US2572326A - Circular saw guard - Google Patents

Circular saw guard Download PDF

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Publication number
US2572326A
US2572326A US100996A US10099649A US2572326A US 2572326 A US2572326 A US 2572326A US 100996 A US100996 A US 100996A US 10099649 A US10099649 A US 10099649A US 2572326 A US2572326 A US 2572326A
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United States
Prior art keywords
guard
end
saw
table
circular saw
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Expired - Lifetime
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US100996A
Inventor
Evans Mervyn Camille
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Evans Mervyn Camille
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Publication of US2572326A publication Critical patent/US2572326A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27GACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G19/00Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/02Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/202With product handling means
    • Y10T83/2074Including means to divert one portion of product from another
    • Y10T83/2077By kerf entering guide
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/768Rotatable disc tool pair or tool and carrier
    • Y10T83/7734With guard for tool
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/869Means to drive or to guide tool
    • Y10T83/872With guard means

Description

Oct. 23, 1951 M. c. EVANS CIRCULAR SAW GUARD Filed June 24, 1949 CM Mm i WM mm We W V m Patented Oct. 23, 1951 CIRCULAR SAW GUARD Mervyn Camille Evans, Stanmore, near Sydney, New South Wales, Australia Application June 24, 1949, Serial No. 120,996

, In Australia July 12, 1948 This invention relates to improvements in circular saw guards. v

Said improved circular saw guard has at its forward portion pivotal means to which is pivoted one end of a link, the latter being also pivotally connected at itsother end to stationary means on a saw bench, whereby when a work piece is being fed to the forward end of the guard the said link will be tilted to lift :the'forward end of the guard by the pivoting on said pivotal connections of said link and guard until the guard is in balanced position to lie on the top of the work piece, and when said balanced position is passed the link and the forward part of the guard will be allowed to descend to the upper surface of the table of the saw bench, and when the work piece has been fed from beneath the rear end of the guard the latter end of the guard will descend to the upper surface of the table of the saw bench, so that the guard will completely cover the portion of the circular saw projecting above the upper surface of the table of the saw bench.

Other features of the invention are hereinafter referred to.

The invention will be described further in detail and by way of example with reference to the accompanying drawings, in which:

Fig. 1 is a perspective view of a saw guard according to the invention shown applied to the table of a saw bench; and

Fig. 2 is a longitudinal sectional elevation through the saw guard.

The table I of a saw bench has secured thereto in any well known manner a circular saw blade 2. There is also secured to the table I a riving knif 3. The guard 4 can take over and cover the portion of the blade 2 which projects through a slot in the table I. Guard 4 consists of a semi-circular shaped hood 5 and a pair of spaced vertically disposed side walls 6, the latter bein disposed in parallelism with the blade 2. The bottom edges I of the side walls 6 are straight and are disposed in parallelism with the upper surface of the table I.

On the rear end of the guard 4 there may be a lug 8 to which is pivotally connectible one end of a vertically disposed radius arm I having an elongated slot II. Into the latter a fixed pin I2 projects, the pin I2 being mounted on one end of a horizontal limb I3 of a bracket I4 which is suitably mounted on the upper surface of the table I.

Medially disposed of the length of the guard 4 and near the bottom of each of the side walls 6 is a trunnion pin I6. Pivotally mounted on the trunnion pins I6 is a saddle I'I Whose top is con- 2 Claims.- (Cl. 143-159) nectible to one end of a wire rope I 8 which passes over a pair of spaced rotatable sheaves I9 and 20 mounted in a bracket 2| which is associated with the bracket I4. The other end of the rope I8 is shown connected to a counterweight 22 to permit weight balancing of the guard 4 while also allowing the latter to swing in the saddle IT. The latter can slide upwardly and downwardly within the vertically disposed U-shaped gap 23 in the bracket The forward end of the guard 4 has affixed on each side wall 6 a trunnion pin 25. To the pins 25 is pivotally connected one end of a bifurcated link 26, whose other end is pivotally connected to a second horizontal limb 21 associated with the bracket I4. The forward end of the guard 4 is curvedly nosed as at 28.

-In operation, bottom edges 1 of the walls 6 of the guard 4 normally rest on the table I. As a work piece 30 is fed along the table I to abut the forward end of the guard 4, such piece 30 engages with the link 26, whereby the forward end of the guard 4 is raised, thereby allowing the work piece 30 to contact the saw blade 2. As the work piece 30 is fed forwardly on the table I the guard 4 is radially raised (see dotted position A Fig. 2) until the leading end 3| of the work piece 30 almost reaches beneath the bottom of the saddle I1. On the end 3| of the work piece 30 passing beyond the saddle H, the bottom edges 1 of the forward end of the walls 6 of the guard 4 will rest upon the upper surface of the work piece 30.

As the rear end 32 of the work piece 30 passes from underneath the saddle I I, the guard 4 will automatically tilt on the pins I6 (see dotted position B Fig. 2), whereby the link 26 and the forward end of the guard 4 will rest upon the upper surface of the table I, thereby allowing the adjacent portion of the saw blade 2 to be covered by the guard 4 and guarded from contact by a person.

When the work piece 30 passes from underneath the guard 4, the latter will automatically resume normal position thereof completely over the saw blade and on the upper surface of the table I.

What I claim as my invention and desire to secure by Letters Patent is:

l. A circular saw guard to be mounted on a saw bench and including a semicircular shaped hood and a pair of spaced vertically disposed side walls integral therewith, said walls being disposed in parallelism with the blade of the saw, and the bottom edges of said side wall being straight and disposed normally in parallelism with the upper surface of said saw bench and having at the forward portion thereof pivotal means, a link, one end of which is pivoted thereto, stationary means to which the link is pivotally connected at its other end, said stationary means being located on said saw bench, said guard also including ri-vring :kniie secured -.to the top .of said saw bench and "disposed between said side walls adjacent the rear end portion thereof, and said guard also including at the rear end thereof a lug, said stationary means including a horizontal limb, a fixed pin mounted on one end of said horizontal limb, and a vertically disposed radius arm having on one end portion an elongated slot into which said fixed pin slidably fits, and the other end being pivot-ally secured to said lug whereby when a work piece is'being fed to the forward end of the guard, said link will Kbe tilted to lift the forward end of the guard by thepivoting ion the pivotal connection of said link and guard, until the guard is in balanced position tolie on the top=of the work ;-piece,, rand when said ibalanced'position-is passed, the link and .the forward part -of the guard will be tal- .lowcd to descend :to the upper surface of said 25 -saw bench, and when the workpiece has :been led from beneath the rearend of the guard the latter end of the guard 'wil descend to the upper surface of said saw bench, so that the guard will completely cover the portion of the circular saw projecting above the upper surface of said bench.

2. A circular saw guard according to claim 7, including a trunnion pin mounted on each of said walls medially of the length of said walls and adjacent the bottom edge thereof, a saddle pivotlally mounted on said 4911 15, :spaced sheaves rotatably mounted on saidsstationarymeans, a rope passing over said sheaves and having one end connected to the top of said saddle, and a. counterweight carried by the other end of said rope', bal-'ance the weight of the guard, while also allowing it toswing in said saddle.

MERVYN CAMILIE EVANS.

:REEERENCES CITED The following references are of record in the file of patent:

UNITED STATES PATENTS

US100996A 1948-07-12 1949-06-24 Circular saw guard Expired - Lifetime US2572326A (en)

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AU2572326X 1948-07-12

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Cited By (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880032A (en) * 1973-08-22 1975-04-29 Dwight C Green Feeler operated saw guard
US4026174A (en) * 1974-12-18 1977-05-31 Justo Vidaller Fierro Guard for circular saw
US4549456A (en) * 1983-09-07 1985-10-29 Centre De Recherche Industrielle Du Quebec Noise damping guard for circular saws
DE9316426U1 (en) * 1993-08-16 1994-12-22 Lachhammer Adalbert Protection device for a circular saw
US20020017178A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Motion detecting system for use in a safety system for power equipment
US20020017179A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Miter saw with improved safety system
US20020017182A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake positioning system
US20020017183A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Cutting tool safety system
US20020056348A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Miter saw with improved safety system
US20020056350A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Table saw with improved safety system
US20020059855A1 (en) * 2000-09-29 2002-05-23 Gass Stephen F. Miter saw with improved safety system
US20020170400A1 (en) * 2001-05-17 2002-11-21 Gass Stephen F. Band saw with improved safety system
US20030015253A1 (en) * 2001-07-18 2003-01-23 Gass Stephen F. Router with improved safety system
US20030019341A1 (en) * 2001-07-27 2003-01-30 Gass Stephen F. Safety systems for band saws
US20030037651A1 (en) * 2001-08-13 2003-02-27 Gass Stephen F. Safety systems for power equipment
US20030056853A1 (en) * 2001-09-21 2003-03-27 Gass Stephen F. Router with improved safety system
US6578460B2 (en) * 2000-12-26 2003-06-17 James A. Sartori Blade guard assembly
US6813983B2 (en) 2000-09-29 2004-11-09 Sd3, Llc Power saw with improved safety system
US6826988B2 (en) 2000-09-29 2004-12-07 Sd3, Llc Miter saw with improved safety system
US20040255745A1 (en) * 2003-06-23 2004-12-23 One World Technologies Limited Table saw guard assembly
US6877410B2 (en) 2000-09-29 2005-04-12 Sd3, Llc Miter saw with improved safety system
US6945149B2 (en) 2001-07-25 2005-09-20 Sd3, Llc Actuators for use in fast-acting safety systems
US6957601B2 (en) 2000-08-14 2005-10-25 Sd3, Llc Translation stop for use in power equipment
US7024975B2 (en) 2000-08-14 2006-04-11 Sd3, Llc Brake mechanism for power equipment
US7055417B1 (en) 1999-10-01 2006-06-06 Sd3, Llc Safety system for power equipment
US7077039B2 (en) 2001-11-13 2006-07-18 Sd3, Llc Detection system for power equipment
US7100483B2 (en) 2000-08-14 2006-09-05 Sd3, Llc Firing subsystem for use in a fast-acting safety system
US7137326B2 (en) 2000-08-14 2006-11-21 Sd3, Llc Translation stop for use in power equipment
US20070056153A1 (en) * 2005-09-09 2007-03-15 Reinhold Opper Fastening apparatus and method with compensation for load-induced deformation of supporting frame
US7197969B2 (en) 2001-09-24 2007-04-03 Sd3, Llc Logic control with test mode for fast-acting safety system
US7210386B1 (en) * 2005-11-02 2007-05-01 Kingsand Machinery Ltd. Quickly detachable protective cover unit of a table sawing machine
US7231856B2 (en) 2001-06-13 2007-06-19 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US20070163408A1 (en) * 2006-01-17 2007-07-19 Buck William C Table saw guard
US20070186741A1 (en) * 2003-06-23 2007-08-16 Buck William C Table saw guard assembly
US20070186739A1 (en) * 2006-02-16 2007-08-16 Eastway Fair Company Limited Of Trident Chambers Riving knife clamp for a table saw
US7308843B2 (en) 2000-08-14 2007-12-18 Sd3, Llc Spring-biased brake mechanism for power equipment
US7347851B1 (en) 2004-03-09 2008-03-25 Leo B Kriksunov Needleless hypodermic jet injector apparatus and method
US7357056B2 (en) 2000-09-29 2008-04-15 Sd3, Llc Cutting tool safety system
US7377199B2 (en) 2000-09-29 2008-05-27 Sd3, Llc Contact detection system for power equipment
US20080178722A1 (en) * 2004-01-29 2008-07-31 Gass Stephen F Table saw with blade shroud
US7481140B2 (en) 2005-04-15 2009-01-27 Sd3, Llc Detection systems for power equipment
US7509899B2 (en) 2000-08-14 2009-03-31 Sd3, Llc Retraction system for use in power equipment
US7610836B2 (en) 2000-08-14 2009-11-03 Sd3, Llc Replaceable brake mechanism for power equipment
US7707920B2 (en) 2003-12-31 2010-05-04 Sd3, Llc Table saws with safety systems
US7712403B2 (en) 2001-07-03 2010-05-11 Sd3, Llc Actuators for use in fast-acting safety systems
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
US7895927B2 (en) 1999-10-01 2011-03-01 Sd3, Llc Power equipment with detection and reaction systems
US7921754B2 (en) 2000-08-14 2011-04-12 Sd3, Llc Logic control for fast-acting safety system
US20110094625A1 (en) * 2009-10-23 2011-04-28 Zhejiang Shida Tools Manufacture Co., Ltd. Mobile Hood of Wood-Working Table Saw
US7991503B2 (en) 2003-12-31 2011-08-02 Sd3, Llc Detection systems for power equipment
US8065943B2 (en) 2000-09-18 2011-11-29 Sd3, Llc Translation stop for use in power equipment
US8079295B2 (en) 2008-06-20 2011-12-20 Sd3, Llc Table saw blade guards and blade guard assemblies including lateral blade guards, and table saws including the same
US8082825B2 (en) 2009-06-09 2011-12-27 Butler David J Health and safety system for a table saw
US20120103156A1 (en) * 2006-04-25 2012-05-03 Chevron Limited Guard assembly for a saw blade
US8459157B2 (en) 2003-12-31 2013-06-11 Sd3, Llc Brake cartridges and mounting systems for brake cartridges
US20140216224A1 (en) * 2013-02-02 2014-08-07 Nanjing Bovon Power Tools Co., Ltd. Table saw
US9724840B2 (en) 1999-10-01 2017-08-08 Sd3, Llc Safety systems for power equipment
US10118308B2 (en) 2013-10-17 2018-11-06 Sawstop Holding Llc Systems to mount and index riving knives and spreaders in table saws

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Publication number Priority date Publication date Assignee Title
DE75134C (en) * 1892-08-07 1894-05-15 Oppler Hugo Protection device for boaters
GB189821328A (en) * 1898-10-11 1899-05-27 Frederick Thomas Greenwood An Improved Guard for Circular Saws and other similar Machinery.
US1148169A (en) * 1913-01-06 1915-07-27 Andrew F Howe Saw-guard.
FR487226A (en) * 1916-12-23 1918-06-18 Joseph Rio Safety apparatus for circular saws
AT153002B (en) * 1937-02-16 1938-04-11 Rudolf Hattinger Protection device for circular saws.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE75134C (en) * 1892-08-07 1894-05-15 Oppler Hugo Protection device for boaters
GB189821328A (en) * 1898-10-11 1899-05-27 Frederick Thomas Greenwood An Improved Guard for Circular Saws and other similar Machinery.
US1148169A (en) * 1913-01-06 1915-07-27 Andrew F Howe Saw-guard.
FR487226A (en) * 1916-12-23 1918-06-18 Joseph Rio Safety apparatus for circular saws
AT153002B (en) * 1937-02-16 1938-04-11 Rudolf Hattinger Protection device for circular saws.

Cited By (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880032A (en) * 1973-08-22 1975-04-29 Dwight C Green Feeler operated saw guard
US4026174A (en) * 1974-12-18 1977-05-31 Justo Vidaller Fierro Guard for circular saw
US4549456A (en) * 1983-09-07 1985-10-29 Centre De Recherche Industrielle Du Quebec Noise damping guard for circular saws
DE9316426U1 (en) * 1993-08-16 1994-12-22 Lachhammer Adalbert Protection device for a circular saw
US9724840B2 (en) 1999-10-01 2017-08-08 Sd3, Llc Safety systems for power equipment
US8196499B2 (en) 1999-10-01 2012-06-12 Sd3, Llc Power equipment with detection and reaction systems
US7055417B1 (en) 1999-10-01 2006-06-06 Sd3, Llc Safety system for power equipment
US8408106B2 (en) 1999-10-01 2013-04-02 Sd3, Llc Method of operating power equipment with detection and reaction systems
US7895927B2 (en) 1999-10-01 2011-03-01 Sd3, Llc Power equipment with detection and reaction systems
US10335972B2 (en) 1999-10-01 2019-07-02 Sawstop Holding Llc Table Saws
US7788999B2 (en) 1999-10-01 2010-09-07 Sd3, Llc Brake mechanism for power equipment
US9969014B2 (en) 1999-10-01 2018-05-15 Sawstop Holding Llc Power equipment with detection and reaction systems
US9522476B2 (en) 1999-10-01 2016-12-20 Sd3, Llc Power equipment with detection and reaction systems
US9925683B2 (en) 1999-10-01 2018-03-27 Sawstop Holding Llc Table saws
US8100039B2 (en) 2000-08-14 2012-01-24 Sd3, Llc Miter saw with safety system
US7509899B2 (en) 2000-08-14 2009-03-31 Sd3, Llc Retraction system for use in power equipment
US9038515B2 (en) 2000-08-14 2015-05-26 Sd3, Llc Logic control for fast-acting safety system
US7610836B2 (en) 2000-08-14 2009-11-03 Sd3, Llc Replaceable brake mechanism for power equipment
US7308843B2 (en) 2000-08-14 2007-12-18 Sd3, Llc Spring-biased brake mechanism for power equipment
US7681479B2 (en) 2000-08-14 2010-03-23 Sd3, Llc Motion detecting system for use in a safety system for power equipment
US6857345B2 (en) 2000-08-14 2005-02-22 Sd3, Llc Brake positioning system
US7832314B2 (en) 2000-08-14 2010-11-16 Sd3, Llc Brake positioning system
US8522655B2 (en) 2000-08-14 2013-09-03 Sd3, Llc Logic control for fast-acting safety system
US6920814B2 (en) 2000-08-14 2005-07-26 Sd3, Llc Cutting tool safety system
US20020017183A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Cutting tool safety system
US20020017179A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Miter saw with improved safety system
US6957601B2 (en) 2000-08-14 2005-10-25 Sd3, Llc Translation stop for use in power equipment
US7225712B2 (en) 2000-08-14 2007-06-05 Sd3, Llc Motion detecting system for use in a safety system for power equipment
US8191450B2 (en) 2000-08-14 2012-06-05 Sd3, Llc Power equipment with detection and reaction systems
US7921754B2 (en) 2000-08-14 2011-04-12 Sd3, Llc Logic control for fast-acting safety system
US7024975B2 (en) 2000-08-14 2006-04-11 Sd3, Llc Brake mechanism for power equipment
US20020017178A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Motion detecting system for use in a safety system for power equipment
US8151675B2 (en) 2000-08-14 2012-04-10 Sd3, Llc Logic control for fast-acting safety system
US7100483B2 (en) 2000-08-14 2006-09-05 Sd3, Llc Firing subsystem for use in a fast-acting safety system
US7137326B2 (en) 2000-08-14 2006-11-21 Sd3, Llc Translation stop for use in power equipment
US20020017182A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake positioning system
US8065943B2 (en) 2000-09-18 2011-11-29 Sd3, Llc Translation stop for use in power equipment
US6813983B2 (en) 2000-09-29 2004-11-09 Sd3, Llc Power saw with improved safety system
US8186255B2 (en) 2000-09-29 2012-05-29 Sd3, Llc Contact detection system for power equipment
US6994004B2 (en) 2000-09-29 2006-02-07 Sd3, Llc Table saw with improved safety system
US6880440B2 (en) 2000-09-29 2005-04-19 Sd3, Llc Miter saw with improved safety system
US6877410B2 (en) 2000-09-29 2005-04-12 Sd3, Llc Miter saw with improved safety system
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US8061245B2 (en) 2000-09-29 2011-11-22 Sd3, Llc Safety methods for use in power equipment
US20020059855A1 (en) * 2000-09-29 2002-05-23 Gass Stephen F. Miter saw with improved safety system
US20020056350A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Table saw with improved safety system
US7357056B2 (en) 2000-09-29 2008-04-15 Sd3, Llc Cutting tool safety system
US7377199B2 (en) 2000-09-29 2008-05-27 Sd3, Llc Contact detection system for power equipment
US20020056348A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Miter saw with improved safety system
US7784507B2 (en) 2000-09-29 2010-08-31 Sd3, Llc Router with improved safety system
US6945148B2 (en) 2000-09-29 2005-09-20 Sd3, Llc Miter saw with improved safety system
US6578460B2 (en) * 2000-12-26 2003-06-17 James A. Sartori Blade guard assembly
US20020170400A1 (en) * 2001-05-17 2002-11-21 Gass Stephen F. Band saw with improved safety system
US9927796B2 (en) 2001-05-17 2018-03-27 Sawstop Holding Llc Band saw with improved safety system
US7231856B2 (en) 2001-06-13 2007-06-19 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US7712403B2 (en) 2001-07-03 2010-05-11 Sd3, Llc Actuators for use in fast-acting safety systems
US20030015253A1 (en) * 2001-07-18 2003-01-23 Gass Stephen F. Router with improved safety system
US6945149B2 (en) 2001-07-25 2005-09-20 Sd3, Llc Actuators for use in fast-acting safety systems
US20030019341A1 (en) * 2001-07-27 2003-01-30 Gass Stephen F. Safety systems for band saws
US7000514B2 (en) 2001-07-27 2006-02-21 Sd3, Llc Safety systems for band saws
US20030037651A1 (en) * 2001-08-13 2003-02-27 Gass Stephen F. Safety systems for power equipment
US6997090B2 (en) 2001-08-13 2006-02-14 Sd3, Llc Safety systems for power equipment
US20030056853A1 (en) * 2001-09-21 2003-03-27 Gass Stephen F. Router with improved safety system
US7197969B2 (en) 2001-09-24 2007-04-03 Sd3, Llc Logic control with test mode for fast-acting safety system
US7077039B2 (en) 2001-11-13 2006-07-18 Sd3, Llc Detection system for power equipment
US20070186741A1 (en) * 2003-06-23 2007-08-16 Buck William C Table saw guard assembly
US20040255745A1 (en) * 2003-06-23 2004-12-23 One World Technologies Limited Table saw guard assembly
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
US7707920B2 (en) 2003-12-31 2010-05-04 Sd3, Llc Table saws with safety systems
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US7866239B2 (en) 2003-12-31 2011-01-11 Sd3, Llc Elevation mechanism for table saws
US8505424B2 (en) 2004-01-29 2013-08-13 Sd3, Llc Table saws with safety systems and systems to mount and index attachments
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