US2517649A - Blade guard - Google Patents

Blade guard Download PDF

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Publication number
US2517649A
US2517649A US8649349A US2517649A US 2517649 A US2517649 A US 2517649A US 8649349 A US8649349 A US 8649349A US 2517649 A US2517649 A US 2517649A
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blade
guard
slot
fig
invention
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Frechtmann Jean
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Frechtmann Jean
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B29/00Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
    • B26B29/02Guards or sheaths for knives
    • B26B29/025Knife sheaths or scabbards
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q13/00Equipment for use with tools or cutters when not in operation, e.g. protectors for storage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B29/00Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
    • B26B29/02Guards or sheaths for knives

Description

Patented Aug. 8, 1950 UNITED STATES PATENT OFFICE BLADE GUARD Jean .Frechtmann, Paris, France Application April 9, 1949, Serial Nb. 86,493

3 Claims. 1

The present invention relates to a guard for the blades of cutting and similar articles and utensils, such as knives, saws, ice skates and the like.

It is an object of the present invention to provide a simple and convenient guard for blades of the character described which may be easily and readily placed, over the blade to keep its cutting edge safe and secure from damage, and safely and securely held in place thereon.

It is also an object of the present invention to provide a blade guard of the character described which may be readily prefabricated or adapted by the user to conform to the shape of any particular blade with which it is intended to be used and to be fitted around the corners of blades.

It is another object of the present invention to i provide a blade of the character described whose shape may be readily and conveniently changed from one to another so that it may be readily and easily transferred from one use to another.

It is a further object of the present invention to provide a blade guard of the character described which is of simple construction, which need not be prefabricated as to size and shape specifically for use with any particular article, but which may be readily adapted for use with any article by cutting it to size and forming it to shape.

The foregoing and other advantages and superiorities of the blade guard of the present invention will become more readily apparent to those skilled in the art from the embodiment thereof shown in the accompanying drawings and from the description following. It is to be understood, however, that such embodiment is shown by way of illustration only to make the principles and practice of the present invention more readily comprehensible, and without any intent of limiting the invention to the specific details therein shown.

In the drawings:

Fig. l is a fragmentary view in elevation of a cutting implement, shown as a knife, with a blade guard of the present invention in position thereon;

Fig. 2 is an enlarged fragmentary view of the blade guard of Fig. 1 shown prepared for shaping to conform to the curvature and the point of the blade;

Fig. 3 is a section taken on line 3-3 of Fig. 2;

Fig. 4 is an end view of the guard of Fig. 1 showing a retaining clip in place thereon;

Fig. 5 is a view in elevation of the clip shown in Fig. 4

Fig. 6 is a vertical sectional view through a modified form of guard shown as modified to receive another form of the clip;

Fig. 7 is an end View of the guard of Fig. 6; and,

Fig. 8 is a perspective of the retaining clip shown in Fig. 7.

Referring more specifically to the accompanying drawing, the blade guard of the present invention comprises a solid rod, ll], of an easily flexible, synthetic, organic, plastic material of any suitable type, a number of which are known in the market. An inwardly directed slot, H, is formed in the rod, preferably with rounded edges, i2, and extending to a depth greater than half its thickness and also preferably, of a slightly inwardly increasing width, which slot is adapted to receive therewithin and fit over the cutting edge of the blade, l3, such as of the knife, M, or of a saw or ice skates or the like.

The rod in is provided with a longitudinally or axially disposed aperture or passageway, l5, below the slot 1 l, and, if desired, also with similar apertures, l6, one to each side of the slot l I.

It will be apparent that the rod I B, being easily flexible may be bent to conform to curved or other types of uneven edges. However, in order to set the rod iii in the conformed shape to prevent its resiliently returning to its initial straight shape, there is arranged within the passageway I5 a stiff, rigid non-resilient element, such as a metal wire, ll, which, though it may be bent to any desired shape or curvature will remain in the bent shape and thus keep the rod [0 in the set shape preventing its return to its inital shape. If desired, additional element I! may be inserted in passageways 16.

In order to facilitate or make possible easier and more extreme shaping of the rod Ill, the rod it may be preformed or may be provided after formation and cutting to size, with. cut out notches, 8, at its top through the walls of the slot 5 I, to remove excess material, at intervals spaced in accordance with the desired curvature intended, to facilitate its bending and to relieve any counter pressure due to compression that may tend to straighten it out. It is thus possible by closely spacing a number of notches, as at l8 and iii" to enable the shaping and bending of the guard around a point as illustrated in Figs. 1 and 2 of the drawing.

In order to more securely and safely retain the guard ii! over a blade, end clips, 20, may be provided in one form of U-shape, and they may be of resilient construction, and the legs 2!, which may converge slightly, may be inserted into the ends of the passageways I6 to press the two sides of the slot ll against the blade.

In the embodiment of Figs. 6 to 8 inclusive, wherein the passageways 16 are ommitted, horseshoe shaped recess 22, may be formed in the end of the guard I around the slot H in which may be inserted a horseshoe shaped resilient clip 23, the ends of which will likewise act to press the sides of the slot l l towards one another.

This completes the description of the several embodiments of the blade guard of the present invention. It will be readily apparent that it may be cheaply and economically produced in standard lengths from which it may be cut to size; that it may be readily shaped by the user by a simple operation of forming darts or notches therein to substantially any desired curvature; that it will remain firmly in adjusted shape; and that it will be held safely and securely on a blade to aflord it ample and effective protection against damage.

It will also be apparent that numerous modifications and variations in the blade guard of the present invention may be made by anyone skilled in the art, in accordance with the principles of the invention hereinabove set forth and without the use of any inventive ingenuity. I desire. therefore, to be protected for any and all such modifications and variations that may be made therein within the spirit of the invention and the scope of the claims hereto appended.

What I claim is:

1. A blade guard of the character described,

comprising a readily flexible, organic, synthetic, plastic rod, adapted to be readily cut by a knife,

said rod having a slot formed longitudinally thereof extending its length and a substantial part of its thickness, said rod having a passageway formed therethrough longitudinally thereof below said slot and passageways formed therethrough to each side of said rod, a rigid, flexible, non-resilient metallic wire disposed at least in the passageway below said slot, and a substantially U-shaped resilient clip, having slightly converging arms adapted to have said arms inserted in the ends of said passageways to the sides of said slot to press the sides of said slot towards one another.

2. The blade guard of claim 1 wherein said rod is of cylindrical form and said slot is radially disposed therein.

3. The blade guard of claim 1 wherein said slot widens slightly inwardly and is formed with rounded edges to facilitate insertion of a blade.

JEAN FRECI-ITMANN.

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

UNITED STATES PATENTS Number Name Date 1,011,613 Grasselly Dec. 12, 1911 1,178,533 Mitchell Apr. 11, 1916 1,593,935 Gerick et a1 July 27, 1926 1,838,492 Meyers Dec. 29, 1931 2,053,707 Farmer Sept. 8, 1936 2,344,575 Warren Mar. 21, 1944

US2517649A 1949-04-09 1949-04-09 Blade guard Expired - Lifetime US2517649A (en)

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Cited By (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756790A (en) * 1955-05-27 1956-07-31 Syndbad Andy Saw blade protecting device
US2870947A (en) * 1955-03-22 1959-01-27 Adolph R Hendry Spur guard
US3129731A (en) * 1960-10-17 1964-04-21 Mc Culloch Corp Chain saw protector
US3326250A (en) * 1965-01-29 1967-06-20 Jr Charles B Kephart Chain saw and protective cover therefor
US3637231A (en) * 1970-08-04 1972-01-25 Russell A Weidenbacker Ice skate edge guard
US4651990A (en) * 1984-05-21 1987-03-24 Grant Profit Protective device for goaltender hockey stick
US4962581A (en) * 1988-05-20 1990-10-16 Rutigliano Edmond P Blade sheath for use in cleaning a meat slicer blade and method of use thereof
US20020017179A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Miter saw with improved 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
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
US20020020271A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Spring-biased brake mechanism for power equipment
US20020056350A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Table saw with improved safety system
US20020056348A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Miter saw with improved safety system
US20020059855A1 (en) * 2000-09-29 2002-05-23 Gass Stephen F. Miter saw with improved safety system
US20020066346A1 (en) * 2000-09-29 2002-06-06 Gass Stephen F. Miter saw with improved safety system
US20020133952A1 (en) * 2001-03-22 2002-09-26 Edwin Kenny Knife blade guard
WO2002076690A1 (en) * 2001-03-22 2002-10-03 Edwin Kenny Knife blade guard
US20020166784A1 (en) * 2001-05-08 2002-11-14 Barham William Gene Locking trowel covers
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
US20030090224A1 (en) * 2001-11-13 2003-05-15 Gass Stephen F. Detection system for power equipment
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
US20050139459A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Switch box for power tools with safety systems
FR2866260A1 (en) * 2004-02-13 2005-08-19 Sandrine Roynel Pocket knife fastening device, has sleeve including slot and contacting knife`s handle on which blade is maintained by spring force, when blade is inserted in sleeve, where part of sleeve encircling slot has curved shape
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
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
US7171879B2 (en) 2001-07-02 2007-02-06 Sd3, Llc Discrete proximity detection system
US7197969B2 (en) 2001-09-24 2007-04-03 Sd3, Llc Logic control with test mode for fast-acting safety system
US7210383B2 (en) 2000-08-14 2007-05-01 Sd3, Llc Detection system for power equipment
US7231856B2 (en) 2001-06-13 2007-06-19 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US7290472B2 (en) 2002-01-14 2007-11-06 Sd3, Llc Miter saw with improved safety system
US7347851B1 (en) 2004-03-09 2008-03-25 Leo B Kriksunov Needleless hypodermic jet injector apparatus and method
US7350445B2 (en) 2003-08-20 2008-04-01 Sd3, Llc Brake cartridge for power equipment
US7350444B2 (en) 2000-08-14 2008-04-01 Sd3, Llc Table saw with improved safety system
US7353737B2 (en) 2001-08-13 2008-04-08 Sd3, Llc Miter 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
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
US7536238B2 (en) 2003-12-31 2009-05-19 Sd3, Llc Detection systems for 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
US7827890B2 (en) 2004-01-29 2010-11-09 Sd3, Llc Table saws with safety systems and systems to mount and index attachments
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
US7921754B2 (en) 2000-08-14 2011-04-12 Sd3, Llc Logic control for fast-acting safety system
US8065943B2 (en) 2000-09-18 2011-11-29 Sd3, Llc Translation stop for use in power equipment
US8082825B2 (en) 2009-06-09 2011-12-27 Butler David J Health and safety system for a table saw
US8459157B2 (en) 2003-12-31 2013-06-11 Sd3, Llc Brake cartridges and mounting systems for brake cartridges
US9724840B2 (en) 1999-10-01 2017-08-08 Sd3, Llc Safety systems for power equipment

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US1011613A (en) * 1910-09-02 1911-12-12 Adrian Grasselly Antiseptic spoon.
US1178533A (en) * 1916-01-07 1916-04-11 Jesse J Mitchell Knife.
US1593935A (en) * 1925-09-03 1926-07-27 George W Lyle Knife guard
US1838492A (en) * 1930-07-07 1931-12-29 Challenge Machinery Co Knife guard
US2053707A (en) * 1934-08-22 1936-09-08 Gordon C Farmer Tool guard
US2344575A (en) * 1941-01-21 1944-03-21 Harold B Warren Method of manufacturing molding strips

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1011613A (en) * 1910-09-02 1911-12-12 Adrian Grasselly Antiseptic spoon.
US1178533A (en) * 1916-01-07 1916-04-11 Jesse J Mitchell Knife.
US1593935A (en) * 1925-09-03 1926-07-27 George W Lyle Knife guard
US1838492A (en) * 1930-07-07 1931-12-29 Challenge Machinery Co Knife guard
US2053707A (en) * 1934-08-22 1936-09-08 Gordon C Farmer Tool guard
US2344575A (en) * 1941-01-21 1944-03-21 Harold B Warren Method of manufacturing molding strips

Cited By (105)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870947A (en) * 1955-03-22 1959-01-27 Adolph R Hendry Spur guard
US2756790A (en) * 1955-05-27 1956-07-31 Syndbad Andy Saw blade protecting device
US3129731A (en) * 1960-10-17 1964-04-21 Mc Culloch Corp Chain saw protector
US3326250A (en) * 1965-01-29 1967-06-20 Jr Charles B Kephart Chain saw and protective cover therefor
US3637231A (en) * 1970-08-04 1972-01-25 Russell A Weidenbacker Ice skate edge guard
US4651990A (en) * 1984-05-21 1987-03-24 Grant Profit Protective device for goaltender hockey stick
US4962581A (en) * 1988-05-20 1990-10-16 Rutigliano Edmond P Blade sheath for use in cleaning a meat slicer blade and method of use thereof
US8408106B2 (en) 1999-10-01 2013-04-02 Sd3, Llc Method of operating power equipment with detection and reaction systems
US7055417B1 (en) 1999-10-01 2006-06-06 Sd3, Llc Safety system for power equipment
US7621205B2 (en) 1999-10-01 2009-11-24 Sd3, Llc Band saw with safety system
US7788999B2 (en) 1999-10-01 2010-09-07 Sd3, Llc Brake mechanism for power equipment
US7895927B2 (en) 1999-10-01 2011-03-01 Sd3, Llc Power equipment with detection and reaction systems
US9925683B2 (en) 1999-10-01 2018-03-27 Sawstop Holding Llc Table saws
US9969014B2 (en) 1999-10-01 2018-05-15 Sawstop Holding Llc Power equipment with detection and reaction systems
US9724840B2 (en) 1999-10-01 2017-08-08 Sd3, Llc Safety systems for power equipment
US9522476B2 (en) 1999-10-01 2016-12-20 Sd3, Llc Power equipment with detection and reaction systems
US8196499B2 (en) 1999-10-01 2012-06-12 Sd3, Llc Power equipment with detection and reaction systems
US7024975B2 (en) 2000-08-14 2006-04-11 Sd3, Llc Brake mechanism for power equipment
US8522655B2 (en) 2000-08-14 2013-09-03 Sd3, Llc Logic control for fast-acting safety system
US9038515B2 (en) 2000-08-14 2015-05-26 Sd3, Llc Logic control for fast-acting safety system
US8191450B2 (en) 2000-08-14 2012-06-05 Sd3, Llc Power equipment with detection and reaction systems
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
US7921754B2 (en) 2000-08-14 2011-04-12 Sd3, Llc 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
US7832314B2 (en) 2000-08-14 2010-11-16 Sd3, Llc Brake positioning system
US20020017183A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Cutting tool safety system
US7681479B2 (en) 2000-08-14 2010-03-23 Sd3, Llc 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
US7610836B2 (en) 2000-08-14 2009-11-03 Sd3, Llc Replaceable brake mechanism for power equipment
US7350444B2 (en) 2000-08-14 2008-04-01 Sd3, Llc Table saw with improved safety system
US6857345B2 (en) 2000-08-14 2005-02-22 Sd3, Llc Brake positioning system
US7308843B2 (en) 2000-08-14 2007-12-18 Sd3, Llc Spring-biased brake mechanism for power equipment
US7225712B2 (en) 2000-08-14 2007-06-05 Sd3, Llc 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
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
US7137326B2 (en) 2000-08-14 2006-11-21 Sd3, Llc Translation stop for use in power equipment
US7100483B2 (en) 2000-08-14 2006-09-05 Sd3, Llc Firing subsystem for use in a fast-acting safety system
US6957601B2 (en) 2000-08-14 2005-10-25 Sd3, Llc Translation stop for use in power equipment
US6920814B2 (en) * 2000-08-14 2005-07-26 Sd3, Llc Cutting tool safety system
US7509899B2 (en) 2000-08-14 2009-03-31 Sd3, Llc Retraction system for use in power equipment
US8065943B2 (en) 2000-09-18 2011-11-29 Sd3, Llc Translation stop for use in power equipment
US6826988B2 (en) 2000-09-29 2004-12-07 Sd3, Llc Miter saw with improved safety system
US8061245B2 (en) 2000-09-29 2011-11-22 Sd3, Llc Safety methods for use in power equipment
US6994004B2 (en) 2000-09-29 2006-02-07 Sd3, Llc Table saw with improved safety system
US20060123964A1 (en) * 2000-09-29 2006-06-15 Gass Stephen F Table 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
US6945148B2 (en) 2000-09-29 2005-09-20 Sd3, Llc Miter saw with improved safety system
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
US20020066346A1 (en) * 2000-09-29 2002-06-06 Gass Stephen F. Miter saw with improved safety system
US7377199B2 (en) 2000-09-29 2008-05-27 Sd3, Llc Contact detection system for power equipment
US6880440B2 (en) 2000-09-29 2005-04-19 Sd3, Llc Miter saw with improved safety system
US7357056B2 (en) 2000-09-29 2008-04-15 Sd3, Llc Cutting tool safety system
US20020056348A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Miter saw with improved safety system
US6877410B2 (en) 2000-09-29 2005-04-12 Sd3, Llc Miter saw with improved safety system
US7784507B2 (en) 2000-09-29 2010-08-31 Sd3, Llc Router with improved safety system
WO2002076690A1 (en) * 2001-03-22 2002-10-03 Edwin Kenny Knife blade guard
US20020133952A1 (en) * 2001-03-22 2002-09-26 Edwin Kenny Knife blade guard
US6491162B2 (en) 2001-05-08 2002-12-10 William Gene Barham Trowel cover
US20020166784A1 (en) * 2001-05-08 2002-11-14 Barham William Gene Locking trowel covers
US7017739B2 (en) 2001-05-08 2006-03-28 William Gene Barham Locking trowel covers
WO2002090000A3 (en) * 2001-05-08 2003-04-24 William Gene Barham Locking trowel covers
WO2002090000A2 (en) * 2001-05-08 2002-11-14 William Gene Barham Locking trowel covers
US9927796B2 (en) 2001-05-17 2018-03-27 Sawstop Holding Llc Band saw with improved safety system
US20020170400A1 (en) * 2001-05-17 2002-11-21 Gass Stephen F. 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
US7171879B2 (en) 2001-07-02 2007-02-06 Sd3, Llc Discrete proximity detection system
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
US7353737B2 (en) 2001-08-13 2008-04-08 Sd3, Llc Miter saw with improved safety system
US6997090B2 (en) 2001-08-13 2006-02-14 Sd3, Llc Safety systems for power equipment
US20060123960A1 (en) * 2001-08-13 2006-06-15 Gass Stephen F Safety systems for power equipment
US20030037651A1 (en) * 2001-08-13 2003-02-27 Gass Stephen F. Safety systems for power equipment
US20040163514A1 (en) * 2001-08-13 2004-08-26 Gass Stephen F. 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
US20030090224A1 (en) * 2001-11-13 2003-05-15 Gass Stephen F. Detection system for power equipment
US7290472B2 (en) 2002-01-14 2007-11-06 Sd3, Llc Miter saw with improved safety system
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
US7350445B2 (en) 2003-08-20 2008-04-01 Sd3, Llc Brake cartridge for power equipment
US8087438B2 (en) 2003-12-31 2012-01-03 Sd3, Llc Detection systems for power equipment
US8122807B2 (en) 2003-12-31 2012-02-28 Sd3, Llc Table saws with safety systems
US7707920B2 (en) 2003-12-31 2010-05-04 Sd3, Llc Table saws with safety systems
US7991503B2 (en) 2003-12-31 2011-08-02 Sd3, Llc Detection systems for power equipment
US7536238B2 (en) 2003-12-31 2009-05-19 Sd3, Llc Detection systems for power equipment
US7866239B2 (en) 2003-12-31 2011-01-11 Sd3, Llc Elevation mechanism for table saws
US8459157B2 (en) 2003-12-31 2013-06-11 Sd3, Llc Brake cartridges and mounting systems for brake cartridges
US8489223B2 (en) 2003-12-31 2013-07-16 Sd3, Llc Detection systems for power equipment
US8498732B2 (en) 2003-12-31 2013-07-30 Sd3, Llc Detection systems for power equipment
US9623498B2 (en) 2003-12-31 2017-04-18 Sd3, Llc Table saws
US7827893B2 (en) 2003-12-31 2010-11-09 Sd3, Llc Elevation mechanism for table saws
US20050139459A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Switch box for power tools with safety systems
US8505424B2 (en) 2004-01-29 2013-08-13 Sd3, Llc Table saws with safety systems and systems to mount and index attachments
US7827890B2 (en) 2004-01-29 2010-11-09 Sd3, Llc Table saws with safety systems and systems to mount and index attachments
FR2866260A1 (en) * 2004-02-13 2005-08-19 Sandrine Roynel Pocket knife fastening device, has sleeve including slot and contacting knife`s handle on which blade is maintained by spring force, when blade is inserted in sleeve, where part of sleeve encircling slot has curved shape
US7347851B1 (en) 2004-03-09 2008-03-25 Leo B Kriksunov Needleless hypodermic jet injector apparatus and method
US7481140B2 (en) 2005-04-15 2009-01-27 Sd3, Llc Detection systems for power equipment
US8082825B2 (en) 2009-06-09 2011-12-27 Butler David J Health and safety system for a table saw

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