...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7431851 | Fat separator The present invention provides a fat separator device having a container with a spout portion and a cover portion releasably attached to the container. The cover portion including a surface having at least one aperture to allow for passage of a liquid through the co... | 10/07/2008 |
| 7273548 | Fluid filter A fluid filter, which is adapted for separating a less dense fluid floating on a high dense fluid, includes at least a fluid filtering arrangement including a floating wing adapted for floating on the less dense fluid and at least a fluid outlet formed on the floati... | 09/25/2007 |
| 7247498 | Device to alternately supply a fluid to an analyzer Apparatus and methods for supplying a portion of a fluid stream and, alternately, a fluid of known composition and concentration to an analyzer are provided. The fluid stream is directed through a series of connected chambers formed in an integral housing. A samplin... | 07/24/2007 |
| 7185766 | Skimmer A skimmer device and a method for skimming a liquid, foam, fat or other solid or liquid material or anything else that a user wants to remove or separate from a remaining liquid or solid that is left in a container. ... | 03/06/2007 |
| 7077273 | Blood component separator disk A separator disk (4) for use in centrifugal separation of components is designed to automatically position itself during separation at the interface between the supernatant and the remaining components. Preferably the interface is between plasma and red blood... | 07/18/2006 |
| 6869531 | Fluid filter A fluid filter, which is adapted for separating a less dense fluid floating on a high dense fluid, includes at least a fluid filtering arrangement including a floating wing adapted for floating on the less dense fluid and at least a fluid outlet formed on the floati... | 03/22/2005 |
| 6803022 | Device and method for separating components of a fluid sample A device and method for separating heavier and lighter fractions of a fluid sample. The device includes a plurality of constituents comprising a container and a composite element in the container. The composite element is a separator comprising a deformable bellows,... | 10/12/2004 |
| 6749089 | Reversing trap container closure The present invention relates to a closure for a container which provides for, among other things, an internal drainage system. Preferably, the closure is molded as a single integral unit that includes a base, cap and hinge arrangement joining the base and the cap a... | 06/15/2004 |
| 6689279 | Device for separating and dispensing high viscosity fluid from low viscosity fluids A device used in separating flowing substances and can be placed inside the top of a dispenser. The device separates high viscosity liquid from a low viscosity liquid. The device is comprised of a smooth conical funnel piece inverted into the dispenser co... | 02/10/2004 |
| 6180006 | Clarification and solid waste containment system and process A new apparatus and method for the removal of waste material including solid wastes from a fluid is provided. The apparatus and method employ a unique combination of processes that result in extended periods of use between cleanings of the apparatus.... | 01/30/2001 |
| 5971163 | Portable sealable recovery container A portable sealable recovery container having a sealed interior space, a first inlet on a first top surface, a second inlet on a second top surface which functions as a top when the container is rotated to make the first top surface a side surface, a disc... | 10/26/1999 |
| 5868946 | Gasoline container Water and solid debris are separated from gasoline during its storage within a container. The separation is effected automatically, at low cost and in a highly reliable manner. It is continuous throughout storage and is not reversed by portage of the cont... | 02/09/1999 |
| 5853600 | Axial spin blood separation system and method A method for rapid separation of serum or plasma from cells in a whole blood sample uses a cylindrical sample tube having longitudinally-extending internal ribs. A separation gel and the sample are introduced into the tube, and the tube is axially centrif... | 12/29/1998 |
| 5736033 | Separator float for blood collection tubes with water swellable material A separator has a generally cylindrical body and a water swellable material fitted around at least a portion of the generally cylindrical body or on the surface of a passage through the body. Upon being exposed to water the water swellable material swells... | 04/07/1998 |
| 5701810 | Tofu making apparatus The apparatus of the invention comprises three stages. The first stage extracts soy milk from soybean go, and comprises a cylindrical pot, a cylindrical filter for receiving go held within the pot, there being an annular gap between the filter and the pot... | 12/30/1997 |
| 5667963 | Anticoagulant solution for use in blood chemistry-related techniques and apparatus An anticoagulant solution of sodium citrate for use in blood chemistry-related techniques and apparatus is disclosed. The anticoagulant solution should include an effective concentration of sodium citrate sufficient for preventing the coagulation of a sam... | 09/16/1997 |
| 5647272 | Bucket extractor device An extractor device for extracting, filtering, measuring, and containing a subsurface portion of liquid soup, which having less fat content mixed than a surface area, from a soup pot in a single dipping application; comprising: A cylinder, container body ... | 07/15/1997 |
| 5591643 | Simplified inlet channels The present invention provides centrifugal rotors for delivering a liquid, typically a biological sample such as diluted plasma, to an unvented chamber in the rotor through an unmodified inlet channel. The unvented chamber is typically a cuvette comprisin... | 01/07/1997 |
| 5584238 | Fat/stock separator A fat/stock separator comprising a colander, a transparent hopper vessel with a trap, a support base and a flow valve mounted to and connected through the wall of the hopper vessel to the trap for draining fluid from the hopper vessel. The colander in a p... | 12/17/1996 |
| 5560830 | Separator float and tubular body for blood collection and separation and method of use thereof A separator float has a generally cylindrical body and a water swellable band having a selected outer diameter fitted circumferentially around a portion of the generally cylindrical body. The water swellable band is made of a water swellable material so t... | 10/01/1996 |
| 5510028 | Device for separating liquids A device for separating liquids has a side wall enclosing an interior space. A bottom is connected to the side wall adjacent a lower edge of the side wall and has an aperture formed therein at a position above the lower edge. The bottom extends upwardly a... | 04/23/1996 |
| 5489386 | Density gradient medium for the separation of cells A density gradient medium for the isolation and enrichment of rare cells, including fetal nucleated erythrocytes from a peripheral blood sample is described. The medium comprises a colloidal density gradient medium dispersed in a meltable gel. In one aspe... | 02/06/1996 |
| 5470489 | Method and inlet device for charging shallow grit chambers or settling tanks A method and apparatus for charging either a a shallow grit tank or a settling tank with waste water by means of a horizontal feed line and a horizontal drain line using the Coanda Effect. The waste water is pressured through a gap which directs the waste... | 11/28/1995 |
| 5417854 | Apparatus for separating solids from fluids A novel apparatus for isolating solids or wetcakes from fluids is disclosed. Said apparatus is closed to the atmosphere and comprises a slip joint and a floating auger which allows for solid recovery under pressure in the absence of substantial solvent vo... | 05/23/1995 |
| 5403053 | Can opening and liquid expelling apparatus A device for detaching the top of the can and draining the fluid contained therein. In the first embodiment, an upper and lower handle are adjustable in relation to one another to account for different can sizes. A conventional can opener is attached to a... | 04/04/1995 |
| 5382362 | Paint solvent recycle device A solvent recycle device for containing a volatile solvent with particulate material suspended therein having a density greater than such solvent and enabling the particulate material to gravationally separate from the solvent into a confined lower space ... | 01/17/1995 |
| 5356638 | Method and apparatus for dehydration of yogurt during transportation and storage A method and apparatus is provided for producing yogurt in a small container and in a manner by which the formed yogurt may have undesirable serum drained therefrom to dehydrate the yogurt prior to consumption thereof, all through the use of a single cont... | 10/18/1994 |
| 5301605 | Curd ripening apparatus The curd ripening apparatus comprises two perforated, semicylindrical baskets (12, 30), rotatably supported on a common horizontal axis, one within the other. Curds are poured into the inside basket, and the outside basket is then rotated of 180° with re... | 04/12/1994 |
| 5297476 | Health guard fat skimmer A fat skimmer for separating an unwanted fat liquid from a wanted liquid is provided which consists of a transparent cone shaped jug for storing the unwanted fat liquid and the wanted liquid that is to be separated. The jug has a tapered exhaust conduit f... | 03/29/1994 |
| 5266199 | Serum separating apparatus This invention relates to an apparatus used in a centrifugal separating step for sample preparation in the field of clinical chemistry. Especially, the invention relates to a separating apparatus used for isolating a serum fraction from a freshly isolated... | 11/30/1993 |
| 5186844 | Apparatus and method for continuous centrifugal blood cell separation An analytical rotor for separating cellular components from a biological fluid includes a separation chamber spaced radially outward from a sample chamber. The sample chamber may be an open receptacle disposed to receive sample or may be a mixing chamber ... | 02/16/1993 |
| 5151184 | Fluid collecting and dispensing system An apparatus and method for automatically aliquotting liquids, such as blood serum, is described. The invention provides a completely automatic, clean, self-contained system for collecting and aliquotting liquids and simultaneously cleaning the aliquottin... | 09/29/1992 |
| 5141645 | Apparatus for separation of blood components A method for the separation of blood into the components and apparatus thereof, characterized by subjecting the blood to strong centrifugation thereby separating said blood into an upper layer (A) of platelet-deficient blood plasma, an intermediate layer ... | 08/25/1992 |
| 5124041 | Biomolecule sample immobilization A filter system for separating and binding biomolecules contained in a solution includes a first filter means for selectively passing components of the solution that are smaller than the biomolecules, thereby concentrating the biomolecules in the solution... | 06/23/1992 |
| 5122284 | Apparatus and method for optically analyzing biological fluids A centrifugal rotor comprising a plurality of peripheral cuvettes and a collection chamber spaced radially inward from the cuvettes is disclosed. The rotor includes a means for introducing fluid into the collection chamber and plurality of generally radia... | 06/16/1992 |
| 5100564 | Blood collection and processing system A system for collecting and processing donated blood comprises a first porous medium interposed between a blood collection bag and a satellite bag and a second porous medium interposed between the blood collection bag and another satellite bag. The porous... | 03/31/1992 |
| 5096573 | Blood and fluid separator apparatus An apparatus wherein a centrifuge organization includes a mounting ring, and includes a plurality of pairs of stirrups, each securing therewithin an associated container. Each container includes a color-coded lid and anhydrous gel cylindrical floor and an... | 03/17/1992 |
| 5084177 | Oil Skimmer The device described herein comprises a ladle type utensil having a handle attached to a substantially cylindrical cup having a bottom comprising either a flat or preferably a concave bottom in which a number of "domes" are set, which "domes" extend upwar... | 01/28/1992 |
| 5061381 | Apparatus and method for separating cells from biological fluids A centrifugal rotor for separating plasma from whole blood includes a plurality of internal chambers and passages for combining the plasma with one or more reagents and distributing the plasma to a plurality of individual test wells. The chambers and pass... | 10/29/1991 |
| 5039401 | Blood collection and centrifugal separation device including a valve A device is disclosed that causes phase separation of whole blood, using much lower centrifugal forces. As a result, lymphocytes are separated from blood cells having specific gravities of 1.08 g/ml or higher. The device features a separation chamber arra... | 08/13/1991 |