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| Number | Title | Issue Date |
| 8186255 | Contact detection system for power equipment 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 ... | 05/29/2012 |
| 8136434 | Cutting blade control system, particularly for cutting-off machines for cutting logs of web material A control device for a cutting blade, particularly for cutting-off machines for logs of web material, interrupts operation of the cutting blade when deformation of the blade reaches a preset deformation value and resumes operation of the cutting blade when the defor... | 03/20/2012 |
| 8122798 | Power cutting tool with proximity sensing system A power cutting tool includes a cutting surface, a conductive structure, and first electrode matrix comprising an array of electrical conductors. A moveable blade used to cut an object is located on the cutting surface. When at least one electrical conductor of the ... | 02/28/2012 |
| 8100039 | Miter saw with safety system 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... | 01/24/2012 |
| 8074546 | Pyrotechnic drop mechanism for power tools A saw includes a surface defining an opening therein, a plate structure configured to be attached to the saw below the surface, and an arm attached to the plate structure about a first shaft. A blade is configured to be engaged with the arm at a location spaced from... | 12/13/2011 |
| 8061246 | Miter saw with improved safety system 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... | 11/22/2011 |
| 8051759 | Motion detecting system for use in a safety system for power equipment 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 ... | 11/08/2011 |
| 8051758 | Injury mitigation system for power tools A power tool comprises a detection system for detecting a situation where an operator using a power tool of the type which has an exposed rotating component contacts the rotating component, and a protection system for minimizing the possibility of an operator being ... | 11/08/2011 |
| 8006595 | Apparatus and method for detecting dangerous conditions in power equipment 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. ... | 08/30/2011 |
| 7895927 | Power equipment with detection and reaction systems 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 and a reaction system associated with the detection system. The reaction system can include ... | 03/01/2011 |
| 7789002 | Table saw with improved safety system 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 t... | 09/07/2010 |
| 7685912 | Miter saw with improved safety system 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... | 03/30/2010 |
| 7681479 | Motion detecting system for use in a safety system for power equipment 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... | 03/23/2010 |
| 7661343 | Brake mechanism for power equipment 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... | 02/16/2010 |
| 7644645 | Apparatus and method for detecting dangerous conditions in power equipment 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,... | 01/12/2010 |
| 7628101 | Pyrotechnic drop mechanism for power tools A saw comprises a surface having an opening defined therein, a plate structure configured to be attached to the saw below the surface, and an arm pivotally attached to the plate structure about a first shaft. A blade is configured to be engaged with the arm at a loc... | 12/08/2009 |
| 7617752 | Contact detection system for power equipment 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 ... | 11/17/2009 |
| 7509899 | Retraction system for use in power equipment 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 assoc... | 03/31/2009 |
| 7484444 | Cutting device with a pair of cutting blades and elements for detecting and controlling wear of the cutting blades A cutting device having a holding element for holding a workpiece, a pair of cutting blades for cutting the workpiece held by the holding element, the cutting blades being adapted to be rotated, a wear amount detecting element for detecting the amount of wear of eac... | 02/03/2009 |
| 7377199 | Contact detection system for power equipment 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 t... | 05/27/2008 |
| 7357056 | Cutting tool safety system 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... | 04/15/2008 |
| 7353737 | Miter saw with improved safety system 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... | 04/08/2008 |
| 7350444 | Table saw with improved safety system 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 position... | 04/01/2008 |
| 7350445 | Brake cartridge for power equipment 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 cartrid... | 04/01/2008 |
| 7347131 | Miter saw with improved safety system 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... | 03/25/2008 |
| 7325437 | Long reach press The present invention is a long reach press comprising a low force actuator for operably urging first tooling into a working position. It further includes an opposed high force actuator for operably urging second tooling into engagement with the first tooling. The l... | 02/05/2008 |
| 7308843 | Spring-biased brake mechanism for power equipment 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 at least one brake component a... | 12/18/2007 |
| 7290472 | Miter saw with improved safety system 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... | 11/06/2007 |
| 7284467 | Apparatus and method for detecting dangerous conditions in power equipment 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. ... | 10/23/2007 |
| 7231856 | Apparatus and method for detecting dangerous conditions in power equipment 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,... | 06/19/2007 |
| 7228855 | Method for cutting a single crystal ingot The object of the present invention is to provide a method whereby it is possible to cut a single crystal ingot comparatively accurately while allowing resulting slices to have a flat surface, and to lengthen the life of the blade more than would be possible with co... | 06/12/2007 |
| 7228772 | Brake positioning system 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 ... | 06/12/2007 |
| 7225712 | Motion detecting system for use in a safety system for power equipment 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... | 06/05/2007 |
| 7210387 | Vertical band saw machine A vertical band saw machine includes a base, an upright post extending from the base, amounting frame slidably retained relative to the upright post, upper and lower blade mounting pulleys and a tension-equalizing guider pulley rotatably mounted on the mounting fram... | 05/01/2007 |
| 7210383 | Detection system for power equipment 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 con... | 05/01/2007 |
| 7197969 | Logic control with test mode for fast-acting safety system 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 per... | 04/03/2007 |
| 7178436 | Method of cutting carbon and alloy steel The present invention discloses a method and apparatus for controlling the load on the blade of a steel-cutting saw A programmable logic controller senses the spindle motor load current and compares it with the desired optimum operating current. Variations in hardne... | 02/20/2007 |
| 7171879 | Discrete proximity detection system 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 dang... | 02/06/2007 |
| 7148453 | Control unit with thermal protection and an electrical heating device comprising the control unit An overheating protection system for a control unit includes an interrupter element, which, in its initial position defined with respect to a circuit board, electrically connects the opposite facing ends of at least one track on the circuit board, and an actuating e... | 12/12/2006 |
| 7137326 | Translation stop for use in power equipment Woodworking machines are disclosed having cutting tools movable into a cutting zone for cutting workpieces. The machines include a detection system adapted to detect one or more dangerous conditions between a person and the cutting tool, and a reaction system adapte... | 11/21/2006 |
