| IPC 7 English version |
| G08-G08B01712 |
G08B 19/00 - G08B 31/00  |
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| SECTION G – PHYSICS |
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| G 08 | SIGNALLING (indicating or display devices per se G09F; transmission of pictures H04N) |
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| G 08 B | SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS (signalling arrangements on vehicles B60Q, B62D 41/00; railway signalling systems or devices B61L; on cycles B62J 3/00, B62J 6/00; safes or strong-rooms with alarm devices E05G; signalling or alarm devices in mines E21F 17/18; sensitive measuring elements, see the appropriate subclasses of G01; traffic control systems G08G; visual indicating means G09; sound-producing devices G10; radio or near-field calling systems H04B 5/00, H04B 7/00; selecting arrangements H04Q 7/00, H04Q 9/00; loudspeakers, microphones, gramohpone pick-ups or like acoustic electromechanical transducers H04R) |
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| Notes |
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| (1) | This subclass covers also means for identifying or incapacitating burglars or the like. |
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| (2) | This subclass does not cover: |
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| – | the mere provision of an audible or visible signalling device on measuring or switching apparatus; |
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| – | alarm systems for indicating that a specific variable has exceeded, or fallen below, a predetermined value, which are covered by the relevant subclasses of class G01 for the measurement of that variable. |
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| – | alarms for specific processes or types of machines or apparatus, which are covered by the relevant subclasses for the processes, machines, or apparatus. |
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| (3) | In this subclass, the following term is used with the meaning indicated: |
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| – | "systems" may cover also devices peculiar thereto. |
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| Subclass Index |
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| SIGNALLING OR CALLING SYSTEMS |
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| Characterised by the transmission of the signal |
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| Characterised by the nature of the indication: audible; visible; tactile; combined |
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| ORDER TELEGRAPHS |
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| ALARM SYSTEMS |
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| Responsive to an unspecified condition |
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| Responsive to two or more different conditions |
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| Responsive to one specified condition: intrusion; fire; other |
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| With transmission from or to a central station |
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| Predictive alarm systems |
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| CHECKING, MONITORING |
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1/ | 00 | Systems for signalling characterised solely by the form of transmission of the signal |
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1/ | 02 | . | using only mechanical transmission |
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1/ | 04 | . | using hydraulic transmission; using pneumatic transmission |
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1/ | 06 | . | . | hydraulic only |
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1/ | 08 | . | using electric transmission |
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3/ | 00 | Audible signalling systems; Audible personal calling systems (audible indication of time signals G04B 21/00, G04C 21/00) |
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3/ | 02 | . | using only mechanical transmission |
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3/ | 06 | . | using hydraulic transmission; using pneumatic transmission |
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3/ | 10 | . | using electric transmission; using electromagnetic transmission |
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3/ | 14 | . | using explosives |
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5/ | 00 | Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied (display of time signals G04B 19/00, G04C 17/00, G04C 19/00, G04G 9/00; for display of alphanumeric information G09F; flags, banners G09F) |
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5/ | 02 | . | using only mechanical transmission |
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5/ | 06 | . | using hydraulic transmission; using pneumatic transmission |
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5/ | 14 | . | . | with indicator element moving about a pivot, e.g. hinged flap, rotating vane |
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5/ | 16 | . | . | . | with reset means necessitating a separate operation to return the indicator element |
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5/ | 18 | . | . | with indicator element moving rectilinearly |
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5/ | 20 | . | . | . | with reset means necessitating a separate operation to return the indicator element |
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5/ | 22 | . | using electric transmission; using electromagnetic transmission |
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5/ | 24 | . | . | with indicator element moving about a pivot, e.g. hinged flap, rotating vane |
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5/ | 26 | . | . | . | with reset means necessitating a separate operation to return the indicator element |
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5/ | 28 | . | . | . | with hinged flap or arm |
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5/ | 30 | . | . | . | with rotating or oscillating members, e.g. vanes |
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5/ | 32 | . | . | with indicator element moving rectilinearly |
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5/ | 34 | . | . | . | with reset means necessitating a separate operation to return the indicator element |
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5/ | 36 | . | . | using visible light sources |
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5/ | 38 | . | . | . | using flashing light |
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5/ | 40 | . | using smoke, fire, or coloured gases (sky-writing G09F 21/16) |
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6/ | 00 | Tactile signalling systems, e.g. personal calling systems (indication of time by feeling G04B 25/02; deaf-aid sets H04R 25/00) [6] |
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7/ | 00 | Signalling systems according to more than one of groups G08B 3/00 to G08B 6/00 (combinations of display arrangements with audible advertising G09F 27/00); Personal calling systems according to more than one of groups G08B 3/00 to G08B 6/00 |
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7/ | 02 | . | using mechanical transmission |
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7/ | 04 | . | using hydraulic transmission; using pneumatic transmission |
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7/ | 06 | . | using electric transmission |
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7/ | 08 | . | using explosives |
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9/ | 00 | Order telegraph apparatus, i.e. means for transmitting one of a finite number of different orders at the discretion of the user, e.g. bridge to engine room orders in ships (signalling devices in mines E21F 17/18) |
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9/ | 02 | . | Details |
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9/ | 04 | . | . | Means for recording operation of the apparatus |
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9/ | 06 | . | . | Means for indicating disagreement between orders given and those carried out |
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9/ | 08 | . | mechanical |
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9/ | 10 | . | . | using ratchet |
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9/ | 12 | . | . | using rotary shaft |
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9/ | 14 | . | hydraulic; pneumatic |
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9/ | 16 | . | . | using ratchet |
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9/ | 18 | . | . | by varying displacement of the fluid |
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9/ | 20 | . | . | by varying pressure of the fluid |
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13/ | 00 | Burglar, theft, or intruder alarms (vehicle theft alarms B60R 25/10; cycle theft alarms B62H 5/00) |
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13/ | 02 | . | Mechanical actuation |
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13/ | 04 | . | . | by breaking of glass |
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13/ | 06 | . | . | by tampering with fastening (alarm locks E05B 45/00; alarm devices on safes E05G 1/10) |
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13/ | 08 | . | . | by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind |
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13/ | 10 | . | . | by pressure on floors, floor coverings, stair treads, counters, or tills |
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13/ | 12 | . | . | by the breaking or disturbance of stretched cords or wires |
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13/ | 14 | . | . | by lifting or attempted removal of hand-portable articles |
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13/ | 16 | . | Actuation by interference with mechanical vibrations in air or other fluid |
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13/ | 18 | . | Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength |
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13/ | 181 | . | . | using active radiation detection systems [5] |
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13/ | 183 | . | . | . | by interruption of a radiation beam or barrier (light barriers G01V 8/10) [5] |
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13/ | 184 | . | . | . | . | using radiation reflectors [5] |
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13/ | 186 | . | . | . | . | using light guides, e.g. optical fibres [5] |
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13/ | 187 | . | . | . | by interference of a radiation field [5] |
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13/ | 189 | . | . | using passive radiation detection systems [5] |
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13/ | 19 | . | . | . | using infra-red-radiation detection systems [5] |
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13/ | 191 | . | . | . | . | using pyroelectric sensor means [5] |
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13/ | 193 | . | . | . | . | using focusing means [5] |
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13/ | 194 | . | . | . | using image scanning and comparing systems [5] |
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13/ | 196 | . | . | . | . | using television cameras [5] |
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13/ | 20 | . | Actuation by change of fluid pressure |
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13/ | 22 | . | Electrical actuation |
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13/ | 24 | . | . | by interference with electromagnetic field distribution |
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13/ | 26 | . | . | by proximity of an intruder causing variation in capacitance or inductance of a circuit |
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15/ | 00 | Identifying, scaring, or incapacitating burglars, thieves, or intruders, e.g. by explosives (burglar traps, or the like, on safes E05G 5/02) |
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15/ | 02 | . | with smoke, gas, or coloured or odorous powder or liquid |
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17/ | 00 | Fire alarms; Alarms responsive to explosion (temperature-responsive elements G01K) |
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17/ | 02 | . | Mechanical actuation of the alarm, e.g. by the breaking of a wire |
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17/ | 04 | . | Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure |
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17/ | 06 | . | Electric actuation of the alarm, e.g. using a thermally-operated switch (thermally-operated electric switches per se H01H 37/00) |
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17/ | 08 | . | Actuation involving the use of explosive means |
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17/ | 10 | . | Actuation by presence of smoke or gases |
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17/ | 103 | . | . | using a light emitting and receiving device [5] |
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17/ | 107 | . | . | . | for detecting light-scattering due to smoke [5] |
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17/ | 11 | . | . | using an ionisation chamber for detecting smoke or gas (vacuum gauges making use of ionisation effects G01L 21/30; gas analysis by investigating the ionisation G01N 27/62) [5] |
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17/ | 113 | . | . | . | Constructional details (discharge tubes for measuring pressure of introduced gas, or for detecting presence of gas, in general H01J 41/02) [5] |
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17/ | 117 | . | . | by using a detection device for specific gases, e.g. combustion products, produced by the fire (G08B 17/103, G08B 17/11 take precedence; investigating or analysing gases in general G01N, e.g. by using electric means G01N 27/00) [5] |
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17/ | 12 | . | Actuation by presence of radiation or particles, e.g. of infra-red radiation, of ions |
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 | G08B 19/00 - G08B 31/00 |
