...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7878704 | Double-chamber mixing device for viscous pharmaceutical substances The invention concerns a double-chamber device for mixing at least two viscous substances, comprising: cylindrical and coaxial first and second communicating vessels, each hermetically sealed at one end by a mobile piston, and provided at its second end with a sligh... | 02/01/2011 |
| 7341369 | Isotropic illumination An isotropic illuminator is described, including a relay lens configured to focus a source image propagated from a source and a lightpipe having an entrance aperture and an exit aperture. The source image is aligned by a folding element to fill the entrance aperture... | 03/11/2008 |
| 7296922 | Method and an apparatus for processing of liquids or pastes An apparatus for processing a liquid or a paste, particularly a highly viscous or sticky liquid or paste, includes two or more cylindrical storage chambers, and at least one interconnecting conduit interconnecting the storage chambers. The liquid or paste is process... | 11/20/2007 |
| 7178978 | Fluid mixing apparatus and method This invention relates to devices, methods, and systems for mixing materials, and in particular provides linkages and containers such as syringes in operative arrangement such that actuation of the linkages can move material from one container to another thereby mix... | 02/20/2007 |
| 7109468 | Imaging arrangement method for high-speed imaging An electro-optic device is disclosed which has a plurality of independently-gatable portions. One example is an image intensifier having a number of segmented photocathode areas (GP). The corresponding portions of the intensifier can be energized independently via c... | 09/19/2006 |
| 7080936 | Wrap spring clutch syringe ram and frit mixer A wrap spring clutch syringe ram pushes at least one syringe with virtually instantaneous starting and stopping, and with constant motion at a defined velocity during the intervening push. The wrap spring clutch syringe ram includes an electric motor, a computer, a ... | 07/25/2006 |
| 7079321 | Illumination system and method allowing for varying of both field height and pupil A method and system allow for changing (continuously or variably) both a field height and pupil of a beam that illuminates an object field. In one example, the object field can have a pattern generator (e.g., one or more reticles, spatial light modulators, or the li... | 07/18/2006 |
| 7033067 | Cascading orifice mixer A cascading orifice mixer for mixing a viscoelastic material comprising a plurality of chambers connected in series, including a first chamber, at least one intermediate chamber and a last chamber, each chamber including an orifice providing fluid communication betw... | 04/25/2006 |
| 7006295 | Illumination system and method for efficiently illuminating a pattern generator An illumination method and system use a light source and illumination optics to illuminate a pattern generator. The illumination optics can include at least two devices. For example, if first and second diffractive and/or refractive devices are used, one can be a pu... | 02/28/2006 |
| 6976778 | Rod integrator, illuminator, projector, and optical device The invention provides a rod integrator or the like having high efficiency for light utilization and suitable for a color-recapture system. The present invention can include a rod integrator having a reflective inner circumference (reflecting surface) for emitting l... | 12/20/2005 |
| 6968073 | Occupant detection system An eye-safe light curtain is generated by a plurality of LED's illuminating a cylindrical lens having a corrugated cylindrical surface. A camera generates a first image of an avoidance zone boundary of an air bag inflator with the light curtain off, and a second ima... | 11/22/2005 |
| 6799884 | Dual chamber orifice mixer and method of use A method and apparatus for mixing a polymer with an agglomerates of one or more compounds in a pair of opposed pressure cylinders with a nozzle block there between using moving the pistons to force the polymer with the agglomerates from pressure cylinders into the o... | 10/05/2004 |
| 6592251 | Cement mixing and dispensing device An apparatus and method for mixing a liquid component and a powdered component to form a bone filler has first and second syringes each having a barrel, a plunger and an exit port. The plunger is moveable with the barrel of each syringe along a longitudin... | 07/15/2003 |
| 6234196 | Mixing adaptor and system A mixing adaptor enables a material to be transferred from a first delivery means to a second delivery means and enables another material to be transferred from the second delivery means to the first delivery means. The adaptor has (i) a hollow main body ... | 05/22/2001 |
| 6062722 | Fluid mixing and withdrawing methods Fluid mixing methods and systems are disclosed. In but one implementation, a fluid mixing method includes providing a mixing passageway having a mixing element therein. A fluid to be mixed is passed in both of opposing directions through at least a portio... | 05/16/2000 |
| 5957166 | Method and apparatus for dispersing fluid into a material A fluid dispersion and delivery assembly (16) includes first and second syringes (18,20) containing a first, fluid material (32) and a second material (34), fluidly coupled together at their distal ends (22,24) by a fluid transfer assembly (2). The fluid ... | 09/28/1999 |
| 5908054 | Fluid dispersion and delivery assembly and method A fluid dispersion and delivery assembly (49) includes first and second syringes (28,50) containing a hemostatic solution (38) and a flowable gel material (58), fluidly coupled together by a fluid transfer assembly (2). The fluid transfer assembly include... | 06/01/1999 |
| 5823671 | Apparatus and method of mixing materials in a sterile environment An apparatus for mixing a particulate material into a liquid includes a pair of variable volume receptacles interlinked by a communication passage. A combined volume of liquid and particulate material is received within the variable volumes, and the volum... | 10/20/1998 |
| 5251978 | Driving device for a vortex mixing apparatus A driving device for a vortex mixing apparatus comprises holders for holding a mixing unit of a type having at each opposite end a pumping diaphragm for imposing a pulsatile flow on a liquid passing through a primary channel in the unit. Two pistons are e... | 10/12/1993 |
| 4918583 | Illuminating optical device An illuminating optical device having an optical integrator capable of receiving a light flux from a light source and substantially forming a plane light source comprising a plurality of light source images and uniformly illuminating an object includes a ... | 04/17/1990 |
| 4876038 | Apparatus for making a post-foaming gel An apparatus for making a post-foaming gel comprising, a first cylinder having a chamber and a slidable piston separating the chamber into a first compartment to receive a gel base and a second compartment, a second cylinder having a chamber and a slidabl... | 10/24/1989 |
| 4832500 | Mixing apparatus and processes Apparatus for mixing or otherwise agitating fluid material comprises an elongated vessel (1) to contain the material, means (6, 7, 9, 10) to impose oscillatory motion upon the material in a lengthwise direction, and a plurality of stationary obstacles (19... | 05/23/1989 |
| 4592657 | Mixing head for producing a preferably chemically reactive mixture of two or more plastics components A mixing head essentially comprises a housing with a mixing chamber which has inlet orifices for the individual plastics components and an outlet orifice for the plastics component mixture. In the mixing chamber is located an expulsion plunger of identica... | 06/03/1986 |
| 4440500 | High pressure impingement mixing apparatus Apparatus for high pressure impingement mixing includes a mixing chamber and aftermixer chamber located on opposite sides of, and perpendicular to, a transfer dispense chamber. Two or more reactive components are injected into the mixing chamber. The resu... | 04/03/1984 |
| 4350650 | Method for admixing at least two liquids and feeding them to a shaping mould A method is disclosed for intimately blending two liquid phases, such as is required, for example, in the plastics materials industry, the method including causing the two liquids to flow under throttled conditions through a nozzle after having been press... | 09/21/1982 |
| 3995530 | Shaking machine A shaking machine for shaking core sand out of hollow castings includes a pair of coaxial cylinders containing pistons with piston rods arranged to grip a casting, and a rotating vane air valve for supplying compressed air alternately to each of the two c... | 12/07/1976 |