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특허 상세정보

Concrete finishing apparatus

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E01C-019/22   
미국특허분류(USC) 404/112
출원번호 US-0025577 (2011-02-11)
등록번호 US8075222 (2011-11-29)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 1  인용 특허 : 102
초록

A concrete finishing apparatus for smoothing and leveling partially set-up concrete at a support surface includes a frame portion, a first concrete working member and a second concrete working member disposed at the frame portion. The first concrete working member is rotatable about a first axis of rotation that is generally vertical when the first concrete working member is supported at a generally horizontal support surface. The second concrete working member is rotatable about a second axis of rotation that is generally vertical when the second concre...

대표
청구항

The invention claimed is: 1. A concrete finishing apparatus for smoothing and leveling partially set-up concrete at a support surface, said concrete finishing apparatus comprising:a frame portion;a first concrete working member disposed at said frame portion and rotatable about a first axis of rotation that is generally vertical when said first concrete working member is supported at a generally horizontal support surface, wherein said first concrete working member comprises a ring-shaped member that has a circumferential concrete engaging surface for en...

이 특허에 인용된 특허 (102)

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이 특허를 인용한 특허 피인용횟수: 1

  1. Brening, Scott. Portable vibratory concrete float. USP2013058439600.