.~ Having fluid-retaining bladder removable from within enclosing cover or casing (e.g., football, etc.)
DEFINITION
Classification: 473/603
Having fluid-retaining bladder removable from within enclosing cover or casing (e.g., football, etc.):
(under subclass 569) Subject matter wherein the projectile comprises a flexible and distensible fluid-retaining bag, sack, etc. (e.g., a balloon, etc.) removably retained within a shape-defining and size-limiting enclosing envelope.
(1) Note. The outer envelope (i.e., the cover or casing) may itself be flexible and somewhat distensible, but if it is, it must be much less freely distensible than the bladder, whereby when fluid is introduced into the bladder, it can expand to contact the inside of the envelope and then is restrained against further significant distension by the envelope.
(2) Note. The bladder and envelope are usually unattached to each other, although they may be attached (as by a detachable adhesive) in such a way as to not impair removability of the bladder from the envelope.
