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CLASS 62, | REFRIGERATION |
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SECTION I - CLASS DEFINITION
This class includes (1) processes and apparatus peculiar to removing heat from a substance, usually by a change of phase of a coolant or refrigerant, as by evaporation, melting or sublimation, (2) the resultant product of part (1), e.g., ice, liquefied or solidified gases, and (3) processes and apparatus peculiar to handling the latter as a stored product, not elsewhere provided for.
SECTION II - REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
| 23, | Chemistry: Physical Processes, subclasses 295+ for processes crystallizing inorganic compounds or non-metal elements not including a refrigeration step, and when there is an intent to make a single-crystal, see Class 117 whether or not including a refrigeration step. |
| 34, | Drying and Gas or Vapor Contact With Solids, for processes and apparatus for drying by operations other than refrigeration, combined with cooling by refrigeration, particularly subclasses 62+ , 284+, 302+, and 391+ and also for processes and apparatus for cooling only by gas or vapor contact involving no characteristics of refrigeration; see particularly subclasses 428+ and the Notes thereunder. |
| 52, | Static Structures (e.g., Buildings), appropriate subclasses for the structure, per se, of an enclosure which may be defined as forming a refrigerated space, particularly subclasses 380+ , 404.1+ and 479+. |
| 95, | Gas Separation: Processes, for processes involving steps resulting in separation of a gas from a fluid mixture comprising (i) a gas and solid or liquid particles entrained therein, (ii) a liquid and gas entrained therein, or (iii) a plurality of gases wherein the steps are of a physical or material handling nature, involve contacting of materials, or exchange properties through electrical or nonreactive chemical treatment. Class 95 takes gas separation of the type noted above including cooling of the sorbent or cooling of the fluid mixture, but not including evaporative cooling after sorption of the type noted in (c) below. Class 95 takes the cold wall-hot wall thermal diffusion type of separation, regardless of any refrigeration claimed. Class 95 also takes expansion through an orifice of a liquid and gas entrained therein where the gas is evolved through the lowering of the pressure and the cooling effect which inherently results from such pressure reduction is not transferred through a wall to another material. If such heat transfer occurs, classification in Class 62 is proper. Class 62 takes (a) eparation of a constituent from a plurality of gases by a significantly claimed refrigeration step or apparatus; (b) condensation of moisture from the atmosphere as a result of a refrigeration operation; (c) gas drying by sorption followed by contacting the dried gas with a liquid to produce cooling by evaporation; (d) a refrigerated enclosure combined with sorption means; (e) refrigeration producing processes and apparatus combined with steps or means for drying the refrigerant; and (f) extracting a constituent from a plurality of gases by liquefaction and separation (e.g., fractionation or distillation, etc.). |
| 96, | Gas Separation: Apparatus, for gas separation apparatus corresponding to the processes of Class 95. The line for apparatus between Class 96 and Class 62 is the same as the line above for processes between Class 95 and Class 62. |
| 99, | Foods and Beverages: Apparatus, subclasses 455 , 470 and 517 for apparatus including cooling means. |
| 100, | Presses, subclasses 92+ for a press with means to cool the material compacted by the press, especially subclasses 310, 312, and 314 for a conveyor-type press having means to cool the article or press. |
| 109, | Safes, Bank Protection, or a Related Device, subclass 63.5 for a closure with means to render the closure lock ineffective, e.g., a refrigerator with safety features to prevent persons from being locked therein. |
| 117, | Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor, for processes and non-coating apparatus for growing therein-defined single-crystal of all types of materials, including inorganic or organic, including those having refrigeration steps or means. |
| 126, | Stoves and Furnaces, subclass 273.5 for a domestic oven using a heat accumulator (e.g., fireless cooker, etc.) or subclass 375.1 for an open-top liquid heating vessel that may include a lid having a heat accumulator. |
| 137, | Fluid Handling, appropriate subclass for processes and apparatus for fluid handling of general utility. |
| 138, | Pipes and Tubular Conduits, subclasses 100 through 178,especially subclass 149 for insulation on pipe. |
| 165, | Heat Exchange, particularly subclasses 58+ for apparatus adapted for interchangeably, convertibly or alternately heating and cooling. See the reference to Class 62 in the definition of subclass 58 of Class 165. |
| 166, | Wells, subclass 57 for well apparatus including refrigeration means, subclasses 265+ for well processes in which fluid may be separated by refrigeration, and subclass 302 for well processes including cooling. |
| 201, | Distillation: Processes, Thermolytic, appropriate subclass for a process of thermolytic distillation of a solid carbonaceous material. |
| 202, | Distillation: Apparatus, appropriate subclass, for apparatus for distillation of general utility. |
| 203, | Distillation: Processes, Separatory, appropriate subclass for a process of separatory distillation of general utility and see Class 203 class definitions for the line between separatory distillation and this class. |
| 210, | Liquid Purification or Separation, appropriate subclass for processes and apparatus which may involve cooling. The following subclasses are particularly noted: subclass 773 for processes involving conversion of solids to liquids before separation, subclass 774 for processes involving heating or cooling and separation, subclass 149 for separating apparatus having means responsive to a thermal condition, and subclasses 175+ for a separator with a heater or heat exchanger. |
| 215, | Bottles and Jars, appropriate subclass for a bottle or jar of general utility. |
| 217, | Wooden Receptacles, appropriate subclass for a crate or shipping vessel of general utility. |
| 220, | Receptacles, appropriate subclass for a tank or receptacle having compartments made mostly of metal, or a tank or container having a mere jacket in which a cooling or heating fluid may be admitted when there is no directing means for circulating the fluid in the jacket. |
| 221, | Article Dispensing, appropriate subclass for mechanism having a specific article dispensing feature in combination with a feature too general for classification in Class 62. |
| 222, | Dispensing, appropriate subclass for a receptacle having a specific dispensing feature with a feature too general for classification in Class 62. |
| 236, | Automatic Temperature and Humidity Regulation, appropriate subclass for a control of general utility. A refrigerant controlling or expansion valve is of general utility unless features resulting in refrigeration production are included. |
| 237, | Heating Systems, appropriate subclass for a heating system which may use the heat rejecting portion of a refrigeration system with additional heating means. |
| 241, | Solid Material Comminution or Disintegration, appropriate subclass for processes and apparatus for comminuting solid refrigerants and also comminuting processes and apparatus provided with cooling means. See section 6 of the class definition of that class (241) for the line. |
| 249, | Static Molds, subclasses 69+ for ice cube trays including means to release ice cubes from a tray, and subclasses 129+ for ice cube trays, per se, for forming plural cubes. |
| 252, | Compositions, particularly subclasses 67+ for (1) admixtures of ingredients, or an old compound limited to use as a refrigerant, (2) processes of refrigeration comprising any known cycle and distinguished solely by the composition or compound therein, when apparatus structure is not included. The preceding are placed in Class 252 even though the freezing or boiling point or temperature of use is specific. |
| 260, | Chemistry of Carbon Compounds, including the related classes for processes of treating or modifying non-hydrocarbon organic compounds: by crystallization wherein the crystallization is not brought about by refrigeration; wherein crystallization, by any means including refrigeration, is combined with synthesis or modification of said compounds by chemical means; or wherein the separation of carbon compounds is accomplished exclusively by physical means other than refrigeration. |
| 261, | Gas and Liquid Contact Apparatus, appropriate subclass, for a gas and liquid contact device having no means specialized to cooling a material out of contact with the contacting fluids. |
| 264, | Plastic and Nonmetallic Article Shaping or Treating: Processes, for molding processes, per se, for materials within the class definition, noting particularly subclass 28 for processes including freezing or cooling to a temperature of zero °C. |
| 299, | Mining or In Situ Disintegration of Hard Material, appropriate subclass for a process or apparatus for recovering or working naturally occurring ice in situ and particularly subclasses 24+ for an ice working machine or cutter. |
| 312, | Supports: Cabinet Structure, particularly subclasses 31 , 31.01, 36, 116, 213, 236, 253, and 400+ of that class (312) and see the Notes thereto, for cabinet structure including an insulated wall cabinet of general utility. |
| 366, | Agitating, appropriate subclasses for agitating process or apparatus of general utility; also, for agitating apparatus involving a cooling means where that means is only a container or a container with means for effecting agitation therein, and in either case there is no modification of either the container or the agitating means restricting the use of the apparatus to refrigeration. |
| 422, | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, subclasses 1+ for processes of preserving by operations other than refrigeration not provided for elsewhere; subclasses 245.1+ for non-coating crystallization apparatus not including chemical reaction means, not including refrigeration means, and not provided for elsewhere; and subclasses 129+ for non-coating crystallization apparatus including means for chemical reaction, which may or may not include refrigeration means, and not provided for elsewhere. |
| 425, | Plastic Article or Earthenware Shaping or Treating: Apparatus, appropriate subclasses for molding apparatus, per se, for merely shaping particulate ice (water or carbon dioxide) into a desired configuration; subclasses 117+ for a specific refrigeration apparatus and mold means to form a composite product from a fluent material and a preform. Class 62 provides for the combination of plastic material shaping or reshaping apparatus combined with refrigeration apparatus for the material shaped. |
| 426, | Food Edible Material: Processes, Compositions, and Products, appropriate subclasses for frozen food products and food working processes combined with freezing. |
| 428, | Stock Material or Miscellaneous Articles, appropriate subclasses for a stock material product in the form of a single or plural layer web or sheet, and especially subclasses 304.4+ for a composite web or sheet including a porous or cellular layer. |
| 454, | Ventilation, for means and related processes for ventilation of an enclosure not specialized to refrigeration. The mere inclusion of a cooler for the air or means subjecting the air to air-liquid contact is not considered a means specialized to refrigeration. |
| 585, | Chemistry of Hydrocarbon Compounds, for processes including a step of refrigeration which treats or modifies only hydrocarbon compounds (claimed or disclosed). Such processes disclosing any non-Class 585 (i.e., non-hydrocarbon) organic compound are placed according to the class line with Class 260 and related classes. Especially see subclass 15 for treating or modifying a crystalline hydrocarbon hydrate and subclasses 812+ for a purification or separation process for recovery of a hydrocarbon. |
SUBCLASSES
1 | CONSUMABLE PRODUCTS PRODUCED BY COOLING: | ||||||||
| This subclass is indented under the class definition. A congealed or frozen article constituting the product produced
by processes or apparatus which is intended to be used only once,
e.g., a frozen or chilled unit or mixture of ice and liquid.
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3.1 | USING ELECTRICAL OR MAGNETIC EFFECT: |
| This subclass is indented under the class definition. Process or apparatus in which cooling is produced by the influence of an electrical current or the field surrounding it upon a conductive or magnetic material. | |
3.2 | Thermoelectric; e.g., Peltier effect: | ||||
This subclass is indented under subclass 3.1. Process or apparatus in which cooling is produced by either
the conversion of heat into electricity or that of electricity into
heat; e.g., the Peltier effect.
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3.3 | Heat pump, selective heating and cooling: | ||
This subclass is indented under subclass 3.2. Process or apparatus wherein the thermoelectric unit moves
thermal energy from one location to another, and can be used alternatively
to either heat or cool an object.
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3.4 | Including dehumidifying and condensate handling: |
| This subclass is indented under subclass 3.2. Process or apparatus wherein the thermoelectric unit is arranged in a system used to remove ambient humidity as condensate, and which includes means to manipulate the removed condensate. | |
3.5 | Made with flexible heat exchanger material; e.g., blanket, wearing apparel, etc.: | ||||
| This subclass is indented under subclass 3.2. Process of apparatus wherein the thermoelectric unit consists
of pliant material (e.g., fabric) and can be used in an article
of clothing, a blanket, etc.
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3.6 | Interior of enclosure cooled; e.g., refrigerator: | ||||
This subclass is indented under subclass 3.2. Process or apparatus wherein the thermoelectric unit is
used to lower the temperature of a confined space.
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3.61 | Having vehicle feature; e.g., cooling cart, car, truck, boat, etc.: | ||
| This subclass is indented under subclass 3.6. Process or apparatus wherein the cooled enclosure has some
vehicular feature, such as wheels, casters, skids, pontoons, etc.,
adapting it for transporting people or cargo.
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3.62 | Portable, having transporting feature; e.g., handle: | ||
| This subclass is indented under subclass 3.6. Process or apparatus wherein the cooled enclosure is intended
to be transported and includes means by which a person may carry
or grip the unit or has means for attaching it to a person or vehicle;
e.g., a picnic basket, lunch box, insulin cooler, bottle cooler,
etc.
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3.63 | Icemaker: | ||
| This subclass is indented under subclass 3.6. Process or apparatus wherein the enclosure is specifically
adapted for converting water into its solid phase.
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3.64 | Beverage dispenser: | ||
| This subclass is indented under subclass .36. Process or apparatus wherein the enclosure is designed to
hold a consumable liquid (water, beer, soda, etc.), and means is
provided for discharging the liquid from the enclosure.
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3.7 | Including specific circuitry or heat exchanger material: |
| This subclass is indented under subclass 3.2. Process or apparatus wherein significance is attributed to either electric circuitry associated with the cooling unit or to a material from which the cooling unit is constructed. | |
4 | CHEMICAL REACTION OR SOLIDS DISSOLVING: | ||||||||
| This subclass is indented under the class definition. Subject matter in which a refrigeration effect is produced
by (1) a chemical reaction or (2) the dissolving of a solid in a
liquid.
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5 | VORTEX TUBE, E.G., RANQUE: |
| This subclass is indented under the class definition. Subject matter in which a compressible fluid is caused to flow along a stationary curvilinear path under pressure, producing a refrigeration effect. | |
6 | GAS COMPRESSION, HEAT REGENERATION AND EXPANSION, E.G., STIRLING CYCLE: | ||
| This subclass is indented under the class definition. Subject matter in which the refrigeration cycle comprises
(1) confining a constant mass of a gas in a chamber whose volume
varies from a maximum to a minimum, (2) compressing it, (3) cooling
it, and (4) expanding it; the gas remaining as such throughout the
cycle; the action of stages (2), and (3) being alternate with heat
storage and return (regeneration) between these stages.
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7 | UTILIZING FUEL AS REFRIGERANT: | ||
| This subclass is indented under the class definition. Subject matter in which the refrigerant is used as a refrigeration
producer and consumed as a fuel.
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45.1 | STORAGE OF SOLIDIFIED OR LIQUIFIED GAS (E.G., CRYOGEN): | ||||||||||||||||||||
| This subclass is indented under the class definition. Process or apparatus for storing a product of refrigeration
comprising a substance in solid or liquid phase, which substance
boils at or below standard atmospheric temperature when under standard
atmospheric pressure.
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46.1 | With sorbing or mixing: | ||||
| This subclass is indented under subclass 45.1. Process or apparatus in which the product of refrigeration
is either (a) taken into and held by a sorptive material, (b) acted
upon by a solvent, or (c) otherwise mixed with a diverse fluid.
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46.2 | Mixing of substance with hydrogen: | ||||
This subclass is indented under subclass 46.1. Process or apparatus wherein the product of refrigeration
is combined with hydrogen.
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46.3 | Sorbing into capillary material: |
| This subclass is indented under subclass 46.1. Process or apparatus wherein the product of refrigeration is absorbed into a porous material. | |
47.1 | With conservation of cryogen by reduction of vapor to liquid within storage receptacle: | ||||
This subclass is indented under subclass 45.1. Process or apparatus wherein vapor pressure within the receptacle
is limited by reducing the vapor to its liquid phase while in the
receptacle.
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48.1 | With vapor discharged from storage receptacle: | ||
| This subclass is indented under subclass 45.1. Process or apparatus wherein vapor within the receptacle
is removed from the receptacle.
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48.2 | And subsequently restored to receptacle as liquid: |
| This subclass is indented under subclass 48.1. Process or apparatus wherein the removed vapor is condensed and then returned to the receptacle as a liquid. | |
48.3 | And subsequently used to cool receptacle: |
| This subclass is indented under subclass 48.1. Process or apparatus wherein the removed vapor is used to cool either the receptacle"s walls or an external component of the receptacle (e.g., a radiation shield, the receptacle"s, foundation). | |
48.4 | Discharge caused by ignition of combustible gas: |
| This subclass is indented under subclass 48.1. Process or apparatus wherein combustion of a gas results in vaporization and discharge of stored liquid. | |
49.1 | With measuring: | ||||
| This subclass is indented under subclass 45.1. Process or apparatus wherein a characteristic of the product
of refrigeration is measured.
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49.2 | Of liquid level: |
| This subclass is indented under subclass 49.1. Process or apparatus wherein the height of the stored product within the receptacle is measured. | |
50.1 | Liquified gas transferred as liquid: | ||
| This subclass is indented under subclass 45.1. Process or apparatus wherein the product of refrigeration
is removed from the receptacle as a liquid.
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50.2 | With vaporizing of liquified gas downstream of storage: | ||
This subclass is indented under subclass 50.1. Process or apparatus wherein the liquid becomes a vapor
subsequent to removal from the receptacle.
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50.3 | Energy converted to work (e.g., used to drive prime mover): |
| This subclass is indented under subclass 50.2. Process or apparatus wherein the potential released by vaporization is transformed into applied power; e.g., used to drive a turbine or motor. | |
50.4 | Operates valve which controls flow of liquid: |
| This subclass is indented under subclass 50.2. Process or apparatus wherein the potential adjusts a valve used to regulate the liquid being removed from the receptacle. | |
50.5 | In phase separator: |
| This subclass is indented under subclass 50.2. Process or apparatus wherein the moved liquid enters a chamber which allows partial vaporization, from which the remaining liquid and the vapor are discharged separately. | |
50.6 | Specific pump structure: |
| This subclass is indented under subclass 50.1. Process or apparatus wherein significance is attributed to a means for generating flow of the liquid; i.e., a pump. | |
50.7 | Specific conduit, valve, or coupling structure: |
| This subclass is indented under subclass 50.1. Process or apparatus wherein significance is attributed to a component adapted to constrain or control flow of the liquid. | |
51.1 | Including cryostat: |
| This subclass is indented under subclass 45.1. Process or apparatus wherein the cryogen is contained by a portable vessel and cools a device contained by the vessel (e.g., an infrared detector). | |
51.2 | Joule-Thompson liquefier: |
| This subclass is indented under subclass 608. Subject matter wherein the liquefaction of helium is effected bypassage from a high pressure to a low pressure through an adjustable orifice and the exiting liquid precools the incoming gas by indirect heat exchange. | |
52.1 | Spraying of cryogen: |
| This subclass is indented under subclass 45.1. Process or apparatus including discharge of the product of refrigeration as a stream of droplets, or means for producing such a stream (e.g., a nozzle). | |
53.1 | Underground or underwater storage: | ||
| This subclass is indented under subclass 45.1. Process or apparatus wherein the product of refrigeration
is stored in a subterranean or subaqueous receptacle (e.g., a tank,
a void, etc.) adapted to hold a cryogen.
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53.2 | Storage in modified vehicle (e.g., ship, truck, etc.): |
| This subclass is indented under subclass 45.1. Process or apparatus wherein the product of refrigeration is stored in a conveyance adapted to carry a cryogen. | |
54.1 | Cryogen stored in both phases (e.g., as slush or gel): | ||||
This subclass is indented under subclass 45.1. Process or apparatus wherein the product of refrigeration
is stored as a mixture of substances having diverse phase characteristics; e.g.,
a slush, a slurry, a colloidal suspension, etc.
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54.2 | Controlled conversion of solidified gas to another phase: | ||||||
| This subclass is indented under subclass 45.1. Process or apparatus wherein a product of refrigeration
in solid phase is transformed at a regulated rate into either a
liquid or gaseous phase.
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54.3 | Storing solidified gas: | ||||||||
| This subclass is indented under subclass 45.1. Process or apparatus wherein the product of refrigeration
is stored in solid phase.
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55.5 | LOW PRESSURE COLD TRAP PROCESS AND APPARATUS: | ||||||||||||||
| This subclass is indented under the class definition. Processes and apparatus involving a condensing device which
in use operates substantially below 0° C and substantially
below atmospheric pressure to condense a material which exists as
a gas in the feed line to the condensing device by condensing and
retaining the material as a liquid or solid on a heat exchange surface
which is kept sufficiently cold by means which is usually a liquefied
or solidified gas or mixture thereof to cause the desired condensation.
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56 | PROCESSES: | ||
| This subclass is indented under the class definition. Processes of refrigeration.
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57 | Suspending in upwardly directed current: | ||||
| This subclass is indented under subclass 56. Processes wherein particles are suspended by an upwardly
directed fluid current.
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59 | Accumulating holdover ice in situ: | ||||||
| This subclass is indented under subclass 56. Processes including making a solid refrigerating medium
in situ by a refrigeration cycle, to be used to cool during high
refrigeration demand or failure of the cycle.
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60 | Packaging: | ||||||||||
| This subclass is indented under subclass 56. Processes including enclosing a refrigerated material in
a closed or closable receptacle to form a completed transportable
unit.
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61 | Utilizing motion of vehicle: | ||||
| This subclass is indented under subclass 56. Processes including utilizing the motion of a carrier to
effect the refrigeration process.
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62 | Treating an article: | ||||||||||
| This subclass is indented under subclass 56. Processes in which material to be cooled or refrigerated
is an article comprising a physical entity identifiable as such
before congelation and having a fixed boundary surface including particulate
material, a removable container enclosing a liquid or a living thing.
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63 | Moving through cooling zone during cooling: | ||||||
| This subclass is indented under subclass 62. Processes wherein the article is moved through a cooling
zone or past cooling means while the cooling is effective on the
article.
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64 | By contacting with liquid: | ||||||
| This subclass is indented under subclass 62. Processes in which the cooling is effected by contacting
the article with a coolant liquid.
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65 | Diverse sequential temperatures, e.g., precooling: | ||
| This subclass is indented under subclass 62. Processes wherein a material is sequentially subjected to
diverse temperatures.
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66 | Congealing flowable material, e.g., ice making: | ||||||||||||||||||||||
| This subclass is indented under subclass 56. Processes for congealing material initially in a flowable
condition, e.g., ice cream or ice making or condensing fluid to
solid.
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67 | With filtering or gravitational separating: | ||||||||
| This subclass is indented under subclass 66. Processes including filtration or gravitational separation.
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68 | Agitating: | ||||||
| This subclass is indented under subclass 66. Processes including agitation of a confined body of material
during freezing.
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69 | Introducing gas, e.g., air: | ||||
This subclass is indented under subclass 68. Processes wherein air or gas is introduced in a material
being frozen.
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70 | By injecting: | ||||
| This subclass is indented under subclass 69. Processes wherein the gas is injected into the agitated
material.
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71 | Removing product from congealing surface: | ||
| This subclass is indented under subclass 66. Processes including removal of frozen material from a mold
or cooling surface.
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72 | Flexing supporting surface: | ||
| This subclass is indented under subclass 71. Processes wherein a frozen material is removed by flexing
a supporting surface, e.g., endless belt.
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73 | By heating: | ||
| This subclass is indented under subclass 71. Processes including application of heat.
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74 | Spraying or dripping: | ||||||||||
| This subclass is indented under subclass 66. Processes wherein a material is sprayed or dripped into
a zone.
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75 | Sequential stages, e.g., composite block making: | ||
| This subclass is indented under subclass 66. Processes wherein a step of freezing or cooling is followed
by another step of freezing, or a prefrozen material is added to
another material which is then frozen into a composite solid.
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76 | With preliminary refrigerant manufacturing: | ||||||||
| This subclass is indented under subclass 56. Processes which includes producing a refrigerant and introducing
it into a refrigerating system.
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77 | Assembling, charging, or repairing of refrigeration producer: | ||||||||||
| This subclass is indented under subclass 56. Processes which include assembling parts of a refrigeration
apparatus, installing the refrigeration apparatus in its position
of use, charging the apparatus with a fluid (usually refrigerant or
lubricant) or repairing some part of the apparatus which has been
damaged.
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78 | Deodorizing, antisepticizing or providing special atmosphere: | ||||||||||||||||||
| This subclass is indented under subclass 56. Processes which include deodorizing, antisepticizing or
germiciding the material which is subjected to refrigeration or
providing a special atmosphere in a cooled space.
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79 | Exchanging heat between plural systems, e.g., disparate: | ||||||||||||||
This subclass is indented under subclass 56. Processes in which (1) heat is exchanged with a disparate
(nonrefrigeration) system, or (2) refrigeration is produced by plural
separate systems, there being a heat transfer relationship between
the systems.
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80 | Defrosting or frost inhibiting: | ||||
| This subclass is indented under subclass 56. Processes which include inhibiting deposition of, or removing
frozen atmospheric condensate from, a heat absorbing surface of
refrigeration apparatus.
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81 | By utilizing working fluid of refrigeration producer | ||
| This subclass is indented under subclass 80. Processes accomplished by utilizing a fluid used in the
refrigeration process.
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82 | By utilizing fluid strange to system : | ||
| This subclass is indented under subclass 80. Processes wherein a fluid, which is unnecessary to the refrigeration
process is utilized.
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83 | Preventing slugging to compressor: | ||||||||
| This subclass is indented under subclass 56. Processes in which a liquid is prevented from entering the
suction inlet to the compressor.
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84 | Lubricant handling: | ||||||||
| This subclass is indented under subclass 56. Processes which involves handling a liquid lubricant within
a circuit.
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85 | Separating or preventing formation of undesirables: | ||||||||||||||||||
| This subclass is indented under subclass 56. Processes which include the separating or prevention of
the formation of undesirables in a refrigerant, on the internal
surface of a refrigerant container or from a material being cooled, e.g.,
internal freeze inhibition.
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86 | Reducing pressure on compressed gas: | ||||||
| This subclass is indented under subclass 56. Processes in which a gas is expanded to such a degree that
a discernible drop in the temperature thereof is produced thereby,
the gas remaining as such during the cooling operation.
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| |||||||
87 | Converting energy of expansion to mechanical movement: | ||||
| This subclass is indented under subclass 86. Processes in which a portion of the energy of expansion
is converted to usable mechanical movement.
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| |||||
88 | With reheat of gas stream: | ||
| This subclass is indented under subclass 87. Processes in which the gas stream is reheated subsequent
to expansion.
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| |||
89 | Circulating external gas: | ||||||
| This subclass is indented under subclass 56. Processes in which a gas external of a refrigeration producer
is caused to circulate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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| |||||||
90 | With reheating: | ||||||||||
| This subclass is indented under subclass 89. Processes in which the gas is heated following the cooling
operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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| |||||||||||
91 | With adding of moisture: |
| This subclass is indented under subclass 89. Processes in which moisture is added to the gas being cooled. | |
92 | With removing of moisture: | ||||
| This subclass is indented under subclass 91. Processes in which moisture is removed from the gas.
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| |||||
93 | With removing of moisture: | ||
| This subclass is indented under subclass 89. Processes in which moisture is removed from the gas.
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94 | By sorption: | ||
| This subclass is indented under subclass 93. Processes by passing the gas in contact with a sorbent.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
95 | Plural cooling, e.g., precooling by exhaust: | ||||
| This subclass is indented under subclass 89. Processes in which gas is subjected to the cooling action
of plural heat absorbing operations or of separate and distinct
operations of a heat absorption.
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| |||||
96 | Indirect cooling using closed circuit heat transfer fluid: | ||
| This subclass is indented under subclass 89. Processes in which heat from the circulating gas being cooled
is transferred to a heat absorber by indirect heat exchange through
an intermediate fluid.
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| |||
97 | Combining streams having diverse temperatures: | ||
| This subclass is indented under subclass 89. Processes in which two streams of gas having diverse temperatures
are combined into a single stream.
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| |||
98 | Fluid external of refrigeration producing cycle: | ||
| This subclass is indented under subclass 56. Processes in which refrigeration is used to absorb heat
from a fluid (usually a liquid) which is isolated from the working
fluid of a refrigeration cycle.
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| |||
99 | Indirect by using heat transfer fluid external of cycle: | ||||
| This subclass is indented under subclass 98. Processes in which the heat removed from the external cooled
fluid is transferred to a heat absorber by indirect heat exchange
through an intermediate fluid.
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| |||||
100 | Vacuumizing an open outlet chamber: | ||||||
| This subclass is indented under subclass 56. Processes in which a subatmospheric pressure is created
in a chamber by removing a gas or vapor from it.
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| |||||||
101 | Evaporation induced by sorption: | ||||||
| This subclass is indented under subclass 56. Processes in which a liquid is evaporated to produce cooling
and the vapor is sorbed by a sorbent.
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| |||||||
102 | Using diverse refrigerants: | ||
| This subclass is indented under subclass 101. Processes in which plural refrigerants are evaporated in
presence of each other.
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| |||
103 | With modulated flow rate of fluid: |
| This subclass is indented under subclass 101. Processes in which a fluid is circulated at varying rates. | |
104 | By varying heat input or output: | ||||
| This subclass is indented under subclass 103. Processes in which fluid circulation is altered by varying
the heat input or the heat rejected by the system.
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| |||||
105 | Varying non-refrigerant fluid flow: | ||||
| This subclass is indented under subclass 103. Processes in which the flow of a nonrefrigerant fluid, e.g.,
inert gas or a noncondensible gas is varied.
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| |||||
106 | Intermittent operating of generation and sorption cycle: | ||||
| This subclass is indented under subclass 101. Processes in which generation of refrigerant vapor alternates
with absorption.
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| |||||
107 | With absorption liquid circulation aided by system generated pressure: | ||
| This subclass is indented under subclass 101. Processes wherein the sorption liquid is transferred between
the generator and sorber due to pressures of fluids generated within
the system.
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| |||
108 | With liquid refrigerant transfer to evaporator against gravity: |
| This subclass is indented under subclass 101. Processes including the transferral of liquid refrigerant to and through the evaporator against gravity. | |
109 | Cooling by evaporation of refrigerant from sorption solution: |
| This subclass is indented under subclass 101. Processes wherein the cooling is effected by vaporization of refrigerant from a sorption solution. | |
110 | With diffusion of refrigerant into inert gas: | ||
| This subclass is indented under subclass 101. Processes wherein an inert gas is admitted into or overlies
a body of liquid refrigerant, the liquid refrigerant diffusing into
the inert gas.
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| |||
111 | With forced circulation between evaporator and sorber: | ||
| This subclass is indented under subclass 110. Processes in which the fluid is caused to circulate between
the evaporator and sorber due to the creation of conditions other
than those which allow the fluid to circulate due to differences
in density.
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| |||
112 | Utilizing particular refrigerant and/or sorbent materials: | ||||
| This subclass is indented under subclass 101. Processes in which a specific refrigerant and/or sorbent
is used.
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| |||||
113 | Transferring heat between diverse function portions of refrigeration cycle: | ||||
| This subclass is indented under subclass 56. Processes in which one portion of a refrigeration system
having a first function is in heat exchange relation with another
portion having another function.
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| |||||
114 | Employing diverse materials or particular material in refrigeration circuit: | ||||||||||||
| This subclass is indented under subclass 56. Processes employing diverse refrigerants or a particular
material as a refrigerant.
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115 | Compressing, condensing and evaporating: | ||||
| This subclass is indented under subclass 56. Processes which include compressing, condensing and evaporating
a refrigerant.
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| |||||
116 | Utilizing motive energy of fluid to compress: | ||||
| This subclass is indented under subclass 115. Processes in which the motive energy of a fluid is employed
to compress the fluid in the refrigeration cycle.
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| |||||
117 | Dividing refrigerant flow, e.g., bypass parallel units: | ||||||
| This subclass is indented under subclass 115. Processes in which the refrigerant in at least one portion
of its flow path is divided into two or more flow paths.
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| |||||||
118 | Pumping fluid in closed circuit: | ||||||||
| This subclass is indented under subclass 56. Processes wherein a fluid is pumped in a closed circuit,
absorbing and rejecting heat.
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| |||||||||
119 | Condensing and evaporating: | ||||
| This subclass is indented under subclass 56. Processes comprising heat absorption in one area and heat
dissipation in another area, and utilization of a fluid heat transfer
medium moving between said area which medium changes state in each
of said absorption and dissipation steps.
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| |||||
120 | Spaced cooling steps: | ||||
| This subclass is indented under subclass 56. Processes in which the operations are physically or temporarily
spaced.
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| |||||
121 | Gas and liquid contact: | ||
| This subclass is indented under subclass 56. Processes in which cooling is effected by reasons of mutually
contacting a gas and a liquid.
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| |||
122 | Combining fluids having diverse temperatures: | ||
| This subclass is indented under subclass 56. Processes in which streams of fluids having diverse temperatures
are combined.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
123 | SEPARATOR FOR SOLIDIFIED CONSTITUENT OF LIQUID MIXTURE: | ||||||||||
| This subclass is indented under the class definition. Apparatus having means to separate a constituent of a liquid
mixture by cooling it, e.g., congealing the constituent, and means
to remove the congealed constituent from the liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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| |||||||||||
124 | With heater for liquid mixture container: |
| This subclass is indented under subclass 123. Apparatus including means for heating a liquid mixture container. | |
125 | WITH INDICATOR OR TESTER: | ||||||
| This subclass is indented under the class definition. Apparatus provided with an indicator or testing means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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126 | Operatively correlated with automatic control: |
| This subclass is indented under subclass 125. Apparatus in which there is operative correlation between indicating and automatic refrigeration control means. | |
127 | Diverse function indicators or testers: | ||
| This subclass is indented under subclass 125. Apparatus comprising a plurality of different function indicating
or testing means.
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128 | Atmospheric condensation accumulation, e.g., frost: | ||
| This subclass is indented under subclass 125. Apparatus in which the presence of atmospheric condensate
is indicated.
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129 | Condition sensing: | ||||
| This subclass is indented under subclass 125. Apparatus which automatically responds to a variable condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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130 | External cooled material: |
| This subclass is indented under subclass 129. Apparatus in which the condition is material being cooled. | |
131 | Position or extent of motion of movable element : | ||
| This subclass is indented under subclass 125. Apparatus in which the position or extent of motion of a
movable element is indicated.
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132 | AUTOMATIC CONTROL: | ||||||||||
| This subclass is indented under the class definition. Apparatus comprising means to sense an operating condition
or change of operating condition and exert a control on cooling
means or means handling material cooled or to be cooled.
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133 | Responsive to vehicle body motion or traction: | ||
| This subclass is indented under subclass 132. Apparatus responsive to any phase of motion of a vehicle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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134 | Electrical generator: |
| This subclass is indented under subclass 133. Apparatus including an electrical motor-generator. | |
135 | By congealed removable product condition: |
| This subclass is indented under subclass 132. Apparatus comprising means responsive to a change of condition of a consumable product undergoing congelation. | |
136 | By change of consistency, e.g., viscosity or overrun: |
| This subclass is indented under subclass 135. Apparatus in which the condition is a change of consistency. | |
137 | By accumulation of product | ||
| This subclass is indented under subclass 135. Apparatus in which the sensing means responds to an accumulation
of the congealed product.
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| |||
138 | On heat absorber: |
| This subclass is indented under subclass 137. Apparatus wherein the accumulation is on a cooled surface. | |
139 | By accumulation on freezing surface, e.g., ice: | ||
| This subclass is indented under subclass 132. Apparatus responsive to the accumulation of congealed material
on a freezing surface.
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| |||
140 | By frost, i.e., atmospheric condensate: | ||||
| This subclass is indented under subclass 139. Apparatus in which the condition sensed is the accumulation
of frozen atmospheric condensate.
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141 | Of closed system sorbent type: | ||
| This subclass is indented under subclass 132. Apparatus controlling a refrigeration producer utilizing
a sorbent for the refrigerant.
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| |||
142 | Discontinuous operation of refrigerant or sorbent container unit: |
| This subclass is indented under subclass 141. Apparatus in which a refrigerant or sorbent containing element is caused to be intermittently and repeatedly subjected to generating-condensing pressure and absorbing-evaporating pressure. | |
143 | Of intermittent generator-sorber unit; |
| This subclass is indented under subclass 142. Apparatus wherein the sorbent container serves at one time as a still and at another time as a sorber. | |
144 | Plural unit sequence or alternation: |
| This subclass is indented under subclass 143. Apparatus comprising at least two sorbent containing units controlled for alternate or sequential generation or sorption. | |
145 | Serially connected type: |
| This subclass is indented under subclass 144. Apparatus in which the units are serially interconnected for refrigerant or absorbent flow from one to another. | |
146 | Of cooling fluid: | ||
| This subclass is indented under subclass 143. Apparatus wherein flow of cooling medium for a unit is controlled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
147 | Including sorbent refrigerant flow: |
| This subclass is indented under subclass 146. Apparatus in which sorbent or refrigerant flow is also controlled. | |
148 | Of heating means: |
| This subclass is indented under subclass 141. Apparatus including means to control the supply of heat to a sorbent regenerator. | |
149 | Withdrawing or adding refrigerant from or to normally closed system: | ||
| This subclass is indented under subclass 132. Apparatus which controls or responds to means adding or
withdrawing refrigerant to or from a closed circuit type refrigeration
system, relative to a source external of the system.
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| |||
150 | Preventing, removing or handling atmospheric condensate: |
| This subclass is indented under subclass 132. Apparatus which is responsive to or controls means which prevents, removes or handles atmospheric condensate. | |
151 | Defrosting: | ||||||
| This subclass is indented under subclass 150. Apparatus which relates to removal of frozen atmospheric
condensate.
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| |||||||
152 | Limited area, e.g., preferred zone: | ||
| This subclass is indented under subclass 151. Apparatus in which the defrosting control acts to defrost
a limited area of the space cooled or one section of a cooling means
in preference to another, e.g., defrosting controls for two zone refrigerators.
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| |||
153 | By storage compartment closure actuated means: | ||||
| This subclass is indented under subclass 151. Apparatus which responds to actuation of a storage compartment
closure, e.g., a door.
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154 | By energy input actuated means: |
| This subclass is indented under subclass 151. Apparatus responsive to operation of the power input means of a refrigeration producer, e.g., motor or compressor. | |
155 | Including time or program actuator: | ||
| This subclass is indented under subclass 151. Apparatus with a timing or programming device.
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| |||
156 | By temperature: |
| This subclass is indented under subclass 151. Apparatus including thermally responsive means. | |
157 | Time or program actuator: |
| This subclass is indented under subclass 132. Apparatus with a time or program actuator. | |
158 | Time delay of condition sensing or control operation: |
| This subclass is indented under subclass 157. Apparatus in which there is means delaying the normal operation of the automatic control. | |
159 | Selective heating or cooling: | ||
| This subclass is indented under subclass 132. Apparatus controlling, or responsive to, means selectively
heating or cooling.
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| |||
160 | Reversible cycle machine: |
| This subclass is indented under subclass 159. Apparatus comprising means to reverse flow through a refrigeration producing cycle so as to reverse the function of the heat absorbing or rejecting means of the cycle. | |
161 | With correlated manual or external operator and condition sensing means, e.g., cutoff or reset: | ||||
This subclass is indented under subclass 132. Apparatus so related to (1) manually operated means, or
(2) other means external of the refrigeration producer, as to modify
the manner of operation of the automatic control.
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162 | Manual initiate with sensor terminate: | ||
| This subclass is indented under subclass 161. Apparatus in which an operative control cycle is initiated
manually and is terminated automatically.
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163 | Selective: |
| This subclass is indented under subclass 161. Apparatus in which operation is under selective control, e.g., either by manual or automatic control. | |
164 | Manual reset or sensor operates additional element: |
| This subclass is indented under subclass 161. Apparatus in which a manual operator resets a condition sensing means and also sets or resets another control element. | |
165 | Solidified gas: | ||
| This subclass is indented under subclass 132. Apparatus controlling, or responsive to, means involving
the use of a solidified gas (CO2).
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| |||
166 | Diverse control or response: |
| This subclass is indented under subclass 165. Apparatus having different control or response means. | |
167 | Of heater, heat transmitter or secondary fluid: | ||
| This subclass is indented under subclass 165. Apparatus in which (1) a heater, or (2) means varying heat
transmission, is controlled.
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168 | By temperature: | ||
| This subclass is indented under subclass 165. Apparatus which is temperature responsive, e.g., venting
of the gas is thermostatically controlled.
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| |||
169 | Vacuumized chamber with open outlet: | ||||||||
This subclass is indented under subclass 132. Apparatus which controls, or is responsive to, means having
a chamber containing a liquid, or a wetted solid, e.g., lettuce.
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| |||||||||
170 | Evacuating means, e.g., jet pump: |
| This subclass is indented under subclass 169. Apparatus in which the sensing means controls, or responds to, the operation of the evacuating means. | |
171 | Gas-liquid contact cooler, fluid flow: | ||||||
| This subclass is indented under subclass 132. Apparatus controlling, or responding to, the flow of the
gas or liquid of a gas-liquid contacting cooler.
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172 | Air compessor, cooler and expander: | ||
| This subclass is indented under subclass 132. Apparatus controlling or responding to the operation of
an air compressor-cooler-expander type refrigerant producer.
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| |||
173 | Of external fluid reheating: | ||||||||
| This subclass is indented under subclass 132. Apparatus in which the means controlled utilizes some or
all of the heat of a heat rejecting portion of the same or another
refrigeration producer for reheating an external fluid which has
been cooled, e.g., air.
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174 | Trapping and discharging refrigerant batches : | ||||||||||
| This subclass is indented under subclass 132. Apparatus controlling, or responsive to, means trapping
and retaining a quantity of liquefied refrigerant and which trapping
means is actuated to intermittently discharge said refrigerant in
batches.
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175 | Diverse, cascade or compound refrigeration-producing system: | ||||
| This subclass is indented under subclass 132. Apparatus controlling, or responsive to (1) a refrigeration
producing system having diverse refrigeration producing means, (2)
a refrigeration producing system in which the same refrigerant flows
through two pairs of elements in circuits which are interconnected
for fluid flow between them, or (3) a refrigeration system having
circuits isolating the fluid in one from the other and having at
least two similar elements in each circuit.
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| |||||
176.1 | Humidity sensor: | ||||
| This subclass is indented under subclass 132. Apparatus which senses moisture in the air to be refrigerated.
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176.2 | Having defrost control related to humidity: | ||||
This subclass is indented under subclass 176.1. Apparatus in which the sensed humidity of the cooled space
exerts at least a partial control of some phase of a defrosting
operation.
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| |||||
176.3 | Controlling variable compressor capacity: | ||||||
| This subclass is indented under subclass 176.1. Apparatus in which the output of a compressor is varied
in response to the sensed humidity, e.g., unloading variable speed,
compressor staging, etc.
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176.4 | Controlling gas-liquid contactor for air: | ||
| This subclass is indented under subclass 176.1. Apparatus which there is an air-liquid contactor controlled
at least in part by an air humidity sensor, e.g., evaporative type
cooler.
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176.5 | Control of air heater, e.g., reheat pump: | ||||
| This subclass is indented under subclass 176.1. Apparatus in which there is provided a means to regulate
an air heater, e.g., reheat, to control the humidity in the ambient
air.
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| |||||
176.6 | Plus air temperature sensor exerting a control: | ||
| This subclass is indented under subclass 176.1. Apparatus in which an air temperature sensor acts in conjunction
with the air humidity sensor to exert a control; the air temperature
sensor could be alternative to or modifying the air humidity sensor.
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177 | Of external fluid or means: |
| This subclass is indented under subclass 132. Apparatus controlling a fluid other than a refrigerant, a cooled product or a product to be cooled. | |
178 | Diverse control or response: |
| This subclass is indented under subclass 177. Apparatus, (1) controlling a plurality of means, at least one handling a fluid or product, or (2) diverse function sensing means controlling an external fluid or means. | |
179 | Plural external fluids or means controlled: |
| This subclass is indented under subclass 178. Apparatus in which the plurality of controlled means are external of the refrigeration producer. | |
180 | External fluid and refrigeration producer: |
| This subclass is indented under subclass 178. Apparatus controlling fluid external of cooling means and a refrigeration producer or operative element thereof. | |
181 | Condenser cooling fluid flow: | ||
| This subclass is indented under subclass 180. Apparatus controlling flow of a condenser cooling fluid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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182 | Sequential: | ||
| This subclass is indented under subclass 180. Apparatus in which the controls are arranged so that they
operate in a determined sequence.
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| |||
183 | Cooling fluid for heat rejecter, e.g., condenser: | ||
| This subclass is indented under subclass 177. Apparatus controlling the fluid which cools a heat rejective
element of a refrigeration producer.
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| |||
184 | By refrigerant: |
| This subclass is indented under subclass 183. Apparatus responsive to a condition of a refrigerant within a refrigeration producer, e.g., temperature or pressure. | |
185 | Indirect heat transfer liquid, e.g., brine: | ||
| This subclass is indented under subclass 177. Apparatus responsive to, or controlling, flow of an indirect
heat transferring coolant, e.g., brine.
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186 | Air controller or director: | ||
| This subclass is indented under subclass 177. Apparatus controlling, or responsive to, means forcing,
directing or allowing flow of air.
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187 | Damper between storage compartments: |
| This subclass is indented under subclass 186. Apparatus in which the movement of an air circulation controlling damper between compartments is controlled. | |
188 | By lever, e.g., float-controlled valve: | ||
| This subclass is indented under subclass 177. Apparatus controlled by fluid level, e.g., a valve is controlled
by a float.
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189 | By fluid flow, e.g., check valve: | ||
| This subclass is indented under subclass 177. Apparatus responsive to, or controlling, the flow of the
external fluid, e.g., a check valve.
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190 | Refrigeration producer: | ||
| This subclass is indented under subclass 132. Apparatus responsive to or controlling, a refrigeration
producer.
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| |||
191 | Of or by jet-type compressor: | ||||
| This subclass is indented under subclass 190. Apparatus in which the sensing means controls or responds
to a closed type refrigeration producer employing a jet type compressor.
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192 | Lubrication: |
| This subclass is indented under subclass 190. Apparatus controlling, or responsive to, a condition of a lubricating means or the lubricant. | |
193 | Of or by compressor: |
| This subclass is indented under subclass 192. Apparatus in which the sensing means responds to or controls a refrigerant compressor. | |
194 | Lubricant aspirator in evaporator liquid level control chamber: | ||
| This subclass is indented under subclass 192. Apparatus in which there is a liquid chamber enclosing a
liquid level operated fluid flow controller, e.g., valve, which
chamber includes a refrigerant vapor outlet means and also means
to cause lubricant to be entrained with the vapor passing through
said outlet.
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| |||
195 | Impurity removal: |
| This subclass is indented under subclass 190. Apparatus controlling, or responsive to, means removing an undesired constituent, e.g., gas, from a refrigerant producer. | |
196.1 | Bypass, e.g., compressor unloading: | ||||||
| This subclass is indented under subclass 190. Apparatus controlling or responsive to, means allowing flow
around either a refrigerant condenser, evaporator, compressor or
a part of either, e.g., compressor unloading, or directing refrigerant
flow to either of two or more evaporators or condensers arranged
in parallel.
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| |||||||
196.2 | For plural compressor cylinders: | ||||
| This subclass is indented under subclass 196.1. Apparatus in which there is control of either a compressor
unit or system comprising more than one compression chamber, e.g.,
multistage, multicylinder, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
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196.3 | Direct bypass of compressor: | ||||
| This subclass is indented under subclass 196.1. Apparatus in which the gas discharged from the compressor
goes directly to the compressor suction, e.g., compressor unloading.
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196.4 | Condenser bypass: | ||
This subclass is indented under subclass 196.1. Apparatus in which refrigerant is caused to bypass part
or all of a condenser.
| |||
197 | Of expansion zone: | ||
| This subclass is indented under subclass 196. Apparatus in which the refrigerant fluid bypasses a restrictor,
evaporator or the suction line returning to a compressor.
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| |||
198 | Of serially arranged evaporator: |
| This subclass is indented under subclass 197. Apparatus in which evaporators are arranged for serial flow and the refrigerant fluid bypasses at least one of them. | |
199 | Through an evaporator, i.e., parallel: | ||||
| This subclass is indented under subclass 197. Apparatus in which the bypass for refrigerant fluid around
the evaporator is to another evaporator, i.e., the evaporators are
in parallel.
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| |||||
200 | Individual flow controllers and sensors: |
| This subclass is indented under subclass 199. Apparatus in which the control means acts to cause flow through one or more of a plurality of evaporators in a selected order so that refrigerant is caused to flow to at least one evaporator in preference to another. | |
201 | By external cooled liquid or holdover: | ||
| This subclass is indented under subclass 190. Apparatus responsive to a condition, usually temperature,
of an external liquid, e.g., withdrawable or heat transfer, (brine)
or of a holdover.
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| |||
202 | Including external thermal source modifying sensor action: | ||||
| This subclass is indented under subclass 190. Apparatus including thermal means not a part of the refrigeration
producer or the means cooled by it so related to a sensor that it
modifies its action.
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203 | Plural refrigerating producing elements and plural sensors |
| This subclass is indented under subclass 190. Apparatus comprising a refrigeration producing system having plural operative elements and plural condition sensing means each responding to or controlling at least two of said elements. | |
204 | Including expansion valve or variable restrictor: | ||
| This subclass is indented under subclass 203. Apparatus in which at least one of the operative elements
is an expansion or variable restrictor controlling the flow of the
refrigerant.
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205 | Plural variable restrictors in flow line: |
| This subclass is indented under subclass 204. Apparatus controlling a plurality of expansion valves or variable restrictors for a refrigerant. | |
206 | High and low side: |
| This subclass is indented under subclass 205. Apparatus in which both the high (expansion valve) and low side, (back pressure) restrictor or valve are controlled. | |
207 | Diverse function refrigeration elements controlled by single sensor: |
| This subclass is indented under subclass 190. Apparatus in which operative elements of a refrigeration producer having diverse functions are controlled by single sensing means. | |
208 | Single refrigeration producer controlled by plural sensors |
| This subclass is indented under subclass 190. Apparatus having plural sensing means which coact to control a single operative element of a refrigeration producer. | |
209 | Compensating or modifying: | ||||
| This subclass is indented under subclass 208. Apparatus in which the plural sensing means act together
to modify or compensate the action of one another.
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210 | Expansion valve or variable restrictor: | ||
| This subclass is indented under subclass 209. Apparatus controlling a variable refrigerant flow valve
or restrictor.
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211 | External condition sensor: |
| This subclass is indented under subclass 210. Apparatus in which at least one of the sensing elements responds to a condition external of the refrigeration producer. | |
212 | Plural sensors at low side |
| This subclass is indented under subclass 210. Apparatus in which the plural sensing elements each respond to a condition between expansion means and a suction source. | |
213 | Alternative or selective sensors: |
| This subclass is indented under subclass 208. Apparatus in which any one of the plurality of sensing means can alternatively or selectively control the element controlled. | |
214 | Single sensor mounted or formed to respond to plural conditions, e.g., compensators: | ||
| This subclass is indented under subclass 190. Apparatus in which a single sensing means is positioned
or formed so as to be responsive to plural conditions.
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215 | Controlling compressor or its drive, e.g., torque or speed: | ||
| This subclass is indented under subclass 214. Apparatus in which the sensing means controls an element
in the compressor or its drive, e.g., its torque or speed.
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216 | Of or by evaporation zone: |
| This subclass is indented under subclass 190. Apparatus controlling or responding to the condition of an element between or at the outlet of a liquefied refrigerant source, e.g., condenser or receiver, and to the means withdrawing a vapor, e.g., compressor. | |
217 | Back flow or pressure regulator: |
| This subclass is indented under subclass 216. Apparatus in which the fluid condition in the evaporator is regulated by a variable restrictor between the evaporator outlet and the inlet (suction side) of the compressor. | |
218 | Valve or restrictor by liquid lever: | ||
| This subclass is indented under subclass 216. Apparatus in which a valve or variable flow restrictor is
controlled by refrigerant liquid level.
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219 | Low side float: |
| This subclass is indented under subclass 218. Apparatus wherein there is a float which responds to a liquid level in a chamber in which the pressure is that between expansion means and a source of suction (compressor). | |
220 | Float chamber at suction line: |
| This subclass is indented under subclass 219. Apparatus in which the suction line opens directly into the float chamber. | |
221 | Valve isolated from float chamber: |
| This subclass is indented under subclass 220. Apparatus in which the flow controlling valve is in a chamber separated by an isolating partition from the chamber containing the float. | |
222 | Of expansion valve or variable restrictor: | ||||||
| This subclass is indented under subclass 216. Apparatus in which the device controlled is a valve or variable
restrictor of an expansion device.
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223 | By external condition: | ||
| This subclass is indented under subclass 222. Apparatus responsive to a condition external of the refrigeration
producing means.
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224 | By condition at low side: | ||||
| This subclass is indented under subclass 222. Apparatus responsive to a condition on the low side, i.e.,
between expansion means and a source of suction.
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225 | At or beyond evaporator outlet, i.e., superheat: |
| This subclass is indented under subclass 224. Apparatus in which the condition is the one prevailing at or beyond an evaporator outlet, i.e., the condition of the vapor after evaporation is complete. | |
226 | Compressor or its drive controlled: | ||
| This subclass is indented under subclass 216. Apparatus in which the compressor or its drive is controlled.
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227 | By conducted evaporator temperature: | ||
| This subclass is indented under subclass 226. Apparatus in which a temperature sensing means is in heat
conducting relationship to an evaporator.
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228.1 | Compressor or its drive controlled: | ||||||||||||||||
| This subclass is indented under subclass 190. Apparatus relating to a compressor or its drive.
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228.2 | For ice or ice cream maker: | ||
| This subclass is indented under subclass 228.1. Apparatus in which the controlled compressor provides the
refrigeration effect for a liquid under-going partial or full congelation.
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228.3 | By refrigerant pressure: | ||||
This subclass is indented under subclass 228.1. Apparatus in which the compressor is controlled by a sensed
condition of refrigerant pressure.
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228.4 | By variable speed motor or pulley type mechanism: | ||
| This subclass is indented under subclass 228.1. Apparatus in which movement of the compressor working member
is varied as a function of a sensed drive condition.
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228.5 | By variable compressor output (e.g., unloading, staging, etc.): | ||||||
| This subclass is indented under subclass 228.1. Apparatus in which the output of a single compressor or
the combined output of a plurality of compressors is varied as a
function of a sensed compressor operating condition, e.g., compressor
unloading, compressor staging.
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229 | By external cooled gas: |
| This subclass is indented under subclass 228. Apparatus responsive to a condition of an external cooled ambient gas. | |
230 | By condition of power source: | ||
| This subclass is indented under subclass 228. Apparatus responsive to a condition of the compressor power
source or drive.
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231 | TIME OR PROGRAM ACTUATOR: | ||||||||
| This subclass is indented under the class definition. Apparatus whereby (1) the time in which or length of time
taken to perform an operation is controlled, (2) there is either
a fixed continuous sequential or fixed repetitive operation of means
performing a treating operation, or (3) there is means terminating
a single operation in a fixed position to restart an additional
cycle, which cycle is more complex than a mere starting or stopping
of a single device.
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232 | Closed system sorbent type: | ||
| This subclass is indented under subclass 231. Apparatus relating to operation of a closed sorption type
refrigeration producer.
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233 | Congelation product maker: | ||||
| This subclass is indented under subclass 231. Apparatus relating to operation of congelation apparatus.
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234 | Defrosting: | ||
| This subclass is indented under subclass 231. Apparatus relating to a defrosting operation of a refrigeration
producer.
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235 | RINK: |
| This subclass is indented under the class definition. Apparatus designed for ice skating purposes. | |
235.1 | UTILIZING SOLAR ENERGY: | ||||||
| This subclass is indented under the class definition. Subject matter subjecting a material to the heat energy
of the sun.
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236 | WITH ALTERNATELY USABLE ENERGY SOURCES: | ||||||
| This subclass is indented under the class definition. Apparatus having two energy sources actuating a refrigeration
producer which sources are alternately usable.
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237 | SEPARABLE AMBULANT COOLED ENCLOSURE AND POWER OR COOLING SOURCE: | ||||||||
| This subclass is indented under the class definition. Apparatus comprising an ambulant enclosure, e.g., vehicle,
which is cooled by connecting or placing it into juxtaposition with a
cooling means or a power source for operating cooling means, e.g.,
for precooling of an enclosure.
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238.1 | DISPARATE APPARATUS UTILIZED AS HEAT SOURCE OR ABSORBER: | ||||||||||||||||||||||||||||||
This subclass is indented under the class definition. Apparatus in which (a) the heat of a disparate apparatus
as an energy source for a refrigeration producer, or (b) the rejected
heat of a refrigeration producer is used to heat a disparate apparatus.
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238.2 | With vortex tube, thermoelectric, stirling or air cycle: | ||||||||||
| This subclass is indented under subclass 238.1. Apparatus in which there is refrigeration produced by a
vortex tube, thermoelectric cycle, Stirling cycle or an air cycle.
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238.3 | With sorption: | ||||||||||
This subclass is indented under subclass 238.1. Apparatus wherein refrigeration is produced by utilizing
a sorbent for a refrigeration fluid.
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238.4 | With power vapor generator: | ||||||
| This subclass is indented under subclass 238.1. Apparatus wherein the energy for driving the refrigeration
system is derived at least in part by the making of vapor, e.g.,
Rankine cycle, jet pump.
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