Patents for E02D 29 - Underground or underwater structures; Retaining walls (15,197)
11/1978
11/21/1978US4125970 Bulk storage facility
10/1978
10/31/1978US4123034 Box form for concrete culvert
10/24/1978US4121390 Pre-cast units for sewer construction
10/10/1978US4119291 Sewer form
10/03/1978US4117686 Fabric structures for earth retaining walls
10/03/1978CA1039519A1 Laying of underwater pipelines
09/1978
09/26/1978US4116010 Stabilized earth structures
09/19/1978US4114383 Portal frame for trench box stack
09/12/1978CA1038244A1 Formation of glass fibre reinforced unsaturated polyester resin sheets on ground surfaces
09/05/1978US4110988 Method for forming domes from subterranean diapiric material
08/1978
08/29/1978US4109425 Circular type manholes
08/29/1978CA1037270A1 Precast ribbed arch subway structure and method
08/01/1978US4103901 Molded pleated gasket and device for installing same on pipe
07/1978
07/25/1978US4102088 Manhole-pit lining and method of making and installing same
07/18/1978US4101236 Sealing manhole cover for use on existing unsealed sanitary sewer manhole cover frames
07/18/1978US4101154 Locking device for well covers and the like
06/1978
06/27/1978US4097171 Manhole cover support ring
06/27/1978US4096705 Laying of underwater pipelines
05/1978
05/23/1978USRE29636 Manhole and method of manufacture
05/23/1978US4090365 Portal frame for trench box stack
05/16/1978US4089139 Segmented cylindrical reinforced plastic manhole structure
04/1978
04/25/1978US4085918 Composite construction form system
04/18/1978US4084462 Clamping means for a tool block in a vertical boring machine or the like
04/04/1978US4081970 Underwater structure
04/04/1978US4081969 Wall constructions
03/1978
03/28/1978US4080984 Sump and sump pump cover
02/1978
02/28/1978US4075803 Split duct terminator
02/28/1978US4075796 Adjustable height manhole with locking means
02/21/1978US4074538 Wall structures
02/14/1978US4073148 Precast element for the construction of trenched structures and the process related thereto
01/1978
01/17/1978US4068482 Retaining wall structure using precast stretcher sections
01/10/1978US4067659 Manhole closure assembly
01/10/1978US4067166 Retaining block
12/1977
12/27/1977US4064700 Marine engineering structure with wide base using a truss
12/06/1977US4061434 Reinforced concrete catch basin cover and lid
12/06/1977US4060993 Water seal packing for sealing water at the coupling portion of underwater structures
10/1977
10/18/1977US4054034 Method for casting concrete tanks in water
10/04/1977US4051570 Road bridge construction with precast concrete modules
09/1977
09/27/1977US4050839 Process for raising manholes
09/27/1977US4050254 Modular structures, retaining wall system, and method of construction
09/20/1977US4048766 Closure lid assembly for protective housings
09/06/1977US4045965 Quay structure
08/1977
08/02/1977US4038795 Concrete storage tank and method of making same
08/02/1977US4038789 Adjustable manhole frame assembly
08/02/1977US4038740 Vertical lathe with automatic tool change facility
07/1977
07/26/1977US4037423 Process for producing a connecting construction unit, such as a quay, container or platform
06/1977
06/28/1977US4031919 Articulated riser
06/21/1977US4030864 Apparatus for making inclined hollow concrete columns using sliding formwork
06/21/1977US4030851 Manhole closure including a two-way pressure relief valve
06/14/1977US4029425 Manhole extension
06/07/1977US4027902 Joint for culvert sections and the like
05/1977
05/17/1977US4023590 Manhole construction
04/1977
04/26/1977US4019760 Device for connecting conduit to a manhole or the like
04/05/1977US4015373 Manhole assembly with removable cover, especially for a carriageway
03/1977
03/22/1977US4013374 Cover for manhole structures
03/15/1977US4011728 Means for producing subaqueous and other cast-in-place concrete structures in situ
03/01/1977US4010051 Thermosetting resins
03/01/1977US4009545 Apparatus for pipe-to-manhole sealing
02/1977
02/22/1977US4008577 Cut and cover construction of subway with utility chamber and air conditioning with minimum street traffic disturbance
01/1977
01/25/1977US4004429 Deep underwater sphere
01/04/1977US4000953 Concrete catch basin with spring retained manhole cover
01/04/1977US4000622 Shoring structure for embankments
12/1976
12/28/1976US3999398 Retaining walls
12/28/1976US3999394 Precast ribbed arch subway structure and method
12/21/1976US3998061 Formation of cavities in the bed of a sheet of water
12/14/1976US3996751 Method of blasting and reinforcing rock cavities
11/1976
11/30/1976US3994520 Locking device for roadway manhole cover
11/09/1976US3990252 Earthworks consolidation system
11/09/1976US3990249 Method and an apparatus for producing a draining channel
10/1976
10/12/1976US3984989 Means for producing subaqueous and other cast-in-place concrete structures in situ
09/1976
09/28/1976USRE28977 Method for the construction of a retaining wall
09/21/1976US3981038 Bridge and abutment therefor
09/14/1976US3980311 Joint assembly for vertically aligned sectionalized manhole structures incorporating D-shaped gaskets
09/14/1976US3979976 Ring expander device
08/1976
08/31/1976US3977199 Shoring structure for embankments
08/31/1976US3977124 Man-hole assembly
08/24/1976US3975870 Floor hatch
08/17/1976US3974605 Wall structure and swimming pool construction
08/17/1976US3974603 Concrete wall bracing method and apparatus
08/17/1976US3974599 Underground reinforced plastic enclosure
08/10/1976US3973856 Manhole closure assembly
07/1976
07/27/1976US3971223 Protection method
07/20/1976US3969847 Combination manhole closure assembly and separate support ring
07/13/1976US3968601 Handhole to receive and locate connections of underground secondary electrical power cable terminations
07/13/1976US3968600 Adjustable manhole cover support structure
06/1976
06/01/1976US3959938 Wall system of corrugated sections
05/1976
05/25/1976US3958313 Method, apparatus and product for improved pipe-to-manhole sealing
05/11/1976US3955836 Outlet for underfloor and concealed installations
05/04/1976US3953979 Concrete wall blocks and a method of putting them together into a retaining wall
05/04/1976US3953976 Self-supporting wall
04/1976
04/27/1976US3952524 Pipe laying method and apparatus
04/20/1976US3951384 Impact absorbing device
03/1976
03/02/1976US3941556 Gas control system for a sanitary landfill
02/1976
02/17/1976US3938545 Access cover with moveable attaching devices for underground pumping stations and other installations
02/17/1976US3938285 Manhole and method of manufacture
01/1976
01/06/1976US3930739 Manhole frame with adjustment screws
01/06/1976US3930372 Method and arrangement for controlling the position of an underground manhole assembly