(under the class definition) Systems comprising means for confining flowable material during its flow or making it available for flow and either causing or controlling its flow or potential flow, which means is (1) a combination of material containing or confining means, such as tanks or conduits, in flow relation with flow causing means, such as pumps, (2) combinations of two or more material confining devices in flow relation, including branched flow lines and hydrostatic devices, such as standpipes or vertically adjustable outlet and overflow conduits in open communication with the confined body of flowable material; and (3) combinations of material confining devices with flow controlling means when more of the material confining device is claimed than is necessary to mount the flow controlling means.
(1) Note. Flow controlling means comprise valves with or without actuating means, closures for flow passages, flow restrictors, baffles and guides.
(2) Note. Passages which divert material from the flow system for the purpose of actuating or controlling a pump or valve or similar part which is solely concerned with the mechanics of handling the main flow of the material are not considered flow confining means.
(3) Note. This subclass provides for flow dividers of the nonautomatic nonvalved, nonaccumulating type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
115.01+, and 118.01+, for self controlled branching systems having plural outflows. See (3) Note. 262, for flow dividing by passage through or overflow from plural compartments. See (3) Note.
597, 599+ and 608, for flow dividing with combining or with valved passages. See (3) Note.
631+, for cyclically actuated valves. Lines With Other Classes and Within This Class, (2) Plural Valves, and Subclass References to the Current Class, for search notes on plural nonautomatic valves.
SEE OR SEARCH CLASS
73, Measuring and Testing,
863+, for a sampling system which obtains a predetermined portion of a mass of material to be tested.
222, Dispensing, appropriate subclasses, for subject matter which comprises distribution systems as defined above, but
which has in most instances particular application to the problems of vending or handling fluent solids.
251, Valves and Valve Actuation,
12+, for valve actuators which divert and use a part of the material being handled in the system to actuate or retard valves controlling the fluid flow in such systems. See (2) Note, above.
399, Electrophotography,
237+, for liquid developer applied to a latent image within an electrophotos:graphic device.
