"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 7293658 | Drum filter assembly A drum filter assembly comprising a hollow drum filter having a longitudinal axis and an outer filter screen or mesh material, the drum filter being supported on external rollers for rotation about its longitudinal axis and an inlet for introducing liquid to be filt... | 11/13/2007 |
| 4538765 | Method for defiberizing waste paper in a thick stock range Waste paper is defiberized within a container or receptacle in a thick stock range at a low water level. Thereafter, by further infeeding water, the obtained slurry or the like is diluted to a consistency of less than 7% while continuing the defiberizing ... | 09/03/1985 |
| 4356942 | Internal frame rucksack The invention provides an internal frame rucksack in which the frame comprises at least two longitudinal frame members of substantially rigid material located in spaced-apart relationship within the rear wall of the sack, the frame members extending subst... | 11/02/1982 |
| 4320002 | Filter device A cleaning filter has a cylindrical tank through which an axial pipe extends, the pipe having a screw blade attached thereon and being rotatable in the tank. A drum rotatably carried on the axial pipe is disposed within the tank and around the screw blade... | 03/16/1982 |
| 4298473 | Drum filter apparatus A filter for removing solids from a liquid of the type wherein a rotatable basket or drum has media inside straining from inside out. A power operated conveyor is mounted in the drum above the axis of rotation for receiving and positively removing solids.... | 11/03/1981 |
| 4267035 | Pressurized rotary screening apparatus A rotary screening apparatus is provided for separating impurities in suspensions such as paper pulp or other slurries. The apparatus has a pressurized housing with a cylindrical screenplate separating the housing into an outer annular accepts chamber and... | 05/12/1981 |
| 4215447 | Process and apparatus for washing fibre stock in the de-inking of paper A process and apparatus for washing high consistency fibre stock in the de-inking of paper. Grey stock is passed along a passage from a grey stock inlet to an outlet for cleaned stock. The passage is defined by a filter screen preferably of wire gauze. Wi... | 08/05/1980 |
| 4204959 | Apparatus for the treatment and composting of biological waste A first thermally insulated hollow cylinder is mounted for rotation about its longitudinal axis and a second hollow cylinder is mounted within the first cylinder for conjoint rotation therewith. The ends of the cylinders are closed to define a first annul... | 05/27/1980 |
| 4162978 | Separator A stationary chamber having a perforated peripheral wall contains an axial rotor having rubber-like radial carrier blades which, as the rotor rotates, are indented at their outer edges by guide means having helical turns extending along said peripheral wa... | 07/31/1979 |