发明授权
US08936721B2 Unitary filter tank and an underdrain for filtering a body of water 有权
单一的过滤罐和用于过滤水体的暗渠

Unitary filter tank and an underdrain for filtering a body of water
摘要:
Exemplary embodiments include a unitary pool filter tank and/or an underdrain for a pool filter unit. Embodiments of the unitary pool filter tank can have an integrally formed housing and base. The filter tank can be formed using a blow molding process in which the base of the filter tank is reinforced using multiple polymer layers that have been folded and/or pinched together. Embodiments of the underdrain can be formed by interlocking top and bottom components. The top and bottom components can be interlocked by inter-component locking structures.
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