Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 405/124
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Culvert
Description: Method or apparatus relating to conducting water not under pressure within a closed fluid conduit through an embankment.

Sub-classes under this class:

Class Number Class Name Patents
405/126 Serially connected segments 47
405/125 Terminal or head 44

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8523486 Concrete culvert assembly and related methods Sep. 3, 2013
8496408 Spring lock culvert pipe liner Jul. 30, 2013
8425152 Arched culvert and method of manufacture Apr. 23, 2013
8425153 Arched culvert and method of manufacture Apr. 23, 2013
8096730 Apparatus for laying concrete metal pipes inverts and method for using the same Jan. 17, 2012
7770250 Flared leg precast concrete bridge system Aug. 10, 2010
7559720 Culvert bundle for stream crossings and flow-through bridge abutments Jul. 14, 2009
7217064 Reinforcement of arch type structure with beveled/skewed ends May. 15, 2007
7137756 Fluid-tight bell-and-spigot-joint for box culverts Nov. 21, 2006
7080956 Open bottom box culvert Jul. 25, 2006
6986222 Planting receptacle assembly and a method for planting Jan. 17, 2006
6962465 Method for improving the environment within soil embedded culvert and bridge systems Nov. 8, 2005
6922950 Top arch overfilled system Aug. 2, 2005
6874974 Reinforced soil arch Apr. 5, 2005
6854928 Precast concrete culvert system Feb. 15, 2005
6854925 Storm water reservoir with low drag Feb. 15, 2005
6764250 Method of load reduction on buried culvert using EPS block and/or geosynthetics Jul. 20, 2004
6736570 Precast safety end and form therefor May. 18, 2004
6719492 Top arch overfilled system Apr. 13, 2004
6652187 Portable cofferdam and method for stabilizing the structural integrity of box culvert bridges Nov. 25, 2003
6609854 Structure and method for detecting an inflated state of a flexible membrane dam Aug. 26, 2003
6575662 Water quality management system and method Jun. 10, 2003
6561732 Driving pipe and method for the construction of an essentially horizontal pipeline May. 13, 2003
6533498 Reinforced composite material Mar. 18, 2003
6460213 Precast concrete structure having light weight encapsulated cores Oct. 8, 2002
6447206 Beaver control screen for culvert pipe Sep. 10, 2002
6394700 Highway underdrain plastic apron endwall with anti-floatation wings May. 28, 2002
6338595 Storm water control header for culverts Jan. 15, 2002
6205605 Method of construction of a vault, bearing piece and half-shell for construction of the vault Mar. 27, 2001
6203245 Culvert end guard Mar. 20, 2001
6161342 Prefabricated concrete element for building a civil engineering structure having an arched wall Dec. 19, 2000
6076993 Leaching chamber Jun. 20, 2000
6050746 Underground reinforced soil/metal structures Apr. 18, 2000
5980156 Tunnel liner building method and building panels therefor Nov. 9, 1999
5839844 Leaching chamber endplate Nov. 24, 1998
5836717 Multi-segment spandrel wall for overfilled arch structures Nov. 17, 1998
5720577 Box culvert Feb. 24, 1998
5551798 Culvert end wall retainer system Sep. 3, 1996
5487251 Apparatus and method for reinforcing cast structures Jan. 30, 1996
5449020 Elongated enclosure of large cross-section, and process for its manufacture Sep. 12, 1995
5401116 Leaching system conduit with cantilevered leg joint Mar. 28, 1995
5380123 Method for building a road bed and the use of the same Jan. 10, 1995
5375943 Short radius culvert sections Dec. 27, 1994
5326191 Reinforced metal box culvert Jul. 5, 1994
5281053 Underground tubular structural system and process for producing it Jan. 25, 1994
5252002 Natural bottom culvert and method for installation Oct. 12, 1993
5118218 Box culvert without rib stiffeners Jun. 2, 1992
5092710 Underground tubular structural system and process for producing it Mar. 3, 1992
5046893 Panel with a fretted transversal section, to be mounted longitudinally as a covering for the inside walls of road tunnels Sep. 10, 1991
5037542 Protective grating with pivoting sections for culvert pipe Aug. 6, 1991

1 2

  Recently Added Patents
Nonvolatile semiconductor memory device and method for controlling the same
Method for carrying out a chemical reaction
Barrier layers comprising Ni-inclusive ternary alloys, coated articles including barrier layers, and methods of making the same
Systems and methods for authorizing, authenticating and accounting users having transparent computer access to a network using a gateway device
Sealed, waterproof digital electronic camera system and method of fabricating same
File management apparatus and file management apparatus controlling method
  Randomly Featured Patents
Emulation devices, systems and methods with distributed control of test interfaces in clock domains
Golfing accessory holder
Enhanced hydration extrusion cooking system, method and product
Method for determining measuring points
Laser optical bench for laser desorption ion sources and method of use thereof
Method of driving device having metal-insulator-metal(mim)structure
Braking force control apparatus
Biocidal compositions and use thereof containing a synergistic mixture of N-tributyl tetradecyl phosphonium chloride and N-dodecylguanidine
Enhanced nitrite production in transfected murine cells
Method of production of acrylonitrile polymer with vinylbenzyl sulfonic acids