Many industries worldwide use chemicals to perform a wide variety of tasks. In fact, chemical consumers range from a typical homekeeper who purchases basic cleaning supplies to multi-national energy p

Recently, heat pump were watched with keen interest since they are useful to save energy because they can recover much energy from lower heat sources using small amounts of energy. In this case both m

Many industries worldwide use chemicals to perform a wide variety of tasks. In fact, chemical consumers range from a typical homekeeper who purchases basic cleaning supplies to multi-national energy p

The instant invention relates to relatively low volume chemical injection pumps, and more particularly relates, in one embodiment, to low volume chemical injection pumps for use in subsea applications

Heretofore, rotary pumps of the gyratory piston type have consisted of a relatively solid and substantially cylindrical piston which gyrates around the axis of a pump chamber having a slightly larger

A pump of this invention includes an upper drive section connecting with a lower pumping section. These sections are spaced apart by a diaphragm so as to maintain the integrity of each section. A hous

A pump particularly adapted to produce a pressurized fluid flow has an upper drive section attached to and separated from a lower pumping section by a diaphragm. The diaphragm maintains the integrity

According to the invention, there is provided a pair of separable elements which jointly define a rather small pumping cavity, one of the elements being compressible to reduce the size of the pumping