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Class Information
Number: 249/11
Name: Static molds > In situ construction engineering type or building type-mold or form > Forming hydraulic and earth control type product in situ > Culvert, waterway, pipe, or tunnel
Description: Apparatus comprising means for forming a culvert, waterway, pipe or tunnel at the job site.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7172368 |
Assembly and method of forming a trench of a predetermined shape |
Feb. 6, 2007 |
| 7059806 |
Hole former for an invert |
Jun. 13, 2006 |
| 6945735 |
Alignment and support apparatus |
Sep. 20, 2005 |
| 6926245 |
Mounting bracket assembly for connecting frame members of a trench-forming assembly and associated method of fabricating frame members |
Aug. 9, 2005 |
| 6808156 |
Method and apparatus for molding concrete into a bridge or other structure |
Oct. 26, 2004 |
| 6769662 |
Form and method for casting a monolithic precast safety end |
Aug. 3, 2004 |
| 6619885 |
Telescopic tunnel form |
Sep. 16, 2003 |
| 6601347 |
Method for manufacturing a ready-to-use catch pit |
Aug. 5, 2003 |
| 6347781 |
Concrete hole former with embedded gasket |
Feb. 19, 2002 |
| 6220784 |
Method and apparatus for forming a trench |
Apr. 24, 2001 |
| 6082671 |
Entomopter and method for using same |
Jul. 4, 2000 |
| 6045114 |
Elongated, curved framework with a variable degree of curvature |
Apr. 4, 2000 |
| 5882145 |
Method for controlling expansion and contraction of trench liners |
Mar. 16, 1999 |
| 5879106 |
Method and apparatus for controlling expansion and contraction of trench lines having lateral extensions |
Mar. 9, 1999 |
| 5806829 |
Concrete hole former |
Sep. 15, 1998 |
| 5709769 |
Duct assembly system |
Jan. 20, 1998 |
| 5573351 |
Method and apparatus for relining or forming a trench |
Nov. 12, 1996 |
| 5573350 |
Method for cutting complexly shaped foamed plastic bodies from a workpiece and foam body products |
Nov. 12, 1996 |
| 5538361 |
Apparatus for forming a trench |
Jul. 23, 1996 |
| 5478169 |
Method and apparatus for forming a trench |
Dec. 26, 1995 |
| 5413307 |
Precast manhole invert forming |
May. 9, 1995 |
| 5301918 |
Form assembly for construction of concrete culverts |
Apr. 12, 1994 |
| 5281052 |
Multi-containment trench system |
Jan. 25, 1994 |
| 5198246 |
Concrete molding device |
Mar. 30, 1993 |
| 5125617 |
Adjustable radius walers for forming |
Jun. 30, 1992 |
| 5108671 |
Concrete formwork and method for forming a draft tube |
Apr. 28, 1992 |
| 5099887 |
Drain collar |
Mar. 31, 1992 |
| 5017313 |
Method and means for repairing existing manhole |
May. 21, 1991 |
| 4995584 |
Cast-in-place manhole liner apparatus |
Feb. 26, 1991 |
| 4969626 |
Adjustable form for casting concrete culverts |
Nov. 13, 1990 |
| 4953280 |
Method of manufacturing prestressed concrete culverts |
Sep. 4, 1990 |
| 4951914 |
Pipe seal assembly for poured concrete on-site waste disposal system components |
Aug. 28, 1990 |
| 4930937 |
Box culvert traveler for use with concrete forming systems |
Jun. 5, 1990 |
| 4913587 |
Form assembly for making covering wall of tunnel made by shield type excavator |
Apr. 3, 1990 |
| 4892441 |
Apparatus and a method for distributing concrete and similar materials to selected points of use |
Jan. 9, 1990 |
| 4890993 |
Apparatus for forming concrete structures |
Jan. 2, 1990 |
| 4867411 |
Manhole invert casting system |
Sep. 19, 1989 |
| 4854543 |
Apparatus for forming an opening with a gasket in a masonry manhole |
Aug. 8, 1989 |
| 4844655 |
Surface drainage conduit installation structure and method |
Jul. 4, 1989 |
| 4826639 |
Moulding process and apparatus for making arch-shaped concrete structures |
May. 2, 1989 |
| 4799824 |
Method of making covering wall of tunnel made by shield type excavator |
Jan. 24, 1989 |
| 4790508 |
Concrete casting form including retractable core |
Dec. 13, 1988 |
| 4685650 |
Apparatus for forming inverts and manhole assemblies |
Aug. 11, 1987 |
| 4650149 |
Mold assembly for installing a gasket in the peripheral wall of an opening in a wall |
Mar. 17, 1987 |
| 4615644 |
Prestressed tunnel lining |
Oct. 7, 1986 |
| 4614324 |
Mold for producing concrete pipe |
Sep. 30, 1986 |
| 4610566 |
Curb inlet with removable gutter form |
Sep. 9, 1986 |
| 4565347 |
Monolithic precast invert system |
Jan. 21, 1986 |
| 4564313 |
Rectilinear culvert structure |
Jan. 14, 1986 |
| 4536103 |
Adjustable manhole frame and method of construction and installation |
Aug. 20, 1985 |
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