US 7,357,056 B2
Cutting tool safety system
Stephen F. Gass, Wilsonville, Oreg. (US); David A. Fanning, Vancouver, Wash. (US); and J. David Fulmer, Tualatin, Oreg. (US)
Assigned to SD3, LLC, Tualatin, Oreg. (US)
Filed on Jul. 25, 2005, as Appl. No. 11/190,111.
Application 11/190111 is a continuation of application No. 09/676190, filed on Sep. 29, 2000, granted, now 7,055,417.
Application 09/676190 is a continuation of application No. 09/929221, filed on Aug. 13, 2001.
Application 09/929221 is a continuation of application No. 09/929226, filed on Aug. 13, 2001, granted, now 6,920,814.
Application 09/929226 is a continuation of application No. 09/929227, filed on Aug. 13, 2001.
Application 09/929227 is a continuation of application No. 09/929234, filed on Aug. 13, 2001.
Application 09/929234 is a continuation of application No. 09/929235, filed on Aug. 13, 2001.
Application 09/929235 is a continuation of application No. 09/929236, filed on Aug. 13, 2001.
Application 09/929236 is a continuation of application No. 09/929237, filed on Aug. 13, 2001.
Application 09/929237 is a continuation of application No. 09/929238, filed on Aug. 13, 2001.
Application 09/929238 is a continuation of application No. 09/929240, filed on Aug. 13, 2001, granted, now 7,100,483.
Application 09/929240 is a continuation of application No. 09/929241, filed on Aug. 13, 2001, granted, now 7,024,975.
Application 09/929241 is a continuation of application No. 09/929242, filed on Aug. 13, 2001.
Application 09/929242 is a continuation of application No. 09/929425, filed on Aug. 13, 2001, granted, now 7,137,326.
Application 09/929425 is a continuation of application No. 09/929426, filed on Aug. 13, 2001.
Application 09/929426 is a continuation of application No. 09/955418, filed on Sep. 17, 2001, granted, now 6,957,601.
Application 09/955418 is a continuation of application No. 10/047066, filed on Jan. 14, 2002, granted, now 6,945,148.
Application 10/047066 is a continuation of application No. 10/052705, filed on Jan. 16, 2002, granted, now 6,994,004.
Application 10/052705 is a continuation of application No. 10/053390, filed on Jan. 16, 2002.
Application 10/053390 is a continuation of application No. 10/100211, filed on Mar. 13, 2002.
Application 10/100211 is a continuation of application No. 10/146527, filed on May 15, 2002.
Application 10/146527 is a continuation of application No. 10/172553, filed on Jun. 13, 2002.
Application 10/172553 is a continuation of application No. 10/189027, filed on Jul. 02, 2002.
Application 10/189027 is a continuation of application No. 10/189031, filed on Jul. 02, 2002, granted, now 7,171,879.
Application 10/189031 is a continuation of application No. 10/197975, filed on Jul. 18, 2002, abandoned.
Application 10/197975 is a continuation of application No. 10/202928, filed on Jul. 25, 2002, granted, now 7,000,514.
Application 10/202928 is a continuation of application No. 10/205164, filed on Jul. 25, 2002, granted, now 6,945,149.
Application 10/205164 is a continuation of application No. 10/243042, filed on Sep. 13, 2002, granted, now 7,197,969.
Application 10/243042 is a continuation of application No. 10/251576, filed on Sep. 20, 2002, abandoned.
Application 10/251576 is a continuation of application No. 10/292607, filed on Nov. 12, 2002, granted, now 7,077,039.
Application 10/292607 is a continuation of application No. 10/341260, filed on Jan. 13, 2003.
Application 10/341260 is a continuation of application No. 10/345630, filed on Jan. 15, 2003.
Application 10/345630 is a continuation of application No. 10/643296, filed on Aug. 18, 2003, abandoned.
Application 10/643296 is a continuation of application No. 10/785361, filed on Feb. 23, 2004, granted, now 6,997,090.
Application 10/785361 is a continuation of application No. 10/794161, filed on Mar. 04, 2004, granted, now 7,098,800.
Application 10/794161 is a continuation of application No. 10/923273, filed on Aug. 20, 2004.
Application 10/923273 is a continuation of application No. 10/923282, filed on Aug. 20, 2004, abandoned.
Application 10/923282 is a continuation of application No. 10/923290, filed on Aug. 20, 2004.
Application 10/923290 is a continuation of application No. 10/932339, filed on Sep. 01, 2004.
Application 10/932339 is a continuation of application No. 10/984643, filed on Nov. 08, 2004.
Application 10/984643 is a continuation of application No. 11/026006, filed on Dec. 31, 2004.
Application 11/026006 is a continuation of application No. 11/026114, filed on Dec. 31, 2004.
Application 11/026114 is a continuation of application No. 11/027254, filed on Dec. 31, 2004.
Application 11/027254 is a continuation of application No. 11/027322, filed on Dec. 31, 2004, abandoned.
Application 11/027322 is a continuation of application No. 11/027600, filed on Dec. 31, 2004.
Application 11/027600 is a continuation of application No. 11/045972, filed on Jan. 28, 2005.
Application 11/045972 is a continuation of application No. 11/061162, filed on Feb. 18, 2005.
Application 11/061162 is a continuation of application No. 11/098984, filed on Apr. 04, 2005.
Application 11/098984 is a continuation of application No. 11/107499, filed on Apr. 15, 2005.
Claims priority of provisional application 60/667485, filed on Mar. 31, 2005.
Prior Publication US 2005/0252187 A1, Nov. 17, 2005
This patent is subject to a terminal disclaimer.
Int. Cl. B23D 19/00 (2006.01); B23D 45/16 (2006.01)
U.S. Cl. 83—478  [83/58; 83/62.1; 83/DIG. 1; 83/490; 83/471.3; 83/581; 30/382; 30/391] 1 Claim
OG exemplary drawing
 
1. A safety mechanism for protecting a user from a cutting edge of a circular blade in a power tool, the safety mechanism comprising:
a guard disposed proximate to the blade, the guard enclosing at least a portion of the cutting edge of the blade to provide a barrier between the enclosed portion of the cutting edge and the user, said guard operable to move between a first position and a second position, where said second position encloses a greater portion of the cutting edge than the first position;
an engagement member disposed on said guard and operable to contact said cutting edge of the blade, where contact of said engagement member with the blade causes said guard to move from said first position to said second position; and a trigger device operable to deploy said engagement member into contact with the blade.