This subclass covers also means for identifying or incapacitating burglars or the like.
This subclass does not cover:
the mere provision of an audible or visible signalling device on measuring or switching apparatus;
alarm arrangements for indicating that a specific variable has exceeded, or fallen below, a predetermined value, which are covered by the relevant subclasses of class Fulltext... Hierarchy... Expanded...G01 for the measurement of that variable.
alarms for specific processes or types of machines or apparatus, which are covered by the relevant subclasses for the processes, machines, or apparatus.
In this subclass, the following term is used with the meaning indicated:
"arrangements" may cover also devices peculiar thereto.
G08B 1/00
Arrangements for signalling characterised solely by the form of transmission of the signal
G08B 1/02
·
using only mechanical transmission
G08B 1/04
·
using hydraulic transmission; using pneumatic transmission
Signalling arrangements providing both audible and visible indication (combinations of display arrangements with audible advertising Fulltext... Hierarchy... Expanded...G09F 27/00); Personal calling arrangements providing both audible and visible indication
G08B 7/02
·
using mechanical transmission
G08B 7/04
·
using hydraulic transmission; using pneumatic transmission
G08B 7/06
·
using electric transmission
G08B 7/08
·
using explosives
G08B 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 Fulltext... Hierarchy... Expanded...E21F 17/18)
G08B 9/02
·
Details
G08B 9/04
· ·
Means for recording operation of the apparatus
G08B 9/06
· ·
Means for indicating disagreement between orders given and those carried out
by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
G08B 13/10
· ·
by pressure on floors, floor coverings, stair treads, counters, or tills
G08B 13/12
· ·
by the breaking or disturbance of stretched cords or wires
G08B 13/14
· ·
by lifting or attempted removal of hand-portable articles
G08B 13/16
·
Actuation by interference with mechanical vibrations in air or other fluid
G08B 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
G08B 13/20
·
Actuation by change of fluid pressure
G08B 13/22
·
Electrical actuation
G08B 13/24
· ·
by interference with electromagnetic field distribution
G08B 13/26
· ·
by proximity of an intruder causing variation in capacitance or inductance of a circuit
G08B 15/00
Identifying, scaring, or incapacitating burglars, thieves, or intruders, e.g. by explosives (burglar traps, or the like, on safes Fulltext... Hierarchy... Expanded...E05G 5/02)
G08B 15/02
·
with smoke, gas, or coloured or odorous powder or liquid