Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent
1994-05-11
1996-06-25
Taylor, Dennis L.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Flow control
404 4, 405118, E02B 500
Patent
active
055294367
ABSTRACT:
An improved trench drain or so-called channel drain system is disclosed which provides a universal drainage unit, preferably formed of injection molded plastic in a standard length, for installation in concrete floors, airport areas, driveways, service station aprons, EPA-mandated on-site collection and disposal areas, and the like. The trench drain unit terminates at one end in a female end and at the other end in a male end. Such drain ends can respectively receive male and female end caps, whereby the drain operates as a single unit drain, or instead can receive the molded interlocking male and female ends of an adjacent trench drain unit, whereby a connected series drain system is created. The mating interlocking male and female ends so encapsulate one another as to create a substantially watertight connection. Drain openings covered by knock-out membranes, with downwardly-extending pipe flange connectors, are located proximal each respective end of the universal drain unit. The flange connectors facilitate connection to commercially available plastic drainpipes and connector components. When a trench drain unit is transversely sawn, i.e., field cut, to a desired terminal length, then essentially regardless where cut, it provides a female end capable of receiving a standard male end cap. Upstanding lugs formed on grate support ledges of the upper respective channel walls are received in slotted openings of the associated grate member. This cooperative engagement prevents any unwanted lateral expansion, i.e., spreading, of the channel side walls. The present trench drain unit, which is preferably installed flush with the floor, drains to a buried supplemental pipe having a suitable pitch. An alternate male end cap, i.e., a male end cap drain, is disclosed as having an opening encompassed by a pipe connector flange for permitting end-draining, that is draining out the terminal end of a trench drain unit when the particular installation application so requires.
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Taylor Dennis L.
Tuf-Tite, Inc.
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