(under subclass 665) Waterbeds or associated devices in which the liquid within the bladder has more tendency to hold together as it flows (i.e., thicker) or more gel-like than water, for example.
(1) Note. The viscous liquid within the bladder may be water to which a viscosity increasing chemical additive has been added or it may be a non-aqueous, flowable, high viscosity composition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
655.5, for liquid or gel containing body support.
909, for flowable, viscous (e.g., gel) material containing.
