US Patent No: 5,862,727

Number of patents in Portfolio can not be more than 2000

Laser arbor

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A laser arbor is provided that will display a cutting line on a work piece to be cut by a rotary saw. The laser is operated by a centrifugal switch mounted within the laser arbor along with a laser diode or the like and a battery. Because of the rotation of the laser with the blade and the persistence of the human eye, the moving light spot from the laser appears as a single line, hence it is not necessary as in the prior art to produce light divergence in the plane parallel to the blade plane. For that purpose, it is preferable to employ a light source having a wavelength that lies in a region to which the eye is sensitive, which in practice will typically mean a wavelength in the upper region of the red. Placement of the laser inwardly from the cutting surface of the blade eliminates the danger of any damage occurring to the laser as a result of debris from the cutting process.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KELLY, PATRICK S.GRANTS PASS, OR1
KELLY, ROBERT RANDALLGRANTS PASS, OR1
KELLY, ROBERT RANDALL, INVENTOR AND OWNERGRANTS PASS, OR1
RYOBI TECHNOLOGIES, INC.GRANTS PASS, OR1

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kelly, Robert R 747 Bridge St., Grants Pass, OR 97526 10 106

Cited Art Landscape

Patent Info (Count) # Cites Year
 
J. Gibson McIlvain Company (1)
* 4,885,967 Laser alignment device for sawmills 48 1988
 
GMCA PTY LTD (1)
* 5,461,790 Circular saws with laser guides for more precise movement during cutting 57 1994
 
BLACK & DECKER INC. (2)
* 5,285,708 Miter saw alignment system 142 1992
* 5,375,495 Optical alignment system for circular power saws 69 1993
 
COHERENT, INC. (1)
* 5,121,188 Laser module assembly 18 1990
 
QUARTON INC. (1)
* 5,446,635 Laser assembly for marking a line on a workpiece for guiding a cutting tool 63 1993
 
MACKEN LASER, INC. A CA CORPORATION (1)
* 4,469,931 Laser assisted saw device 42 1982
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (4)
* 6,497,168 Laser alignment system for saws with rotating blades 10 2000
6,915,727 Angled light beam rotary saw cut alignment device 3 2002
D492951 Rotary saw cut alignment guide 3 2003
* 7,168,180 Self-powered rotary optical aligning apparatus 4 2004
 
ELMER'S PRODUCTS, INC. (1)
7,770,502 Laser-guided paper trimmer 1 2008
 
BLACK & DECKER INC. (7)
D424076 Mounting device for a cutting tool 20 1999
* 7,343,841 Blade clamp assembly 7 2003
7,243,440 Gauge for use with power tools 11 2004
7,137,327 Riving knife assembly for a dual bevel table saw 17 2004
7,926,398 Cutter with optical alignment system 4 2005
7,430,810 Laser square protractor kit 4 2005
* 7,832,319 Blade clamp assembly 2 2008
 
HITACHI KOKI CO., LTD. (2)
8,359,960 Cutter with laser generator that irradiates cutting position on workpiece to facilitate alignment of blade with cutting position 0 2011
8,770,076 Cutter with laser generator that irradiates cutting position on workpiece to facilitate alignment of blade with cutting position 0 2013
 
Silvatech Corporation (1)
* 6,374,714 Combined grading and trimming method for sawmill 1 2000
 
MAKITA CORPORATION (1)
* 6,918,331 Lighted cutting tools 10 2001
 
ONE WORLD TECHNOLOGIES LIMITED (1)
D460469 Laser arbor 1 2001
 
ROBERT BOSCH TOOL CORPORATION (4)
* 8,616,102 Optical alignment device for a table saw 0 2011
* 2012/0255,415 Optical Alignment Device For A Table Saw 0 2011
* 2012/0255,414 Modular Laser Alignment Device for Power Tool 1 2011
8,915,170 Optical alignment device for a table saw 0 2013
 
HUBBS, WILLIAM O. (1)
7,204,024 Track and punch SMR marking device 3 2006
 
RANDOM INNOVATION (1)
7,162,809 Power saw guide 4 2005
 
CHANG TYPE INDUSTRIAL COMPANY (3)
8,004,664 Power tool control system 5 2003
7,073,268 Level apparatus 14 2003
7,359,762 Measurement and alignment device including a display system 7 2004
 
EASTWAY FAIR COMPANY LIMITED (4)
* 6,755,107 Miter saw having a light beam alignment system 19 2001
* 7,159,497 Light beam alignment system 1 2002
7,398,719 Miter saw having a light beam alignment system 3 2005
7,556,401 Adjustable laser module 1 2006
 
IRWIN INDUSTRIAL TOOL COMPANY (1)
7,966,738 Laser guide 0 2006
 
CHERVON (HK) LIMITED (1)
* 2010/0242,695 Optical marking mechanism and method for marking lines for a power tool 6 2010
 
CHANG TYPE INDUSTRIAL COMPANY, LTD. (4)
6,937,336 Optical alignment system for power tool 15 2002
7,346,847 Power tool control system user interface 5 2003
7,369,916 Drill press 7 2004
7,290,474 System for rapidly stopping a spinning table saw blade 7 2004
* Cited By Examiner