.~ Longitudinal or transverse tubular cavity or cell
DEFINITION
Classification: 428/188
(under subclass 98) Product wherein the web or sheet has one or more elongated hollow spaces of substantially uniform cross-section located between and lying with their axes substantially parallel to, the nonthickness surfaces* of the web or sheet and being either open or closed at their ends.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72+, for a sheet including a cover or casing and in which there are elements* which cooperate to form cells*.
116+, for a honeycomb-like web or sheet wherein the cavities or cells are arranged with their axes at an angle to the nonthickness surface of the structure.
166, for a product including a component of varying thickness with interlaminar spaces.
178, for cells* formed by one or more nonplanar components.
181, for tubular cavities* formed by two components, at least one of which has parallel folds. 184+, for a similar structure wherein the cavities* or cells* are formed by a wave-form component cooperating with another component.
304+, for a composite web or sheet including a cellular component in which the cell* do not lie longitudinally or transversely of the web or sheet.
338, for a single layer product including structurally defined cells* which do not lie longitudinally or transversely of the nonthickness surface*.
357+, for a mass including structurally defined cells* of any shape.
SEE OR SEARCH CLASS
138, Pipes and Tubular Conduits, appropriate subclass for a tubular product of specific structure as provided for therein and see the definition of this Class 428, section VI B, reference to Class 138.
