Elevation Or Level Adjustment Patents (Class 404/26)
  • Patent number: 11217984
    Abstract: Precast utility enclosure aprons for buried utility enclosures that have an angled top surface to direct water, ice and debris away from the center of the apron and to limit damage to the apron and utility enclosure caused by impacts to the apron.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: January 4, 2022
    Assignee: HUBBELL INCORPORATED
    Inventors: Gregory Glenn Isaacson, Michael Edward Fisher, Jeffery Scott Huffstetler
  • Patent number: 10954649
    Abstract: A manhole cover assembly comprises a base frame, the base frame comprising a base body and a base flange extending laterally outward from the base body. The assembly further comprises a top frame, the top frame comprising a top body disposed annularly about at least a portion of the base body, a top flange extending laterally outward from the top body, and a lip extending laterally inward from the top body.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: March 23, 2021
    Assignee: Neenah Foundry Company
    Inventors: Ryan Bonell, Hassan Shokouhi
  • Patent number: 10923000
    Abstract: Disclosed is a simulator for training in environments confined and/or suspected pollution consists of a container having a base, a roof opposite the base, and short perimeter walls and long with at least one vertical manhole, a horizontal manhole and two safety exits to the outside. The two long perimeter walls delimit a plurality of internal compartments for the exercise of the personnel with equipment that create effects for the training activity, and at least one training activity control, command and management cabin with operator present. The internal compartments for the personnel training are at least partially separated by way of movable walls disposed transversely to the two long perimetral walls. The movable walls have adjustable passage openings through sliding partitions.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: February 16, 2021
    Assignee: ISTITUTO NAZIONALE PER L'ASSICURAZIONE CONTRO GLI INFORTUNI SUL LAVORO—INAIL
    Inventor: Luciano Di Donato
  • Patent number: 10731314
    Abstract: A system and method are disclosed for sealing an annular manhole riser ring assembly. A generally flat, bendable liner includes a flat strip that is generally conformably engageable with an interior circumferential surface of the riser ring assembly. An outer surface of the liner strip carries a plurality of spacer elements that form a void between the generally flat liner strip and the engaged inner circumferential surface of the riser ring assembly. An expandable tensioning device is operated to press the riser ring assembly against the circumferential surface of the riser ring assembly. A flexible bonding substance is introduced into the void and allowed to set to seal the riser ring assembly.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: August 4, 2020
    Inventor: Kenneth S. Barton
  • Patent number: 10550532
    Abstract: The invention refers to a lighting automatic system for pedestrian crossing and to a method of making the markings for the pedestrian crossings. The system comprises several lighting units sank in the asphalt made of a box (2)welded by a netting (11) fixed on the bottom of the hole made for the mounting of the lighting units, the box (2) having an external frame (5) and being closed with a detachable cap (4) equipped with a window in which a protection frame is fixed (6) of a piece made of safety glass (8), the cap representing the transversal marking of the pedestrian crossing, in the interior of the box (2) being a LED lighting unit (1) powered by a net or a photovoltaic plant (14) mounted on a pile (17) in the proximity of the pedestrian crossing, on the surface of the cap (4) being poured bitumen subsequently painted with reflecting painting, so that the glass (8) in the mounted state of the system, to be at the level of the roadway (10).
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: February 4, 2020
    Inventor: Adrian-Ionut Trifan
  • Patent number: 10407914
    Abstract: The present invention relates to a spacer for a prefabricated spiral staircase, which allows adjustment of a height of a gap between footboards for a prefabricated spiral staircase in multiple steps by using minimal disks, and a prefabricated spiral staircase using the same. The spacer for a prefabricated spiral staircase comprises a cylindrical pipe, a lower cap or upper cap, a disk, a height adjustment member, and a location determining member, wherein the height of the spacer is adjusted in multiple stages according to relative rotation between the upper cap and the disk or between the lower cap and the disk.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: September 10, 2019
    Inventor: Seonghwan Seo
  • Patent number: 10233609
    Abstract: A manhole cover assembly comprises a base frame, the base frame comprising a base body and a base flange extending laterally outward from the base body. The assembly further comprises a top frame, the top frame comprising a top body disposed annularly about at least a portion of the base body, a top flange extending laterally outward from the top body, and a lip extending laterally inward from the top body.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: March 19, 2019
    Assignee: Neenah Foundry Company
    Inventors: Ryan Bonell, Hassan Shokouhi
  • Patent number: 10161100
    Abstract: A manhole cover assembly has an inner cylinder and an outer cylinder. An upper ratchet mechanism extends axially and circumferentially about an outwardly facing surface of the inner cylinder. A lower ratchet mechanism extends axially and circumferentially about an inwardly facing surface of the outer. The lower ratchet mechanism is configured to mesh with the upper ratchet mechanism at one of a plurality of distinct ratcheting positions. A cover plate is disposed on one of the inner cylinder and the outer cylinder. The cover plate is at a first elevation when the lower ratchet mechanism meshes with the upper ratchet mechanism at a first distinct ratcheting position. The cover plate is at a second elevation when the lower ratchet mechanism meshes with the upper ratchet mechanism at a second distinct ratcheting position. The first elevation is different from the second elevation.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: December 25, 2018
    Assignee: 1128653 Ontario Ltd.
    Inventor: Benjamin Koop
  • Patent number: 10042395
    Abstract: A method for fabricating a laminated composite work piece includes providing a first layer of carbon fiber. The first layer extends continuously across the entire area of the work piece. A second layer is placed adjacent to the first layer. The second layer includes a first fiber material extending across a first portion of the work piece, and a second fiber material extending across a second portion of the work piece. The work piece is cured and provides a case component of an information handling system.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: August 7, 2018
    Assignee: Dell Products, LP
    Inventors: Simon Sim, Deeder M. Aurongzeb, B. Bryce Busby
  • Patent number: 9528258
    Abstract: A kit of materials to make a support for one or more manhole rings during a concrete pour around a prefabricated grease interceptor includes a base, a plurality of vertical supports, and a peripheral grid to surround a top of the prefabricated grease interceptor at a position to support a manhole seating ring. The vertical supports are long enough that they extend from the base to the peripheral grid for most grease interceptor installations or can be cut to size to position the peripheral grid.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: December 27, 2016
    Assignee: Thermaco, Inc.
    Inventors: Travis McBride, William C Batten
  • Patent number: 9340948
    Abstract: A controlled pressure release vault panel assembly is capable of functioning as a second, or auxiliary, relief port to allow the escape of fluid from the vault in the event of pressure build-up inside the vault or in an explosion event. The vault panel assembly may define an opening that includes a manhole cover assembly. The manhole cover assembly may also be vented, and may function as a primary vent. The vault panel assembly may include a retention assembly extending from the vault panel underneath a portion of the vault, enabling a limited range of motion of the vault panel for the escape of fluid and allowing the reseating of the vault pane on the vault once the pressure inside the vault approaches ambient pressures.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: May 17, 2016
    Assignee: EJ USA, Inc.
    Inventors: James R. Allen, Jeremy I. Johnson, Kevin J. Wright, Dean W. Reynolds
  • Patent number: 9121157
    Abstract: A manhole riser extension assembly including separate upper and lower spacer rings which are assembled utilizing tabs that extend downwardly from the upper spacer ring about the lower spacer ring, and locking elements in association with the lower ring that cooperatively engage and bear radially outwardly against the tabs, respectively, to urge and/or lock the tabs against an inner surface of the manhole frame bounding the manhole cover seat, or to penetrate the tabs and bear against the inner surface, to hold the assembly together and in place in the manhole frame, and such that a manhole cover is positionable in sitting relation on the lower spacer ring, bounded by the upper spacer ring for covering the manhole. Optional lift protections tabs can be provided at locations about the upper spacer ring, in position to be covered by paving material to supplement the holding of the assembly in place.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: September 1, 2015
    Assignee: Willerding Acquisition Corp.
    Inventors: Kenneth Michael Wasiuta, Scott R. Peters, Gary Bertolucci
  • Patent number: 9101214
    Abstract: Incrementally extendable telescopic mounting, the extension of which is determined by a guide lug, integral with a female element and moving inside a multi-segment cam-type guide system, laid out at the periphery of a male element, and by the relative positions of a single cylindrical arc shaped stop having a trapezoid cross-section and being laid out on one of the telescopic elements, the trapezoid perimeter bearing surface of said stop resting successively on a circumferential series of staged cylindrical arc shaped hollow stops laid out on the other telescopic element and preferably having the same angular length, the same radial depth and the same trapezoid perimeter and area as those of the single stop, said single and multiple staged cylindrical arc shaped hollow stops having preferably, within their respective telescopic elements, the same outer and inner diameters and, as their common center, the device axis.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: August 11, 2015
    Inventor: Philippe Max Rothschild
  • Patent number: 9011035
    Abstract: A system and method are provided for coupling a manhole cover to an underground utility box to support the manhole cover substantially flush with a ground surface such as a roadway. A holder couples to an underground utility box and includes upper and lower ends and a channel extending therebetween, and a support structure extending into the channel and defining an upwardly facing support surface. An adjustment member for coupling to a manhole cover is inserted within the channel, and includes upper and lower ends, and a passageway extending therebetween and communicating with the channel. The adjustment member is movably receivable within the channel to be seated on the support surface, and to define an adjustment space between the adjustment member and the holder. The adjustment member may thus be adjusted for accommodating a slope and elevation of a ground surface, and sealed with the holder after adjustment.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: April 21, 2015
    Assignee: Munro Ltd.
    Inventor: John Munro
  • Publication number: 20150104254
    Abstract: A portion of a street surface to be removed for access to a manhole cover is defined by placing a design mask on the street with a cutout overlying an electronic marker embedded in the street proximate the manhole. The design mask is oriented such that a larger cutout overlies the manhole cover, by aligning the design mask along an established direction. The design mask can be a template with a circular cutout, or a stencil with a ring cutout. When the marker is located proximate a curb line, the established direction may correspond to a normal from the curb line. A rectangular design mask can be oriented by keeping an edge of the design mask which is closest to a curb line parallel with the curb line. Alternatively, a compass heading may be used, and a pointer feature of the design mask can be aligned with the compass heading.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 16, 2015
    Inventor: Joe T. Minarovic
  • Patent number: 8920072
    Abstract: A drainage channel includes a first sidewall provided with a first rail member extending along a longitudinal axis of the drainage channel. A second sidewall extends along the longitudinal axis of the drainage channel with the first and second sidewalls at least partially defining an interior area of the drainage channel. A first locking insert is at least partially positioned within a first rail opening of the first rail member, with the first locking insert including a first insert opening. Further examples include methods of making a drainage channel.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: December 30, 2014
    Assignee: ACO Polymer Products, Inc.
    Inventors: Derek Humphries, James Allen McConnell
  • Patent number: 8905673
    Abstract: A manhole cover adapter system comprises an adapter assembly having a central passage and a wing structure which enables the system is to be embedded between pavement layers during installation. The manhole cover adapter further comprises an expansion joint assembly and, if required, an angular adjustment assembly for allowing uses in various construction scenarios upon various types of manholes.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: December 9, 2014
    Inventor: Nathan W. Kember
  • Publication number: 20140328622
    Abstract: A manhole riser extension assembly including separate upper and lower spacer rings which are assembled utilizing tabs that extend downwardly from the upper spacer ring about the lower spacer ring, and locking elements in association with the lower ring that cooperatively engage and bear radially outwardly against the tabs, respectively, to urge and/or lock the tabs against an inner surface of the manhole frame bounding the manhole cover seat, or to penetrate the tabs and bear against the inner surface, to hold the assembly together and in place in the manhole frame, and such that a manhole cover is positionable in sitting relation on the lower spacer ring, bounded by the upper spacer ring for covering the manhole. Optional lift protections tabs can be provided at locations about the upper spacer ring, in position to be covered by paving material to supplement the holding of the assembly in place.
    Type: Application
    Filed: May 5, 2014
    Publication date: November 6, 2014
    Applicant: WILLERDING ACQUISITION CORP. doing business as W B INDUSTRIES
    Inventors: Kenneth Michael Wasiuta, Scott R. Peters, Gary Bertolucci
  • Patent number: 8870490
    Abstract: The invention disclosed is an adjustable support adapted to support an access hatch frame for access to a sub-surface chamber or the like. The support has a lower frame member that at least in part defines a first aperture, the first aperture having or defining a first plane, the lower frame member having at least one upper interface surface. A similar upper frame is present that defines a second aperture, a second plane, and a lower interface surface. Upper frame member also has number of height adjustable mount points. The upper and lower interface surfaces define an interface plane. Rotation of the upper frame member, relative to said lower frame member on the interface plane, adjusts the relative angle of the two.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: October 28, 2014
    Assignee: Opus International Consultants Limited
    Inventor: Neil Watson Gumbley
  • Patent number: 8858114
    Abstract: A support apparatus for a frame of a utility access cover comprises an inner support member and an outer support member in telescopic engagement with the inner support member. The height and inclination of the support apparatus is adjustable by selectively positioning the first support member relative to the second support member and securing the first support member to the second support member with the fasteners.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: October 14, 2014
    Inventor: Chris Gaspar
  • Patent number: 8850753
    Abstract: Disclosed is an improved assembly for facilitating the elevated and leveled placement of a paver surface. Yet further disclosed are related methods of using the assembly.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: October 7, 2014
    Inventor: Ramin Tabibnia
  • Publication number: 20140169876
    Abstract: 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 assembly may include a manhole cover and a frame, and may be configured to limit movement of the manhole cover with respect to the frame in response to increased pressure on the manhole cover. In one embodiment, the manhole cover may include legs having angled surfaces adapted to substantially center or guide the manhole cover in the frame while the manhole cover displaces to release pressure. In another embodiment, one or more legs slidable within the manhole cover to enable configuring the manhole cover between a restraint mode and a removal mode.
    Type: Application
    Filed: July 12, 2013
    Publication date: June 19, 2014
    Inventors: Dean W. Reynolds, James R. Allen, Jeremy I. Johnson
  • Publication number: 20140037374
    Abstract: A system and method are provided for coupling a manhole cover to an underground utility box to support the manhole cover substantially flush with a ground surface such as a roadway. A holder couples to an underground utility box and includes upper and lower ends and a channel extending therebetween, and a support structure extending into the channel and defining an upwardly facing support surface. An adjustment member for coupling to a manhole cover is inserted within the channel, and includes upper and lower ends, and a passageway extending therebetween and communicating with the channel. The adjustment member is movably receivable within the channel to be seated on the support surface, and to define an adjustment space between the adjustment member and the holder. The adjustment member may thus be adjusted for accommodating a slope and elevation of a ground surface, and sealed with the holder after adjustment.
    Type: Application
    Filed: October 3, 2013
    Publication date: February 6, 2014
    Applicant: MUNRO LTD.
    Inventor: John Munro
  • Patent number: 8573883
    Abstract: A system and method are provided for coupling a manhole cover to an underground utility box to support the manhole cover substantially flush with a ground surface such as a roadway. A holder couples to an underground utility box and includes upper and lower ends and a channel extending therebetween, and a support structure extending into the channel and defining an upwardly facing support surface. An adjustment member for coupling to a manhole cover is inserted within the channel, and includes upper and lower ends, and a passageway extending therebetween and communicating with the channel. The adjustment member is movably receivable within the channel to be seated on the support surface, and to define an adjustment space between the adjustment member and the holder. The adjustment member may thus be adjusted for accommodating a slope and elevation of a ground surface, and sealed with the holder after adjustment.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: November 5, 2013
    Assignee: Munro Ltd.
    Inventor: John Munro
  • Patent number: 8540454
    Abstract: A manhole cover which has an upper body and a lower body coupled to each other to maintain balance, to endure loads applied from an external source in a stable manner, to protect the inside of the manhole from the ingress of rainwater, and to enable the upper body to be stably fixed inside the lower body.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: September 24, 2013
    Inventor: Jae Duk Lee
  • Publication number: 20130195549
    Abstract: A riser assembly and method for engaging the same to raise a manhole cover to be flush with an inclined paved surface after the application of an additional layer of paving material thereto. The riser assembly includes a first and second riser frame with a plurality of specially manufactured spacer blocks fixedly secured between them. The spacer blocks have progressively different height dimensions and sloped upper surfaces so as to create an angle between the first and second riser frames. The angle is complementary to the slope of the paved surface. The riser assembly includes an expansion device for adjusting the diameter of the second riser frame so that it frictionally engages the existing manhole frame. The fixed securement of the spacer blocks prevents relative movement between the first and second riser frames even when the diameter of the second riser frame is changed.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 1, 2013
    Applicant: AMERICAN HIGHWAY PRODUCTS, LTD.
    Inventor: Scott D. Fier
  • Patent number: 8490513
    Abstract: A cable gland and gasket ring assembly includes a gasket ring and a cable gland formed of a shell, a collar, a packing ring and a connection ring for securing a cable, or, a cable and a flexible conduit, to a junction box. The gasket ring is an annular member, having a first end face, a second end face opposing the first end face, a plurality of annular ribs concentrically arranged on the first end face and an annular convex portion located on the second end face. The connection ring has a stop flange segment, a first connection ring segment extended from one side of the stop flange for holding the gasket ring, an outer thread located on the first connection ring segment for fastening to a junction box, a recessed portion on the stop flange segment for receiving the annular convex portion of the gasket ring and a tapered inner surface located on the inside of the stop flange segment for stopping against a tapered outside surface of the packing ring.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: July 23, 2013
    Assignee: AVC Industrial Corp.
    Inventor: Jiun Wei Chiou
  • Publication number: 20130101348
    Abstract: An adjustable frame configured to receive a standard grate includes a plurality of threaded openings that may be threadably engaged with bolts to adjust an elevation of the frame. The threaded openings may be configured to have a desired thread pitch, which in turn dictates how much the frame may be lowered or raised with one full turn of the bolt. Optionally, threaded bushings may be installed into the frame to engage with the bolts.
    Type: Application
    Filed: April 4, 2012
    Publication date: April 25, 2013
    Applicant: 8 Seconds LLC
    Inventor: Shane Read
  • Patent number: 8382392
    Abstract: A multi-purpose adjustable quick expandable installment which can be quickly and finely adjusted and ascend or descend freely, by a snap design which adjusts ascending or descending with a slope principle, based on a mechanical principle that a force is constant if acting on a same area and an opposite force compensates with the force. Through a structure which follows the law of action and reaction to compensate with a sliding force which occurs naturally, a stable movement without moving accidentally is formed.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: February 26, 2013
    Inventor: Yeu-Chuan Liao
  • Patent number: 8182171
    Abstract: A method for renovating a well curb by lifting it to a first position, whereafter a compressible device is positioned around the well curb. Hereafter the well curb is lowered to a second position so that the compressible device is abutting the upper edge of the well, whereafter a casting material is injected into the cavity between the surface dressing and a filling around the well. Finally the well curb is lowered to a third and final position. Also, a compressible device for use in the method.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: May 22, 2012
    Inventor: Bjarne Henning Poulsen
  • Publication number: 20110243658
    Abstract: An apparatus for repairing an existing spill containment manhole operably associated with an underground fuel storage tank. The apparatus includes a containment vessel for containing fuel spilled during filling of the underground fuel storage tank. A major portion of the containment vessel is adapted to be inserted into an existing spill containment manhole. The containment vessel includes at least one wall that surrounds an existing pipe section operably associated with the underground fuel storage tank when the containment vessel is installed. The at least one wall has an inner surface and an outer surface. Preferably, the containment vessel includes an upper annular flange that extends over and surrounds a portion of an existing cover rim of an existing spill containment manhole thereby isolating an upper portion of the containment vessel from an upper portion on the existing spill containment manhole when the containment vessel is installed.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Inventor: James L. Lawrence
  • Publication number: 20110222964
    Abstract: A manhole includes a frame and plug, which moves backward relative to the frame, to ensure the plug reaches a proper closed position in the frame. A first end of a self-locking arm of the structure is pivotally mounted to the frame, and can slide in a fixed guiding groove. The first end of the arm bears on a fixed stop of the frame during tilting of the plug toward the closed position of the frame. The arm moves the plug backwards and so the plug correctly closes the opening of the frame.
    Type: Application
    Filed: March 15, 2011
    Publication date: September 15, 2011
    Applicant: NORINCO
    Inventor: Pascal Lacroix
  • Publication number: 20100178106
    Abstract: The specification discloses apparatus and a process in which the stack of concrete or hard rubber spacer rings used in raising manholes is eliminated. It is replaced with a sleeve which is taller than the required distance between the top of the manhole and the level at which the casting and manhole cover are to be finally located, but which is sufficiently flexible in a vertical direction that when a casting is located in the top of the sleeve, the sleeve compresses downwardly. The height of the casting is fixed by a casting support resting on the pavement base coat or other base surface to which the final pavement will be applied around the casting. The sleeve is sufficiently stiff in a lateral direction that it does not collapse inwardly when backfill is packed in and around the exterior of the sleeve. The casting support is removed and the final layer of pavement is applied over the base surface.
    Type: Application
    Filed: January 12, 2010
    Publication date: July 15, 2010
    Inventor: Andrew C. Mitchell
  • Publication number: 20100124458
    Abstract: A system and method are provided for coupling a manhole cover to an underground utility box to support the manhole cover substantially flush with a ground surface such as a roadway. A holder couples to an underground utility box and includes upper and lower ends and a channel extending therebetween, and a support structure extending into the channel and defining an upwardly facing support surface. An adjustment member for coupling to a manhole cover is inserted within the channel, and includes upper and lower ends, and a passageway extending therebetween and communicating with the channel. The adjustment member is movably receivable within the channel to be seated on the support surface, and to define an adjustment space between the adjustment member and the holder. The adjustment member may thus be adjusted for accommodating a slope and elevation of a ground surface, and sealed with the holder after adjustment.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 20, 2010
    Inventor: John Munro
  • Patent number: 7712259
    Abstract: A quick, field installed sump cover system for below ground sumps includes a support ring, a seal between the ring and sump upper lip, preferably two compression brackets each having two spaced regions extending under riser parts, at least one elongated member coupled between the support ring and compression brackets for selectively applying tension forces therebetween causing the bracket regions to engage the riser parts and the support ring to compresses the sealing member to form liquid-tight seal with the sump lip. The sump top can be closed by a dome-cover removably coupled to the support ring. The elongated members can include chain-like members with tensioning devices that, in field installations, can accommodate various sump sizes.
    Type: Grant
    Filed: October 20, 2007
    Date of Patent: May 11, 2010
    Assignee: Universal Valve Co., Inc.
    Inventor: Martin C. Pettesch
  • Patent number: 7648307
    Abstract: An underground structure cover comprises a cover body (10) and a receiving frame (20) arranged so that the cover body is fitted in and supported by the receiving frame in the manner that an inclined surface (11) of the outer circumference of the body meets an inclined surface (21) of the inner circumference of the frame. The inclined surfaces (11, 21) each have an upper inclined surface (11a, 21a) and a lower inclined surface (11b, 21b), and the lower inclined surfaces (11b, 21b) are steeper than the upper inclined surfaces (11a, 21a). The body (10) is fitted in and supported by the part (20) at the upper inclined surfaces (11a, 21a) and the lower inclined surfaces (11b, 21b). By this, the body is prevented from being wedged into the frame too deeply and also from becoming inclined with respect to the frame or riding up.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: January 19, 2010
    Assignee: Hinode Inc.
    Inventors: Yukinori Gondou, Tomokazu Hasegawa, Masakazu Hidaka, Norio Shinohara, Kenichi Koga, Kazumi Tanaka
  • Patent number: 7648308
    Abstract: This frame (2) comprises a bottom plate (22) which has a base (26) which defines a frame support surface (28) which is directed towards an inner side (I) and a skirt (20) which is intended to receive a covering element (4) and which defines an outer side (E). The bottom plate (22) comprises at least one cell (32) which is open towards the inner side (I). Use in frames for manholes.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: January 19, 2010
    Assignee: Saint-Gobain Pam
    Inventors: Arnaud Cuny, Francis Berthon
  • Publication number: 20090324329
    Abstract: A manhole cover for preventing the inflow of a bad smell and a harmful insect is provided. More particularly, the manhole cover includes a manhole top plate that has a plurality of drainage holes and a display part; a drainage guide plate that is integrally formed in a bottom part of the manhole top plate; a gate that is provided in a front end exit of the drainage guide plate and that is closed by a weight; and walls that are vertically and integrally formed in four edges of the manhole top plate. The display part, which is provided in one side of the manhole top plate can perform a specific display such as a trademark, a firm name, a logo, a slogan. The gate can be fully opened or closed within a space part by forming the space part in a lower part of the display part.
    Type: Application
    Filed: May 23, 2006
    Publication date: December 31, 2009
    Inventor: Youn Ho Choi
  • Publication number: 20090297265
    Abstract: Depressed manhole covers affect vehicles negatively. The B-W Manhole Cover-Cover is a recycled rubber disc attached to the existing manhole cover with toggle-bolts. It will provide proper elevation.
    Type: Application
    Filed: May 27, 2008
    Publication date: December 3, 2009
    Inventor: Robert F. Wood
  • Publication number: 20090290934
    Abstract: A manhole cover includes a support having an upper surface and a peripherally-extending portion. An outer insulating member is disposed over the entire upper surface of the support, and the support comprises a first material and the outer insulating member comprises a second material different from the first material. The peripherally-extending portion of the support is positionable over the lip of the manhole ring. The outer insulating member is positionable between the upper surface of the support and the upper surface of the rim of the manhole ring when the manhole cover is received in the manhole ring. In one aspect, the support comprises cross-members defining a grate having passageways through the support. In another aspect, the support comprises metal, and the outer insulating member comprises a composite of resin, reinforcement fibers, and stone aggregate. In another aspect, screen inserts are disposed in a plurality of passageways in the outer insulating member.
    Type: Application
    Filed: May 14, 2009
    Publication date: November 26, 2009
    Inventors: Lawrence E. JORDAN, Anthony F. MITOLA
  • Publication number: 20090214292
    Abstract: Embodiments of the present invention relate to a cover for a manhole or similar structure that encapsulates a traditional cover so as to extend the height of the cover. Generally, a conventional manhole cover is partially or entirely encapsulated in polyurethane to change its outside dimensions to match the environment of an intended location.
    Type: Application
    Filed: February 25, 2008
    Publication date: August 27, 2009
    Inventors: John Crissman, Danny Siders
  • Publication number: 20090148234
    Abstract: An apparatus and a method are provided for raising the elevation of a catch basin during reconstruction or repaving of roadways in order to raise the elevation of existing catch basin grills to that of the new elevation of the modified roadway. The improved catch basin riser utilizes a newly formed catch basin top and spacer that each define a height dimension approximately equal to an elevated roadway dimension. The catch basin top is fabricated from concrete reinforced with galvanized rebar and angle iron. In the field, the existing catch basin grill is removed exposing the grill ledge and a prefabricated spacer is positioned on the grill ledge. The new catch basin top is bonded to the existing catch basin top and the grill is positioned upon the spacer within the new catch basin top and the existing catch basin top at the new elevation of the modified roadway.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 11, 2009
    Inventor: Gary Pierce
  • Patent number: 7540683
    Abstract: 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 disc-shaped base portion having a top surface and a bottom surface, with a plurality of groups of stability tangs attached to its bottom surface. A cover as provided herein is readily adaptable to fit a large number of conduit boxes, valve boxes and the like which are presently in common use.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: June 2, 2009
    Inventor: Gary W. Salas
  • Publication number: 20080267702
    Abstract: An apparatus that automatically levels a manhole upon placement of the manhole in the road. The preferred embodiment includes a support beam, two clamping units and two carrying handles. The clamping units contact the top of the manhole and clamp the manhole to the bottom of the support beam. The carrying handles assist in placing the manhole in the road and aligning the support beam on top of the road. The road surface forces the bottom of the support beam to align with the road. Since the top of the manhole is clamped to the bottom of the support beam, the manhole is also forced to align with the new road surface. The present manhole leveler works on roads with steep inclines and banking.
    Type: Application
    Filed: April 1, 2008
    Publication date: October 30, 2008
    Inventor: Greg Dunbar
  • Patent number: 7429022
    Abstract: A manhole collar for mounting in a manhole is defined by a tube with rigid strips shaped to form lobes welded around the upper edge with a bottom edge of each lobe for engaging the ground or other surface around the manhole. A support sleeve is mounted on the tube in a recessed notch at an angular location thereon defining a cylindrical receptacle to hold a post standing up from the manhole for a davit or the like. The sleeve extends partly into the tube and partly outwardly and on the outside is supported by one of the lobes and on the inside by a planar chordal gusset plate. The sleeve includes a cylindrical bushing and a clamping pin for clamping the post in the sleeve engaging through a hole in the sleeve against an outer surface of the cylindrical bushing so that threaded adjustment of the pin causes an end of the pin to press against the cylindrical bushing and divert the bushing inwardly.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: September 30, 2008
    Assignee: Capital Safety Group Winnipeg Ltd.
    Inventor: Jan Vetesnik
  • Patent number: 7401998
    Abstract: A stackable polymeric foam adjustment or grade ring is provided for the construction of the adjustment courses or manhole chimney portion of a sewer system. The adjustment ring is circular and may include concentric annular grooves on at least one surface and male portions corresponding in size and shape to the concentric annular grooves on a second surface. The adjustment rings are stacked one on another with the respective male portions being coupled within a corresponding annular groove to provide a manhole construction that is resistant to inflow, chemicals and freeze-thaw cycle damage.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: July 22, 2008
    Inventors: Stephen K. Wilson, David Wahl
  • Publication number: 20080138153
    Abstract: 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 be connected to a shaft that is threadedly engaged with the frame. A spring may be mounted between the frame and the mounting tab, for example, in a sleeve, to provide a mechanical assist in lifting the cover. The sleeve may be disposed outside the manhole opening where it does not block access to the manhole opening.
    Type: Application
    Filed: January 4, 2008
    Publication date: June 12, 2008
    Applicant: EAST JORDAN IRON WORKS, INC.
    Inventors: Jeremy I. Johnson, Lee M. Veldboom, Scott B. Beal, Herbert Carl Barnum, William R. Austin, James F. Malpass, Todd C. Loviska, Brian J. Rachwitz, Rex A. Garringer, John H. Snyder
  • Patent number: 7313889
    Abstract: A template for temporary placement on the open upper end of a below-ground structure, including a rectangular body matching key dimensions of a permanent ground-level member to be installed, the body having an open bottom to engage the open upper end of the below-ground structure, a raised top surface, a back road-edge portion on one side of the body, and upright sidewalls. A method for using the template to facilitate adjustment of positioning of below-ground structures on which permanent ground-level members will be installed, the method involving placing, removing and re-placing the template while determining and adjusting positioning of the below-ground structure.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: January 1, 2008
    Inventor: Mark Karow
  • Patent number: 7266926
    Abstract: A template for temporary placement on the open upper end of a below-ground structure, including a body matching key dimensions of a permanent ground-level member to be installed, the body having an open bottom to engage the open upper end of the below-ground structure, a raised top surface, and an upright sidewall. A method for using the template to facilitate adjustment of positioning of below-ground structures on which permanent ground-level members will be installed, the method involving placing, removing and re-placing the template while determining and adjusting positioning of the below-ground structure.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: September 11, 2007
    Inventor: Mark Karow
  • Patent number: 7201534
    Abstract: 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 interconnected to allow users to easily and quickly install a security barrier under a manhole, handhole or vault, and thereby prevent authorized access through the manhole, handhole or vault. The apparatus uses an insert that may either sit on the existing manhole frame rim under the manhole cover, or if there is insufficient clearance on the manhole frame rim, brackets may be installed under the manhole frame upon which the insert rests. In either configuration, the insert is secured in place under the manhole cover by one or more locking pins that extend radially through the insert and are then locked to the insert.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: April 10, 2007
    Assignee: H & M - AMH, Inc.
    Inventor: Gordon K. Dennis