[특허]Laser leveling system, apparatus and method for building construction

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01C-015/00
출원번호	US-0080207 (2002-02-19)
발명자 / 주소	Akers, Paul
대리인 / 주소	Schacht, Michael R.Schacht Law Office, Inc.
인용정보	피인용 횟수 : 19 인용 특허 : 32

초록 ▼

A leveling assembly to establish elevations in a building structure for installing cabinets, bookshelves, countertops, etc. There is a telescoping mounting post adapted to be positioned in bearing engagement between a floor surface and the top of a doorway, ceiling or other upper surface. A laser th

A leveling assembly to establish elevations in a building structure for installing cabinets, bookshelves, countertops, etc. There is a telescoping mounting post adapted to be positioned in bearing engagement between a floor surface and the top of a doorway, ceiling or other upper surface. A laser that transmits a horizontal laser beam is mounted to a mounting device that can be moved to different positions along the length of the post. Locking devices hold the laser-mounting device in place, and also properly position the post to be in firm engagement with its bearing surfaces. The laser-mounting device can be swung to upper and lower positions.

대표청구항 ▼

A leveling assembly to establish elevations in a building structure for installing cabinets, bookshelves, countertops, etc. There is a telescoping mounting post adapted to be positioned in bearing engagement between a floor surface and the top of a doorway, ceiling or other upper surface. A laser th

A leveling assembly to establish elevations in a building structure for installing cabinets, bookshelves, countertops, etc. There is a telescoping mounting post adapted to be positioned in bearing engagement between a floor surface and the top of a doorway, ceiling or other upper surface. A laser that transmits a horizontal laser beam is mounted to a mounting device that can be moved to different positions along the length of the post. Locking devices hold the laser-mounting device in place, and also properly position the post to be in firm engagement with its bearing surfaces. The laser-mounting device can be swung to upper and lower positions. l direction of said ridged projections along said phantom setting lines is formed longer than a length in a widthwise direction of the ridged projections, wherein said inner reference points are adjacent to an innermost edge of the sheet member, wherein said outer reference points are adjacent to an outermost edge of the sheet member, wherein a total area occupied by all of said cleaning members accounts for 20 to 60% of a total area of said sheet member, wherein said phantom setting lines are curved with the curve protruding in the direction of the rotation of said sheet member and are at an angle to a first reference line passing through said center of rotation of said sheet member and extending toward the outermost edge of said sheet member in a reverse direction of the rotation of said sheet member, wherein a second reference line is tangential to the curved phantom setting lines at a midpoint of said length of said ridged projection, and wherein a third reference line extending from the end of said first reference line at said center of rotation and through the tangent point of said second reference line defines a crossing angle approaching 90° between said third reference line and said second reference line such that said phantom setting lines extend in relation to said second reference line based on said crossing angle. 5. A cleaning rotary brush according to claim 1 or 2, wherein said ridged projections are made of a polyvinyl acetal porous elastomer having a porosity of 80% to 95%, an average pore diameter of 30 μm to 250 μm, and a 30% compressive stress of 15 g/cm2to 150 g/cm2in an adequate water containing condition. 6. A cleaning rotary brush according to claim 3 or 4, wherein said ridged projections are made of a polyvinyl acetal porous elastomer having a porosity of 80% to 95%, an average pore diameter of 30 μm to 250 μm, and a 30% compressive stress of 15 g/cm2to 150 g/cm2in an adequate water containing condition.

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이 특허에 인용된 특허 (32) 인용/피인용 타임라인 분석

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Stabs Bruce A. (c/o Western Mechanical P.O. Box 60067 Airport Annex Fairbanks AK 99706), Elevation and plumb position determining device.
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Denton Howard M. (1338 N. Jim Miller Rd. Dallas TX 75217), Light-ray indicator.
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Valead Rick R. (Phoenix AZ), Mason\s guide.
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Fraley Glenn W. (6372 Trenton-Franklin Rd. Middletown OH 45042), Pipe alignment device and method.
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Barbee ; Jr. Adron W. (2140 Hulman Terre Haute IN 47803), Platform laser beam generator support and alignment apparatus and method for using same.
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Lysen Heinrich (Munich DEX), Plumb device to determine verticals and horizontals.
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Kitajima Eiichi,JPX ; Kishimoto Hiroshi,JPX, Remote controllable laser projection apparatus.
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Hills Brian (Rolling Hills Estates CA), Ruler with magnifying cursor.
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Melville Kenneth B. (9507 50th Pl. College Park MD 20740), Self centering pipe axis laser guide.
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Cain Gary L. (Springfield OH) Meyers Lawrence J. (Dayton OH) Teach Ted L. (Dayton OH) Rando Joseph F. (Los Altos Hills CA) Markley Theodore J. (Vandalia OH), Self leveling transmitter for laser alignment systems.
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Le Mike (c/o Hung Hsing Patent Service Center P.O. Box 55-1670 Taipei TWX), Three-dimensional optical levelling, plumbing and angle-calibrating instrument.
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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)
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[미국특허] Laser leveling system, apparatus and method for building construction 원문보기

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