| Patents > Guidance, Tools, and Manuals > Classification > Class Schedule |
|
|
|
| Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
|
| You are viewing a USPC Schedule. |
|
| Class 374 | THERMAL MEASURING AND TESTING |
| Click here for a printable version of this file | |
![[List of Pre Grant Publications for class 374 subclass 1]](../as.gif) | ![[List of Patents for class 374 subclass 1]](../ps.gif) | 1 | THERMAL CALIBRATION SYSTEM |
| | 2 |  By thermal radiation emitting device (e.g., blackbody cavity) |
| | 3 | By immersion in liquid having controlled temperature |
| | 4 | LEAK OR FLAW DETECTION |
| | 6 | DISTANCE OR ANGLE |
| | 8 | FLAMMABILITY TESTING |
| | 9 | EMISSIVITY DETERMINATION |
| | 10 | DIFFERENTIAL THERMAL ANALYSIS |
| | 14 | THERMAL GRAVIMETRIC ANALYSIS |
| | 15 | BY APPLYING KNOWN THERMAL GRADIENT (E.G., INDICATION OF RESPONSE BY LOCATION) |
| | 16 | TRANSFORMATION POINT DETERMINATION (E.G., DEW POINT, BOILING POINT) |
| | 17 | By change in optical property (e.g., transmission) |
| | 21 | By electrical condition of specimen |
| | 22 | By change in motion of movable element |
| | 24 | By change in pressure of flow rate |
| | 25 | By thermal arrest (e.g., time-temperature curve) |
| | 27 | Between gaseous and liquid states |
| | 29 | HEAT FLUX MEASUREMENT |
| | 31 | CALORIMETRY |
| | 32 | Total radiant energy or power measurement |
| | 33 | With control of heat added to or lost from a sample container (e.g., isothermal calorimetry) |
| | 35 | Heat absorbing heigh temperature gas probe (e.g., enthalpy or fluid cooled probe) |
| | 36 | Heat value of combustion (e.g., 'calorific value') |
| | 39 | Gain or loss of heat by heat utilizing load in path of heat exchange fluid |
| | 42 | Throttling calorimeter (e.g., steam quality) |
| | 43 | DETERMINATION OF INHERENT THERMAL PROPERTY (E.G., HEAT FLOW COEFFICIENT) |
| | 45 | THERMAL TESTING OF A NONTHERMAL QUANTITY |
| | 46 | With loading of specimen (e.g., stress or strain) |
| | 53 | Of cure or hardenability |
| | 54 | Of fluid volume |
| | 55 | Expansion or contraction characteristics (e.g., dilatometry) |
| | 57 | Of susceptibility to thermally induced deteriouration, flaw, or failure |
| | 100 | TEMPERATURE MEASUREMENT (E.G., THERMOMETER) |
| | 101 | Composite temperature-related paramenter |
| | 102 |  Time-temperature relationship (e.g., integral, deterioration, change) |
| | 103 |  Time-temperature integration performed by particular circuit arrangement |
| | 104 | Peak (maximum or minimum) with respect to time |
| | 105 |  Indicating tube with sensing material return prevention |
| | 106 | Permanent visual indication (i.e., irreversible) |
| | 107 | Rate of change |
| | 108 | Degree-days |
| | 109 | Climate related (e.g., wind-chill factor, discomfort index) |
| | 110 | Plural spaced temperature function |
| | 117 | By a vibratory effect (e.g., resonant frequency, acoustical) |
| | 120 | In spaced noncontact relationship to specimen |
| | 121 | By thermally emitted radiation |
| | 122 | By microwave arrangement |
| | 123 | Transparent material measurement or compensation (e.g., spectral line, gas, particulate suspension |
| | 124 | With scanning or temperature distribution display |
| | 125 | With fluid flow purging device |
| | 126 | Having emissivity compensating or specified radiating surface |
| | 127 | Having significant frequency limitation or relationship (e.g., peak, ratio) |
| | 128 | Having significant signal handling circuitry (e.g., linearizing, emissivity compensation) |
| | 129 | Comparison with radiation reference standard |
| | 130 | Optical system structure (e.g., lens) |
| | 132 | Sensor or mounting temperature control |
| | 133 | Ambient temperature compensated (e.g., dummy sensor) |
| | 134 | Extrapolation (e.g., simulation, heat flow) |
| | 135 | By fluid flow within or to sensor (e.g., convection, heat transfer, differential pressure) |
| | 136 | Geophysical (e.g., well bore, underwater) |
| | 137 | Temperature distribution or profile |
| | 138 | With fluid flow deflector |
| | 139 | Of molten metal |
| | 141 | Combined with diverse art device |
| | 142 | With other measuring device |
| | 144 | With combustion engine |
| | 147 | With fluid carrying conduit (e.g., shower pipe) |
| | 149 | With cooking compartment or door thereof (e.g., oven) |
| | 150 | With bottle (e.g., nursing) |
| | 151 | With confection or infant pacifier |
| | 152 | With electrical component (e.g., transformer) |
| | 153 | With roll or rotary specimen or support |
| | 155 | With percing element |
| | 156 | With float |
| | 157 | With sampling cup |
| | 158 | With removable cover for sensor (e.g., disposable sheath) |
| | 159 | Nonelectrical, nonmagnetic, or nonmechanical temperature responsive property |