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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||404/026; 404/025; 52/020|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 12 인용 특허 : 70|
An assembly for adjusting the elevation of a structure such as a manhole or a catch basin to be surrounded by pavement. A one-piece is formed to be inserted between a base rim and a cover of the structure. A lower member of the adapter is received in the base rim to be supported on an internal shoulder. An upper member extends outwardly of the lower member to receive the cover and upwardly to engage the upper end of the base rim and form an upward extension of the rim. The elevation of the structure may be increased by inserting the adapter between the b...
1. An assembly for adjusting the elevation of a structure having a base rim surrounded by pavement, the base rim comprising an outer wall and a support shoulder extending inwardly from the wall and spaced downwardly from an upper end thereof, the assembly comprising a cover, and an adapter formed in a single piece to support the cover thereon and having upper and lower members, the lower member being receivable within the wall of the base rim to be supported on the shoulder thereof, the upper member extending outwardly of the lower member to receive the ...