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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,...
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7571570 |
Recessed plaster collar assembly
A plaster collar assembly having a first ring, a second ring secured to the first ring, and a mechanism arranged at an outer periphery of at least one of the rings for axially displacing the first...
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7549256 |
Modular window well and associated accessories
A window well assembly includes U-shaped walls that have smooth interior and corrugated exterior surfaces, and are formed from polyvinyl material. The walls have coextensive ribs juxtaposed along...
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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...
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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...
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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...
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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...
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7478502 |
Appliance doors
A structural panel, such as an appliance door, includes first and second frame members each having inner and outer peripheral edges with the inner peripheral edges each defining an opening. At...
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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...
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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...
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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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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 )...
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7428800 |
In-ground shelter
An improved shelter of the type having a front wall, a back wall, two opposing side walls, a bottom and a top defining a substantially rectangular box with an opening defined in the top, a flat lid...
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7356968 |
Polymer composite basement door
Cellar or bulk head doors having sidewalls are provided which are made of a polymer and which are strong, durable, attractive, virtually maintenance free, easily assembled, have connection and...
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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...
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7337584 |
Insulated ceiling hatch
A ceiling hatch employs a frame having an upper edge and a lower edge and a passage bounded by a sidewall passing therebetween, the passage extending from the lower edge to the upper edge and...
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7331144 |
System and method for operating a barrier with a timer
A pause profile is stored in a memory. An ambient condition is determined. The pause profile is accessed in the memory and a pause time is determined based upon the measured ambient condition. A...
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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...
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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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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...
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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...
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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...
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7178290 |
Manhole cover having a locking crossbar
A pit cover includes a casing, a cross bar and cover plate. The casing has a peripheral wall in the general shape of a rectangle, with open opposite ends and. The cross bar is coupled to and...
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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...
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7089704 |
Attic hatch
A prefabricated attic hatch includes a frame comprising an outer frame and an inner frame. The inner frame encloses a central insulating panel which is fabricated from metal-skinned insulating...
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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...
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7028431 |
Fire-resistant door
A fire-resistant, aluminum, cementitious-material-free, insulation-free door adapted to prevent the spread of fire and heat passing therethrough, consists of: a door frame, a door hingedly mounted...
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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...
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6966153 |
Insulating cover
A thermal insulating cover is presented. The cover includes a top, a plurality of sides extending from the top and a wide base perimeter extending from the plurality of sides. The device may be...
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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...
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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...
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6944989 |
System and kit of components for winterizing trees
A system and kit of components for winterizing plants and trees, where the invention comprises a skeletal frame formed by plural first tubular members, each having an upper end and a lower end....
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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....
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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...
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6854922 |
Locking cover for a soffit manhole
A locking cover is provided for a manhole or other access opening formed in a soffit or the like, such as an access manhole formed in an otherwise enclosed overhead cell or chamber within a...
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6851225 |
Device for equalizing changes in level between a ground area surface and a frame for a manhole cover, and a method for mounting the device
A device for equalizing changes in level between a ground area surface extending over a ground structure and a frame for closure of an installation projecting into a ground structure therebelow,...
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6848226 |
Access panel
An access panel for providing access to cables, services or the like through an opening in a floor having a floor covering, is disclosed. The access panel includes a floor frame ( 10 ) located in...
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6810629 |
Window well cover apparatus
An apparatus for serving as a cover for a window well associated with a window of a building and including a frame member having two vertically spaced apart inwardly extending projections, a...
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6749363 |
Aircraft service pit lid hinge
A pit lid assembly is formed for a subsurface aircraft servicing pit and includes a lid frame formed with a flat, upper deck, a pit access opening surrounded by the deck, and a hinge pocket defined...
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6722813 |
Road network device with articulated cover
A rigid anti-theft cover ( 3 ), for covering of shafts leading to underground mains-water systems, hingedly mounted on a frame ( 1 ) with two side edges ( 32 A, 32 B) bearing two projecting parts...
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6701676 |
Attic access apparatus
An attic access apparatus has a housing with a passage open to the attic and a door located in the passage for closing the passage. Insulating material in the passage above the door limits heat...
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6688072 |
Cover for riser section and method of using cover for anchoring riser section in concrete
A riser section and cover is disclosed. The riser section has a smooth cylindrical sidewall surface, a tapered end and a channel end, a removable anchor tab and bosses and ribs on the inside of the...
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6688046 |
Assembly of a safety rail for an access hatch
A safety rail assembly for an access hatch with a hatch frame which defines an opening; extends around at least a part of the hatch frame and includes guard members interconnection members which...
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6655093 |
Riser section and cover therefor
A riser section and cover is disclosed. The riser section has a smooth cylindrical sidewall surface, a tapered end and a channel end, a removable anchor tab and bosses and ribs on the inside of the...
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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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6625933 |
Attic cover
An attic cover apparatus comprising a base, an insulating member, a panel, and a flange creating a decorative frame.
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6616371 |
Cover for in-ground meter enclosures used in traffic loading conditions, and method for making
A cover for in-ground meter enclosures used in traffic loading conditions employs a relatively thin plate member formed of a ductile iron alloy and is dimensioned to extend laterally across a top...
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6616370 |
Panel inspection plug and method for assembling and using same
Method and assembly for inspecting the contents of a connection box or a utility system such as a sewer, telephone electrical, gas etc. via an inspection plug. The inspection plug provides an...
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6601352 |
Insulated attic access cover
An insulated attic access cover which is easily installed from below the attic access opening and includes a flat panel with a central insulation portion, flanges which carry a seal and attachment...
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6588810 |
Closing device with selective locking
A closing device with selective locking for closing a frame includes a roughly flat lid selectively applied to the frame, a lock connected with the lid, and a key which has a socket and an arm, one...
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