US1255886A - Saw-guard. - Google Patents

Saw-guard. Download PDF

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Publication number
US1255886A
US1255886A US6299315A US6299315A US1255886A US 1255886 A US1255886 A US 1255886A US 6299315 A US6299315 A US 6299315A US 6299315 A US6299315 A US 6299315A US 1255886 A US1255886 A US 1255886A
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Prior art keywords
saw
guard
element
plate
yoke
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Expired - Lifetime
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US6299315A
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Emerald E Jones
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Emerald E Jones
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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
    • Y10T83/768Rotatable 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
    • Y10T83/95Machine frame
    • Y10T83/96Guard

Description

E. E. JONES.

SAW GUARD.

APPLICATION FILED Nov. 23. 1915.

1 ,$55,885. Patented Feb. 12, 1918.

2 SHEETS-SHEET l.

E. E. JONES.

SAW GUARD. APPLICATION FILED NOV. 23. 19|5.

. Patented Feb.12,1918.

2 SHEETS-SHEET 2.

f-nMEnAI-.n E. JONES, or CHICAGO, ILLINOIS.

To all whom t may concern.'

VVBe it'known that I, EMERALD E. JONES,

subject of the King of England, `and a Y'resident of the city of Chicago, county of Cook, Vand State of Illinois,l have invented v certaink new and usefullmprovements in Saw-Guards, of which the following is a specification.

My :invention has for yits object the production of a device of this character espe- 'cially designed for usein connection with a saw-machine in which the bed thereofis angularlyadjustable. Y

An further Objectis the production of a saw guard as mentioned which will bey highly eiiicient -in usejand of durable and i' economical construction. c,

Other objects will appear'hereinafter. The invention consists in the combinations-and arrangements'o parts hereinafter described and claimed." f

T he invention will be best yunderstood by reference to the,` accompanying drawing,

,formingvua' part of this Specification, and in which 1 i Figure 1` is aj front elevation of a saw v machine equipped with a saw guard enr ,v'bodving the invention,

v .Y v S* 'tlie'base of the machine being broken away,

4oV l l' elements oftheV guardproper which permits Fig. 2 isa side elevation of the constructionfshown inFig. 1,7the lower portion of Fig. 3 is a rear elevation of the guard VFig. l is an endelevation thereon l Y.

Fig.` isa top plan view thereof,

, -FigLf6' is a sectional detail view illus- V'trating the conneotionwbetween the guard proper' andthe guide rods, j Fig. 7 is a'detail ve'rticalrsectionV illustratingthe connection betweenlthe two vertical of free vertical movement of one of said kelements relative to the other, and

Fig. 8 is'an enlarged' detail section taken fOn lineam of Fig.;7. y

The preferred VVii'orm 'of' construction as '.illustratedein'the V,drawings is shown em- 'ployed .inconnection with a` saw machine ycomprising a base, 1,- a bed 2"mounted for angularv adjustm"ent uponlsaid base and a saw blade 3 which 'projects through and l A'above the bed 2 inthe u'sual manner.

The guard mechanism forming the subf-ject lmatter of this application comprises 55 'ay supporting element which comprises a.

Specification of `Letters Patent.

saw-GUARD.

Patented Feb. 12,1918.

application med November 2a. 1915. serialneeasas.

-pair `of spaced parallely bars 4 rigidly secured in and projecting from a plate 5 which is rigidly Vfastened to the baseV 1 of l the saw machine at the rearward side thereof. Upon Vthe outer ends of the members't is adjustably mounted a yoke 6 secured thereto by means of set screws 7 Mounted in the yoke 6 is a second pair of spaced parallel vertically adjustable bars 8 secured in positions of adjustment in yoke 6 by means of set screws 9. The upper ends of bars S are rigidly connected by means of a yoke 10 in which are adjustably mounted forwardly projecting spaced parallel bars 11 secured in positions of adjustment in said yoke 10 by means of set screws 12. At the orward ends of bars 11 is supported a yoke 13 upon the front side of which `is mounted a plate 14:, the latter being pivotally secured to said yoke by means of a forwardly projecting cap screw 15 threaded in said yoke and which projects'through said plate, the head 16 of said screw engagingagainst the front side oi said plate. Also projecting forwardly from the yoke 13 *are` twoY diametrically positioned studs 17 adapted for engagement with either of the two sets of correspondingly positioned perforations formed in plate 14 as Vclearly shown in Fig.'1. The arrangement is such as will be seen that provision is made whereby the plate 14eV may be locked in either of two positions throughk engagement of the Y studs 17 with said perforations. In the disengagement of saidy plate from said studs 17 in order to permit of the adjustment of the former, it is of course necessary to suHiciently loosen the screw 15 to permit of the release of said plate from the outer ends of said studs. will appear asthe description proceeds.

Carried by the plate 111 is a pair of spaced The utility ofthis adjustment parallel guide rods 18 upon the Outer ends 'j of which is mounted the saw guard proper.

Said Vsaw guard 'proper comprises two spaced parallel vertically vdisposed elements or plates 19 and Q0, the velement 19 beingrigidly vfastened by means of fastening devices 29. to anY engaging element 21 in which are l! formed openings 21 and 21 for engage-1r )pent with the outer ends of guiderods 18.

The element 21 is formed in two half parts which are connected together by bolts 23 and cooperating nuts, rollers 24, as clearly shown in Fig. 6 ,being loosely mounted on `55; wthe passage ofthe workover the bed :ofthe said bolts for engagementfwith Vthe corre- Arranged outvvardlyiof ithetelementl is a vertically disposed blade having rear- Wardly projecting lugs or flanges 26 which overlap with the lower portion of the.jele--bolts 28 1s of course of advantage in adjustf nient 21, being fastened `thereto by means -o'f headed bolts 28 threaded into `said Velement 21 as clearlyV shoWnin Fig. 8.- rlphe lugs 26 .are ,provided with elongated-:transversely ,eX-

Y tending .'slots.27 :for `.registration `with the bolts `28 1in .order to permit ,of adjustmentrof i the -;plat,e-25 toward and fromflthe element 19,

upon unscrewing .of the bolts r28, as Will be readily understood.- 'Y `Also lformed upon the .upper side tof `the =base portion 4of element 21 are Vribs 1.2 9fwhich :engage with ftheslots 27 VVin order to maintain the parallel relation ,of

fp'late125 4Withthe Telement 19 in the adjust- `mentyof vsaid .parts toward and lfrom Veach Y ;othe1'. The upper endsvor heads of bolts28 -,are provided'with square sockets :o r recesses Y as seen Yfor -.the reeeptionioff a2-key an the ro- :t'ative:adju s'tm'ent of said bolts. Y

` i I The :plate 2;5 .serves .merelyas a suppor `for "the ,guar-jd felementz20,r said ,plate `being Y provided adjacent its ends with ltwo sets ,of forWardl-y projecting studs `which `:loosely engage with `vertically -extending lelongated eslotsgl formed the .element 2O as Clearly :ishownin :Fi-gs.1,-,3` and 7. 1n orderto hold the lelement20 in 4position lupon said studs iplates32 :are fastened upon .the outer en ds .of

said studs Whichfloosely ,engages against fthe front side vof.s aidelementas will be readily understoodV Upon said studsBO 4aregprd f `,vi'eiled ,rollers `ladapted,to engage against H thesidesofslots Blin order toalleviate ,triction `and thus permit v off freeuvertical move- `I nent of ,element .20 relative .to .the element 119.V I Eormedat the ifront' ends of elements 1.9 Vand V2O are yinclined surfaces 341 which serve :to guide the work passed over theA bed offthesaw machine `under said elements 19 irand:20,ftheilatter being pushed upwardly by 1 understood 1 i Whenathe guard -.fa.jsawanachine the elements 19 and'20zgas- (che Work in v:this Voperation;as will ibe vreadily mechanism is to sume positionsat 'oppositeY sidesof the :saw

` gbladathusfserving ,'asefectua'lmeans of L'pjguardigng the same. ,T he loose'-mounting `ot the element 2-1 upon the-guide rods 18 val-1 {lows'the gguardto slide upwardly thereon in (machine. By .reason of thefree vertical i movement permittedthe element 20 Arelative 1&9 thegelementill it will bes'eenfthat-no'matbe .in veontactjvvith the machine'bedf so as to f. preclude the`pos`sibility "Oiftlieiinge'rsof the 1 Worker passing underthe guard to engagement .Withf-the saw rblade. VThe Vadjustment and iromthe element 19 by adjustment of ingithe f guard to the saw bladefthe4 adjustnient ,which is Vpermitted the supporting elevthe"releasable locking ell'ected 'by studs 17, `the guiderods 18.1nayzberotated upwardly .through 'an angle of .ninety fdegrees and lockedin this positionjn order :to support.

4the guard in anelevated position .above .the y bed of the-'saw machine when .theguard .is not in use. f

While I haveillustratedanddescribedthe fpreferredzorm of constructionfor ,carrying my invention intoelect,` .this-iscapalile of yariation and modificationy Wit-hout depart" ing from the .spiritpofthe linvention I.

desire toavail mysel'foisuchvariationsarid Y i modifications -as come withinfthescope of thefappen'ded claims. Having f describ d claim as newiand desirejtosecure by Letters through' and above said bed, of a guardfcomprisingtwo spaced elements adaptedgtoengage against the upper side of `saidbed at f either side of said sawblade,, oneeofsaidle e 4ments being free forvertical movement-rela-V Y tive to theothel, and saidelementsjbeingad- 1 y justable toward t and from l stantially as described.

V2. The Combination wana aw manine.. comprisinga bedand asawbladegprojeetng throughland above saidfbedgof aguandnom-Tr v prising tvvo 1spaced elements adapted Qta engage against, the,uppensidefof"saidbedat Y either side of saidsawlblade; .elongatedslots provided-yinone ofsaid elements.; and studsr projecting from theother' element loosely' en- ,movement qlfone of saidlelementsrelatiye ,to

[the other, sulistantial1y-asr.described.f` "f t In .testimony vvhereofQ-Ilhave ;si gnedmy2 name to this speciicationqintjhe presence of;

Vtwo subscribing f Witnesses.;V

. .JOSHUA-.R- .H.PortataV f @ein F- Sesma Y" EMERALD insonne.

65 which is permitted the element 20 toward f 85 l. therefore, d oinotvvishito belimited-to .the

' precise detalls of `construction .t set ftorthpgbut

US6299315A 1915-11-23 1915-11-23 Saw-guard. Expired - Lifetime US1255886A (en)

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Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466325A (en) * 1945-07-18 1949-04-05 Kearney & Trecker Corp Saw guard for adjustable-saw saw tables
US2593596A (en) * 1949-03-24 1952-04-22 George V Olson Circular saw guard
US2731049A (en) * 1954-06-10 1956-01-17 Orville C Akin Saw guard assembly for rotary table saws
US2754857A (en) * 1954-11-15 1956-07-17 Herbert A Joslin Guard device for table saws and the like
US5181447A (en) * 1991-03-25 1993-01-26 Timothy Hewitt Adjustable protecting guard apparatus for a blade of a table saw
US5857507A (en) * 1996-09-20 1999-01-12 Black & Decker Inc. Table saw
US20020017181A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Retraction system for use in power equipment
US20020017179A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Miter saw with improved safety system
US20020017180A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake mechanism for power equipment
US20020017183A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Cutting tool safety system
US20020017182A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake positioning system
US20020017175A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Translation stop for use in 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
US20020020262A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Logic control for fast-acting safety system
US20020020271A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Spring-biased brake mechanism for power equipment
US20020020263A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Firing subsystem for use in a fast-acting safety system
US20020056349A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Miter saw with improved 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
US20020059853A1 (en) * 2000-09-29 2002-05-23 Gass Stephen F. Power saw with improved safety system
US20020066346A1 (en) * 2000-09-29 2002-06-06 Gass Stephen F. Miter saw with improved safety system
US20020170399A1 (en) * 1999-10-01 2002-11-21 Gass Stephen F. Safety systems for power equipment
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
US20030058121A1 (en) * 2001-09-24 2003-03-27 Gass Stephen F. Logic control with test mode for fast-acting safety system
US20030090224A1 (en) * 2001-11-13 2003-05-15 Gass Stephen F. Detection system for power equipment
US20030131703A1 (en) * 2002-01-16 2003-07-17 Gass Stephen F. Apparatus and method for detecting dangerous conditions in power equipment
US20030140749A1 (en) * 2002-01-25 2003-07-31 Gass Stephen F. Brake Pawls for power equipment
US20040040426A1 (en) * 2002-08-27 2004-03-04 Gass Stephen F. Miter saw with improved safety system
ES2209646A1 (en) * 2002-12-04 2004-06-16 Benjamin Bello Garcia Protector for cutting disc sawing machines.
US20040173430A1 (en) * 2003-03-05 2004-09-09 Gass Stephen F. Retraction system and motor position for use with safety systems for power equipment
US20050039586A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Brake cartridges for power equipment
US20050041359A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Motion detecting system for use in a safety system for power equipment
WO2005025823A1 (en) * 2003-08-22 2005-03-24 Robert Bosch Gmbh Circular saw bench
US20050139057A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Table saws with safety systems
US20050139459A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Switch box for power tools with safety systems
US20050139058A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Brake cartridges and mounting systems for brake cartridges
US20050155473A1 (en) * 2003-12-31 2005-07-21 Gass Stephen F. Dectection systems for power equipment
US20050178259A1 (en) * 2001-08-13 2005-08-18 Gass Stephen F. Miter saw with improved safety system
US6945149B2 (en) 2001-07-25 2005-09-20 Sd3, Llc Actuators for use in fast-acting safety systems
US20050204885A1 (en) * 2002-01-14 2005-09-22 Gass Stephen F Miter saw with improved safety system
US20050235793A1 (en) * 2004-04-22 2005-10-27 O'banion Michael L Table saw guard
US20050252187A1 (en) * 2000-09-29 2005-11-17 Gass Stephen F Cutting tool safety system
US20060032352A1 (en) * 2000-09-18 2006-02-16 Gass Stephen F Translation stop for use in power equipment
US7055417B1 (en) 1999-10-01 2006-06-06 Sd3, Llc Safety system for power equipment
US20060230896A1 (en) * 1999-10-01 2006-10-19 Gass Stephen F Miter saw with improved safety system
US20060247795A1 (en) * 2005-04-15 2006-11-02 Gass Stephen F Detection systems for power equipment
US7171879B2 (en) 2001-07-02 2007-02-06 Sd3, Llc Discrete proximity detection system
US20070101842A1 (en) * 2003-08-20 2007-05-10 Gass Stephen F Woodworking machines with overmolded arbors
US20070175306A1 (en) * 2003-12-31 2007-08-02 Gass Stephen F Elevation mechanism for table saws
US7284467B2 (en) 2000-08-14 2007-10-23 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US7347851B1 (en) 2004-03-09 2008-03-25 Leo B Kriksunov Needleless hypodermic jet injector apparatus and method
US7350444B2 (en) 2000-08-14 2008-04-01 Sd3, Llc Table saw with improved safety system
US7472634B2 (en) 2003-08-20 2009-01-06 Sd3, Llc Woodworking machines with overmolded arbors
US20090241746A1 (en) * 2008-03-25 2009-10-01 Power Tool Institute Saw accessories and clamp for use therewith
US7712403B2 (en) 2001-07-03 2010-05-11 Sd3, Llc Actuators for use in fast-acting safety systems
US8091456B2 (en) 2008-03-25 2012-01-10 Power Tool Institute Safety devices for saws
US8186255B2 (en) 2000-09-29 2012-05-29 Sd3, Llc Contact detection system 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

Cited By (154)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466325A (en) * 1945-07-18 1949-04-05 Kearney & Trecker Corp Saw guard for adjustable-saw saw tables
US2593596A (en) * 1949-03-24 1952-04-22 George V Olson Circular saw guard
US2731049A (en) * 1954-06-10 1956-01-17 Orville C Akin Saw guard assembly for rotary table saws
US2754857A (en) * 1954-11-15 1956-07-17 Herbert A Joslin Guard device for table saws and the like
US5181447A (en) * 1991-03-25 1993-01-26 Timothy Hewitt Adjustable protecting guard apparatus for a blade of a table saw
US5317944A (en) * 1991-03-25 1994-06-07 Timothy Hewitt Adjustable protecting guard apparatus for a blade of a table saw
US5857507A (en) * 1996-09-20 1999-01-12 Black & Decker Inc. Table saw
US6131629A (en) * 1996-09-20 2000-10-17 Black & Decker Inc. Table saw
US9522476B2 (en) 1999-10-01 2016-12-20 Sd3, Llc Power equipment with detection and reaction systems
US20060179983A1 (en) * 1999-10-01 2006-08-17 Gass Stephen F Brake mechanism for power equipment
US7621205B2 (en) 1999-10-01 2009-11-24 Sd3, Llc Band saw with safety system
US7055417B1 (en) 1999-10-01 2006-06-06 Sd3, Llc Safety system for power equipment
US20060000337A1 (en) * 1999-10-01 2006-01-05 Gass Stephen F Band saw with safety system
US20070028733A1 (en) * 1999-10-01 2007-02-08 Gass Stephen F Safety methods for use in power equipment
US7525055B2 (en) 1999-10-01 2009-04-28 Sd3, Llc Switch box for power tools with safety systems
US7788999B2 (en) 1999-10-01 2010-09-07 Sd3, Llc Brake mechanism for power equipment
US20100236663A1 (en) * 1999-10-01 2010-09-23 Gass Stephen F Power equipment with detection and reaction systems
US20110023673A1 (en) * 1999-10-01 2011-02-03 Gass Stephen F Power equipment with detection and reaction systems
US7347131B2 (en) 1999-10-01 2008-03-25 Sd3, Llc Miter saw with improved safety system
US20060180451A1 (en) * 1999-10-01 2006-08-17 Gass Stephen F Switch box for power tools with safety systems
US7895927B2 (en) 1999-10-01 2011-03-01 Sd3, Llc Power equipment with detection and reaction systems
US20060230896A1 (en) * 1999-10-01 2006-10-19 Gass Stephen F Miter saw with improved safety system
US8196499B2 (en) 1999-10-01 2012-06-12 Sd3, Llc Power equipment with detection and reaction systems
US8408106B2 (en) 1999-10-01 2013-04-02 Sd3, Llc Method of operating power equipment with detection and reaction systems
US20020170399A1 (en) * 1999-10-01 2002-11-21 Gass Stephen F. Safety systems for power equipment
US10335972B2 (en) 1999-10-01 2019-07-02 Sawstop Holding Llc Table Saws
US9969014B2 (en) 1999-10-01 2018-05-15 Sawstop Holding Llc Power equipment with detection and reaction systems
US9925683B2 (en) 1999-10-01 2018-03-27 Sawstop Holding Llc Table saws
US9724840B2 (en) 1999-10-01 2017-08-08 Sd3, Llc Safety systems for power equipment
US7350444B2 (en) 2000-08-14 2008-04-01 Sd3, Llc Table saw with improved safety system
US9038515B2 (en) 2000-08-14 2015-05-26 Sd3, Llc Logic control for fast-acting safety system
US8522655B2 (en) 2000-08-14 2013-09-03 Sd3, Llc Logic control for fast-acting safety system
US20070240786A1 (en) * 2000-08-14 2007-10-18 Gass Stephen F Motion detecting system for use in a safety system for power equipment
US7284467B2 (en) 2000-08-14 2007-10-23 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US7359174B2 (en) 2000-08-14 2008-04-15 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
US7509899B2 (en) 2000-08-14 2009-03-31 Sd3, Llc Retraction system for use in power equipment
US8151675B2 (en) 2000-08-14 2012-04-10 Sd3, Llc Logic control for fast-acting safety system
US8100039B2 (en) 2000-08-14 2012-01-24 Sd3, Llc Miter saw with safety system
US6857345B2 (en) 2000-08-14 2005-02-22 Sd3, Llc Brake positioning system
US7228772B2 (en) 2000-08-14 2007-06-12 Sd3, Llc Brake positioning system
US7225712B2 (en) 2000-08-14 2007-06-05 Sd3, Llc Motion detecting system for use in a safety system for power equipment
US7921754B2 (en) 2000-08-14 2011-04-12 Sd3, Llc Logic control for fast-acting safety system
US7308843B2 (en) 2000-08-14 2007-12-18 Sd3, Llc Spring-biased brake mechanism for power equipment
US20080029184A1 (en) * 2000-08-14 2008-02-07 Gass Stephen F Brake positioning system
US20110023670A1 (en) * 2000-08-14 2011-02-03 Gass Stephen F Power equipment with detection and reaction systems
US20020020263A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Firing subsystem for use in a fast-acting safety system
US20050139051A1 (en) * 2000-08-14 2005-06-30 Gass Stephen F. Brake positioning system
US7832314B2 (en) 2000-08-14 2010-11-16 Sd3, Llc Brake positioning system
US6920814B2 (en) 2000-08-14 2005-07-26 Sd3, Llc Cutting tool safety system
US20020020271A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Spring-biased brake mechanism for power equipment
US20020020262A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Logic control for fast-acting safety system
US20020017178A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Motion detecting system for use in a safety system for power equipment
US7210383B2 (en) 2000-08-14 2007-05-01 Sd3, Llc Detection system for power equipment
US20020017175A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Translation stop for use in power equipment
US20060272463A1 (en) * 2000-08-14 2006-12-07 Gass Stephen F Motion detecting system for use in a safety system for power equipment
US20020017182A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake positioning system
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