[특허]Step safety groover apparatus

Step safety groover apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B28D-001/18
출원번호	US-0953068 (1978-10-20)
발명자 / 주소	Reinhardt Frederick N. (Gardena CA) Fouts William A. (Gardena CA)
출원인 / 주소	Cushion Cut, Inc. (Harbor City CA 02)
인용정보	피인용 횟수 : 29 인용 특허 : 0

초록 ▼

A step groover apparatus has a housing to which a direct drive means is attached. The drive means has a rotatable shaft extending into the interior of the housing and on which a plurality of grooving blades are fixed in space relationship. The blades extend through an opening in a lower portion of the housing. The housing has front and rear skids on which the apparatus slides as it moves along the top of the step. The skids are vertically adjustable to vary the depth of the groove to be cut in the step. A vertically and horizontally adjustable face guide is adapted to be forced against the face of the step so that the grooves will be parallel to the step face. A radially extending handle is attached to the housing so that the rear skid may be pressed downward against the top of the step. A laterally extending handle is attached to the housing so that the front skid and the face guide may be simultaneously pressed against the top and face of the step, respectively. Cooling apparatus is also provided to extend through the housing to spray the blades with water and provide lubrication between the skids and the step.

대표청구항 ▼

A stair grooving apparatus for cutting longitudinal grooves along the top of a stair step comprising: a housing which comprises: a peripheral member having a first end and a second end, the peripheral member having an opening through one portion thereof and a plurality of housing orifices through a second portion thereof, a first end plate fixed to the first end, the first end plate having an orifice therethrough, and a second end plate removably attached to the second end, the peripheral member and end plates defining an interior region; an axially mounted drive means attached to the first end plate, the drive means having a rotatable shaft positioned to extend through the orifice in the first end plate; grooving means which comprises: a plurality of grooving blades attached to the shaft in the interior region of the housing, a portion of the blades extending through the opening in the peripheral member of the housing, the cutting blades positioned for being spaced apart from each other; positioning means which comprises: a front skid plate vertically adjustably mounted to a front region of the housing, a rear skid plate vertically adjustably mounted to a rear region of the housing, the front and rear skids adapted for supporting the stair grooving apparatus on the top of the stair step, with the opening in the peripheral member adapted for being positioned immediately above the stair step, and a face guide means connected to the housing for being positioned next to the vertical face of the stair step for guiding the stair grooving apparatus; grasping means which comprises: a radially extending handle attached to the housing for pressing a selected one of the front and rear skids against the top of the stair step when a downward force is applied to the radially extending handle, and a laterally extending handle attached to the housing for simultaneously pressing the other of the front and rear skids against the top of the stair step and the face guide against the face of the stair step; and means for cooling and lubricating which comprises a plurality of nozzles attached to the housing, each nozzle for directing a liquid through the housing orifices for spraying the liquid on the grooving means and on the stair step surface.

이 특허를 인용한 특허 (29)

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Chiuminatta Edward (6677 Columbus Riverside CA 92504) Chiuminatta Alan R. (6677 Columbus Riverside CA 92504), Skid plate for cutting unhardened concrete.
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Chiuminatta Edward (6677 Columbus Riverside CA 92504) Chiuminatta Alan Ray (6677 Columbus Riverside CA 92504), Soft concrete saw.
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Roger D. Porter ; Jerome C. Burroughs, Trenching and edging system.
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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

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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연합인증

Step safety groover apparatus 원문보기

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이 특허를 인용한 특허 (29)

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Step safety groover apparatus 원문보기

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이 특허를 인용한 특허 (29)

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