Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 7429323 | Water treatment system and pressure pipe therefor A pressure pipe for transporting corrosive material, such as ozonated water, is formed with a pipe joint that is resistant to ozone. An intermediate portion of the pressure pipe is formed from a low-carbon steel cylinder with inner and outer concrete layers and pres... | 09/30/2008 |
| 7347227 | Method of reinforcing a cylindrical pipeline and prefabricated plate used in such method In order to reinforce a cylindrical pipeline, in particular an underground water supply pipeline, prestressing reinforcements are placed and tensioned around it. In a zone where the pipeline has a radial projection, for example providing a manhole for access to the ... | 03/25/2008 |
| 7200973 | Wire reinforced thermoplastic coating A structural reinforcing layer made from wire, a structural reinforcing composite layer made from wire, and the resulting load bearing structures made from or retrofitted with wire reinforced plastics and cements. Said layers and structures made from monofilament me... | 04/10/2007 |
| 7165578 | Method for laying a rehabilitating pipe A rehabilitating pipe is laid inside an existing pipe to rehabilitate the existing pipe. Support members are intergrally connected to an inner wall surface of the existing pipe so that loop portions of the respective support members extend from the inner wall surfac... | 01/23/2007 |
| 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 |
| 7056064 | Block unit for repairing flow passage facilities and method of repairing flow passage facilities A block unit for repairing flow passage facilities is provided for permitting a desired repair operation. A method of repairing flow passage facilities using the block unit is also provided. The block unit includes an inner plate defining an inner surface, an outer ... | 06/06/2006 |
| 7017613 | Segment for rehabilitating pipe assembly A segment is coupled to additional segments to constitute a rehabilitating pipe for repairing an existing pipe. The segment comprises an inner plate that defines the inner circumferential surface of the rehabilitating pipe and has an opening therein for performing t... | 03/28/2006 |
| 6796334 | Duct repairing material, repairing structure, and repairing method The present invention relates to a conduit repairing material, repairing structure, and repairing method thereof, and particularly provides a repairing method for an existing conduit characterized by comprising using a plurality of reinforcing members capable of bei... | 09/28/2004 |
| 6403180 | Pipe insulation An insulating system for pipes is provided which includes at least two different types of pipe insulation, wherein each pipe insulation is a pipe jacket formed by two mating sections, a first section and a second section with each section having a mating ... | 06/11/2002 |
| 6247501 | Clip-on stirrup mat A clip-on stirrup mat for a concrete reinforcement cage comprises at least one and preferably a plurality of resilient clips attached to the stirrup mat and extending outwardly therefrom in the direction of application of a mat to a cage. The clip has a r... | 06/19/2001 |
| 6197395 | Hollow reinforcing members and composites containing the same There is disclosed a hollow reinforcing element for casting into composites, which in use defines passageways that may communicate to the exterior of the composite and that can serve as conduit arrays in structures formed from the composite. Benefits incl... | 03/06/2001 |
| 6076562 | Pre-stressed concrete pipe An outer pipe casing (20) and a concrete tube (26) cast inside, form a pre-stressed concrete pipe in its elementary form. Prior to casting, a layer of non-cohesive material (28) is sprayed on the inside of the pipe casing and an annular ring (32) is welde... | 06/20/2000 |
| 6068027 | Pipeline insulation An insulation blanket for a pipeline, comprising at least one insulating cell, wherein the or each insulating cell comprises a protective layer and an insulating layer.... | 05/30/2000 |
| 5955162 | Calcium alumina cement lined pipe Cast iron pipe and other elongated hollow articles are lined with a cementitious mortar for certain applications, such as the transmission of potable water or sewage. To improve the resistance to attack from acids and to provide a crack and holiday free c... | 09/21/1999 |
| 5927346 | Concrete pipes and methods for the manufacture thereof A concrete pipe and methods for forming the same are presented by this invention. The pipe includes an inner and outer sleeve separated by a spacer ring which creates a void therebetween. Concrete is poured within this void to solidify the pipe structure.... | 07/27/1999 |
| 5924458 | Self-locking stirrup mat A self locking stirrup mat for providing supplemental support for wire cage concrete reinforcement comprises a stirrup mat formed of a grid of interconnected wires preferably with manually formable tie wires, stirrup elements projecting from the grid, and... | 07/20/1999 |
| 5904185 | Conduit for the circulation of fluid A conduit for the circulation of fluid under pressure comprising a tubular enclosure delimited by a thin wall and fixed on a rigid base slab of molded material. The upper part of the enclosure comprises, in cross-section, at least three thin wall segments... | 05/18/1999 |
| 5798151 | Hydraulically settable articles which include helically wound filaments Methods and apparatus for continuously extruding a hydraulically settable mixture and simultaneously placing continuous filaments within the extruding mixture to yield articles having a filament-reinforced, hydraulically settable matrix. The filaments can... | 08/25/1998 |
| 5691050 | Concrete molding with improved acid resistance Unreinforced or reinforced concrete moldings, for example concrete pipes, with improved corrosion resistance to acids and acidic sewage, improved permeation resistance to inorganic and organic liquids and gases and improved mechanical stability, produced ... | 11/25/1997 |
| 5649568 | Glass fiber reinforced cement liners for pipelines and casings Conduits having cement-containing liners for the inner and outer surfaces of metal pipes include a fibrous material, such as glass fibers, to prevent cracking and/or inhibit crack propagation.... | 07/22/1997 |
| 5599597 | Concrete molding with improved acid resistance Unreinforced or reinforced concrete moldings, for example concrete pipes, with improved corrosion resistance to acids and acidic sewage, improved permeation resistance to inorganic and organic liquids and gases and improved mechanical stability, produced ... | 02/04/1997 |
| 5593744 | Hollow reinforcing members and composites containing the same There is disclosed a hollow reinforcing element for casting into composites, which in use defines passageways that may communicate to the exterior of the composite and that can serve as conduit arrays in structures formed from the composite. Benefits incl... | 01/14/1997 |
| 5573040 | Interlocked plastic-encased concrete pipe A composite concrete pipe in which both the inner and outer surfaces are plastic. The pipe may be formed of any diameter by forming the inner and outer plastic surfaces from helically wrapped interlocking plastic strips to form the diameters desired.... | 11/12/1996 |
| 5487251 | Apparatus and method for reinforcing cast structures A rectangular reinforcing cage is provided for a cast concrete structure having longitudinal registration tubes at each corner of the cage. An outer reinforcing cage surrounds the registration tubes and a coaxial inner reinforcing cage is supported from t... | 01/30/1996 |
| 5385175 | Conduit having hydrophilic and oleophobic inner surfaces for oil transportation A conduit for transporting an oil and water mixture wherein the conduit has an inner surface is substantially hydrophilic and oleophobic. The surface is characterized by a water absorption capacity of greater than or equal to about 8% by weight, and by a ... | 01/31/1995 |
| 5312657 | Phosphate cement pipe cladding A pipe cladding composition is described which is a phosphate ceramic permeating a non-woven fibrous network. The overall thickness of the sheet is between about 5 and about 20 mils. The phosphate ceramic permeates the fibrous network and extends beyond t... | 05/17/1994 |
| 5271974 | Improved cement and polyolefin lined product Iron pipe and other hollow articles are lined with a cementitious mortar containing a quantity of polymer particles and the pipe is rotated about its axis so as to stratify the mortar and develop a polymer rich inner surface that is subsequently cured, dr... | 12/21/1993 |
| 5186217 | Fluid-impervious structure and method of making same A concrete structure is lined with a statically self-supporting glass shell composed of shell segments which are themselves joined together by sealing strips. In a pipe embodiment of the invention, the shell segments form a ring spaced from the concrete b... | 02/16/1993 |
| 5065795 | Prestressed concrete articles A prestressed concrete article including overlying the ends of the article and having gasket rings between the article and the end walls. A hardenable medium is injected between the jacket and the concrete article and generates a sufficient pressure so as... | 11/19/1991 |
| 5066834 | Flexible guide rail and method for manufacturing same A method for manufacturing multi-dimensionally curved guide rails having tubular cross-sections for passenger and material transportation systems, in which a hose-like plastic tube of any tubular cross-section is bent according to requirements and subsequ... | 11/19/1991 |
| 5061121 | Fluid-conveying conduit A fluid-conveying conduit of large cross section, formed by assembling on a laying surface a plurality of prefabricated longitudinal elements placed in sequence and comprising, in transverse section, a lower base and a vault having two lateral edges conne... | 10/29/1991 |
| 4976291 | Centrifugally molded concrete composite pipe A concrete-type composite pipe having a cylindrical concrete layer and a corrosion protective layer formed in an inner surface of the drum mold; in a boundary region between the concrete layer and the corrosion protective layer, an intermediate resin/conc... | 12/11/1990 |
| 4808032 | Thrust pipe Thrust pipe for disposition in a passage in the ground by advance of the pipe axially through the passage includes a plurality of pipe segments disposed in end-to-end relation one to the other. Each pipe segment includes an inner pipe section having a dia... | 02/28/1989 |
| 4771530 | Application of inwardly directed prestressing pressure to concrete members Methods for forming prestressed concrete members wherein a pressure-containing casing is disposed around the outside surface of the concrete member and is spaced therefrom so that a cavity is formed between the casing and the outside surface of the concre... | 09/20/1988 |
| 4759390 | Coated metal pipe having bending capability In a concrete-wrapped pipe having an inner water-impermeable resinous coating, the concrete wrapping is formed with a continuous inner portion covering the resinous coating and a helically slotted outer portion, the helical slot extending at least to the ... | 07/26/1988 |
| 4684155 | Pipe elbow with abrasion resistant composite inner liner and method for forming A pipe elbow having a composite ceramic wear liner which is particularly adapted to resist abrasive wear from particulate material conveyed through the pipe elbow. The composite ceramic wear liner is comprised of four series of polyhedron shaped ceramic w... | 08/04/1987 |
| 4644978 | Tension arch structure A structural system for use in bridges, buildings and other structures. The system supports part of its load by tension action and part of its load by arch action. Cables are stretched and anchored between end supports. Lateral compressive elements are pl... | 02/24/1987 |
| 4633568 | Method of manufacturing reinforced concrete pipe having an evenly distributed steel wire reinforcement A plain concrete pipe having an evenly distributed steel wire reinforcement is disclosed, said pipe being suitable for water piping and the like; this pipe being reinforced with a reinforcement constituted by thin wires evenly distributed and arranged in ... | 01/06/1987 |
| 4611635 | Coated pipe having bending capability In a concrete-wrapped pipe having an inner water-impermeable resinous coating, the concrete wrapping is formed with a continuous inner portion covering the resinous coating and a helically slotted outer portion forming a helical wrap, the helical slot ext... | 09/16/1986 |
| 4583771 | Concrete pipe A concrete pipe has a socket end and a spigot end which consists of an annular cap made of plastic material and having an inner wall with an inner diameter corresponding to the inner diameter of the pipe, an outer wall with an outer diameter smaller than ... | 04/22/1986 |
