bell and tank |
| | 184 | Diaphragm |
| | 185 | Gravity |
| | 186 | Pump |
| | 187 | Rotary drum |
| | 189.1 | Three or more different fluids entering apparatus |
| | 189.2 | With heating means |
| | 189.3 | Auxilary air inlet |
| | 189.4 | Mixer in flow path of existing mixture |
| | 190 | DISTRIBUTION |
| | 197R | PROCESSES |
| | 198.1 | Manufacture from methane (natural gas) |
| | 198.2 | Employing carbon particles, porous barrier element or molten material |
| | 198.3 | With specified treatment of converted product, e.g., purification, particular cooling, testing, etc. |
| | 198.5 | Employing oxygen donor particles or carbidable metal particles |
| | 198.6 | Specified direction of gas travel through particle mass, e.g., fluidization, flow reversal, etc. |
| | 198.7 | Employing catalytic particles |
| | 198.8 | With specified reactant velocity, angle of entry to reactor or mechanical energy production, e.g., use of internal combustion engine, etc. |
| Hydrogen |
| | 200 | Coal, oil and water |
| | 201 | Coal and oil |
| | 202 | Coal and water |
| | 203 | Producer |
| | 204 | Water |
| | 209 | Wood |
| | 210 | Coal |
| | 211 | Oil |
| | 214R | Oil and steam injected |
| | 216 | Acetylene |
| | 219 | Carbureting |
| | 197FM | Fuel mixtures |
| | 197A | Sewage treatment |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
| DIGESTS | ||
| | DIG1 | RECIRCULATION OF GASES PRODUCED TO LOWER PART OF FUEL BED |
| | DIG2 | SLAGGING PRODUCER |
| | DIG3 | HIGH PRESSURE |
| | DIG4 | POWDERED FUEL INJECTION |
| | DIG5 | DIFFUSION MEMBRANE FOR GAS REACTION OR SEPARATION |
| | DIG6 | UNDERGROUND GASIFICATION OF COAL |
| | DIG7 | SLURRY |
| | DIG8 | INTERNAL COMBUSTION ENGINE FOR GAS MAKING |
| | DIG9 | SOLAR GASIFICATION |
| | DIG10 | COMPUTER RESISTED CONTROL |