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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Gass; Stephen F.
Address:
Wilsonville, OR
No. of patents:
86
Patents:


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Patent Number Title Of Patent Date Issued
8246059 Mobile base for a table saw August 21, 2012
A mobile base that supports a cabinet saw is disclosed. The mobile base includes casters that support the saw when a foot pedal is depressed. The mobile base raises the saw asymmetrically to provide clearance for the legs of an extension table attached to the table of the saw. A hydrauli
8151675 Logic control for fast-acting safety system April 10, 2012
Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified actio
8079295 Table saw blade guards and blade guard assemblies including lateral blade guards, and table saws December 20, 2011
Table saw blade guards with lateral guards, blade guard assemblies, and table saws including the same. The blade guards include at least one lateral guard that restricts access to a lateral side, or face, of the saw's blade, and may include a top guard. The lateral guard is selective
8079292 Detection system for power equipment December 20, 2011
Woodworking machines including conductive cutters adapted to cut workpieces, and motors adapted to drive the cutters are disclosed. The machines also include a contact detection system adapted to detect contact between a person and the cutter, and to distinguish contact between the p
8065943 Translation stop for use in power equipment November 29, 2011
Woodworking machines are disclosed having a blade adapted to cut workpieces, and an actuating mechanism operable to move the blade toward the workpiece. The machines also include a detection system configured to detect one or more dangerous conditions between a user and the blade, and
8061246 Miter saw with improved safety system November 22, 2011
Miter saws are disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the
8061245 Safety methods for use in power equipment November 22, 2011
Woodworking machines and safety methods for use with those machines are disclosed. The machines include a detection system adapted to detect one or more dangerous conditions between a person and the cutting tools, and a reaction system associated with the detection system. The reaction
8051759 Motion detecting system for use in a safety system for power equipment November 8, 2011
A method of controlling a woodworking machine having a movable cutting tool. The method monitors a signal for a change indicative of a dangerous condition between the cutting tool and a person, senses movement of the cutting tool, and performs an action to mitigate the dangerous conditio
8011279 Power equipment with systems to mitigate or prevent injury September 6, 2011
Woodworking machines are disclosed having cutting tools for cutting workpieces. The machines include a detection system adapted to detect one or more dangerous conditions between a person and the cutting tool. The machines also include a mechanism having a moveable component adapted to
7997176 Table saw throat plates and table saws including the same August 16, 2011
Throat plates for table saws and table saws including the same are disclosed. In some embodiments, the throat plates and/or saws include at least one securement mechanism adapted to secure and prevent inadvertent removal of the throat plate from the throat of the saw. In some embodim
7991503 Detection systems for power equipment August 2, 2011
Improved methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish
7971613 Detection systems for power equipment July 5, 2011
Methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish contact bet
7958806 Replaceable brake mechanism for power equipment June 14, 2011
Woodworking machines are disclosed having cutting tools adapted to cut workpieces. The machines include a safety system adapted to detect one or more dangerous conditions between a person and the cutting tool, and to stop movement of the cutting tool upon detection of the dangerous c
7921754 Logic control for fast-acting safety system April 12, 2011
Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified actio
7908950 Table saw with improved safety system March 22, 2011
A table saw having an adjustable blade, a detection system to detect contact between a person and the blade, and a brake mechanism to engage and stop the blade upon detection of contact between the person and the blade is disclosed. The saw includes a brake positioning system that ad
7900541 Detection system for power equipment March 8, 2011
A machine is disclosed having a detection subsystem adapted to detect contact between a person and a specified portion of the machine, and to distinguish that contact from contact with other materials. The detection subsystem imparts an electrical signal to a specified portion of the
7866239 Elevation mechanism for table saws January 11, 2011
Elevation mechanisms for table saws are disclosed. Embodiments include mechanisms with an elevation carriage, a trunnion structure, and a shaft with a cantilevered portion. The shaft can be fixed to one of the elevation carriage and trunnion structure, and the other of the elevation
7845258 Brake cartridges for power equipment December 7, 2010
Safety systems for power equipment and components and brake cartridges for use in those safety systems are disclosed. The safety systems, components and brake cartridges are specifically applicable for woodworking equipment such as saws. An exemplary brake cartridge includes a housing
7836804 Woodworking machines with overmolded arbors November 23, 2010
Power equipment with various safety systems is disclosed. Table saws with safety systems and/or blade retraction are disclosed. Over-molded arbors are disclosed, including arbors with prepreg over-molding. An electrically non-conductive material may be disposed to electrically insula
7832314 Brake positioning system November 16, 2010
A saw is disclosed having a detection system adapted to detect a dangerous condition between a person and a saw blade, and a brake adapted to stop the saw blade in response to detection of the dangerous condition. The saw further includes a brake positioning system that allows the brake
7827893 Elevation mechanism for table saws November 9, 2010
Table saws with elevation mechanisms are disclosed. One embodiment includes a table saw with a blade, an elevation carriage, a trunnion structure, and a shaft positioned beyond the perimeter of the blade. Another embodiment includes a second shaft interconnecting the elevation carria
7827890 Table saws with safety systems and systems to mount and index attachments November 9, 2010
Table saws having a mounting system configured to hold a riving knife or splitter adjacent a blade. The mounting system includes a clamping structure having a handle adapted to pivot between a first position where the clamping structure is open and a second position where the clamping
7789002 Table saw with improved safety system September 7, 2010
A table saw having a brake mechanism configured to engage and stop a blade is disclosed. The table saw includes a brake positioning system configured to adjust the position of the brake mechanism to maintain the brake mechanism in an operative position relative to the blade as the bl
7788999 Brake mechanism for power equipment September 7, 2010
Woodworking machines are disclosed having cutting tools adapted to cut workpieces. The machines include a detection system adapted to detect one or more dangerous conditions between a person and the cutting tool. The machines also include a brake mechanism having one or more braking
7784507 Router with improved safety system August 31, 2010
A router is described for cutting workpieces with router bits. The router includes a safety system configured to detect one or more dangerous conditions between a person and a router bit. The safety system includes a reaction subsystem configured to perform one or more predetermined
7712403 Actuators for use in fast-acting safety systems May 11, 2010
Cutting machines with high-speed safety systems, and actuators used in high-speed safety systems, are disclosed. The cutting machines may include a detection system adapted to detect a dangerous condition between a cutting tool and a person. A reaction system performs a specified act
7707920 Table saws with safety systems May 4, 2010
Improved table saws and table saws designed to implement safety systems that detect contact between a person and a dangerous portion of the saw are disclosed. The table saws may include an elevation mechanism, a tilt mechanism, and an adjustment system configured to adjust the parallelis
7707918 Detection systems for power equipment May 4, 2010
Improved methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish
7698976 Miter saw with improved safety system April 20, 2010
A miter saw is disclosed having a base, a blade supported by the base, a detection system adapted to detect contact between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous
7685912 Miter saw with improved safety system March 30, 2010
Miter saws are disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the
7681479 Motion detecting system for use in a safety system for power equipment March 23, 2010
A woodworking machine including a detection system adapted to detect a dangerous condition between a person and a working portion of the machine is disclosed. The machine includes a reaction system associated with the detection system to cause a predetermined action to take place relativ
7661343 Brake mechanism for power equipment February 16, 2010
Brake pawls for use in safety systems for power equipment are disclosed. The brake pawls include an energy-absorbing region. The energy absorbing regions may include a deformable or collapsible region made from apertures in the brake pawl or from collapsible members or from materials
7644645 Apparatus and method for detecting dangerous conditions in power equipment January 12, 2010
A machine such as a saw, jointer, planer, etc. is disclosed. The machine has cutting tool, a direct drive mechanism configured to move the cutting tool, a detection system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool, and a reaction system
7640837 Table saw with improved safety system January 5, 2010
A table saw having an adjustable blade, a detection system to detect contact between a person and the blade, and a brake mechanism to engage and stop the blade upon detection of contact between the person and the blade is disclosed. The saw includes a brake positioning system that ad
7640835 Apparatus and method for detecting dangerous conditions in power equipment January 5, 2010
Woodworking machines are disclosed having electrically conductive cutting tools adapted to cut workpieces. The machines include a contact detection system capacitively coupled to the cutting tool, and adapted to detect contact between a person and the cutting tool. The machines also incl
7621205 Band saw with safety system November 24, 2009
A band saw including a frame, at least two, spaced apart, rotatable wheels supported by the frame, a blade looped around the wheels, where rotation of at least one wheel causes the blade to move around the wheels, a detection system adapted to detect a dangerous condition between a perso
7617752 Contact detection system for power equipment November 17, 2009
A woodworking machine having one or more dangerous portions is disclosed. The machine also includes a safety system configured to detect accidental contact between a person and at least one of the dangerous portions by electrically coupling a signal to the person's body, and detecting if
7600455 Logic control for fast-acting safety system October 13, 2009
Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified actio
7591210 Discrete proximity detection system September 22, 2009
A machine is described having at least one dangerous portion. The machine also includes a safety system to detect dangerous proximity between a person and the dangerous portion and perform a predetermined action to limit or prevent injury to the person from the dangerous portion.
7540334 Power tools June 2, 2009
An electrically powered hand tool is disclosed. The tool includes a motor, a power source, a work element and a controller. Various alternative features, embodiments and operative configurations are disclosed.
7536238 Detection systems for power equipment May 19, 2009
Improved methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish
7525055 Switch box for power tools with safety systems April 28, 2009
Switch boxes for power tools with safety systems are disclosed. The switch boxes are particularly useful for woodworking equipment such as table saws equipped with safety systems that detect and react to dangerous conditions. The switch boxes may include a power switch, a start/stop
7509899 Retraction system for use in power equipment March 31, 2009
Woodworking machines are disclosed having movable cutting tools for cutting workpieces in a cutting region. The machines include a detection system adapted to detect one or more dangerous conditions between a person and the cutting tools, and a reaction system associated with the det
7481140 Detection systems for power equipment January 27, 2009
Improved methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish
7472634 Woodworking machines with overmolded arbors January 6, 2009
Power equipment with various safety systems is disclosed. Table saws with safety systems and/or blade retraction are disclosed. Over-molded arbors are disclosed for use in power equipment with safety systems and/or blade retraction.
7421315 Detection system for power equipment September 2, 2008
A machine is disclosed having a detection subsystem adapted to detect contact between a person and a specified portion of the machine, and to distinguish that contact from contact with other materials. The detection subsystem imparts an electrical signal to a specified portion of the
7377199 Contact detection system for power equipment May 27, 2008
A woodworking machine having one or more dangerous portions of the machine is disclosed. The machine also includes a safety system configured to detect accidental contact between a person and at least one of the dangerous portions by electrically coupling a signal to the person's bod
7359174 Motion detecting system for use in a safety system for power equipment April 15, 2008
A woodworking machine including a detection system adapted to detect a dangerous condition between a person and a working portion of the machine is disclosed. The machine includes a reaction system associated with the detection system to cause a predetermined action to take place relativ
7357056 Cutting tool safety system April 15, 2008
A woodworking machine is disclosed. The machine includes a cutting tool and a motor adapted to drive the cutting tool. The machine further includes a detection system to detect a dangerous condition between the cutting tool and a person, such as a person coming into contact with the
7353737 Miter saw with improved safety system April 8, 2008
A miter saw is disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the
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