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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8176819 | Collision sensing device The invention relates to a collision sensing device which can detect a collision between two or more objects. The collision sensing device comprises a deformable member (5) that defines a space (15) which can be assigned a pressure. In a first conditio... | 05/15/2012 |
| 8079292 | 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... | 12/20/2011 |
| 8065943 | Translation stop for use in power equipment 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... | 11/29/2011 |
| 7900541 | Detection system for power equipment 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 specif... | 03/08/2011 |
| 7421315 | Detection system for power equipment 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 specif... | 09/02/2008 |
| 7398718 | Method for controlling a slicing operation A system and method for tracking and controlling the food product carriage of a food product slicer is described. ... | 07/15/2008 |
| 7326008 | Servo tapping unit with built in shock protection A servo motor in die tapping unit provides built in shock protection for the motor by fixing a shock plate to the servo motor and floatingly mounting the shock plate to a base structure attachable to a stripper plate in a press. Sets of opposing springs allow moveme... | 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 |
| 7258051 | Arrangement for cutting an optical fibre An arrangement for cutting an optical fibre comprises a fibre cutter for cutting the fibre. A motor is provided to operate the cutter. To start a cutting movement, the motor is controlled by a control unit in response to a start signal. The start signal is generated... | 08/21/2007 |
| 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 |
| 7171882 | Knife-like cutting die A knife-like die for cutting a thermoformed plastic article from a sheet of thermoformable plastic. The die includes a die build up plate that is mounted to a first platen and a striker plate that is mounted to a second platen. The die further includes a die board h... | 02/06/2007 |
| 7173537 | Device for protecting against accidental contact and method for protecting against accidental contact of a displaceable part The device according to the invention has a sensor (5) for generating and detecting an electromagnetic field situated in the vicinity of a moving part (1) that should not be touched. The device according to the invention also has an evaluation unit ( | 02/06/2007 |
| 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 |
| 7124670 | Method and apparatus for estimating a life-span of a cutter An apparatus for estimating a lifetime of a cutter for cutting a sheet comprising: a detector for detecting a value of a parameter representing a cutting resistance during sheet cutting; a comparator for comparing the detected value of the parameter with a predeterm... | 10/24/2006 |
| 7104172 | Method for conveying, guiding, and locating a thermoformable web A method for delivering web-supported articles between dies and punches of a trim press. The method includes providing a treadle having an article detector, while moving the web and the articles, guiding the web and the articles along the web and between a pair of t... | 09/12/2006 |
| 7077039 | Detection system for power equipment 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 specif... | 07/18/2006 |
| 7059243 | Positive piece engagement indicator for marking tool A positive piece engagement indicator for marking tool is provided in which a metal workpiece is contacted with a workpiece contact probe for providing physical contact with, as well as electrical communication with the metal surface of a workpiece. A test voltage a... | 06/13/2006 |
| 7055426 | Positive piece engagement indicator for marking tool A positive piece engagement indicator for marking tool is provided in which a metal workpiece is contacted with a workpiece contact probe for providing physical contact with, as well as electrical communication with the metal surface of a workpiece. A test voltage a... | 06/06/2006 |
| 7024975 | Brake mechanism for power equipment 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 on... | 04/11/2006 |
| 6979153 | Deep-grooving insert having stepped cutting edge A deep-grooving chip-forming cutting insert includes a rear mounting portion, a front cutting portion, and a pair of side walls, each side wall extending along the front and rear portions. The front cutting portion includes a front end surface, a top surface, and a ... | 12/27/2005 |
| 6953171 | Apparatus for automatically paying out free end portion of rolled paper A roll shaft 26 supporting rolled paper 20, such as toilet paper rotatably thereon, a pair of feed rollers 32, 34 for paying out the free end portion of the rolled paper 20 which has been paid out continuously from the rolled paper 20 | 10/11/2005 |
| 6939199 | Method and apparatus for cutting semiconductor wafers Improperly mounted wafer saw blades can damage wafers cut or diced with the blades. Embodiments of this invention employ sensors to measure a distance to the blade to help indicate if the blade is improperly mounted. In one method of the invention, a the distance to... | 09/06/2005 |
| 6923104 | Tensive cutting assembly A tensive cutting assembly includes a tensionable cutting member formed of a strip of material, typically metal, which is formed having a serpentine configuration. The tensionable cutting member is removably mounted on a tensive cutting head. The tensive cutting hea... | 08/02/2005 |
| 6889585 | Cutter blade position detection mechanism and method of reporting cutter malfunction A sheet cutting device utilizing cutter blades as a position detection mechanism and a method of reporting cutter malfunctions is provided. The sheet cutting device including a cutter having a pair of cutter blades, one of the blades connected to a cutter driving me... | 05/10/2005 |
| 6845697 | Slicer carriage tracking arrangement A system and method for tracking and controlling the food product carriage of a food product slicer is described. ... | 01/25/2005 |
| 6752046 | Ratchet wrench having a positioning structure A ratchet wrench having a positioning structure includes a wrench body, a cover mounted on the driving head of the wrench body, an elastic plate mounted between the driving head and the cover, and a push plate mounted between the driving head and the cover. The push... | 06/22/2004 |
| 6719468 | Positive piece engagement indicator for marking tool A positive piece engagement indicator for marking tool is provided in which a metal workpiece is contacted with a workpiece contact probe for providing physical contact with, as well as electrical communication with the metal surface of a workpiece. A test voltage a... | 04/13/2004 |
| 6698323 | Apparatus and method for detecting when a web is not being perforated The present invention provides a web perforating apparatus which includes a system for detecting and indicating when a blade in the apparatus is broken, dull or otherwise not perforating the web. The apparatus is typically used with rewinders or other sim... | 03/02/2004 |
| 6309119 | Tape storing and feeding mechanism for mailing machines A high speed, high volume mailing machine which utilizes ink jet technology for the printing of postage indicia on envelopes being fed through the mailing machine and on discrete portions of tape fed past the printing device of the mailing machine include... | 10/30/2001 |
| 6237455 | Knife projection sensing system A knife projection sensing system for cutting machines having a rotatable surface adapted to retain a plurality of cutting knives. The system employs a plurality of sensors mountable to the cutting machine to be stationary with respect to the rotatable su... | 05/29/2001 |
| 6092448 | Slicer with staged dynamic braking system A food slicer for automatic operation having a staged dynamic brake for bringing the slicer carriage to rest at a predetermined location in a smooth manner. A sensor or system of sensors are utilized to detect the slicer carriage location. The sensor outp... | 07/25/2000 |
| 6041682 | Knife fixture with broken blade detector An improved knife fixture is provided of the type having a plurality of knife blades for cutting food products, such as cutting potatoes into elongated French fry strips, wherein the knife fixture includes a detector system and method for promptly indicat... | 03/28/2000 |
| 5904083 | Knife fixture with broken blade detector An improved knife fixture is provided of the type having a plurality of knife blades for cutting food products, such as cutting potatoes into elongated French fry strips, wherein the knife fixture includes a detector system and method for promptly indicat... | 05/18/1999 |
| 5884542 | Method and apparatus for die jam protection/anticipation and correction A method and apparatus for protecting a die from damage due to material jams in material stamping equipment wherein feed material is stamped in a die and then advanced through the die by action of press feed rolls powered by a press feed roll drive motor.... | 03/23/1999 |
| 5862730 | Slicer with staged dynamic braking system A food slicer for automatic operation having a staged dynamic brake for bringing the slicer carriage to rest at a predetermined location in a smooth manner. A sensor or system of sensors are utilized to detect the slicer carriage location. The sensor outp... | 01/26/1999 |
| 5857393 | Automatic paper feeding apparatus An automatic paper feeding apparatus has a holder device holding a roll form paper, a feeder device having two roller portions mutually contacting to each other for rotation in mutually opposite directions, the feeder device clamping the paper between the... | 01/12/1999 |
| 5718615 | Semiconductor wafer dicing method A semiconductor wafer dicing saw is controlled by monitoring blade exposure from a flange holding the blade during the wafer dicing process. As the wafer is cut and separated into discrete electronic chips, the dicing blade wears. As the blade is brought ... | 02/17/1998 |
| 5630348 | Slicing machine with circular blade A slicing machine in which the clamping device for pressing the product on the slicing machine carriage toward the stop plate is provided with a device for inactivating the blade motor and the drive for the stop plate so that, when the clamping device is ... | 05/20/1997 |
| 5575202 | Safety device in a platen press for processing plate-like workpieces A safety device which prevents a gripping bar from being squeezed in a platen press that processes plate-like workpieces. This press comprises a fixed upper beam and a movable lower beam which is raised recurrently by a driving device. The safety device c... | 11/19/1996 |
| 5538490 | Safety bar mechanism and sheet processing device having a safety bar mechanism A safety bar mechanism and sheet processing device having a safety bar mechanism, with which such an accident that the operator's hand is pinched between a table and peripheral devices etc. can be positively avoided whatever direction an external force ex... | 07/23/1996 |
