Taper-wall riser with tab connectors

A plastic article useful as a riser assembly for a septic tank or as part of another structure is comprised of a multiplicity of identical shape conical wall plastic risers. The risers are attached to each other at joints by tabs which engage rim segments; each end of the riser has alternating tabs...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Holbrook Paul R, Trude Gregory
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A plastic article useful as a riser assembly for a septic tank or as part of another structure is comprised of a multiplicity of identical shape conical wall plastic risers. The risers are attached to each other at joints by tabs which engage rim segments; each end of the riser has alternating tabs and rim segments. A riser assembly wall undulates in the lengthwise direction. The risers nest within each other for shipment or storage.