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7581361 |
Plug for temporarily but securely covering holes in floor- or deck-type building structures
A plug which covers and protects a hole which has been drilled in a concrete floor in a commercial building. The plug has a head that is larger than the hole and a base having a cross-sectional...
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7574831 |
Riser pan component for on-site waste systems
An integrally formed riser pan member for use as a modular component within an access passageway for an on-site waste disposal system, such as a septic tank, to receivably retain a secondary cover...
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7571938 |
Non-leak pool fixture and method for implementing
An improved sidewall fitting is disclosed with a fitting body and one or more flanges disposed about the fitting body. Plaster catches disposed along a face of one flange and positioned...
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7451570 |
Casting riser pan
A casting riser pan for defining an access opening in a cast concrete structure, serving as a cast for a cover for closing the access opening, and serving as a seat for the cover. The casting riser...
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7361834 |
Electric handhole/pullbox access cover
A lightweight plastic cover for an electric handhole or pullbox having a plurality of vertical channels in a circular array at a radius about halfway from the center to the circumference. The...
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7225587 |
Cover system for septic tank
A cover system for septic tanks adapted to be attached to the a septic tank and provide access for repair and maintenance. The assembly includes a base which is embedded into the concrete and...
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7150290 |
Unitary concrete pumping station for aqueous waste submersible pumping applications
A unitary concrete structure pumping station useful in pumping waste fluids and the like during the passing of such materials from one part of a gravity flow waste system to another. This concrete...
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6986226 |
Manhole water seal-cap/diverter
A device prevents water from leaking into a manhole. The device includes a body having first and second portions that are integrally formed. The first portion extends along and above a periphery of...
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6968854 |
Manhole base
A manhole base or liner for directing the flow of liquid from a manhole inlet opening positioned in one of a plurality of possible locations in a manhole side wall to a manhole outlet opening in...
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6922955 |
Pre-cast dock leveler pit
A dock pit for a dock leveler mechanism comprises a pre-cast concrete body including integrally formed side, rear panel and front panels, all forming a continuous perimeter open therethrough to...
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6772782 |
Cable routing in wastewater lift station
A modular well for a wastewater lift station includes multiple well sections. Each of the well sections has at least one mating feature allowing it to be joined to at least one other well section...
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6743360 |
Manhole debris-catching system
A debris-catching system for preventing debris from falling into the pipe opening at the bottom of a manhole catch basin. The debris-catcher comprises two semi-circular halves hinged together such...
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6709064 |
Method and device for detaching or cutting out an embedded manhole frame
A method for detaching a manhole frame ( 7 ) that is embedded in a road surface, wherein the manhole frame ( 7 ) is cut horizontally starting from the inside, without significant exposure of the...
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6695002 |
Outside drop for manhole
A collar for supporting or protecting pipes on an outside drop adjacent a manhole is provided. A plurality of stacked collar sections can protect pipes comprising the outside drop. Alternatively a...
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6681801 |
Pumping station with efficiency increasing and backflow preventing structure
A pump station including a structure that includes at least one inlet chamber and at least one discharge chamber arranged on a different level. A separating wall is arranged within the structure...
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6651391 |
Shroud for septic tank access opening
A shroud for use in combination with a septic tank having an access opening and an access cover. The shroud surrounds the access opening and facilitates removal of the access cover covering the...
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6644342 |
Modular integrated wastewater lift station construction kit
A modular well for a wastewater lift station includes multiple well sections. Each of the well sections has at least one mating feature allowing it to be joined to at least one other well section...
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6601347 |
Method for manufacturing a ready-to-use catch pit
A method for making a catch-pit, such as the catch-pits often associated with underground pipeline junctions, manholes, or the like, where it is desirable to join a horizontal pipe with a...
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6401400 |
Industrial vault
This invention comprises reinforced industrial vaults with segmented knock-outs having a variety of shapes and orientations. The invention also comprises vaults having cast-in cable racks. The...
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6401409 |
Underground storm shelter
An underground storm shelter comprising a bottom section, expander section and a top section bolted together to form the shelter. The base section has a closed bottom while the top section has an...
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6386550 |
Subterranean coupler
A subterranean coupler for slidably receiving a pipe therethrough and for coupling the pipe to a subterranean vessel. The coupler is mountable to a reinforcing grid prior to the coupler and...
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6385913 |
Steel manhole
A steel manhole is provided which includes a steel box having a hole having a bolt hole and formed at an upper portion of the same, a height control pipe having a vertical longitudinal hole...
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6347781 |
Concrete hole former with embedded gasket
A hole former assembly used to form a reusable hole former assembly used during the construction of a manhole base. The hole former assembly of the present invention aligns the center of the formed...
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6321491 |
Bulkhead door seal
A bulkhead door seal is a sealing device that provides effective sealing of the interface between a bulkhead door assembly and a top of a concrete foundation wall to which it is attached. It...
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6309139 |
Manhole with extension wings
A manhole for a storm sewage system comprising a structure having at least two outwardly extending substantially vertical flat panels projecting outwardly from the exterior surface a predetermined...
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6226928 |
Caustic fluid blocking member in the base of a manhole
A base for a manhole or catch basin structure having an embedded plastic canal-bed liner and a corresponding blocking member or hood. The plastic liner has an annular, outwardly extending flange...
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6223475 |
Method and apparatus for lining manholes
A method and apparatus for providing a liner for manholes, drainage systems, sewer system and the like, wherein multiple layers of liner material are sprayed onto the mandrel and outer shell...
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6195944 |
Liner
A liner for a manhole, inspection chamber or the like comprises one or more sections moulded from synthetic plastics material. The or each section comprises inner and outer skins (2,3) joined...
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6173733 |
Enclosure for compact design backflow prevention device
An enclosure for a fluid flow control device of the type comprising a first valve positioned substantially vertically in a fluid flow pipe and a second valve positioned horizontally in a fluid flow...
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6135141 |
Low profile high capacity inside drop for a manhole
A system for joining an expansion line to a main line of a sanitary sewage or storm sewage system. The system of the present invention joins an expansion line to a main line while reducing the...
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6050050 |
Form in-place submersible pump containment
A method of upgrading an existing unprotected submersible pump area with secondary containment to prevent accidental release of harmful materials from contaminating the soil below grade.
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5979908 |
Pipe seal for concrete structures
Apparatus including an elastomeric gasket and a rigid holder therefor for resiliently connecting a sewer pipe in the wall opening of a concrete manhold to prevent leakage through the connection...
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5797221 |
Replacement manhole cover assembly
A replacement manhole cover assembly for an existing manhole having a fixed frame around the periphery of the manhole, the frame having an upper horizontal lip essentially flush with the...
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5752787 |
Base of a manhole having a canal-bed liner
A base for a manhole or catch basin structure having an embedded plastic canal-bed liner and a corresponding hood. The plastic liner has an annular, outwardly extending flange which becomes...
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5666768 |
Collapsible handle assembly for concrete covers
A housing designed to be anchored in concrete includes a handle and a pivot for moving the handle between an upstanding position and a generally recessed position with respect to the top of the...
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5655564 |
Septic system plastic distribution box with integrally fastened seal
A plastic fluid distribution box for installation in a subterranean system for waste water transport includes a first wall having an opening in the wall, and an elastomeric seal mounted in the...
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5645372 |
Form for construction of a catch basin
A form for construction of a catch basin including a water insert form that has a front insert wall, a rear insert wall, a pair of side insert walls and a concave bottom edge. The front insert wall...
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5595455 |
Transition collar
A resilient annular transition collar is provided for roadway structures, including manholes and catch basins, which acts as a flexible transition between the rigid structure or frame of the...
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5584317 |
Lined manhole and method of making same
A manhole base comprising a benching portion, an annular wall portion surrounding the benching portion and extending axially therefrom, the annular wall portion having inside and outside surfaces...
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5564855 |
Height adjustment ring for manhole cover frame
A stackable height adjustment ring for supporting a manhole cover frame upon a concrete manhole shaft liner has a ring body that is formed from plastic resin, e.g., scrap plastic. The ring includes...
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5544460 |
Multi-component fluid tank
A fluid-tight tank is composed of a plurality of separate components. Each component is preferably formed from cement and provided with an interior region having a circular cross-section. Each...
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5495695 |
Vaulted underground storage tank
An underground storage system for hazardous liquids having an inner fluid storage tank surrounded by a larger outer containment vault with sufficient space between to allow for visual inspection of...
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5396745 |
Habitable structure with water storage and distribution
A habitable structure has a ground-supported, water-impervious floor and upright foundation walls which together define an open top water enclosure. Flooring is supported on the foundation walls...
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5362174 |
Manhole cover
A manhole cover comprises a base and a cover. The base has a first inner rim provided with a first bevel while the cover has a second outer rim provided with a second bevel. When the base is joined...
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5360284 |
Precast concrete drain inlet
A drain inlet provides a hollow concrete shell and has a cylindrical bottom section and a square top section. A first opening in the bottom section includes a first lip formed on an interior wall...
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5345728 |
Sewer chimney coupling
A sewer chimney for connecting a surface branch sewer pipe to a deeply buried main sewer pipe having a fixture with an upwardly facing opening. The chimney is constructed of a plurality of precast...
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5344253 |
Adjustable manhole cover
An adjustable manhole cover support frame that includes a base unit, a top support unit telescopically arranged on the base unit and screw jacks interconnecting the two units permitting selectively...
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5328291 |
Locking manhole insert
A locking manhole insert to be placed under a conventional manhole cover to prevent unauthorized access to the manhole. The insert includes a plate-shaped disc with a plurality of locking radial...
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5303518 |
Lined manhole assembly and liner
A plastic liner for protecting concrete manhole interior surfaces from corrosion wherein the liner includes provisions for creating a strong mechanical lock between the liner and the interior...
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5299637 |
Concrete well
A concrete well having an upper axial portion (10) decreasing in width axially from a larger bottom cross section to a smaller cross section at an upper opening of the well. The well includes an...
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