Connect public, paid and private patent data with Google Patents Public Datasets

Saw-guard.

Download PDF

Info

Publication number
US1154209A
US1154209A US1914856294A US1154209A US 1154209 A US1154209 A US 1154209A US 1914856294 A US1914856294 A US 1914856294A US 1154209 A US1154209 A US 1154209A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
sections
housing
side
saw
guard
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
John L Rushton
Original Assignee
John L Rushton
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27GACCESSORY MACHINES OR APPARATUS; TOOLS; SAFETY DEVICES, e.g. THOSE FOR SAWS
    • B27G19/00Safety guards or devices specially designed for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/02Safety guards or devices specially designed 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
    • Y10T83/727With means to guide moving work
    • Y10T83/732With guard

Description

J. L. RUSHTON.

SAW GUARD.

APPLICATION FILED AUG. 11. 1914.

PatentedSept. 21, 1915.

Z SHEETS-SHEETI COLUMBIA PLANOORAPH CO.,WASHINGTON, D. c.

J. L. RUSHTON.

SAW GUARD.

APPLICATION FILED AUG. H, 1914.

1,1 54,209. Patented Sept. 21, 1915.

2 SHEETS-SHEET 2.

WTED .%TATE% FATENT @FFTQE.

JOHN L. RUSHTON, OF MUSCATINE, IOWA.

SAW- GUARD.

Application filed August 11, 1914.

To all whom it may concern:

Be it known that 1, JOHN L. RUSHTON, a citizen of the United States, residing at Muscatine, in the county of Muscatine and State of Iowa, have invented certain new and useful Improvements in Saw-Guards, of which the following is a specification.

This invention relates to an improved saw guard which is intended to be used in connection with circular saws, and the principal object of the invention is to provide a saw guard which will completely cover the saw, thus preventing danger of the operator being cut, the guard being so constructed that it may be used when sawing lumber of any thickness through which the saw will pass.

Another object of the invention is to so mount the guard that it may slide longitudinally on its frame or traclr when a piece of lumber is being cut, a spring being provided to return the guard to its normal position after a board has been cut and yieldably hold the guard in the position to cover the saw.

This invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a view in elevation showing the guard in place. Fig. 2 is a top plan view of the guard. Fig. 3 is a longitudinal sectional view through the guard taken along the line 33 of Fig. 2. Fig. 4 is a transverse sectional view taken along the line 1 4 of Fig. 3. Fig. 5 is a fragmentary sectional view showing the manner ofslidably connecting the guard with the track, and also the manner of slidably connecting the sections of the guard.

The main tracks 10 and 11 have their rear end portions bent to form standards 12 and 13, which terminate in feet 14 and 15 which are secured to the underface of the sawing table 16 by the bolts or other fasteners 17. It will thus be seen that the main tracks will be suspended in spaced relation above the sawing table and that the tracks extend upon opposite sides of the circular saw 18, which is rotatably mounted by means of its driving shaft 19 and extends through the slot 20 formed in the sawing table. To the side flanges of the main tracks there have been secured strips of angle iron forming auxiliary track sections 21 and 22, which are positioned in spaced relation to the main track sections, thus leaving space'between Specification of Letters Patent.

Patented Sept. 21, 1915.

Serial No. 856,294.

the same, as shown clearly in Figs. 3, 4: and 5.

The guard or housing, which is intended to inclose the saw, is slidably carried by the track and comprises the upper and lower side sections 23 and 2a and intermediate side sectlons 25 and 26, the upper side sections being connected by the cross bar 27, which engages the longitudinallyextending bar 28 carried by the end wall 29 of the housing. The cross bar 27 and the longitudinally extending bar 28 carry angle strips 30 and 31 which fit into the spaces between the main track sections and auxiliary track sections, as shown in Figs. 4 and 5, thus suspending the housing and permitting the housing to be moved longitudinally. In order to yieldably hold the housing in the normal posi tion, there is provided a strong spring 32 which has one end portion connected with the eye 33 carried by the longitudinally extending bar 28, and has its opposite end portion connected with the eye 34 carried by the block or bridge 35 which connects the free ends of the track sections. The rear end portions of these tracks are connected by the bracing bridge 36, as shown clearly in Fig. 2, and it will thus be seen that these tracks will be securely held at the desired distance apart to permit the housing to slide easily without any danger of the supporting strips 30 and 31 slipping from between the track sections.

The side sections 23, 25 and 26 of the housing each carries a strip 37 which has its side portions bent to form flanges 38 positioned in space relation to'the strip. The sections 25, 26 and 24 each has a strip 39 secured to its upper face, which has its side portions bent to form overhanging flanges which form pockets L0 in which the flanges 38 of the strips 37 fit, thus slidably connecting the side sections of the housing and permitting the side sections to move independently without becoming disconnected. It will be noted, however, that when one set of side sections is moved longitudinally by a board which is being cut, the end wall 29 will be moved, thus expanding the spring. The end wall and the longitudinally extending bar 28 will thus be moved to the position inclicated by dotted lines in Fig. 1 without the remainder of the housing being removed from about the saw. Therefore, the upper portion of the saw which extends through the board will not be exposed, and therefore there is no danger of the operator being cut by the saw. 7

When this device is in use, it is mounted as shown clearly in the drawings, and the piece of lumber which is to be cut is placed upon the cutting'table 16 and moved toward the saw from the open end of the housing. As the piece of lumber reaches the housing, it will engage one or more of the side sections of the housing and will cause either the entire housing or only the lower portion thereof together with the rear wall to be moved to the position indicated by the dotted lines in Fig. 1, thus permitting the saw to cut the board. After the board has been cut, the pieces will be withdrawn from the housing by a transverse movement and the spring will then return the housing to the normal position. I have thus provided a saw guard which will completely cover the saw, thus preventing any danger whatever of the operator being cut when the saw is in use, and also when the saw is running but not in use.

What is claimed is:

1. The combination of a sawing table, tracks extending above said table and in spaced relation thereto, a housing slidably carried by said tracks, said housing comprising side walls formed of a plurality of slidably connected sections positioned in superposed relation, an end wall for said housing, a longitudinally extending bar carried by said end wall and resting upon the inner end portions of the upper sections of said side walls, a cross bar connecting the forward end portions of the upper sections of said side walls, and resilient means connecting said longitudinally extending bar with the forward end portions of said track to yieldably hold said housing in a normal position.

2. A. saw guard comprising tracks, a housing slidably connected with said tracks, said housing comprising side walls formed of sections positioned in superposed relation and slidably connected, a cross bar connecting the forward end portions of said side walls, a rear wall, a longitudinally extending bar carried by said rear wall and resting upon the inner end portions of said side walls and engaging said cross bar, and resilient means having one end portion connected with said longitudinally extending bar and its opposite end portion connected Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

4; In a saw guard, a housing comprising 7 side walls formed of a pluralityof slidably connected sections, a rear wall, a cover formed of forward and rear sections, the forward cover section being secured to the upper sections of the side walls and the rear cover section being secured to said rear wall and slidably engaging the upper sections of said side walls, means for slidably mounting said housing, and means for yieldably holding said housing in a normal position.

5. A saw guard including a housing comprising side walls formed of a plurality of sections positioned in superposed relations,

means for slidably connecting the sections.

of each side wall, a rear wall for said hous- 1ng moving with a selected set of the sections of sa1d side walls, means for slidably mounting said housing and means connected with said rear wall for yieldably holding said housing in a normal position.

6. A saw guard comprising a track, a bar slidably connected with said track, resilient means connected with said track and with said cross bar for yieldably holding said cross bar in a normal position, a rear wall connected with. said cross bar, side walls comprising a plurality of slidably connected sections having their inner ends engaging said rear wall, a cross bar connecting the upper sections of said side walls and engaging said first mentioned cross bar, and means for slidably connecting said second mentioned cross bar with said track.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN L; RUSHTON.

Witnesses:

JAMES T. SIssnL, VVTLL VoDEGnL.

Washington, D. G.

US1154209A 1914-08-11 1914-08-11 Saw-guard. Expired - Lifetime US1154209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1154209A US1154209A (en) 1914-08-11 1914-08-11 Saw-guard.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1154209A US1154209A (en) 1914-08-11 1914-08-11 Saw-guard.

Publications (1)

Publication Number Publication Date
US1154209A true US1154209A (en) 1915-09-21

Family

ID=3222275

Family Applications (1)

Application Number Title Priority Date Filing Date
US1154209A Expired - Lifetime US1154209A (en) 1914-08-11 1914-08-11 Saw-guard.

Country Status (1)

Country Link
US (1) US1154209A (en)

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425331A (en) * 1945-12-13 1947-08-12 Linzie F Kramer Guard device for circular-saw table sawing machines
US20020017175A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Translation stop for use in power equipment
US20020017181A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Retraction system for use in power equipment
US20020017182A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake positioning system
US20020017179A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Miter saw with improved safety system
US20020017183A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Cutting tool 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
US20020017180A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake mechanism for power equipment
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
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
US20020170400A1 (en) * 2001-05-17 2002-11-21 Gass Stephen F. Band saw with improved safety system
US20020170399A1 (en) * 1999-10-01 2002-11-21 Gass Stephen F. Safety systems for power equipment
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
US20040173430A1 (en) * 2003-03-05 2004-09-09 Gass Stephen F. Retraction system and motor position for use with safety systems 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
US20050039586A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Brake cartridges for power equipment
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
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
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
US7210383B2 (en) 2000-08-14 2007-05-01 Sd3, Llc Detection system for power equipment
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
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
US8082825B2 (en) 2009-06-09 2011-12-27 Butler David J Health and safety system for a table saw
US8186255B2 (en) 2000-09-29 2012-05-29 Sd3, Llc Contact detection system for power equipment

Cited By (111)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425331A (en) * 1945-12-13 1947-08-12 Linzie F Kramer Guard device for circular-saw table sawing machines
US7525055B2 (en) 1999-10-01 2009-04-28 Sd3, Llc Switch box for power tools with safety systems
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
US20060000337A1 (en) * 1999-10-01 2006-01-05 Gass Stephen F Band saw with safety system
US7347131B2 (en) 1999-10-01 2008-03-25 Sd3, Llc Miter saw with improved safety system
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
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
US9522476B2 (en) 1999-10-01 2016-12-20 Sd3, Llc Power equipment with detection and reaction systems
US7055417B1 (en) 1999-10-01 2006-06-06 Sd3, Llc Safety system for power equipment
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
US7210383B2 (en) 2000-08-14 2007-05-01 Sd3, Llc Detection system for power equipment
US8151675B2 (en) 2000-08-14 2012-04-10 Sd3, Llc Logic control for fast-acting safety system
US7284467B2 (en) 2000-08-14 2007-10-23 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US20020020263A1 (en) * 2000-08-14 2002-02-21 Gass Stephen F. Firing subsystem for use in a fast-acting 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
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
US8191450B2 (en) 2000-08-14 2012-06-05 Sd3, Llc Power equipment with detection and reaction systems
US7137326B2 (en) 2000-08-14 2006-11-21 Sd3, Llc Translation stop for use in power equipment
US20020017180A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake mechanism for power equipment
US8100039B2 (en) 2000-08-14 2012-01-24 Sd3, Llc Miter saw with 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
US7100483B2 (en) 2000-08-14 2006-09-05 Sd3, Llc Firing subsystem for use in a fast-acting safety system
US7921754B2 (en) 2000-08-14 2011-04-12 Sd3, Llc Logic control for fast-acting safety system
US6857345B2 (en) 2000-08-14 2005-02-22 Sd3, Llc Brake positioning system
US20020017179A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Miter saw with improved safety system
US7832314B2 (en) 2000-08-14 2010-11-16 Sd3, Llc Brake positioning system
US7509899B2 (en) 2000-08-14 2009-03-31 Sd3, Llc Retraction system for use in power equipment
US20050139051A1 (en) * 2000-08-14 2005-06-30 Gass Stephen F. Brake positioning system
US20020017182A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Brake positioning system
US7024975B2 (en) 2000-08-14 2006-04-11 Sd3, Llc 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
US20020017181A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Retraction system for use in power equipment
US6920814B2 (en) 2000-08-14 2005-07-26 Sd3, Llc Cutting tool safety system
US7600455B2 (en) 2000-08-14 2009-10-13 Sd3, Llc Logic control for fast-acting safety system
US20020017175A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Translation stop for use 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
US20020017183A1 (en) * 2000-08-14 2002-02-14 Gass Stephen F. Cutting tool safety system
US7308843B2 (en) 2000-08-14 2007-12-18 Sd3, Llc Spring-biased brake mechanism for power equipment
US7350444B2 (en) 2000-08-14 2008-04-01 Sd3, Llc Table saw with improved safety system
US20060032352A1 (en) * 2000-09-18 2006-02-16 Gass Stephen F Translation stop for use in power equipment
US8065943B2 (en) 2000-09-18 2011-11-29 Sd3, Llc Translation stop for use in power equipment
US7784507B2 (en) 2000-09-29 2010-08-31 Sd3, Llc Router with improved safety system
US6877410B2 (en) 2000-09-29 2005-04-12 Sd3, Llc Miter saw with improved safety system
US20060123964A1 (en) * 2000-09-29 2006-06-15 Gass Stephen F Table saw with improved safety system
US7357056B2 (en) 2000-09-29 2008-04-15 Sd3, Llc Cutting tool safety system
US8061245B2 (en) 2000-09-29 2011-11-22 Sd3, Llc Safety methods for use in power equipment
US20050252187A1 (en) * 2000-09-29 2005-11-17 Gass Stephen F Cutting tool 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
US20020059853A1 (en) * 2000-09-29 2002-05-23 Gass Stephen F. Power saw with improved safety system
US20020059855A1 (en) * 2000-09-29 2002-05-23 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
US20020056349A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Miter saw with improved safety system
US20050274432A1 (en) * 2000-09-29 2005-12-15 Gass Stephen F Router with improved safety system
US20020056350A1 (en) * 2000-09-29 2002-05-16 Gass Stephen F. Table saw with improved safety system
US20020170400A1 (en) * 2001-05-17 2002-11-21 Gass Stephen F. Band saw with improved safety system
US7591210B2 (en) 2001-07-02 2009-09-22 Sd3, Llc Discrete proximity detection system
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
US7353737B2 (en) 2001-08-13 2008-04-08 Sd3, Llc Miter saw with improved safety system
US20040163514A1 (en) * 2001-08-13 2004-08-26 Gass Stephen F. Safety systems for power equipment
US20050178259A1 (en) * 2001-08-13 2005-08-18 Gass Stephen F. 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
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
US7421315B2 (en) 2001-11-13 2008-09-02 Sd3, Llc Detection system for power equipment
US20030090224A1 (en) * 2001-11-13 2003-05-15 Gass Stephen F. Detection system for power equipment
US20050204885A1 (en) * 2002-01-14 2005-09-22 Gass Stephen F Miter saw with improved safety system
US7290472B2 (en) 2002-01-14 2007-11-06 Sd3, Llc Miter saw with improved safety system
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
US20040173430A1 (en) * 2003-03-05 2004-09-09 Gass Stephen F. Retraction system and motor position for use with safety systems for power equipment
US7836804B2 (en) 2003-08-20 2010-11-23 Sd3, Llc Woodworking machines with overmolded arbors
US7472634B2 (en) 2003-08-20 2009-01-06 Sd3, Llc Woodworking machines with overmolded arbors
US20050039586A1 (en) * 2003-08-20 2005-02-24 Gass Stephen F. Brake cartridges for power equipment
US7350445B2 (en) 2003-08-20 2008-04-01 Sd3, Llc Brake cartridge 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
US8489223B2 (en) 2003-12-31 2013-07-16 Sd3, Llc Detection systems for power equipment
US20050139058A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Brake cartridges and mounting systems for brake cartridges
US7991503B2 (en) 2003-12-31 2011-08-02 Sd3, Llc Detection systems for power equipment
US7866239B2 (en) 2003-12-31 2011-01-11 Sd3, Llc Elevation mechanism for table saws
US8087438B2 (en) 2003-12-31 2012-01-03 Sd3, Llc Detection systems for power equipment
US7707920B2 (en) 2003-12-31 2010-05-04 Sd3, Llc Table saws with safety systems
US7827893B2 (en) 2003-12-31 2010-11-09 Sd3, Llc Elevation mechanism for table saws
US9623498B2 (en) 2003-12-31 2017-04-18 Sd3, Llc Table saws
US8498732B2 (en) 2003-12-31 2013-07-30 Sd3, Llc Detection systems for power equipment
US20050155473A1 (en) * 2003-12-31 2005-07-21 Gass Stephen F. Dectection systems for power equipment
US7536238B2 (en) 2003-12-31 2009-05-19 Sd3, Llc Detection systems for power equipment
US20050139057A1 (en) * 2003-12-31 2005-06-30 Gass Stephen F. Table saws with safety systems
US8459157B2 (en) 2003-12-31 2013-06-11 Sd3, Llc Brake cartridges and mounting systems for brake cartridges
US8122807B2 (en) 2003-12-31 2012-02-28 Sd3, Llc Table saws with safety systems
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
US7347851B1 (en) 2004-03-09 2008-03-25 Leo B Kriksunov Needleless hypodermic jet injector apparatus and method
US20060247795A1 (en) * 2005-04-15 2006-11-02 Gass Stephen F Detection systems for power equipment
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

Similar Documents

Publication Publication Date Title
US1553996A (en) Safety saw guard
US982312A (en) Wood-sawing machine.
US2677399A (en) Guide mechanism for power-driven hand held circular saws
US4017A (en) Reid r
US770094A (en) Saw.
US3545504A (en) Multiple band saw
US4009A (en) Sawmill-carriage
US2014A (en) Machine ecu cutting square-joint dovetails
US3722343A (en) Multiple saw lumber trimmer
US1123851A (en) Roller.
US1720535A (en) Automatic guard for saws
US733073A (en) Means for cutting coal, &c.
US615833A (en) Saw-guard
US1013010A (en) Miter-box.
US2789598A (en) Machine for fabricating pieces of lumber
US804514A (en) Abrasive apparatus.
US1092518A (en) Adjustable gage for sawing-machines.
US971146A (en) Slot-guard for paper-trimming machines.
US1809054A (en) Chain feed drive
US812574A (en) Saw-gage.
US1090836A (en) Spring-board.
US3406728A (en) Portable saw table and guide
US731919A (en) Miter-box.
US1891105A (en) Chain saw structure for portable motor tree saws
US683590A (en) Sawmill.