Processes involving only a single technical art, e.g. drying, coating, for which provision exists elsewhere are classified in the relevant class for that art.
In this subclass, the following term is used with the meaning indicated:
"adjustable" means mechanically adjustable. [2]
Variable resistors, the value of which is changed non-mechanically, e.g. by voltage or temperature, are classified in group Fulltext... Hierarchy... Expanded...H01C 7/00. [2]
In this subclass, inductances and transformers are regarded as being "for power supply" if they are intended for this purpose even in systems operating at frequencies above 60 cycles/sec.
CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, OR LIGHT-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric Fulltext... Hierarchy... Expanded...H01B 3/00)
This subclass does not cover bases, casings, or covers accommodating two or more switching devices, or a switching device as well as another electric component, e.g. bus-bar, line connector, which are covered by Fulltext... Hierarchy... Expanded...H02B 1/08.
In this subclass, the following terms or expressions are used with the meanings indicated:
"relay" means a switching device having contacts which are operated from electric inputs which supply, directly or indirectly, all the mechanical energy necessary to cause both the closure and the opening of the contacts;
"driving mechanism" refers to the means by which an operating force applied to the switch is transmitted to the moving contact or contacts;
"operating" is used in a broader sense than "actuating" which is reserved for those parts not touched by hand to effect switching;
"acting" or "action" means a self-induced movements of parts at one stage of the switching. These connotations apply to all parts of the verbs "to operate"; "to actuate", and "to act", and to words derived therefrom, e.g. to "actuation".
In this subclass, details are classified as follows:
details of an unspecified type of switching device, or stated to be applicable to two or more kinds of switching devices designated by the terms or expressions "switches", "relays", "selector switches", and "emergency protective devices", are classified in groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...H01H 1/00-H01H 9/00;
mechanical structural details of control members of switches or of keyboards such as keys, push-buttons, levers or other mechanisms for transferring the force to the activated elements are classified in this subclass, even when they are used for controlling electronic switches.
This subclass covers only devices for producing, influencing, or using a flow of electrons or ions, e.g. for controlling, indicating, or switching of electric current, counting electric pulses, producing light or other electromagnetic oscillations, such as X-rays, or for separating or analysing radiation or particles, and having a closed or substantially closed casing containing a chosen gas, vapour, or vacuum, upon the pressure and nature of which the characteristics of the device depend. Light sources using a combination (other than covered by group Fulltext... Hierarchy... Expanded...H01J 61/96 of this subclass) of discharge and other kinds of light generation are covered by group Fulltext... Hierarchy... Expanded...H05B 35/00.
In this subclass, the following term is used with the meaning indicated:
"lamp" includes tubes emitting ultra-violet or infra-red light.
Attention is drawn to the definition of the expression "spark gaps" given in the Note following the title of subclass Fulltext... Hierarchy... Expanded...H01T.
Apparatus or processes specially adapted for the manufacture of electric discharge tubes, discharge lamps, or parts thereof are classified in group Fulltext... Hierarchy... Expanded...H01J 9/00.
electric solid state devices which are not covered by any other subclass and details thereof, and includes: semiconductor devices adapted for rectifying, amplifying, oscillating or switching; semiconductor devices sensitive to radiation; electric solid state devices using thermoelectric, superconductive, piezo-electric, electrostrictive, magnetostrictive, galvano-magnetic or bulk negative resistance effects and integrated circuit devices; [2]
photoresistors, magnetic field dependent resistors, field effect resistors, capacitors with potential-jump barrier, resistors with potential-jump barrier or surface barrier, incoherent light emitting diodes and thin-film or thick-film circuits; [2]
processes and apparatus adapted for the manufacture or treatment of such devices, except where such processes relate to single-step processes for which provision exists elsewhere. [2]
In this subclass, the following terms or expressions are used with the meanings indicated:
"solid state body" means the body of material within which, or at the surface of which, the physical effects characteristic of the device occur. In thermoelectric devices, it includes all materials in the current path.
Regions in or on the body of the device (other than the solid state body itself), which exert an influence on the solid state body electrically, are considered to be "electrodes" whether or not an external electrical connection is made thereto. An electrode may include several portions and the term includes metallic regions which exert influence on the solid state body through an insulating region (e.g. capacitive coupling) and inductive coupling arrangements to the body. The dielectric region in a capacitive arrangement is regarded as part of the electrode. In arrangements including several portions, only those portions which exert an influence on the solid state body by virtue of their shape, size, or disposition or the material of which they are formed are considered to be part of the electrode. The other portions are considered to be "arrangements for conducting electric current to or from the solid state body" or "interconnections between solid state components formed in or on a common substrate", i.e. leads; [2]
"device" means an electric circuit element; where an electric circuit element is one of a plurality of elements formed in or on a common substrate it is referred to as a "component"; [2]
"complete device" is a device in its fully assembled state which may or may not require further treatment, e.g. electroforming, before it is ready for use but which does not require the addition of further structural units; [2]
"parts" includes all structural units which are included in a complete device; [2]
"container" is an enclosure forming part of the complete device and is essentially a solid construction in which the body of the device is placed, or which is formed around the body without forming an intimate layer thereon. An enclosure which consists of one or more layers formed on the body and in intimate contact therewith is referred to as an "encapsulation"; [2]
"integrated circuit" is a device where all components, e.g. diodes, resistors, are built up on a common substrate and form the device including interconnections between the components; [2]
"assembly" of a device is the building up of the device from its component constructional units and includes the provision of fillings in containers. [2]
In this subclass, the following expression is used with the meaning indicated:
"waveguide type" as applied to transmission lines includes only high-frequency coaxial cables or Lecher lines, and as applied to resonators, delay lines, or other devices includes all devices having distributed inductance and capacitance.
in addition to the primary active radiating elements,
secondary devices for absorbing or for modifying the direction or polarisation of waves radiated from aerials, and
combinations with auxiliary devices such as earthing switches, lead-in devices, and lightning protectors;
both transmitting and receiving aerials. [3]
This subclass does not cover devices of the waveguide type, such as resonators or lines, not designed as radiating elements, which are covered by subclass Fulltext... Hierarchy... Expanded...H01P.
In this subclass, the following expression is used with the meaning indicated:
"active radiating element" covers corresponding parts of a receiving aerial. [3]
all kinds of contact-making disconnectible and non-disconnectible electric line connectors, coupling devices, lamp or similar holders or current collectors for all kinds of electric lines, cables or apparatus;
non-printed means for electric connections to or between printed circuits.
This subclass does not cover mounting of connections in or on specified apparatus. Such mounting is covered by the relevant subclass for such apparatus, e.g. mounting in junction or distribution boxes is covered by subclass Fulltext... Hierarchy... Expanded...H02B or G, high-temperature connections for heating elements is covered by group Fulltext... Hierarchy... Expanded...H05B 3/08. Structural association of one part of a two-part coupling device with specific electric apparatus is classified with the apparatus, e.g. association of cap with incandescent lamp is covered by subclass Fulltext... Hierarchy... Expanded...H01K.
In this subclass, a contact in a coupling device is only regarded as an additional earth contact if this contact is clearly designed for that purpose.
In this subclass, the following expression is used with the meaning indicated:
"spark gaps" means enclosed or non-enclosed discharge device having cold electrodes and used exclusively to discharge a quantity of electrical energy in a small time duration.