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US20120177440 MANHOLE SAFETY GRATINGS  
Systems and methods for making and using manhole safety gratings are described. Each safety grating includes a plate that has a first surface, a second surface, and a perimeter edge that extends...
US20100329782 Utilities Access Closure  
A concrete lid for an in-ground utilities box includes a reinforcement structure filled with concrete. The reinforcement structure includes a plastic frame and one or more reinforcing trusses that...
US20130129418 INFLOW DISH  
A two piece inflow dish assembly for installation in an enlarged manhole opening to prevent debris from entering the manhole to clog the sewer system and to permit the inflow dish assembly to be...
US20130101347 Storm Grate Locking Device  
A locking device for a storm grate to prevent theft or vandalism by unauthorized individuals. The device typically includes an upper plate, a positioning frame, at least one coupler nut, and a...
US20140286703 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...
US20120073106 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...
US20100296865 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...
US20120114414 MANHOLE COVER AND METHOD FOR MANUFACTURING SAME  
Provided are a manhole cover and a method for manufacturing same, wherein the manhole cover maintains a strength and weight the same as those of conventional manhole covers made of cast iron,...
US20110222963 MANHOLE COVER DEVICE  
A rubber manhole cover, suitable for attaching to a top of a metal manhole lid, includes at least two bonded layers of rubber material of differing properties, including a bottom layer of a first...
US20130121763 MANHOLE, ROADWAY AND WALKWAY REPAIR  
A method for repairing roadway and pathway defects utilizes a filling material and a primer. The method calls for applying the primer to an edge of the defect; pouring the filling material into...
US20090252552 Supplemental cover apparatus and method for access openings  
A supplemental access cover is adapted to cover an access cover. The supplemental access cover includes a layer of material having a thickness in the range of 0.01 inch to 1.5 inches, and an...
US20120251239 INFLOW AND INFILTRATION CAP AND SEAL BARRIER  
An apparatus and method is described for providing a water impenetrable barrier between a cone and support frame of a manhole system. The apparatus includes a barrier, cap, and seal that restricts...
US20070116518 Self-sealing internal manhole chimney seal  
An assembly internally seals a manhole against infiltration of water. A pleated sleeve, made of an resilient material, includes a first and second sealing sections at opposite ends. The first...
US20130011194 MANHOLE COVER OPTIMIZED FOR MANUFACTURING  
A manhole cover is made of a fiberglass reinforced saucer-like shell that is filled with concrete. The interior surface of the shell is rough and the shell has a maximum thickness of 5 mm. An...
US20080003056 Manhole insert & tether locking apparatus and method  
A watertight manhole insert and tether locking apparatus and method of use designed to prevent unauthorized entry into a sanitary sewer or other closed drainage system through a manhole closed by...
US20120020728 HINGE ASSEMBLY AND CORRESPONDING ROAD DEVICE  
This hinge assembly comprises a lid with a covering web and a hinge adapted for enabling an angular movement of the lid between an open position and a closed position, the hinge including a first...
US20140270943 MANHOLE AND SEWER BASIN COVER  
A cover prevents asphalt, gravel and other debris from falling into the basin during construction or paving by covering the manhole cover or basin with a thin metal plate. The cover can be made in...
US20130089373 SYSTEMS AND METHODS FOR VENTING GAS IN THE EVENT OF AN EXPLOSION IN A SPACE COVERED BY A MANHOLE COVER  
A closure is adapted to limit damage from a gas explosion in an underground space. The closure includes a telescoping sleeve having a plurality of vents extending radially through the sleeve. The...
US20070223997 Covered Plastic Lock  
The invention relates to a cover for a surface drainage device or similar hollow body that is to be embedded in the ground and to be opened. The cover comprises an upper surface over which...
US20070237580 Municipal Casting Frame and Method of Manufacturing Same  
A municipal casting frame is provided with cast nut retainers that allow the frame to be used with or without a bolt-down cover. The frame defines one or more bolt holes of sufficient dimension to...
US20110148647 Manhole Security Device and Methods Thereof  
A security device for detecting the position of a manhole cover includes a pinger device, such as an acoustic pinger, that transmits a signal in the direction of the expected position of the...
US20120213581 FASTENER FOR STREET IRONWORK, ASSEMBLY, STREET IRONWORK AND CORRESPONDING METHOD  
The present fastener (36) for street ironwork includes a fastening or locking element (56). The fastener (36) includes a retaining foot (60) suitable for removably connecting the fastener (36) to...
US20090255183 SELF-LOCKING MANHOLE COVER  
A manhole cover having an integrated locking system that is self-locking and easy to open. The device includes a cover plate adapted to rest on a manhole cover support surface of a manhole frame...
US20090060654 LID STABILIZING APPARATUS  
The lid stabilizing apparatus is principally directed to a structure which will resist a force on a lid which will tend to dislodge the lid from the structure which it covers. Of particular...
US20140334876 EXPLOSION MITIGATING COVER  
A manhole cover assembly configured to behave as a relief valve in an explosion event, opening so that fluid, such as air or explosive gas, may vent from an underground area. The manhole cover...
US20090074509 ANGLED MANHOLE SEALING BAND AND METHOD FOR USE  
The invention relates to a device and method for sealing a manhole structure. A band with a relatively rigid angled corner engages the upper margin of a manhole structure. Adhesives may also be...
US20080213043 PICK HOLE GUARD FOR MANHOLE COVERS  
Pick hole guards are provided for use in guarding pick holes on manhole covers. In some embodiments of the present invention, the pick hole guards can have a base, biasing member, and guard...
US20130108363 Trench Cover  
A trench cover comprising a main body arranged to cover or partially cover a trench, in use, and retainer means operable to resist lateral movement of the cover, in use, the retainer means...
US20100028077 Manhole Cover Stop Mechanism  
A stop mechanism advantageously combined with a manhole cover includes a holder body having a passage which slidably receives a stop member able to be cammed in and out upon advance or retraction...
US20070154259 Covering for an access aperture, and related assemblies  
A covering (10), for an access aperture, comprises a pair (11, 12) of cover plates, of unequal sizes, that are positionable one adjacent the other along a line of juxtaposition (14) to define a...
US20090324328 MANHOLE COVER SECURITY AND REMOVAL  
A manhole cover includes a security device, preferably located beneath an upper surface thereof. A cover removing apparatus includes a magnetic element to hold the cover, when a pin of the...
US20090257823 Method and mechanism for opening and closing of manhole covers  
A cover for opening and closing a manhole includes a movable cover and a base cover, the movable cover and the base cover being connected to each other by a shaft manufactured from an aluminium...
US20070286676 TEMPORARY COVER ASSEMBLY FOR A VOID  
A temporary cover assembly for a void comprising a cover plate 209 configured to close an opening in the void and means 201, 202, 207 to releasably attach the cover plate 209 to a cover slab 105...
US20090180832 MANHOLE SYSTEM  
A manhole system that includes a manhole cover and a frame with at least one locking device for maintaining the manhole cover in place on the frame. The locking device is selectively movable...
US20150104253 Corrosion-Resistant Self-Locking Manhole Cover  
A corrosion-resistant self-locking manhole cover includes a cover plate adapted to rest on a manhole cover support surface of a manhole frame so as to be substantially flush with a top portion of...
US20120087724 Corrosion-Resistant Self-Locking Manhole Cover  
A corrosion-resistant self-locking manhole cover includes a cover plate adapted to rest on a manhole cover support surface of a manhole frame so as to be substantially flush with a top portion of...
US20130136537 MANHOLE COVER MANUFACTURING PROCESS AND MANHOLE COVER THUS OBTAINED  
A process for manufacturing a manhole cover having a thickness of at least 10 mm, and up to 80 mm, comprising the generation of a mixture of reagents able to generate a polymeric thermosetting...
US20120263527 COVER HAVING A WEAR-RESISTANT SURFACE AND METHOD FOR THE PRODUCTION THEREOF  
The invention relates to a cast-iron cover fitted with at least one traffic-bearing surface which in turn comprises at least segment-wise a wear-resistant layer constituted by chilling the cast...
US20110200388 Anti-Theft Device for Removeable Manhole and Gully Covers  
An anti-theft device for a removable manhole covers or the includes a fixed iron frame that is embedded in a mass of concrete surrounding the manhole and a removable iron gully cover having an...
US20090169298 Road plate securing assembly  
A road plate securing assembly for a roadway surface includes an assembly frame comprising a plurality of assembly frame members adapted for attachment to the roadway surface and each comprising a...
US20070081856 Method and apparatus for locking a manhole cover  
A manhole cover lock includes a lock body which is mounted to the cover and a lock arm mounted for rotation relative to the lock body. The lock arm is mounted to a pin which is positioned in a...
US20080044225 MANHOLE INSTALLATION AND REPAIR ASSEMBLY  
A manhole installation and repair assembly. The assembly has a first load carrying member and a second load carrying member. Each load carrying member has a midspan seat arranged substantially at...
US20080098662 Security Device  
The invention relates to a security manhole that is secured to the mouth of an underground pipe (4) including an edge (2) and a hinged cover (5) having rising cylinders (6), a peripheral sealing...
US20100054857 Secure Access Port System  
A secure access port cover system comprises a cover and an access tool. The cover includes a base and one or more lids that are locked and unlocked via manipulation of a mechanical locking system...
US20090123227 DUAL LIFTING MANHOLE COVER  
A one-piece, unitary manhole cover has dual lifting ports that drain through the outer circumferential edge of the cover. A lifting channel runs from the interior of the upper face out to the...
US20080063471 SWING-OUT MANHOLE COVER  
A swing-out manhole cover assembly having at least one ramp to facilitate opening and closing the cover. The manhole cover assembly includes a frame, a cover, a swing assembly and at least one...
US20140212216 PICK HOLE GUARD FOR MANHOLE COVERS  
Pick hole guards are provided for use in guarding pick holes on manhole covers. In some embodiments of the present invention, the pick hole guards can have a base, biasing member, and guard...
US20110311306 PICK HOLE GUARD FOR MANHOLE COVERS  
Pick hole guards are provided for use in guarding pick holes on manhole covers. In some embodiments of the present invention, the pick hole guards can have a base, biasing member, and guard...
US20100290835 TRENCH COVER  
A trench cover is described. Such a cover engages with the ground through curved surfaces. In this way multiple points of contact between the ground and the cover are provided which allows the...
US20090080972 DEVICE FOR CLOSING AN OPENING, PARTICULARLY A STREET MANHOLE  
The invention relates to a device for closing an opening, particularly a man hole. The inventive device comprises a frame (4) and a cover (6) which is articulated to the frame (4) around a first...
Matches 1 - 50 out of 76 1 2 >