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Publication numberUS1972496 A
Publication typeGrant
Publication dateSep 4, 1934
Filing dateApr 6, 1931
Priority dateJun 7, 1930
Publication numberUS 1972496 A, US 1972496A, US-A-1972496, US1972496 A, US1972496A
InventorsAugust Schlimbach
Original AssigneeMaschf Augsburg Nuernberg Ag
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Irrigating and draining device
US 1972496 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)


fnven tor- A/zhng; L,


of Germany Germany; a corporation Application April 6, 1931, Serial No. 527,995

In Germany June 7, 1930 '1 Claim. 01. 103-2) This invention relates to an irrigating and draining device, the particular object of which is to convey the water in directions which lie practically counter to one another, for instance from the left to the right and reversely. The pipes connecting the device with the places that are to pipes e and k. If, however, the direction of conveyance is the reverse of that assumed, the valves ,f' and it will be closed and the valves ,1 and 9' will be opened when the path of the water will be k h g' a c f and c. It will be obvious that the conditions are not changed if the water basin be irrigated or to be drained maybe the samemis on the right and the pipe is on the left, or if The device consists of a. helical centrifugal pump, there are two pipes like It, the one onthe right the casing of which is provided with a double deand the other on the left, or if there are two water livery sweep-Tand preferably also with a double "basins, the one on the left and the other on suction sweep-T, and between these Ts and the pipes with which they are connected are inserted slide-valves, by. means ofwhich the direction of the water is determined. If a double sweep-T is provided only at the delivery end of the pump casing, then the suction end of the same is connected with a pipe extending, for instance, down into a water-space serving as pump sump, and pipes conducting the water into this space are equipped with slide-valves, sluices or 'the like.

If a tract of land is alternately to be irrigated and drained, the water-conducting pipe may be connected with the delivery end, as well as with the suction end of the pump casing, the pipes extending forth from the two pump casing ends jointing one another and being thus both connected with said first-mentioned pipe.

In every case it is easily possible to convey the water from one place to another place, and vice I versa, irrespective of the levels ofthe water on the two places being, perhaps, more or less different.

The invention is illustrative diagrammatically and by way of example on the accompanying drawing on which is shown a vertical section through an irrigating and drainage device designed according to this invention. a denotes the helical centrifugal pump, the casing of which is provided with a double delivery sweep-T c and with a double suction sweep- T g. The pump is operated by the electromotor b. and f are slide-valves inserted between the T c and the pipes e and e, and and i are slide-valves inserted between the T g and the pipes h and h.

' In the constructional form shown by. way of example the pipes e and h join one another and c are both connected with the pipe is through which the water can be conveyed to, as well as away from, the respective field or the like, and the/pipes e and h communicate with a water basin 1.

Supposing, the water is to be conveyed from the left to the right, the valves f and i willbe the right, just according to the circumstances of the individual cases. Moreover, it is apparent that by a proper manipulation of the valves 1, i an equalization in the level of liquid between distant places may be effected. Furthermore, in the case of a pond and a stream for example, or in any other instance where water at diiferent places is normally at different levels which may, however, change, as, for example, in the case of a rise in the stream level due to rain, it is apparent that the present apparatus may be used either as a simple overflow conduit to conduct water from the stream to the pond, or vicefversa, or as a pumping apparatus either to fill the pond from the stream or to drain thepond into the stream, or vice-versa, in the event a low water condition exists in either the stream or the pond.

I claim:

A pumping apparatus in which a single pump is utilized to pump a fluid back and forth between two different points, comprising a pump having an inlet and an outlet, a plurality of separate independent inlet conduits directly connected with the inlet of the pump and leading in diiferent directions therefrom to separately located points, a plurality of separate independent outlet conduits directly" connected with the outlet'of the pump and leading in different directions therefrom to separately located points, some of said inlet and outlet conduits leading in the same direction being united at. a certain distance awayfrom said pump to form a single conduit, and a valve being provided in each conduit individual thereto whereby the flow of the fluid may be directed through any inlet conduit to any outlet conduit.


closed when thewa or will be withdrawn from c the basin-Z through th" pipe h and will'be forced to the righthand field or the-like through the A

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2512420 *Dec 23, 1946Jun 20, 1950Ellerkamp Harry MReversible irrigation pump
US4404988 *Dec 16, 1981Sep 20, 1983Chicago Bridge & Iron CompanyPressure seated closure for containment drain
US4693271 *Oct 21, 1985Sep 15, 1987Hargrove Benjamin FHorizontally mounted submersible pump assembly
U.S. Classification137/565.26, 137/599.1
International ClassificationF04D29/50, F04D29/46
Cooperative ClassificationF04D29/506
European ClassificationF04D29/50P