|  | 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

|  | F16 |
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

|  | F16S |
CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL

|  | F16S |
Note(s) This subclass does not cover similar elements and structures, restricted to use in the building art, which are covered by subclass Fulltext... Hierarchy... Expanded...E04C.

P:0 |  | F16S 1/00 |
Sheets, panels, or other members of similar proportions; Constructions comprising assemblies of such members (built-up gratings Fulltext... Hierarchy... Expanded...F16S 3/00; layered products Fulltext... Hierarchy... Expanded...B32B)

|  | F16S 1/00 |
Note(s) In this group, the members may be generally flat or curved, but they may depart from such shape in detail over part or all of their area, e.g. they may be corrugated, ribbed, flanged; ribs, flanges, or the like may be separately formed.

P:10 |  | F16S 3/00 |
Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles (gratings or grilles formed from a sheet or the like Fulltext... Hierarchy... Expanded...F16S 1/00; frames for doors, windows or the like Fulltext... Hierarchy... Expanded...E06B 1/00, Fulltext... Hierarchy... Expanded...E06B 3/00)

P:20 |  | F16S 5/00 |
Other constructional members not restricted to an application fully provided for in a single class