[특허]Lightweight, portable vibratory screed

[미국특허] Lightweight, portable vibratory screed 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E01C-019/38 E01C-019/22
출원번호	US-0360228 (1999-07-23)
발명자 / 주소	Eitzen R. Wayne
대리인 / 주소	Head Johnson & KachigianKeisling
인용정보	피인용 횟수 : 25 인용 특허 : 8

초록 ▼

The screed includes an elongated blade vibrated by a centrally located, eccentric weight. The blade is supported by an elongated shaft extending to a power source that drives the weight. An associated operator handle facilitates convenient manipulation of the screed. A unique vibration dispersion system enables the centrally located weight to effectively vibrate the entire blade length. The dispersion system includes an elongated, rigid integral brace extending the entire blade length. The brace secures to the eccentric weight via a vibratory housing. Vibrations from the housing force the blade to vibrate violently to consolidate the plastic concrete. As the screed is drawn across wet plastic concrete, it simultaneously consolidates the concrete by vibrating it thoroughly throughout the monolith while also striking off and levelling the top layer of the concrete. The screed includes a pivoting kickstand that enables the operator to quickly release the screed without significant departure from the present screed angle and without requiring engine shut-off. During use, the operator may deploy the kickstand and then simply drop the screed handles to engage the kickstand and thereby support the screed on both the kickstand and the blade. The entire handle assembly is preferably adjustable to accommodate operators of varying heights as well as various depths of concrete. The vibratory dispersal system includes a multiple component clamp that secures the blade to the vibratory assembly to transfer vibrations from the eccentric weight across the blade. Central portions of the brace are captivated by respective clamp sections.

대표청구항 ▼

[What is claimed is:] [1.]an elongated screed bar having a top and a spaced apart flat bottom and an exterior intermediate ramp extending therebetween, said bottom adapted to finish the concrete and said ramp adapted to strike off said concrete;a shaft with spaced apart ends, one of said spaced apart ends secured to said bar and supporting a vibrational assembly adjacent said bar and adjusted to selectively vibrate said bar, and the other of said ends remotely supporting motor means for said powering said vibrational assembly;a clamp securing said shaft to said screed bar, said clamp comprising at least three sections adapted to captivate disparate portions of said screed bar top to enable said vibrational assembly to vibrate said screed bar; andwherein said screed bar top further comprises a brace having a rectangular cross-section and extending substantially across said screed bar top, said brace having integral portions captivated by said clamp.

이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

Allen J. Dewayne (Paragould AK), Floating vibrational screed.
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Owens Joe M. (842 Lake Holiday Dr. Sandwich IL 60548), Laser-guided portable screed.
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Record Darren D., Manual screeding system.
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Morrison Donald R. (6228 Eagle Peak Dr. Charlotte NC 28214), Portable screed.
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Owens Joseph M. (842 Lake Holiday Dr. Sandwich IL 60548), Portable screed with floating screed plate.
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Morrison Donald R. (2109 Camp Green St. Charlotte NC 28208), Portable vibrating concrete screed.
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Davis Larry L. ; Frazier Roy K., Portable vibratory wet screed.
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Weber Doug J. (P.O. Box 5026 Bella Vista AR 72714), Portable vibratory wet screed.
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이 특허를 인용한 특허 (25) 인용/피인용 타임라인 분석

Lindley,Joe, Apparatus for finishing concrete.
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Quenzi,Philip J.; Stein,Russ E.; Pietila,Mark A.; Kieranen,Carl B.; Halonen,Philip D; Hohmann, Jr.,Howard E., Apparatus for screeding uncured concrete.
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Quenzi,Philip J.; Stein,Russ E.; Pietila,Mark A.; Kieranen,Carl B.; Halonen,Philip D.; Hohmann, Jr.,Howard E., Apparatus for screeding uncured concrete surfaces.
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Quenzi,Philip J; Stein,Russ E; Pietila,Mark A; Kieranen,Carl B; Halonen,Philip D; Hohmann, Jr.,Howard E, Apparatus for screeding uncured concrete surfaces.
상세보기
Rouillard, Roger, Bearings for the vibration-causing assembly of a vibrating screed.
상세보기
Quenzi, Philip J.; Somero, David W.; Matson, Tracy L., Concrete finishing apparatus.
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Quenzi, Philip J.; Somero, David W.; Matson, Tracy L., Concrete finishing apparatus.
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Rozinski,Richard M., Concrete finishing tool with handle-mounted vibrating arrangement.
상세보기
Lindley, Joseph W., Concrete screed with reinforced screed bar.
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Aguilera, Gilbert, Concrete smoothing device.
상세보기
Rushin, Jr., Joseph; Bey-Rushin, Khadijah, Handle attachment.
상세보기
Oven, Fredric A.; Oven, Atara M., Level cutting device.
상세보기
Argento, Settimio; Argento, Michele, Leveling blade, vibrating screed including the blade, and kit for assembling the same.
상세보기
Quenzi, Philip J.; Stein, Russ E.; Pietila, Mark A.; Kieranen, Carl B.; Halonen, Philip D., Light weight apparatus for screeding and vibrating uncured concrete surfaces.
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Quenzi, Philip J.; Stein, Russ E.; Pietila, Mark A.; Kieranen, Carl B.; Halonen, Philip D., Lightweight apparatus for screeding and vibrating uncured concrete surfaces.
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Breeding,Kenny G, Portable vibratory concrete screed.
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Ewer,Charles J.; Niznik,William T., Rotating concrete finishing trowel.
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Ewer,Charles J.; Niznik,William T., Rotating concrete finishing trowel.
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Schmitt,Michael W.; Sina,Paul M., Screed bar for vibratory screed.
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Rouillard, Roger, Seal member for a vibrating screed.
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Pikuet,Kevin M., Tamping device.
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Lindley,Joseph W., Universal power unit that adapts to all phases from placing to final finishing of concrete.
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Robert E. Suckow, Vibrating screed and method for using same.
상세보기
Rijkers Wilhelmus Cornelis Henricus Maria,BEX, Vibrating screed and method of making same.
상세보기
Pietila, Mark A.; Halonen, Philip D.; Wiitanen, Jason M.; Torvinen, Jeffrey W., Wheeled screeding device.
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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] Lightweight, portable vibratory screed 원문보기