Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 8075224 | Method and device for reconstructing old underground pipes A method for in-situ repair of old underground pipes is disclosed. A breaking tool with a drive or a pipe section is pulled from a typical inspection shaft to the next inspection shaft (machine shaft) by a hydraulic piston-cylinder unit which has a housing that is a... | 12/13/2011 |
| 8025461 | Lining material and pipeline lining method A lining material has a flexible tubular lining material impregnated with a thermosetting resin and having first and second sides. A first elastic and rigid strip member is removably attached to the first side of the flexible tubular lining material so as to extend ... | 09/27/2011 |
| 7717648 | Method for repairing drainage pipe In a method for repairing a drainage pipe, a resin pipe can be placed in an existing drainage pipe connected between connection bodies such as manholes while being buried in the ground, without causing an elongation. The method involves supplying a corrugated resin ... | 05/18/2010 |
| 7682106 | Apparatus for installing slipliners in pipes An apparatus for installing a pipeline slipliner, by pushing rather than drawing the slipliner into the host pipe. The gripper assembly is mounted on the boom of an earthworking machine or other vehicle, such as a track excavator. The gripper assembly includes gripp... | 03/23/2010 |
| 7670086 | Method of repairing a manhole chimney using a stretchable sleeve A method of repairing and renewing a manhole chimney utilizes a circumferentially stretchable liner sleeve which is inserted into the manhole and pressed by an inflatable bladder into engagement with the walls of the manhole chimney. The sleeve is coated with an unc... | 03/02/2010 |
| 7476055 | Underground and partly submerged pipe winding apparatus and method An apparatus and method for lining an underground conduit is disclosed. The apparatus 10 comprises: an annular frame 40 having a crown portion 42 and a base portion 49; a strip guide disposed around and supported by the annular frame 4... | 01/13/2009 |
| 7426941 | Apparatus and method for lateral pipe identification The method for identifying lateral pipes includes printing identifying indicia on the interior surface of a liner assembly positioned adjacent the lateral pipe. The apparatus includes the liner assembly in place with the identifying indicia visible from the interior... | 09/23/2008 |
| 7398797 | Pipe lining method There is provided a pipe lining method wherein a lateral pipe lining material and a main pipe lining material are securely joined. After a lateral pipe has been lined, a start liner is applied to the main pipe and a main pipe lining material is then inserted. A heat... | 07/15/2008 |
| 7381454 | Tubular product A tubular product has a tubular base layer, a tubular innermost layer made of plastic by continuous extrusion, and a tubular tie layer of foamed plastic between and adhered to the base layer and the innermost layer. The tie layer is made of melt processable adhesion... | 06/03/2008 |
| 7374368 | Method and apparatus for slip-lining An apparatus for slip-lining a pipeline with plastic pipe including a slip-line cable having four sections—a forward navigation section, an intermediate locking section connected to a back end of the forward navigation section, a rearward drive section connected t... | 05/20/2008 |
| 7371031 | Sag correction system A housing has a central recessed area with a first end and a second end. Each end has an inside rim with at least one aperture there through. The housing has an outside end with an outside end rim with at least one aperture there through. The housing has a central p... | 05/13/2008 |
| 7360559 | Steam cure of cured in place liner A process for lining an existing pipeline or conduit with a flexible resin impregnated cured in place liner by pulling in the liner and inflating an eversion bladder with air and curing the liner with flow-through steam without loss of pressure is provided. The blad... | 04/22/2008 |
| 7353889 | Rotary driven pipe-bursting tool An apparatus for bursting pipe is preferably adapted to receive rotational energy from the inner member of a dual-member drill string. In a preferred embodiment, a plurality of pipe-bursting members, driven by the interconnected inner members, cut or burst a subterr... | 04/08/2008 |
| 7351011 | Apparatus for defining a passageway through a composition An apparatus for defining a passageway through a composition between first and second locations. The apparatus has a cable pulling assembly and a support for the cable pulling assembly. The cable pulling assembly has a capstan assembly, with a part of the capstan as... | 04/01/2008 |
| 7343937 | Method of locating liner within sewer pipe A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangibly connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining... | 03/18/2008 |
| 7339341 | Surgical camera robot The present invention is a miniature camera robot which can be placed entirely within an open space such as an abdominal cavity. The instant camera robot has pan and tilt capabilities, an adjustable focus camera, and a support component for supporting the robot body... | 03/04/2008 |
| 7311122 | Lining material for rehabilitating an existing pipe and a manhole, and barrier liner and method for rehabilitating a pipe and a manhole A pipe lining material for lining the main pipe of a sewer has a soft tubular resin absorption material impregnated with a liquid thermosetting resin, and also has a biodegradable film applied to the external peripheral surface of the pipe lining material. The pipe ... | 12/25/2007 |
| 7311121 | Lateral pipe lining material and lateral pipe lining method A lateral pipe lining material comprises a tubular resin absorbing material impregnated with a setting resin, which has a flange at one end thereof and whose outer surface is coated with a highly airtight film. A sealing tube is detachably attached to the outer circ... | 12/25/2007 |
| 7306011 | Apparatus and method for lateral pipe identification The method for identifying lateral pipes includes printing identifying indicia on the interior surface of a liner assembly positioned adjacent the lateral pipe. The apparatus includes the liner assembly in place with the identifying indicia visible from the interior... | 12/11/2007 |
| 7292156 | Remote tapping method and system for internally tapping a conduit Disclosed is a method, system and apparatus for use in remotely and internally tapping a conduit. The method is performed, at least partially, by an automatic mechanism or robot configured to effectively perform the tasks and various steps of the method. The method ... | 11/06/2007 |
| 7289873 | Sensor system for a cutting machine tool The present invention relates to a sensor system for a cutting machine tool (300) with an energy supply unit (101), which inductively provides energy for the supply of at least one sensor arrangement (110) of the cutting machine tool (300... | 10/30/2007 |
| 7278442 | Vented port-cap for fire hydrant The vented port-cap includes a check-valve, which admits air into the barrel of the hydrant when the pressure inside is lower than the pressure outside. After an inspection of the hydrant, the hydrant can be left to drain by itself, even though the port-cap has been... | 10/09/2007 |
| 7270150 | Method of lining a pipeline The present invention is an improved method for installing a liner to repair a pipeline. The method involves placing a flexible lining hose that is coated with a thermosetting resin into the pipeline. A quick setting resin is also applied to the interior walls of th... | 09/18/2007 |
| 7267288 | Polyurethane in intimate contact with fibrous material A sprayable polymeric material and a process for preparing the material which contains a fibrous material, dispersed throughout the polymeric material. A restriction free spray nozzle is provided for mixing and spraying the polymeric material having a fibrous materi... | 09/11/2007 |
| 7267507 | Method of reinforcing an embedded cylindrical pipe A composite structural reinforcement is realized within the pipe through in situ stratification of at least one band of reinforcement fibers and a resin matrix. The band is arranged according to a helicoidal path along the internal side of the pipe. ... | 09/11/2007 |
| 7255171 | Method and apparatus for manufacturing an expandable slotted tube A method of manufacturing an expandable slotted tube fabricated from at least one tubular element and at least two annular elements connected to the opposite ends of the tubular element by means of butt joints wherein axially extending slots are formed at a uniform ... | 08/14/2007 |
| 7241076 | Method and device for repairing or reinforcing an underground pipe A method for reinforcing or repairing a pipe pulls a liner assembly with a flexible smooth bore liner and a semi-rigid helix that gives non-collapsible characteristics within the damaged pipe for both linear pipe sections and curved pipe sections. The existing pipe ... | 07/10/2007 |
| 7228915 | Device and method to seal boreholes Apparatus and methods are described that are particularly suited for creating a seal in a borehole annulus. In one embodiment, an outer surface 10s of an expandable conduit 10 is provided with a formation 20 that includes an elastomeric m... | 06/12/2007 |
| 7195079 | Directional reaming system A horizontal directional drilling system is used to drive operation of a guidable reamer assembly connected to a drill string. The guidable reamer assembly preferably has a cutting member with a central longitudinal axis and a support member also having a central lo... | 03/27/2007 |
| 7191801 | Apparatus and method for installation of pipe liner An apparatus and method for lining sewer pipes that utilize an adjustable form configured to conform to the shape and dimensions of the interior of a man-entry sized pipe line. The adjustable form can be used to position a sheet of liner material immediately adjacen... | 03/20/2007 |
| 7186060 | Method and device for lining construction in sewer followed by simultaneous filling of back-fill material In lining work in which a lining pipe R formed by spirally winding a strip-like member 500 consisting of an elongated sheet-form body is left in place inside a tubular culvert P, and a new lining pipe is additionally formed in front of this lining pipe that h... | 03/06/2007 |
| 7172369 | Methods for aligning pipes and connecting the lined pipe with adjacent or lateral pipes A deformed thermoplastic liner is drawn through a cut host pipe and split sleeve halves attached to it and then reformed to its cylindrical configuration using pressurized steam. The split sleeve halves are removed, and an adapter flange is fused onto a cut end of t... | 02/06/2007 |
| 7156585 | Method and apparatus for drawing a mole through a composition A method of advancing a mole to define a passageway through a composition between first and second locations spaced from each other a substantial first distance. The method includes the steps of: attaching the mole to a cable; providing a support; providing a cable ... | 01/02/2007 |
| 7156124 | Segment for rehabilitating an existing pipe and a rehabilitating pipe assembled using segments A segment for rehabilitating an existing pipe has an integral structure comprised of an inner plate having an inner circumferential surface that is planar or curved with a prescribed curvature, two side plates provided upright on each side edge of the inner plate, a... | 01/02/2007 |
| 7157010 | Polymeric flocculant infused silt fence A polymeric flocculant infused silt fence assembly comprising two opposing and attached geo-textile sheets, each adapted to filter entrained non-colloidal particles and together encasing a layer of polymeric flocculant material. In a preferred embodiment the polymer... | 01/02/2007 |
| 7143659 | Pipe-inspection system A pipe-inspection system (100) is provided. The system (100) is made up of a transmission cluster (104) incorporating a transmission unit (800) between first and second wheeled guidance units (400), and a reception cluster (104 | 12/05/2006 |
| 7140430 | Expander for expanding a tubular element An expander for radially expanding a tubular element, comprising an expander body connectable to an elongate member for moving the expander in axial direction through the tubular element, the expander body having a first body portion and a second body portion axiall... | 11/28/2006 |
| 7137757 | Method and device for repairing or reinforcing an underground pipe A method for reinforcing or repairing a pipe pulls a liner assembly with a flexible smooth bore liner and a semi-rigid helix that gives non-collapsible characteristics within the damaged pipe for both linear pipe sections and curved pipe sections. The existing pipe ... | 11/21/2006 |
| 7131791 | Pipeline rehabilitation systems Devices and methods for streamlining the completion of work functions within a lateral pipe connected to a main pipe. A variety of different lateral devices may be used to aid in the process of relining the main or lateral pipe. A lateral location device is inserted... | 11/07/2006 |
| 7121766 | Inflatable underground structure liner An underground structure liner based upon an inflatable liner structure. An acid resistant layer is the innermost layer of an inflatable liner, and the liner is coated with epoxy resin on its outermost surface, the surface which contacts the existing walls of the un... | 10/17/2006 |