[특허]Automatic level and plumb tool

Automatic level and plumb tool 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01B-011/26 G01C-009/12 G12B-005/00
출원번호	US-0248517 (1994-05-24)
발명자 / 주소	Rando Joseph F. (Los Altos Hills CA) Ligtenberg Christiaan (Mountain View CA)
출원인 / 주소	LeveLite Technology, Inc. (Mountain View CA 02)
인용정보	피인용 횟수 : 69 인용 특허 : 0

초록 ▼

An automatic plumb, level and pointing tool uses a visible laser diode to project light beams in two modes through two windows. In the first mode of operation, the unit is able to project a plumb-up beam and a level beam of light while resting on a surface which is as much as five degrees out of level. In the second mode of operation the unit is able to project two orthogonal beams of light both approximately in the horizontal plane for aligning one or more reference lines. An accurate, low cost method of generating level and plumb beams and planes of light is disclosed. One method uses an approximately leveled platform combined with a weak optical correction. The approximate leveling is done using a single wire or coil spring pendulum element which allows the platform to level itself to within a small fraction of true level, and remaining correction is provided by a weak negative lens or a weak reverse telescope. In alternative embodiments, all leveling is accomplished using a very flexible coil spring as a pendulum element, or a chain link connection in combination with such a spring. Several accessories are disclosed for use with the laser tool.

대표청구항 ▼

A portable hand tool for projecting a laser beam in level or plumb direction, in spite of a tilted condition of the tool itself, to align the projected laser beam in two stages to substantially truly level or plumb orientation, comprising: a housing, laser means with projection means for projecting a primary laser beam, pendulous mounting means secured to the housing and depending internally in the housing, including a platform, for effecting a first stage of alignment when the housing is not truly level or plumb, by tilting the platform angularly relative to the housing as induced by tilt of the housing, said laser means being mounted on the platform of the pendulous mounting means such that the projected primary beam from the laser means changes in angular relationship to the housing and is aligned to nearly level or plumb orientation when the housing is tilted, leaving a small angle of deviation of the primary laser beam from a truly level or plumb orientation, and weak lens means secured to the housing and positioned in the path of the primary laser beam, in a second stage of alignment, having a position and optics selected for aligning the laser beam to substantially truly level or plumb orientation as a final laser beam, by bending the path of the primary laser beam by said small angle of deviation.

이 특허를 인용한 특허 (69)

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Rando Joseph F., Alignment range for multidirectional construction laser.
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Rando Joseph F. (Los Altos Hills CA) Ligtenberg Christiaan (Mountain View CA), Automatic level and plumb tool.
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Rando Joseph F., Automatic plumb laser beam generator.
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Lyle,Steve Oneal; Wallace,Kenneth Miller; Reeves,Rocky Kent; Rainey,David Kevin; Parker,Stewart Keith; Jones,James Virgil; Henderson,Willis Paul, Automatic plumbing device.
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Wu, Chyi-Yiing, Compact optical calibrating apparatus for multiple orientations.
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Rando Joseph F., Construction laser accessory for generating aligned spots.
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Rando Joseph F., Construction laser accessory for generating aligned spots or lines.
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Hayes, James, Damping system and method for a pendulously supported crossline generator.
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Rando Joseph F. (Los Altos Hills CA), Diode laser co-linear and intersecting light beam generator.
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Wilson, Duard; Puri, Ash, Green beam laser level device.
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Wilson, Jeffrey Dale; Sanchez, Daniel Steven, Hand-held stabilized laser pointer.
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Kumagai Kaoru,JPX, Horizontal position error correction mechanism for electronic level.
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Nash,Derek J.; Smith,John C.; Spanski,Jeffrey L.; Williams,Michael, Intersecting laser line generating device.
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Nash,Derek J.; Smith,John C.; Spanski,Jeffrey L.; Williams,Michael, Intersecting laser line generating device.
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Nash,Derek J.; Smith,John C.; Spanski,Jeffrey L.; Williams,Michael, Intersecting laser line generating device.
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Puri, Ash; Wilson, Duard; Davenport, John; Huff, Bill, Laser alignment device.
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Tacklind, Christopher A.; Carlsen, Jr., William F.; Duval, Eugene F.; Butler, Andrew G.; Zimmerman, Thomas, Laser beam device with apertured reflective element.
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Zhao, Yuzhong, Laser distance finder.
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Zhao, Yuzhong, Laser distance finder.
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Marshall,James D.; Sergyeyenko,Oleksiy P., Laser level.
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Marshall,James D.; Sergyeyenko,Oleksiy P., Laser level.
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Nash,Derek J.; Smith,John C.; Spanski,Jeffrey L.; Burry,Michael James, Laser level.
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Raskin, James R.; Cooper, Jeffrey A.; Marshall, James D.; Sergyeyenko, Oleksiy P.; Wheeler, Thomas J., Laser level.
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Spaulding, James; Matteo, Michael T., Laser level.
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Ranieri, Eric; Maheu, Spencer Paul; Strickland, Kenneth W.; Sadowski, Daniel, Laser level system.
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Wu,Shuming, Laser level with adjustable laser projection line.
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Long,Charles Keith; Moore,Kevin A.; Wacker,Charles M.; Taylor,Skye V., Laser leveling device having a suction mounting arrangement.
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Long,Charles Keith; Moore,Kevin A.; Wacker,Charles M.; Taylor,Skye V., Laser leveling device having a suction mounting arrangement.
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Tamamura, Akihito, Laser line beam emitting apparatus having functions of laser marking or plumb instrument, or leveler.
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Malard, Fabrice J.; Hopper, Ryan K.; Poole, Daniel L.; Poole, Robert N., Laser line generating device.
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Malard, Fabrice J.; Hopper, Ryan K.; Poole, Daniel L.; Poole, Robert N., Laser line generating device.
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Levine,Steven R., Laser line generating device with swivel base.
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Levine,Steven R.; Spanski,Jeffrey L.; Smith,John C.; Nash,Derek J.; Gist,Leslie Daily, Laser line generating device with swivel base.
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Nash,Derek J., Laser line projected on an edge of a surface.
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Nash,Derek J.; Smith,John, Laser reference device.
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Hersey,William; Baylis,William H.; Luo,Yongxin, Laser-based alignment tool.
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Durham, John Anthony Douglas Bruce, Levelling device.
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Milligan, Michael A.; Kimball, Ted Andrew; Slobodian, Mark; Sergyeyenko, Oleksiy P.; Hobden, Robert J. B., Light line generating device.
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Munroe, Jay; Li, Haizhang; Liu, Yaping, Light-plane projecting apparatus and lens.
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Perazio,Gilles, Locating and tracing tool.
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Loudenslager, John H.; Malard, Fabrice J., Manual leveling rotating laser with swivel head.
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Malard, Fabrice J.; Loudenslager, John H.; Gamal, Albert, Manual leveling rotating laser with swivel head.
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Fuchs, Rudolf, Marking and/or leveling device.
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Heinz Kousek AT; Reinhard Waibel CH; Wilfried Piske CH, Measuring device subjected to gravitational forces and having a pendulous suspension.
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Caldwell,John L., Method and apparatus for imager die package quality testing.
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Caldwell,John L., Method and apparatus for imager quality testing.
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Tamamura, Akihito, Method of producing a precise horizontal or vertical laser line beam drawn on objectives, and apparatus thereof.
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Long,Charles Keith; Moore,Kevin A.; Wacker,Charles M.; Taylor,Skye V., Modular tool assembly having a vacuum mounting arrangement.
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Rando Joseph F. ; Litvin Timothy J., Multiple laser beam generation.
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Dang, Lieu-Kim; Bunter, Erwin; Brandenburg, Karsten, Multiple-axis laser emitter with optical beam splitter.
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Morrissey,Kevin Marc; Schaefer,Jason Alan, Optical system providing four beams from a single source.
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Morrissey,Kevin Marc; Schaefer,Jason Alan, Optical system providing four beams from a single source.
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Morrissey,Kevin Marc; Schaefer,Jason Alan, Optical system providing several beams from a single source.
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Rando Joseph F., Plumb laser beam generator with floating telescope.
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Litvin, Timothy J., Portable laser layout instrument.
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Harold Allen, Position and angle indicating tool.
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McCarty,Robin, Self-leveling laser alignment tool and method thereof.
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Hayes,Jim; McCarty,Robin, Self-leveling laser alignment tool and method thereof which compensates for material stiffness of an included pendulum.
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Hayes,Jim; McCarty,Robin, Self-leveling laser alignment tool and method thereof which compensates for material stiffness of an included pendulum.
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Chen,Ming, Self-leveling laser apparatus and a method for controlling the same.
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McCracken, Robert E., Self-leveling mechanism.
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Zimmermann, Thomas, Self-leveling multi-line laser device.
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Zimmermann, Thomas, Self-leveling multi-line laser device.
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Ng, Tuck Wah; Heng, Hiang How Caleb, Stabilized laser plumb.
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Long,Charles Keith; McCracken,Robert E.; Moore,Kevin A.; Wacker,Charles M.; Macias,Lilia F.; Knight,Mark A., Structure mountable assembly.
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Long,Charles Keith; McCracken,Robert E.; Moore,Kevin A.; Wacker,Charles M.; Macias,Lilia F.; Knight,Mark A., Structure mountable assembly.
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Levine,Steven R.; Gist,Leslie D., Stud finder.
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Milligan, Michael A.; Kimball, Ted Andrew; Marshall, James D.; Sergyeyenko, Oleksiy P.; Hobden, Robert J. B., Tool incorporating a light line generating 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

내보내기 구분	파일저장 인쇄 메일전송
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Automatic level and plumb tool 원문보기

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