Apparatus for measuring by volume and delivering fluids or fluent solid materials, not provided for in the preceding groups
15
/
00
Details of, or accessories for, apparatus of the preceding groups insofar as such details or appliances are not adapted to particular types of such apparatus
15
/
02
•
Compensating or correcting for variations in pressure, density, or temperature
15
/
04
•
•
of gases to be measured
15
/
06
•
Indicating or recording devices, e.g. for remote indication
15
/
07
•
Integration to give total flow, e.g. using mechanically-operated integrating mechanism [2]
15
/
075
•
•
using electrically-operated integrating means [2]
15
/
08
•
Air or gas separators in combination with liquid meters; Liquid separators in combination with gas-meters
15
/
10
•
Preventing damage by freezing or excess pressure or insufficient pressure
15
/
12
•
Cleaning arrangements; Filters (filters in general B 01 D)
15
/
14
•
Casings, e.g. of special material
15
/
16
•
Diaphragms; Bellows; Mountings therefor
15
/
18
•
Supports or connecting means for meters
Measuring volume
17
/
00
Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies (measuring linear dimensions to determine volume G 01 B)
19
/
00
Calibrated capacity measures for fluids or fluent solid material, e.g. measuring cups
22
/
00
Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for [5]
22
/
02
•
involving measurement of pressure [5]
Level indicators
23
/
00
Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm (in wells E 21 B 47/04; adaptation to, or mounting on, steam boilers F 22 B 37/78; level regulation G 05 D; alarm devices G 08 B)
23
/
02
•
by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid
23
/
04
•
by dip members, e.g. dip-sticks
23
/
14
•
by measurement of pressure (measuring pressure in general G 01 L)
23
/
16
•
•
Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid
23
/
18
•
•
Indicating, recording, or alarm devices actuated electrically
23
/
20
•
by measurement of weight, e.g. to determine the level of stored liquefied gas (weighing in general
G 01 G)
23
/
22
•
by measurement of physical variables, other than linear dimensions, pressure, or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water (involving the use of floats G 01 F 23/30)
23
/
24
•
•
by measuring variations of resistance of resistors due to contact with conductor fluid
23
/
26
•
•
by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
23
/
28
•
•
by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material [6]
23
/
284
•
•
•
Electromagnetic waves [6]
23
/
288
•
•
•
•
X-rays; Gamma rays [6]
23
/
292
•
•
•
•
Light [6]
23
/
296
•
•
•
Acoustic waves [6]
23
/
30
•
by floats (switches operated by floats H 01 H 35/18) [4]
23
/
32
•
•
using rotatable arms or other pivotable transmission elements [4]
23
/
34
•
•
•
using mechanically actuated indicating means [4]
23
/
36
•
•
•
using electrically actuated indicating means [4]
23
/
38
•
•
•
using magnetically actuated indicating means [4]
23
/
40
•
•
using bands or wires as transmission elements [4]
23
/
42
•
•
•
using mechanically actuated indicating means [4]
23
/
44
•
•
•
using electrically actuated indicating means [4]
23
/
46
•
•
•
using magnetically actuated indicating means [4]
23
/
48
•
•
using twisted spindles as transmission elements [4]
23
/
50
•
•
•
using mechanically actuated indicating means [4]
23
/
52
•
•
•
using electrically actuated indicating means [4]
23
/
54
•
•
•
using magnetically actuated indicating means [4]
23
/
56
•
•
using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements [4]
23
/
58
•
•
•
using mechanically actuated indicating means [4]
23
/
60
•
•
•
using electrically actuated indicating means [4]
23
/
62
•
•
•
using magnetically actuated indicating means [4]
23
/
64
•
•
of the free float type [4]
23
/
66
•
•
•
using mechanically actuated indicating means [4]
23
/
68
•
•
•
using electrically actuated indicating means [4]
23
/
70
•
•
•
•
for sensing changes in level only at discrete points [4]
23
/
72
•
•
•
using magnetically actuated indicating means [4]
23
/
74
•
•
•
•
for sensing changes in level only at discrete points [4]
23
/
76
•
•
characterised by the construction of the float [4]
25
/
00
Testing or calibrating of apparatus for measuring volume, volume flow, or liquid level, or for metering by volume
