[특허]Manhole adapter

Manhole adapter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E02D-029/14
출원번호	US-0677719 (1991-03-29)
발명자 / 주소	Adams Charles (Melville LA)
출원인 / 주소	AT&T Bell Laboratories (Murray Hill NJ 02)
인용정보	피인용 횟수 : 28 인용 특허 : 0

초록 ▼

A cover (56) of an existing manhole is raised in elevation to the elevation of roadway resurfacing, for example, by an adapter (20) which is secured to a head ring (40) of the existing manhole. The adapter is such that when it is secured to the head ring, apertures (77－77) of ledges (75－75) of the adapter may be aligned with threaded apertures (59－59) in lugs of the head ring to which the cover had been secured. Spaced above the ledges and extending peripherally above the head ring is a lip (72) for supporting the cover. At ninety degrees to each of the ledges and projecting from the lip is an ear portion (84) to which the cover may be secured. Additional adapters may be secured to the first adapter which has been secured to the head ring prior to subsequent resurfacing operations.

대표청구항 ▼

A manhole, said manhole comprising: an enclosure having an access opening at an upper portion thereof; a head ring which is disposed about the access opening of the enclosure and supported by an upper portion of the enclosure, said head ring having an inwardly projecting flange and diametrically opposed lugs which project radially from said flange toward a center of the opening and which include threaded apertures therein, and said head ring further including an upper edge surface; an adapter which includes an annular post portion which is supported in engagement with said upper edge surface of said head ring and having a stem portion which depends downwardly along and in engagement with an inwardly facing surface of said head ring, said stem portion having a peripherally extending lip which includes an annular surface, wherein said stem portion of said adapter includes opposed radially and inwardly projecting ear portions which project from said lip and which have threaded apertures therein, and said adapter further including diametrically opposed depending portions which depend from said stem portion and which include radially projecting ledges each having an aperture therein, each said aperture in each said ledge being aligned with one of said threaded apertures in said head ring with said each ledge being in engagement with an upwardly facing surface of said flange of said head ring; a cover which is disposed in engagement with said annular surface of said lip of said stem portion wherein said cover includes two diametrically opposed openings therethrough and wherein said ear portions projecting radially inwardly from said lip of said stem portion have threaded apertures therein and said manhole further includes means extending through said openings in said cover into said threaded apertures of said ear portions of said adapter to secure said cover to said adapter; and means extending through said apertures in said ledges of said adapter into said aligned apertures in said head ring to hold said adapter secured to said head ring.

이 특허를 인용한 특허 (28)

Meyers, Theodore W., Adapter ring for on-site waste treatment or drainage systems.
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Tabibnia, Ramin, Apparatus and related methods of paving a subsurface.
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Tabibnia, Ramin, Apparatus for establishing a paver over a subsurface.
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Stetson, Michael A., Channel drain.
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Wilson,Stephen K.; Wahl,David, Construction of a foamed polymeric manhole chimney.
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Michael Alan Stetson, Cover for closing surface disposed utility access opening.
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Stetson, Michael A., Deck drain cover.
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Howie, Cameron Gordon, Entryway protective collar.
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Bowman,Joseph Manuel; Minor,Ray Carl, Handhole reinforcing frame for round utility poles.
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Kuan, Huan-Chang, Jump-proof manhole-handhole.
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Stadler, David, Locking cover assembly for preventing unauthorized access to a utility shut off valve.
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Dang, Nguyen Thai, Locking subgrade vault.
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Freeman, Eric, Locking subgrade vault.
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Freeman, Eric; Dang, Nguyen Thai, Locking subgrade vault.
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Wiedrich Dwight G., Manhole adjusting extension member.
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Fukuhara Masaru,JPX, Manhole cover receiving frame.
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Roush Warren H. ; Roush Anne F., Manhole extender ring system and method of use.
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Smith, Robert T., Manhole repair bracket.
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Nadasde, Wayne John, Method and apparatus for adjusting the height and inclination of roadway and greenway appurtenances.
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Nadasde,Wayne John, Method and apparatus for adjusting the height and inclination of roadway and greenway appurtenances.
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Meyers,Theodore W., Multi-use adapter ring for stackable riser components for on-site waste systems.
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P. Dennis McNeely, Nondestructive system for adjusting manhole and catch-basin elevations.
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Meyers, Theodore W., Riser pan component for on-site waste systems.
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Meyers, Theodore W., Riser pan component for on-site waste systems.
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Reinert, Sr., Gary L., Stainless steel airport light cannister apparatus and method.
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Reinert, Sr., Gary L., Stainless steel airport light cannister apparatus and method.
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Freeman, Eric; Dang, Nguyen Thai, Subgrade vault.
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Dang, Nguyen Thai, Tamper resistant closure mechanism for a utility vault.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Manhole adapter 원문보기

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이 특허를 인용한 특허 (28)

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