|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

|  | F01 - F04 |
Subsection index
MACHINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F04C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F04B
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
ENGINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F03C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F03C
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
PUMPS |
positive displacement |
rotary or oscillating piston | F04C
reciprocating piston or other | F04B
non-positive displacement | F04D

ENGINEERING IN GENERAL

|  | F15 |
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL

|  | F15B |
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR (motors, turbines, compressors, blowers, pumps Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F01-F04; fluid dynamics Fulltext... Hierarchy... Expanded...F15D; fluid clutches or brakes Fulltext... Hierarchy... Expanded...F16D; fluid springs Fulltext... Hierarchy... Expanded...F16F; fluid gearing Fulltext... Hierarchy... Expanded...F16H; pistons, cylinders, packing Fulltext... Hierarchy... Expanded...F16J; valves, taps, cocks, actuating-floats Fulltext... Hierarchy... Expanded...F16K; safety valves with auxiliary fluid operation of the main valve Fulltext... Hierarchy... Expanded...F16K 17/04; fluid-operating means for valves Fulltext... Hierarchy... Expanded...F16K 31/12; pipes, pipe joints Fulltext... Hierarchy... Expanded...F16L; lubricating Fulltext... Hierarchy... Expanded...F16N)

|  | F15B |
Note(s) In this subclass, the following terms are used with the meanings indicated: "telemotor" means a system or device in which a substantially constant amount of fluid is trapped between an input member and an output member to act as a fluid link; "servomotor" means a fluid-pressure actuator, e.g. a piston and cylinder, directly controlled by a valve or other device which is responsive to operation of an initial controlling member; "Servomotor" does not cover a telemotor. The initial controlling member may be adjacent to the servomotor or at a distance, and may be, for example, a hand lever.

|  | F15B |
Subclass index
SUPPLYING FLUID UNDER PRESSURE | 1/00
INTENSIFIERS OR FLUID-PRESSURE CONVERTERS; TRANSDUCERS | 3/00; 5/00
FLUID-PRESSURE ACTUATOR SYSTEMS |
Telemotors or systems related to the output of a pump | 7/00
Servomotors | 9/00, 11/00, 13/00
Devices for displacing a member | 15/00
Combinations of telemotors and servomotors; other systems; details | 17/00; 18/00; 21/00
TESTING; SAFETY | 19/00; 20/00

P:100 |  | F15B 1/00 |
Installations or systems with accumulators; Supply reservoir or sump assemblies

P:80 |  | F15B 3/00 |
Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids

P:70 |  | F15B 5/00 |
Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities (Fulltext... Hierarchy... Expanded...F15B 9/00 takes precedence; for measuring or controlling Fulltext... Hierarchy... Expanded...G01, Fulltext... Hierarchy... Expanded...G05)

|  | F15B 7/00 - F15B 21/00 |
Fluid-pressure actuator systems

|  | F15B 7/00 - F15B 21/00 |
Note(s) Groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F15B 7/00-F15B 21/00 cover systems in which members are moved into one or more definite positions by means of fluid pressure. Pump, motor, and control features so far as not peculiar to this purpose are classified in the relevant classes.

P:60 |  | F15B 7/00 |
Fluid-pressure actuator systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors

P:40 |  | F15B 9/00 |
Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member

P:50 |  | F15B 11/00 |
Servomotor systems without provision for follow-up action (Fulltext... Hierarchy... Expanded...F15B 3/00 takes precedence)

P:110 |  | F15B 13/00 |
Details of servomotor systems (Fulltext... Hierarchy... Expanded...F15B 15/00 takes precedence)

P:90 |  | F15B 15/00 |
Fluid-actuated devices for displacing a member from one position to another (motors for continuous movement Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F01-F03); Gearing associated therewith

P:20 |  | F15B 17/00 |
Combinations of telemotor and servomotor systems

P:30 |  | F15B 18/00 |
Parallel arrangements of independent servomotor systems

P:10 |  | F15B 19/00 |
Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere

P:0 |  | F15B 20/00 |
Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems

P:120 |  | F15B 21/00 |
Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass