(under the class definition) Dispensing devices specially designed to dispense flowable materials in the form of drops.
(1) Note. The majority of the devices disclosed for this purpose were structurally and functionally more closely related to other devices and have been placed in preceding subclasses on the basis of the combination involved, means employed and mode of operation. This and the indented subclasses take only the residual patents specially designed to dispense material in the form of drops not having the features above provided for. Some of the preceding subclasses having such subject matter are referred to below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
206+, for resilient wall devices.
386+, for those having followers.
SEE OR SEARCH CLASS 119, Animal Husbandry,
72.5, for drop delivering watering devices.
138, Pipes and Tubular Conduits,
40+, for flow restrictors in pipes and tubular conduits.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means,
23+, for drop formers having pistons or other discharge assistants which are removable from the supply container for discharge.
239, Fluid Sprinkling, Spraying, and Diffusing,
38, 40+, 46, and 51 for slow diffusers with drop-by-drop escape of the liquid.
431, Combustion,
330, for a fuel burner in which the fuel is fed to the combustion area in the form of drops or as a flowing film.
