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Class Information
Number: 404/26
Name: Road structure, process, or apparatus > Pavement > Vault cover-closure > Elevation or level adjustment
Description: Vault cover-closure structure including means to vary the relative height or angularity of the cover structure with respect to the pavement.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8573883 Integrated frame and cover system Nov. 5, 2013
8540454 Manhole cover Sep. 24, 2013
8490513 Cable gland and gasket ring assembly Jul. 23, 2013
8382392 Multi-purpose adjustable quick expandable installment Feb. 26, 2013
8182171 Method for renovation of surface dressings around well curbs, and a compressible device for use in the method May. 22, 2012
7712259 Sump cover system for underground liquid storage tanks May. 11, 2010
7648307 Underground structure cover Jan. 19, 2010
7648308 Frame and corresponding roadway device Jan. 19, 2010
7540683 Subterranean conduit cover Jun. 2, 2009
7429022 Manhole collar for supporting a davit Sep. 30, 2008
7401998 Construction of a foamed polymeric manhole chimney Jul. 22, 2008
7313889 Temporary ground-level road-edge member and method for positioning below-ground structures Jan. 1, 2008
7266926 Temporary ground-level member and method for positioning below-ground structures Sep. 11, 2007
7201532 Method and device for adjusting height of manhole Apr. 10, 2007
7201534 Apparatus and method to secure manhole accessways Apr. 10, 2007
7165911 Manhole cover riser assembly Jan. 23, 2007
7150580 Tapered manhole sealing band and method for use Dec. 19, 2006
7025529 Self-leveling system Apr. 11, 2006
6997639 Method and apparatus for adjusting the height and inclination of roadway and greenway appurtenances Feb. 14, 2006
6955499 Adjustable utility access Oct. 18, 2005
6953302 Adjustment riser for a manhole frame Oct. 11, 2005
6869249 Adjusting device for installing a manhole ring onto a manhole Mar. 22, 2005
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 Feb. 8, 2005
6811350 Method and apparatus for adjusting the height and inclination of roadway and greenway appurtenances Nov. 2, 2004
6799920 Angle adjustable utility access and method Oct. 5, 2004
6769834 Methods and apparatus for covering openings in roadways Aug. 3, 2004
6698973 Adjustable manhole cover assembly Mar. 2, 2004
6695526 Adjustable manhole apparatus Feb. 24, 2004
6692183 Hydraulically adjustable manhole ring Feb. 17, 2004
6688806 Jump-proof manhole-handhole Feb. 10, 2004
6685333 Adjustable extension for airport light base Feb. 3, 2004
6682258 Nondestructive system for adjusting manhole and catch-basin elevations Jan. 27, 2004
6595716 Cam lever assembly for manhole center Jul. 22, 2003
6595717 Road gully or inspection cover assembly Jul. 22, 2003
6527476 Non-sinking manhole assembly for below ground liquid storage tanks Mar. 4, 2003
6524026 Adjustable height utility access device Feb. 25, 2003
6520713 Height and angle adjustable utility access device and method Feb. 18, 2003
6464425 Apparatus and method for minimizing liquid infiltration into subterranean openings Oct. 15, 2002
6457901 Adjustable manhole apparatus Oct. 1, 2002
6435764 Nondestructive system for adjusting manhole and catch-basin elevations Aug. 20, 2002
6431789 Method and apparatus for adjusting fiberglass manholes Aug. 13, 2002
6402423 Apparatus for and method of provisionally covering an inspection shaft of a subterranean duct system Jun. 11, 2002
6385913 Steel manhole May. 14, 2002
6371688 Manhole cover mounting structure Apr. 16, 2002
6371687 Method and apparatus for leveling manhole cover frames Apr. 16, 2002
6344137 Superimposed drain cover Feb. 5, 2002
6311433 Adjustable manhole/catch basin structure Nov. 6, 2001
6224292 Catch basin installation system and method May. 1, 2001
6196760 Adjustment riser Mar. 6, 2001
6179518 Adjustable manhole cover frame Jan. 30, 2001

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