[특허]Hydraulic powered screed

[미국특허] Hydraulic powered screed 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E01C-019/22
출원번호	US-0057920 (2002-01-29)
발명자 / 주소	Piccoli, Mario
출원인 / 주소	N. Piccoli Construction
대리인 / 주소	Marks & Clerk
인용정보	피인용 횟수 : 7 인용 특허 : 20

초록 ▼

This invention relates to a vibrating screed for compacting and smoothing flowable cementitious materials. More specifically, this invention relates to a self-contained hydraulic powered concrete screed. This hydraulic screed consists of a relatively lightweight screed unit having a hydraulic powered vibrator and a portable hydraulic power pack that is mounted on a back pack wearable by the operator. The handle of the screed unit is isolated from the hydraulic vibrator and screed blade by three rubber isolation mounts. The working height of the handle can be adjusted by a turnbuckle assembly at one of the rubber mounts, causing the handle to pivot about the other two the rubber mounts. The hydraulic power pack comprises an internal combustion engine driving a hydraulic pump that provides pressurized hydraulic fluid to the vibrator unit via flexible hoses.

대표청구항 ▼

1. A portable vibrating screed system for compacting and smoothing cementitious materials and operable by a sole operator, comprising: a vibrating screed unit having a hydraulic vibrator mounted to a frame, a screed blade mounted to a bottom side of said frame, and a handle mounted to said frame by a plurality of vibration damping units, the handle having an auxiliary handle to allow the operator to manipulate the screed blades; and a hydraulic power pack comprising a self contained rotary power source driving a hydraulic pump, said hydraulic power pack mounted on a back pack and wearable by said sole an operator, said hydraulic pump providing pressurized hydraulic fluid to said hydraulic vibrator via flexible hoses for causing said screed blade to vibrate as said vibrating screen unit is moved over the cementitious material by said operator. 2. The vibrating screed system of claim 1, wherein said self contained rotary power source is an internal combustion engine. 3. The vibrating screed system of claim 1, wherein said vibration damping units means comprises a rubber mount. 4. The vibrating screed system of claim 1, wherein at least one said vibration damping units pivotally connects said handle to said frame and at least one other said vibration damping units connects said handle to said frame via an adjustable turnbuckle assembly, thereby permitting adjustment of the angle of the handle. 5. The vibrating screed system of claim 4, wherein two said vibration damping units pivotally connect said handle to said frame and one other said vibration damping units connects said handle to said frame via said adjustable turnbuckle assembly. 6. A portable vibrating screed system for compacting and smoothing cementitious materials and operable by a sole operator, comprising: a vibrating screed unit having a hydraulic vibrator mounted to a frame, an interchangeable screed blade mounted to a bottom side of said frame, and a handle mounted at an angle to said frame by three vibration damping mounts, the first two of said vibration damping mounts pivotally connecting said handle to said frame and the third of said vibration damping mounts connecting said handle to said frame via a turnbuckle assembly thereby permitting adjustment of said angle the handle having an auxiliary handle to allow the operator to manipulate the screed blade, and a hydraulic power pack comprising an internal combustion engine driving a hydraulic pump, said hydraulic power pack mounted on a backpack wearable by an operator, said hydraulic pump providing pressurized hydraulic fluid to said hydraulic vibrator means via flexible hoses for causing said screed blade to vibrate as said vibrating screed unit is moved over the cementitious material by said operator.

이 특허에 인용된 특허 (20) 인용/피인용 타임라인 분석

Breeding Kenny D., Backpack mounted pivoting motor for concrete finishing.
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Kraft Simon (7501 W. 99th Ter. Overland Park KS 66212), Concrete finishing float with rear fitting bar.
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Nightengale Stanley A. (35297 Weld County Rd. 41 Eaton CO 80615) Burrows Harvey P. (1633 26th Ave. Ct. Greeley CO 80631), Concrete prefinishing tool.
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Lindley Thomas R. (7845 Wice Church Rd. Boaz KY 42027), Concrete striking equipment.
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Allen J. Dewayne (Paragould AK), Floating vibrational screed.
상세보기
Kojima Atsushi,JPX ; Nakaya Tomomi,JPX ; Warashina Makoto,JPX, Knapsack type working machine.
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Lindley Joseph (Paducah KY) Lindley Thomas R. (Boaz KY), Material-leveling apparatus.
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Naser Charles F. (Atlanta GA) Aldridge Steven L. (Alpharetta GA), Multi-purpose concrete working tool.
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Davis Larry L. ; Frazier Roy K., Portable vibratory wet screed.
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Glenn James Anderson NZ, Recreational devices.
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Allen J. Dewayne ; Guinn Timmy D., Transformable two-person floating screed with automatic grade control.
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Owens Joe M. (842 Lake Holiday Dr. Sandwich IL 60548), User-mounted concrete screed.
상세보기
Owens Joe M. (842 Lake Holiday Dr. Sandwich IL 60548), User-mounted concrete screed.
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Harding ; Jr. Edward M. (Middletown MD), Variable pitch power trowel.
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Owens Joe M., Vibrating screed.
상세보기
Robert E. Suckow, Vibrating screed and method for using same.
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Rijkers Wilhelmus Cornelis Henricus Maria,BEX, Vibrating screed and method of making same.
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Rouillard Roger,CAX, Vibrating screed for surfacing concrete.
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Lievers Johannes Franciscus,NLX, Vibratory screed device for levelling freshly poured concrete surfaces.
상세보기
Allen J. Dewayne (Paragould AR), Vibratory screed including a spreading device for leveling and distributing plastic concrete in front of the screed.
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이 특허를 인용한 특허 (7) 인용/피인용 타임라인 분석

Lindley,Joe, Apparatus for finishing concrete.
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Rozinski,Richard M., Concrete finishing tool with handle-mounted vibrating arrangement.
상세보기
Biodrowski, Richard, Concrete screed apparatus.
상세보기
Sina,Paul M., Concrete screed with vibration isolation.
상세보기
Sina,Paul M., Concrete screed with vibration isolation.
상세보기
Argento, Settimio; Argento, Michele, Leveling blade, vibrating screed including the blade, and kit for assembling the same.
상세보기
Schmitt,Michael W.; Sina,Paul M., Screed bar for vibratory screed.
상세보기

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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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[미국특허] Hydraulic powered screed 원문보기