Matches 1 - 50 out of 350 1 2 3 4 5 6 7 >
Match Document Document Title
7607858 Secure manhole accessway  
An enhanced security manhole cover is disclosed, comprising a frame, outer cover, inner cover, crossbar, saddle, eyebolt, and padlock. The inner cover, which closes the lower opening in a manhole,...
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...
7556055 Prevention of unwanted material accumulations  
In one embodiment, the invention provides a rupture disk assembly having a rupture disk and a rupture disk holder. The rupture disk holder has a first annular member downstream of the rupture disk,...
7540683 Subterranean conduit cover  
Provided herein are covers useful for covering the open end of an access conduit that may contain fluid control equipment. In one embodiment, a cover according to the invention comprises a...
7537413 Adjustable manhole cover apparatus  
An adjustable manhole cover apparatus designed to fill a gap of any size or shape between a manhole and a resurfaced road pavement. The preferred embodiment provides a plastic bag filled with...
7533499 Rough in box for use in protecting a plumbing drain line during pouring of concrete  
A form assembly for use with a rough-in floor drain line, extending from a ground location prior to the pouring of a concrete aggregate. A body is constructed of a plasticized material and exhibits...
7491010 Road manhole  
This road manhole comprises a frame ( 4 ) which delimits an opening ( 6 ) and which is provided with an internal collar ( 8 ) which extends radially inwards, a cover ( 10 ) which comprises a...
7484909 Reinforced composite manhole cover assembly  
A lightweight manhole cover assembly includes a cover and a base, with the cover including an inner surface having a plurality of ribs extending therefrom. The base includes an inner surface having...
7484908 Manhole cover security lock with controlled pressure release  
A controllably releasable security locking arrangement for a manhole cover allows a manhole cover to be locked into position but allows the manhole cover to rise up in stages upon development of...
7467910 Prefabricated structure made of reinforced concrete with an integrated removable handling system  
A method for manufacturing, transporting and installing on a building site a prefabricated structure made of reinforced concrete for the replacement of a structure such as a manhole, access...
7455474 Device permitting a plug or a cover to lock in a detachable manner onto a frame  
This invention is a device permitting a plug or a cover to lock in a detachable manner onto a frame. In accordance with the invention, the metal washer ( 9 ), interposed between the screw head ( 4...
7448512 Device for closing an opening, particularly a man hole  
A device for closing an opening, particularly a man hole. The device includes a frame and a cover articulated to the frame around a first axis by a hinge. The device also includes a locking...
7438498 Security system for sewage, aqueduct, telephony and energy caps  
Security System for Sewer, Aqueduct, Telephone and Energy System Manhole Caps or Covers including an electromechanical cover ( 1 ), on the surface of which is placed an electromagnetic crane ( 2 )...
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...
7347644 Multi-use adapter ring for stackable riser components for on-site waste systems  
A multi-use adapter ring for converting the compatibility of an access opening of an underground on-site waste or drainage facility tank surface or component so as to receive a lower end of a riser...
7347070 Locking access box cover  
A locking access box cover includes an access box cover having a key aperture and a locking mechanism coupled to the access box cover. The locking mechanism includes a base plate, a guide plate...
7341398 Lift-assisted manhole cover  
A lift-assisted manhole cover assembly with a flush surface and external pivot shaft. The cover includes a mounting tab that extends beyond the general periphery of the cover. The mounting tab may...
7303354 Temporary manhole cover  
A temporary cover for manholes to provide a platform for maintenance workers when operating valves of underground utility systems. The cover comprising a circular outer rim dimensioned to fit into...
7293937 Cover arrangement  
A cover arrangement for a surface drainage device or similar hollow body is provided that is adapted to be installed in the ground and to be opened. This comprises a rectangular frame to be...
7283055 Electrified cover safeguard  
A warning device that turns on a warning light and or a warning sound to indicate when a manhole cover or a service box cover or a metal pole for lights, traffic lights, transformers or others has...
7263746 Expansion ring assembly with removable drive mechanism  
An expansion ring assembly for sealing a gasket within an opening in the wall of a structure, the assembly including a drive mechanism having a pair of block members each having a threaded bore,...
7243515 Locking mechanism  
A locking mechanism which includes a locking member which is movable between a locked position and an unlocked position, a retaining device which is movable between a first position at which...
7201534 Apparatus and method to secure manhole accessways  
A manhole access way security apparatus and method for using the security apparatus are disclosed. The security apparatus includes an insert, at least one locking pin and a locking mechanism each...
7201533 Sewer grate locking mechanism and method of installing same  
A conventional sewer grate has a locking mechanism for preventing removal of the grate from its mounting frame by unauthorized persons. The locking mechanism includes a grate hold-down device, a...
7201532 Method and device for adjusting height of manhole  
A method and a device for safely and efficiently adjusting the height of a manhole freely allowing the addition and removal of a height adjusting member at any position. The method and device may...
7171994 Spillage containment system and kit for underground storage tanks  
A matter-isolating system for use in combination with an underground storage tank assembly comprises primary and secondary spillage containment assemblies and a double-walled manhole assembly. The...
7165911 Manhole cover riser assembly  
A riser assembly for supporting a manhole cover is placed within a manhole frame for raising the height of the manhole cover to pavement level. The riser assembly includes a circular frame formed...
7163352 Utilities access closure  
A concrete lid for an in-ground utilities box includes a plastic reinforcement structure filled with concrete. The plastic reinforcement structure includes one or more plastic sidewalls that...
7160051 Closure device  
A fixed frame ( 4 ) and a covering element ( 6 ), the frame ( 4 ) defining a frame plane (P—P). A first latch ( 30 ) has two latch surfaces ( 32, 34 ) which cooperate and which are inclined...
7160050 Lockable manhole cover  
A manhole system including a cover, a frame receiving the cover and at least one security device securing the cover to the frame.
7153057 Securable temporary manhole cover  
An improved temporary manhole insert for securing a manhole passageway having a generally cylindrical structure with an inflatable, ring like tube encompassing the outer rim of the rigid portion of...
7150580 Tapered manhole sealing band and method for use  
The invention relates to a device and method for sealing a manhole structure. An elastomeric band with at least two different peripheries is sealingly engaged to at least two corresponding...
7144189 Locking cover for wells and underground tanks  
A locking cover apparatus for an opening in the ground is disclosed. The apparatus can be retro-fitted to an existing ground opening, or can be newly constructed ground opening fitted with the...
7141739 Sealing device and apparatus  
A sealing device effects a seal between a first member and a second member of a hermetic chamber. The sealing device includes a body having an elongated shape forming a closed loop. The body of the...
7108447 Construction castings with ball and socket connectors  
A joint suitable for construction castings having a frame and a lid or cover, such as manholes, grates, trench drains, hatches and the like, and construction castings incorporating the same. No...
7104722 Manhole cover  
A manhole cover includes a cylindrical manhole including manhole lugs, wherein the manhole lugs extend around the upper outer periphery of the manhole; the cover includes cover lugs, the cover lugs...
7094000 Socket hinged construction casting assembly  
A joint suitable for construction castings having a frame and a lid or cover, such as manholes, grates, trench drains, hatches and the like, and construction castings incorporating the same. No...
7080954 Ready-to-install road building apparatus and corresponding installation method  
An apparatus for covering a ditch includes a cover and girders having rabbets with projecting edges and flat-lying edges, the cover being placed on the rabbets. The apparatus has, before it is set...
7048468 Cover arrangement  
A cover arrangement is disclosed for a channel arrangement, a drainage channel, cable channel, shaft or similar hollow body that can be installed in the ground and opened, with a cover that can be...
7033489 Drainage assembly  
A drainage assembly ( 10 ) comprises a frame ( 11 ) for defining at least part of the surface boundary of a surface drainage aperture; and a grating ( 14 ) having formed therein a plurality of...
7025529 Self-leveling system  
Existing street sewers consist of an immobile concrete structure supporting a frame. The present invention, the self-leveling street sewer, comprises a frame that floats on the foundation of the...
6994489 Utility cover system  
A utility cover system for preventing water and silt leakage into a utility entrance within a road surface. The utility cover system includes an outer frame having an opening defined by an inner...
6966724 Manway and manhole particularly suited for negative pressure tank access ways  
Method of replacing a blind flange manhole cover of the type including a bolted on blind flange mounted on a bolting flange of a negative pressure storage tank manway with a manhole cover having a...
6957927 Removable aircraft servicing pit lid  
An aircraft servicing pit is provided that has a pit lid set within a supporting frame and hinged for rotation relative to a pit access opening. However, the pit lid is also completely detachable...
6955498 Circular conduit opening closure device  
The closure device for a circular conduit opening may be used to inhibit entry of debris and other matter into a conduit. The closure device may have an outer band, an inner band and a cover...
6953301 Lid assembly for facility access opening  
A cover assembly includes a support frame ( 20 ) fixed to a utility access hole and a rounded cover ( 10 ) fitted into the support frame. The support frame is provided in its upper portion with an...
6945731 Subterranean utility marker  
A flag assembly includes an elongated and rectilinear shaft having opposed end portions situated adjacent a ground surface. The shaft includes a banner attached to one of the end portions having...
6893186 Manhole cover  
A temporary manhole cover for protecting workers purging a sewer line from splattering waste includes a substantially circular cover member having an outer rim bordering a central indented portion....
6887012 Cover apparatus for an access pipe opening  
Cover apparatus for temporarily covering access openings for water, drain, manhole and overflow pipes when the access openings are exposed, such as during construction, to prevent dirt, dust or...
6886577 Product identification rings for below ground storage tanks  
A colored ring immovably associated with an inlet of an underground tank to enhance the identification of the material in the underground tank. The ring can be bolted to the inlet or engaged with...
Matches 1 - 50 out of 350 1 2 3 4 5 6 7 >