In many pump applications, such as in irrigation pumps, there is a trend toward the use of diesel engines to drive the pump shaft. In order to operate efficiently from a fuel conservation standpoint,

In either case, upon each operation of the pump to draw chemical liquid from the "clear side" of the reservoir such liquid will be replaced by liquid drawn through the filter screen from the "soil sid

A centrifugal pump, particularly useful in the chemical industry for pumping corrosive and toxic fluids, has all parts which are exposed to the fluids being pumped completely isolated from the pump dr

There are numerous problems in pumping small amounts of liquid with conventional piston or diaphragm pumps. This is usually accomplished by the prior art pumps by using either a small diameter piston

A vertical turbine pump comprises an assembly including a rotatable pump shaft, an impeller, and an impeller bowl. The assembly is removably mounted in a fluid flow diverter that directs fluid at a ri

A self-contained device for pumping supersonic gas flows. The pumping dev consists of a chemically activated material capable of chemical reaction with the gas mixture to be pumped, thermal ballast ma

Chemical injection pumps are used to introduce small, measured quantities of a chemical additive into a primary fluid flow line for admixture with the primary fluid, such chemicals including demulsifi

During this period of energy shortage, chemical means are commonly used to increase the flow of hydrocarbons from a production well. Such chemicals are normally pumped down a well to reduce the resist