.~ Endless belt strand or chain-like member to lift viscous fluid
DEFINITION
Classification: 198/643
(under subclass 618) Apparatus comprising an endless member (i.e., chainlike, smooth or braided cored-like strand or belt) which is driven over sheaves or pulleys so that at least a portion of said endless member dips into the fluid to be lifted and lifts said fluid by mere cohesion of said liquid to said member, and means whereby the fluid may be removed from said member at the desired elevation.
(1) Note. These devices are sometimes called "pumps", perhaps on the basis that they move a viscous fluid from one elevation to another. However, any development of kinetic energy is not a factor. The function of these devices is merely to move a viscous fluid from one place to another.
(2) Note. The fluid may be removed from the member by passing said member around a pulley.
SEE OR SEARCH CLASS
415, Rotary Kinetic Fluid Motors or Pumps,
90, for rotary pumps or motors having a bladeless surface wherein transfer of energy between the runner and the fluid which it contacts is the result of friction in the area of contact of said runner and said fluid.
416, Fluid Reaction Surfaces (i.e., Impellers), 4, for rotatable skin friction type fluid engaging impellers or rotors.
