...In 1790, the cost to obtain a patent was between $4 and $5.
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 |
| 7429319 | Sewage slurry separation system The present invention discloses a sewage slurry separation system adapted to assist in sewer cleaning operations. The sewage slurry separation system is configured for collecting sewage slurry from a sewer line, depositing the sewage slurry in a collection/settling ... | 09/30/2008 |
| 7354483 | Device and method for transporting and delivering liquid chemical to inside natural gas pipeline A device for transporting and delivering chemical to interior walls of pipelines employs a pig having a tank which contains pressurized chemical therein. Operably connected to the tank is a nozzle which is equipped to deliver the chemical from the tank onto the inne... | 04/08/2008 |
| 7347345 | Device and method for hygienically delivering a liquid food A method and device for hygienically delivering a liquid food to or from a food or beverage dispenser by delivering a flow of liquid food through an outlet positioned at a distance of all surfaces of the dispenser and by frequently cleaning the outlet with a flow of... | 03/25/2008 |
| 7305998 | Mobile flushing unit and process In one embodiment of the invention, a method of cleaning a workpiece is disclosed. The method comprises providing a mobile flushing unit and servicing the workpiece as follows: a) connecting a flexible hose of the mobile flushing unit to one end of the workpiece and... | 12/11/2007 |
| 7252095 | Mobile flushing unit and process In one embodiment of the invention, a method of cleaning a workpiece is disclosed. The method comprises providing a mobile flushing unit and servicing the workpiece as follows: a) connecting a flexible hose of the mobile flushing unit to one end of the workpiece and... | 08/07/2007 |
| 7198052 | Mobile flushing unit and process In one embodiment of the invention, a method of cleaning a workpiece is disclosed. The method comprises providing a mobile flushing unit and servicing the workpiece as follows: a) connecting a flexible hose of the mobile flushing unit to one end of the workpiece and... | 04/03/2007 |
| 7178534 | High pressure tube cleaning apparatus An assembly for rotating and axially directing a high pressure spray hose and spray head to clean residue from the bores of thermal transfer tubes. Modular subassemblies are concentrically aligned and mounted to rotate in synchrony and direct a high-pressure water h... | 02/20/2007 |
| 7124766 | Apparatus and use thereof in cleaning a respiratory device A cleaning apparatus includes a tank housing and a partition disposed in the tank housing so as to divide the interior thereof into pumping and cleaning chambers as the only chambers within the tank housing adapted to contain cleaning liquid. A submersible pump moun... | 10/24/2006 |
| 7097383 | Substrate removal apparatus A substrate removal apparatus capable of cutting a plurality of aligned, precision slots in a variety of surfaces, such as concrete, asphalt pavement, and other composite substrates, utilizes high-pressure liquid cutting devices. Slots may be cut in pavement for suc... | 08/29/2006 |
| 7052389 | Air shower apparatus An air shower for removing a particle from an object by blowing air to the object which includes at least one first outlet for discharging the air from the at least one first outlet toward at least a portion of the object so that a flow axis of the air flowing out o... | 05/30/2006 |
| 7040331 | High pressure tube cleaning apparatus An assembly for rotating and axially directing a high pressure spray hose and spray head to clean residue from the bores of thermal transfer tubes. The assembly includes a number of subassemblies that are concentrically aligned and mounted to rotate in synchrony and... | 05/09/2006 |
| 7017593 | Pipe washing method and pipe washing apparatus A micro device in which a functional element can be moved between an operating position and a waiting position by the displacement of support means coupled to a substrate. The micro device has a cantilever structure in which one end of support means is made a fixed ... | 03/28/2006 |
| 6960128 | Air shower apparatus In an air shower apparatus, an inlet duct guides the air so that the air is directed along a first flow axis of the air, and a variable condition area communicates fluidly with the air flowing out from the inlet duct at at least one side in a direction perpendicular... | 11/01/2005 |
| 6948512 | Flushing attachment for hydrant A device and method for automatically flushing hydrants. The device is installed externally to an existing hydrant. The device comprises a nipple having an internally threaded collar for attaching the device to a hydrant outlet, a valve, a control for automatically ... | 09/27/2005 |
| 6807975 | Urine bag cleaning machine A urine bag cleaning machine includes a housing that has an interior space. A pump is positioned in the interior space. A tank is positioned in the interior space. A conduit is positioned in the interior space and is environmentally coupled to the pump and the tank.... | 10/26/2004 |
| 6776231 | Casing scraper A casing scraper comprises a generally cylindrical body (1) adapted for connection at one end to a drill string, having a plurality of scraping or scouring elements (2) disposed around the outer surface thereof. A pipe (6) extends through the cy... | 08/17/2004 |
| 6761191 | Liquid filling system with improved fluid displacement, nozzle and container handling, cleaning, and calibration/set-up capabilities An improved method and apparatus for a liquid filling system is herein disclosed incorporating means for generating greater overall production rate efficiencies (i.e. number of filled containers per minute per filling station) for automatic systems utilizing diverte... | 07/13/2004 |
| 6758227 | Medical instrument washer A medical instrument washer is provided which includes a rack drawably fitted in a washing tub, for setting washing objects thereon, a flow passage having one end located on a rear side of the washing tub for supplying washing water to the rear side, and a washing d... | 07/06/2004 |
| 6702939 | Sewer cleaning tool A sewer-cleaning tool includes a sleeve is sized to have an inside diameter incrementally greater than the outside diameter of the pipe. A sleeve is sized to have an inside diameter incrementally greater than the outside diameter of the pipe. A scoop, hav... | 03/09/2004 |
| 6615848 | Electronically controlled pipeline monitoring and cleaning device The methods and apparatus of the present invention include an tubing disposed within an conduit to assure flow through the outer pipe. The tubing string is nearly neutrally buoyant or substantially buoyant and has a cleaning and monitoring tool attached t... | 09/09/2003 |
| 6607607 | Coiled tubing wellbore cleanout Method and apparatus for substantially cleaning fill from a borehole, variously including in preferred embodiments disturbing, particulate solids of fill while RIH, entraining particulates while POOH, jetting downhole while RIH and jetting uphole while PO... | 08/19/2003 |
| 6581615 | Apparatus for washing and disinfecting an endoscope cable assembly To completely disinfect a soft cable and a forceps hole of the used endoscope. An apparatus for washing and disinfecting an endoscope cable assembly wherein a U-shaped pipe washing pipe 3 for supplying strong alkaline water, strong acidic water and water ... | 06/24/2003 |
| 6558620 | Liquid cleaning and sterilization method A method of washing, microbially decontaminating, and rinsing of a lumened device (B), such as an endoscope includes positioning the device in a chamber (12) of an automated processor (A). Spray nozzles (102, 104, 106, 108, 110) within the chamber sequent... | 05/06/2003 |
| 6523556 | Portable cleaning apparatus for gas distribution tube A portable flushing apparatus for cleaning the interior of a gas distribution tube. The apparatus includes a first reservoir structure housing a first solvent an a first conduit leading therefrom for selectively transporting solvent to the interior of the... | 02/25/2003 |
| 6523554 | Street sewer passive clean-out system A street sewer passive clean-out system is provided as a system and method to aid municipal workers in the cleaning of street sewers. A net type screen is provided on the end of a fiberglass pole. The pole would be variable in length from eight feet to si... | 02/25/2003 |
| 6502590 | Method and apparatus for flushing x-ray tube heat exchanger A method for cleaning the interior of a heat exchanger includes connecting the heat exchanger (25a-e) to a fluid supply (26) and fluid delivery system (24). Fluid flow is provided from the fluid supply (26) through the interior of the heat exchanger (25a)... | 01/07/2003 |
| 6488041 | System and method for clean and priming extrusion head The present invention relates to a system and method suitable for automatic cleaning of a coating or extrusion head of a coating apparatus. The invention includes a scrubbing station wherein a combination of physical contact and strong solvent solution co... | 12/03/2002 |
| 6475444 | Rinsing tray system A rinsing tray system for pipette tips or transfer needles, arranged in the form of a matrix and having a bottom tray and a top tray, protrusions which have through-apertures arranged perpendicular to the base of the top tray and at the same grid spacing ... | 11/05/2002 |
| 6474349 | Ultrasonic cleanout tool and method of use thereof Apparatus for cleaning well bore tubulars comprises an ultrasound source suspended on a work string adapted to be run in the well, wherein the ultrasound source provides sufficient ultrasonic energy to remove scale or other undesirable debris or particles... | 11/05/2002 |
| 6443169 | Portable apparatus for rotatably maintaining a pumping conduit on an incline The present invention 10 discloses a portable apparatus for rotatably maintaining a length of conduit 12 on an incline to allow an operator 16 to easily and thoroughly clean the conduit as he sprays a jet stream of liquid 24 into the conduit and rotates i... | 09/03/2002 |
| 6394112 | Pipe cleaning nozzle The pipe cleaning nozzle is designed for the removal of deposits (23) in vacuum toilet pipes, particularly such pipes in aircraft, ships and trains. Since pipes (10) of this type are often installed to follow narrow radii of curvature, a need exists for a... | 05/28/2002 |
| 6390105 | Small diameter pipe and tube cleaning apparatus An apparatus for cleaning the interior of small diameter pipes. The apparatus has high-pressure rotary fluid distribution nozzles on a rotating bracket carried on a movable platform. The apparatus is self-centering within the pipe with ultra high-pressure... | 05/21/2002 |
| 6360757 | Insertion and control apparatus An insertion and control apparatus for use with a pipe carrying fluids and having turns and sludge therein to repair a piping system. The apparatus includes a storage and aiming device rotatably mounted about a first axis for winding and unwinding a stiff... | 03/26/2002 |
| 6263534 | Delivery device Disclosed is a slug for distributing a fluid on an inner surface of a bore of a pipeline. The slug comprises a reservoir for containing the fluid to be distributed, an outlet for distributing the fluid from the reservoir and onto the inner surface of the ... | 07/24/2001 |
| 6249927 | Duct-cleaning unit An improvement of the duct-cleaning unit is disclosed for scraping the deposits from the inner surface of the flow line, which are residual in the flow lines after the completion of conveyance of any fluid material to thereby clean the flow lines as well ... | 06/26/2001 |
| 6206016 | Spray cleaner for interior surface of pipeline This application discloses an automated apparatus for cleaning the interior surface of a pipe. The device includes a vehicle which propels itself down the inside of the pipe. A cleaning system is fixed to the vehicle and uses arms to reach the walls of th... | 03/27/2001 |
| 6200068 | Hot tap fluid blaster apparatus and method of using same A apparatus and method of using the apparatus for removing a blockage in a subsea pipeline without retrieval of the pipeline to the surface. The apparatus components include a hot tap saddle, a drill assembly, a fluid blaster assembly and a support frame.... | 03/13/2001 |
| 6171398 | Apparatus for coating a conduit surface An apparatus for coating an interior surface of a conduit. The apparatus has a center rod with a substantially square cross-section that extends axially along the interior surface of the conduit. An index carriage slidably engages the substantially square... | 01/09/2001 |
| 6138697 | Hydrodynamic apparatus for cleaning channels and for monitoring channels A hydrodynamic apparatus for cleaning channels and for monitoring channels is provided for pipes and channels. A disadvantage of all conventional bottom floor cleaners, flushing heads, and channel-cleaning nozzles is that during the cleaning process no ob... | 10/31/2000 |
| 6117242 | Device for internal coating of pipes An apparatus for coating the inside of pipes An apparatus for coating the inside of pipes, in particular the coolant pipes of steam condensers and heat exchangers with plastics, having a supply unit (V) for bringing up and passing on coating material, an ... | 09/12/2000 |