Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7651001 | Fluid separator An apparatus separates a first fluid from a mixture of fluids. The apparatus includes a housing that can have one or more entry openings and one or more exit openings. An endless flexible strip of a material having an affinity for the first fluid is arranged to be a... | 01/26/2010 |
| 7469790 | Oil extracting apparatus An oil extracting apparatus includes a rigid oil adhering ring having a horizontally disposed ring axis and an oil adhering surface surrounding the ring axis, a driving device coupled to the oil adhering ring for driving rotation of the oil adhering ring about the r... | 12/30/2008 |
| 7431166 | Fluid separator An apparatus for separating a first fluid from a mixture of fluids in a container, the first fluid being substantially immiscible with respect to one or more other fluids in the mixture comprises an endless strip of material having an affinity for the first fluid, a... | 10/07/2008 |
| 7410569 | Filtration system for metalworking fluids A filtration system for metalworking fluids has panel filter elements arranged in cells in which the filter frames and panels are approximately parallel to one another. The filter frames are disposed such that the filter surfaces are oriented at an acute angle with ... | 08/12/2008 |
| 7381335 | Method and arrangement for continuous filtering of particles out of a liquid Method and arrangement for continuous filtering of particles out of a contaminated liquid by means of a number of separate filtering units (14) in order continuously to feed purified liquid to a consumer. Each filtering unit (14) comprises a rotatable,... | 06/03/2008 |
| 7334689 | Overflow launder An overflow launder for a separation cell where particles are fluidiZEd and rise to the top of the cell, has a primary trough (1) surrounding the rim of the cell (2), and an array of secondary troughs (4) extending across the fluid surface from ... | 02/26/2008 |
| 7296694 | Tower-type grease removal apparatus for commercial grease trap assemblies A grease skimming and removal apparatus for use with grease trap settling tank apparatus provides a vertically elongated, vertically extending tower housing on the top wall of a grease trap tank and provides a power driven, vertically elongated, vertically extending... | 11/20/2007 |
| 7243803 | Recovery apparatus having buckets for scooping up floating matter A recovery apparatus comprising a running member which runs between a first position where the member is immersed in the liquid stored in a reserve tank and a second position where the member projects upwards from a surface level of the liquid, and a bucket which is... | 07/17/2007 |
| 7232036 | Waste collection system for separating liquid waste from solid waste According to one aspect of the invention, there is provided a waste collection system for separating liquid waste from solid waste which includes a conveyor having an upper conveyor roller, a lower conveyor roller and an endless conveyor belt extending around the co... | 06/19/2007 |
| 7153419 | Liquid treating device A liquid treating device without any restrictions for a sludge discharge device set above a liquid tank is provided. A cyclone separator adapted to swirl liquid to subject sludge to centrifugal separation from the liquid and precipitate the sludge is connected to th... | 12/26/2006 |
| 7104407 | Fluid separator An apparatus for separating a first fluid from a mixture of fluids in a container, the first fluid being substantially immiscible with respect to one or more other fluids in the mixture comprises an endless strip of material having an affinity for the first fluid, a... | 09/12/2006 |
| 7093722 | Polishing composition storage container The invention provides devices and methods for removing and trapping large and/or dense abrasive particles from a polishing slurry. The polishing slurry is introduced into a container and allowed to stagnate, thereby causing large and/or dense particles to separate ... | 08/22/2006 |
| 7070042 | Blade pulley A bladed pulley including a plurality of blades extending from a first end to a second end. The bladed pulley having spaced apart blades and an open, central volume configuration to permit conveyed material to fall through the pulley. The bladed pulley further havin... | 07/04/2006 |
| 7049377 | 1,3-diethers and components and catalysts for the polymerization of olefins, containing said diethers Cyclopolyenic 1,3-diethers wherein the carbon atom in position 2 belongs to a particular cyclic or polycyclic structure containing two or three unsaturations, solid catalyst components and catalysts therefrom, the catalysts comprising the reaction product of: ... | 05/23/2006 |
| 7022640 | 1,3-diethers and components and catalysts for the polymerization of olefins, containing said diethers Cyclopolyenic 1,3-diethers wherein the carbon atom in position 2 belongs to a particular cyclic or polycyclic structure containing two or three unsaturations, solid catalyst components and catalysts therefrom, the catalysts comprising the reaction product of: ... | 04/04/2006 |
| 7001512 | Closed loop processing system for waste and crops A process for treating waste products discharged in a waste water from an animal operation, such as a swine confinement facility includes a holding tank for receiving waste water from the flushing of the facility in which solids to accumulate at the bottom thereof; ... | 02/21/2006 |
| 6962659 | Contaminant skimming device An oil skimmer for removing oil floating on surfaces of bodies of water. The oil skimmer includes a support frame, respective drive pulley and guide pulleys rotatably mounted to the support frame on respective shafts, and a drive train which rotatively drives the dr... | 11/08/2005 |
| 6960294 | Apparatus for the separation of solids from liquids by dissolved gas floatation The present invention relates to methods and apparatus for separation of solids from liquids and separation of liquids from liquids (such as oil from water) by dissolved gas floatation. A dissolved gas floatation clarifier is described as is a liquid-gas mixer, a li... | 11/01/2005 |
| 6942090 | Blade pulley A bladed pulley including a plurality of blades extending from a first end to a second end. The bladed pulley having spaced apart blades and an open, central volume configuration to permit conveyed material to fall through the pulley. The bladed pulley further havin... | 09/13/2005 |
| 6935488 | Blade pulley A bladed pulley including a plurality of blades extending from a first end to a second end. The bladed pulley having spaced apart blades and an open, central volume configuration to permit conveyed material to fall through the pulley. The bladed pulley further havin... | 08/30/2005 |
| 6887387 | Oil and chip skimmer A skimmer for removing oil and paramagnetic chips from a contaminated body of machine tool coolant. The skimmer includes a frame and an endless tube partially trained within the frame that defines a travel path. The path of the tube includes a first section within t... | 05/03/2005 |
| 6868974 | Sedimentation filtration installation For increasing the capacity of a continuously operating sedimentation filtration device, the processing liquid to be cleaned is supplied before or adjacent to the filter body on opposed sides into the sedimentation container. Underneath the filter body, a comparativ... | 03/22/2005 |
| 6685830 | Process and device for separation of absorbent/floating material from product mixes by means of float/sink separation Device and process for separation of absorbent/floating material from product mixes by means of float/sink separation with a float/sink separator which exhibits a separator tank filled with a liquid separating medium, in which context there are provided d... | 02/03/2004 |
| 6676833 | Apparatus for removing grit and grease from water A grit-and-grease removal system includes a grit channel for degritting water by promoting settling of grit to the bottom of the channel, the grit being removed from the bottom of the channel by a traveling bridge-type grit removal device supporting a sub... | 01/13/2004 |
| 6571959 | Coolant fluid cleaning method and apparatus An improved coolant cleaning method, system, and apparatus, are provided through the use of a filter disk assembly that defines and is rotatable about an axis of rotation of the disk, for removing particulate matter from a fluid flowing through the filter... | 06/03/2003 |
| 6551516 | Methods for removing grit and grease from water A grit-and-grease removal system includes a grit channel for degritting water by promoting settling of grit to the bottom of the channel, the grit being removed from the bottom of the channel by a traveling bridge-type grit removal device supporting a sub... | 04/22/2003 |
| 6511597 | Chip discharge conveyor system A chip discharge conveyor system includes a partition plate disposed below a discharge run of a circulating endless hinged belt in confronted relation to the discharge belt run along the length thereof. Outer cleats are attached to an outer circumferentia... | 01/28/2003 |
| 6365045 | Apparatus for use in a sewage treatment plant An apparatus for use in a sewage treatment plant comprises a settlement tank, an inlet channel for delivering an input sewage flow to the settlement tank, and a screen arrangement having a continuous belt screen for capturing screenings contained within t... | 04/02/2002 |
| 6338795 | Purifying system A second purifying apparatus 2 for furthermore purifying working solution purified by a first purifying apparatus 1 is disposed downstream of the first purifying apparatus 1. A working-solution introducing pipe 42 which is capable of diffusing and dischar... | 01/15/2002 |
| 6328888 | Skimmer A skimmer for operating in a water environment provides a conveyor with transverse apertures and a sloping upwardly travelling lower flight in a trough shaped guide, for a lower extent and, over an upper extent beyond said guide and designed to move mater... | 12/11/2001 |
| 6305555 | Wear shoe for sludge collector A wear shoe for mounting to a flight of a sludge collector. The wear shoe snaps into a surface of the flight at a desired location and is held in place with no additional fasteners or hardware. The wear shoe is able to be utilized with any channel-type fl... | 10/23/2001 |
| 6279752 | Wide rectangular clarifiers A waste water treatment system for removing sludge from within a rectangular clarifying tank having a plurality of sludge collector flights attached to a pair of parallel chains for collecting sludge and scum within the waste water. Each of the collector ... | 08/28/2001 |
| 6260716 | Scum sweeper for surface floating matters in a clarifying tank A scum sweeper for sweeping surface floating matters in a clarifying tank to a collector channel. A sweeping blade is pivotally hanged by arms to parallel endless running chains mounted onto a supporting frame installed in the tank at an above position wi... | 07/17/2001 |
| 6220455 | Scraper Bar Arrangement Scraper bar arrangement to be used particularly in connection with a liquid handling reservoir, such as a clarification basin or like, which comprises one or several scraper bars (1) being placed one after another in the longitudinal direction (5), transf... | 04/24/2001 |
| 6216881 | Hinged cover for use in a clarifier tank having an inboard launder channel configuration A cover apparatus for inhibiting the growth of algae on the fluid-contacting surfaces of an inboard launder channel disposed to receive a water flow from a central and from a peripheral region of a water treatment tank and for capturing noxious gases. Cov... | 04/17/2001 |
| 6190570 | Method of removing, collecting, and treating substances floating on water surface and apparatus for removing, collecting, and treating the substances In floating substance removing, collecting and treating method and apparatus capable of securely separating and collecting floating substances floating on a water surface without adversely affecting an ecological system regardless of the type and state of... | 02/20/2001 |
| 6136191 | Elevating solids separator and drive connection therefor Disclosed is a separator that extracts solids from a manure slurry. The separator includes a powered rotating drive cylinder, a plurality of fins radially extending from the drive cylinder, and a flexible conveyor belt driven by the drive cylinder. The co... | 10/24/2000 |
| 6126019 | Sewage collector flight A collector flight for use in a sewage settling or sedimentation tank includes an elongated, generally C-shaped, one-piece, extruded aluminum body defined by top and bottom, hollow, rectangular heads connected together at one corner by a planar web. Slots... | 10/03/2000 |
| 6099743 | Method and basin for sedimentation of sludge in waste water A method and a basin serve the purpose of sedimenting sludge in waste water, which in a flow is supplied to the basin via an inlet and in clarified condition is removed via an outlet placed opposite to the inlet. In the inlet there has been built in resis... | 08/08/2000 |
| 5992642 | Filtering apparatus and filtering system A filtering apparatus and filtering system where a hinge belt 10 of a hinge-belt type filtering apparatus 100 is continuously rotated by driving of a drive motor 65 such that hinge scrapers are rotated along a bottom plate 6b of the hinge filtering appara... | 11/30/1999 |