|7077271||Secondary screen for concrete pump|
An apparatus for the removal of objects and other debris from cement that is pumped via a concrete pump includes a secondary screen that is pivotally attached at one end thereof to a concrete pump a predetermined distance above a grate that is disposed over a hopper...
|5032254||Litter box cleaning apparatus and method therefor|
A litter cleaning apparatus that has a large new litter receptacle, a waste receptacle and a cleaned and reclaimed litter receptacle. Brand new, or recycled, litter is introduced into the new litter receptacle and is opened at the bottom to release litter...
|4956101||Liquid filtration device and method using wave motion|
A method and an apparatus for separating bodies from a liquid in which the liquid is passed through a filter and the bodies to be separated are accumulated on the filter. The filter forms an upper bounding limit of a space therebeneath which is alternatel...