Matches 151 - 200 out of 351 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
5525006 Flush mount well protector  
The invention is a monitoring well cover with a generally planar lid, a generally cylindrical rim, and one or more generally cylindrical skirts. The lid has threads on its side to secure the lid to...
5511898 Moveable manhole cover  
A manhole includes a carriage mounted on the underside of the cover that cooperates with a supporting guide channel located across the mouth of the manhole. the guide channel can be rotated to an...
5511897 Method of sealing a manhole riser and a catch basin and apparatus for same  
A method and article for sealing a manhole riser and a catch basin. The method is an economical process whereby elastomeric bands are placed around a manhole riser and/or a catch basin and...
5507590 Cover assembly for manholes and the like  
A cover assembly for manholes and the like has a hinged cover which is urged closed by gravity and open by an opposing bias force acting between the cover and cover base in such manner as to reduce...
5507600 Reflecting body having high luminance  
Landings and/or manhole covers formed of a plurality of plate bodies each having a plurality of apertures. Utilizing the plate bodies, a reflecting body having high luminance can be simply and...
5496128 Adjustable fastening band for a manhole chimney seal and method of using  
An internal fastening band for an internal manhold chimney seal is disclosed, as well as a means for expanding the band and a means for removing the band. One end of the band is narrower than the...
5482400 Segmented adjustment riser  
A segmented adjustment riser for maintenance holes has a plurality of similar elongated one-piece segments. Each segment has two opposite ends provided with respective interengaging formations, and...
5470172 Manhole adjusting extension ring section  
A molded plastic extension member for use in increasing the height of manholes, or catch basins when surfacing or resurfacing a roadway is described. A wedge to adjust the angle of the catch basin...
5462385 Manhole cover tool  
A hand-operated tool for removing and replacing a wide variety of different manhole covers is disclosed. The tool includes a handle which extends upward from slip-resistant feet. A collar with...
5458435 Opening and closing apparatus for manhole cover  
An opening and closing apparatus for a manhole cover includes a supporting member 2 having a number of elongated holes 1, two hook rods 4, each having a lower hook, and extending vertically through...
5451119 Method and apparatus for adjusting the height and slope of a manhole frame and cover  
A barrel-shaped manhole frame for receiving a manhole cover is provided with an inwardly directed peripheral flange at its lower end having circumferentially spaced inclined grooves to receive...
5431553 Manhole seal molding apparatus  
An apparatus is provided for installation in a manhole assembly. The mold apparatus is filled with a sealing material to establish a solid bond that blocks inflow of fluids at the joint between...
5423627 Light weight vault lid  
The lid is made up of a beam assembly and a rim assembly assembled around the beam assembly. The rib assembly is made up of a plurality of channel shaped beams assembled flange to flange. The beams...
5412911 In-floor access pit frame and cover system  
An in-floor access pit unit for use in a floor having a flooring of a predetermined thickness thereon. The access pit basically comprises a rigid liner, a lower frame, an intermediate frame, a...
5404676 Watertight pit cover  
A subsurface chamber formed by a pit and buried beneath a surface across which aircraft travel is provided with an effective sealing system at its opening. The opening to the chamber is formed by a...
5403116 Booted road plate  
A booted road plate includes a plate and an anchoring device appended to the underside of the plate. The plate is sized to cover an excavated repair area to allow vehicular and pedestrian traffic...
5401114 Manhole ventilation insert with duct shut-off device  
In order to prevent the penetration of surface water into a shaft or manhole, the latter is fitted with an insert (5) consisting of a dish-shaped section (9) of impermeable material and the...
5382113 Manhole Aqua-Blok inflow protector  
An Aqua-Blok that fits into a frame or cone of a manhole directly beneath the cover, in the frame below the cover or within the cone to catch water that seeps into the manhole. Aqua-Blok is a...
5378078 Manhole cover  
The improved manhole cover of this invention provides a strong yet lightweight access cover structure made from a series of radially staggered ply layers bonded above and below a homogenous...
5366317 Manhole cover apparatus and method  
A manhole cover apparatus including a collar defining an opening with an inner perimeter is provided with a pivotally mounted cover having an outer perimeter greater than the inner perimeter of the...
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...
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...
5340232 Manhole cover  
The invention concerns a manhole cover with a frame (1) and a grating (3) or cover fitting flush with the frame (1). In order to secure the cover (3) in such a way that it can be easily removed and...
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...
5328294 Manhole casting setting fixture  
A manhole casting setting fixture includes a pair of spaced parallel frame rails connected by a plurality of transverse struts. Four loop handles are secured at opposite ends of the frame rails to...
5326188 Anchor for manhole cover support  
An anchor for securing a manhole cover support to a manhole frame is shown. Dovetail-shaped receptacles are formed at a plurality of locations about the manhole cover support. A plurality of anchor...
5324135 Locking cover  
A lockable cover for a ground opening such as a manhole or catch basin. The cover has a lock including a reciprocating locking bolt mounted to its underside for engagement of a lip of a surrounding...
5318376 Manhole frame  
A manhole frame having a top with an opening therein defining a cover seat area, a side wall extending downward from the top to an inwardly extending lower flange, the exterior of the side wall...
5316407 Manhole cover support  
A manhole cover support cooperable with a manhole frame for raising the elevation of a manhole cover utilizes a gapped support body positionable between the frame and the manhole cover and...
5312202 Access cover assembly  
An access cover assembly (10) has a cover member (12) and a frame member (14). The cover member has twelve vertical wall sections (36) with adjoining vertical edges (38) and twelve canted surfaces...
5308189 Gripping device for retaining a ring member supporting a manhole cover  
The present invention is directed to a gripping system for holding a supporting ring member adapted to support a manhole cover in a tubular member having a peripheral horizontal shoulder. The...
5308188 Ramp for temporarily elevated utility access hole  
A protective ramp for placement around a temporarily elevated underground utility access hole support. The ramp includes a ramp member having a top surface and an obverse bottom surface, and an...
5299884 Water lock method and apparatus  
A watertight chimney assembly prevents infiltration of water in the region between a manhole cover support frame and a concrete manhole assembly. The watertight chimney, in one embodiment, is...
5295535 Cover for an observation well  
Contamination of the sampling portion of an observation well is avoided while providing axial float between the observation well cover and observation well liner by this observation well cover. The...
5261761 ABS manhole adapter serving as a coupling-collar of a resilient connector assembly used in making a connection between a precast reinforced concrete manhole and a PVC sewer pipe  
When a PVC sewer pipe is to be connected to a precast reinforced concrete manhole at a designated hole location thereof, this designated hole is made large enough to later accommodate grout and an...
5253952 Stabilizer for underground valve housing  
A ground engaging hollow, disklike support mounted coaxially about the top end of the upper section of an underground valve box and having a conical top wall which sheds water to the outer edge of...
5246044 Fuel dispenser pump containment apparatus  
This invention provides an apparatus for containing and terminating fuel leaks at a dispenser pump island. The dispenser containment system of the subject invention comprises a substantially...
5240345 Manhole sealing assembly  
An external manhole sealing assembly for sealing the joint to a manhole frame and a manhole casing which includes a resilient sleeve mounted on the manhole frame and the manhole casing to span the...
5240346 Manhole having a splayed rib ring formed at underside of the lid thereof  
A manhole having a splayed rib ring extending from under a lid, an annular supporter having a beveled underside extending around the opening of a ring seat, and an insulation hood attached to an...
5230583 Method of sealing openings in manhole covers using a pick hole plug  
A pick hole plug for sealing an opening in a manhole cover and the process for using such plug. The plug is formed from a soft uncured rubber polymer which has a larger diameter than the hole which...
5217052 Containment assembly for fill pipe of underground storage tanks  
An assembly intended for use on underground storage tanks provides ready access to a fill pipe from ground level. At the same time the assembly serves as a spill containment means for accidental...
5201600 Manhole sealing apparatus and method  
An apparatus and method is provided for providing a mold that can be filled with sealing material to establish a barrier seal on top of a manhole to block unwanted inflow of groundwater into the...
5201151 Manhole rim and cover assembly  
A manhole rim and cover assembly includes a rim formed with an annular upwardly projecting lip extending around its central opening with a shoulder projecting radially inwardly from the lip at a...
5197510 Apparatus for checking back pressure  
Apparatus for monitoring gas pressure in a drain line including a housing, a liquid trap within the housing interior, a liquid collector for collecting liquid displaced from the trap when gas...
5195590 Method and apparatus for protecting an environmental monitoring well head  
An environmental monitoring well housing and protection method. A housing is disposed over the end of an environmental monitoring well pipe and set in concrete along with the well pipe itself so...
5184422 Swing away manway assembly  
A swing away manway assembly for a tubular fluid conveying system having a manway opening in a first horizontal plane, the assembly including a cover disposed in a second parallel horizontal plane....
5184912 Split-ring manhole cover support  
The grip of the collar element of an existing circular manhole cover-supporting structure, such as a circular manhole frame, on a split-ring style expansion-joint-fitted manhole cover support...
5160064 Fuel containment cover assembly  
A fuel containment cover assembly comprising a fiberglass skirt with cast iron inserts molded into an integral unit. The inserts are located on the outer perimeter of the skirt and determine the...
5160213 Covering for a ground opening  
A covering for a ground opening includes a frame in which a cover can be inserted. The frame has a recess for receiving a retaining web shaped onto the edge of the cover. A niche with a sloping...
5123776 Plastic fillable manhole cover with penetrating handles  
A manhole cover comprises a top having a top surface and an edge portion, a depending portion having a sidewall and a bottom surface, and an interior chamber. The manhole cover is fabricated from a...
Matches 151 - 200 out of 351 < 1 2 3 4 5 6 7 8 >