Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway
Patent
1992-10-26
1993-11-23
Reese, Randolph A.
Hydraulic and earth engineering
Drainage or irrigation
Porous or apertured pipe, flume, or tileway
405 36, 521695, 52792, 428137, 428120, E02B 1100, E02D 1900, E02D 3100
Patent
active
052637921
ABSTRACT:
This invention provides an improved rollable subterranean drainage core device which has T-shaped finned projections to which may be adhered a water-penetrable soil filtration fabric. The fin structure provides impact resistance and high compressive strength while providing high water channel flow-through capabilities. An exemplary method for fabricating the drainage device involves extruding a unitary finned polymeric core sheet having T-shaped projection members on at least one major side thereof, and then removing a portion of the fins in a cross direction at periodic intervals along the machine direction, so that individual T-shaped projection members are spaced in rows and columns on the rollable core sheet. The drainage core member is particularly suitable for use in conjunction with waterproofing membranes.
REFERENCES:
patent: 1746409 (1930-02-01), Sweetland et al.
patent: 3263819 (1966-08-01), Schmidt et al.
patent: 3323310 (1967-06-01), Arpin
patent: 3507010 (1970-04-01), Doleman et al.
patent: 3533896 (1970-10-01), Hartig
patent: 3561177 (1971-02-01), Agro et al.
patent: 3563038 (1971-02-01), Healy et al.
patent: 3573142 (1971-03-01), Chidgey et al.
patent: 3654765 (1972-04-01), Healy et al.
patent: 3765783 (1973-10-01), Wager
patent: 3965686 (1976-06-01), Saito et al.
patent: 4057500 (1977-11-01), Wager
patent: 4102720 (1978-07-01), Kaneko et al.
patent: 4182581 (1980-01-01), Uehara et al.
patent: 4425980 (1984-01-01), Miles
patent: 4563380 (1986-01-01), Black et al.
patent: 4572700 (1986-02-01), Mantarro et al.
patent: 4574541 (1986-03-01), Raidt et al.
patent: 4704048 (1987-11-01), Ahlgrimm
patent: 4840515 (1989-06-01), Freese
patent: 4943185 (1990-07-01), McGuckin et al.
Bartlett Keith R.
Davis Everett R.
Baker William L.
Leon Craig K.
Olsen Arlen L.
Reese Randolph A.
W. R. Grace & Co.,-Conn.
LandOfFree
Finned subterranean drainage device and method for fabricating t does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Finned subterranean drainage device and method for fabricating t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Finned subterranean drainage device and method for fabricating t will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1843436