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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 |
| 7946039 | Hand-held ratchet tool for moving a pair of jaw members toward and away from each other A ratchet tool has a first jaw member pivotally mounted on a first handle. An elongate linkage has a first end pivotally mounted on a second handle and a second end pivotally connected with a second jaw member on the first jaw member. The second jaw member includes ... | 05/24/2011 |
| 7594333 | Gardening tool with retaining assembly A gardening tool with a retaining assembly includes a first rod pivotally installed to a second rod; the first rod having a track for assembling a retaining portion; the first rod further having an elastic unit at a side having the track; the second rod being rotata... | 09/29/2009 |
| 7371242 | Three pronged lever-action castration tool An easily operated castrating tool that allows placement of an improved continuous elastic band for ligation and removal of an appendage. The present invention includes a tool that allows such bands to be placed in a manner that is significantly more easy to use, an... | 05/13/2008 |
| 7360801 | Door latching system A latching system comprising a base having a first keeper secured thereto, a closable member adapted to engage the base, an elongated member rotatably secured to the closable member, said elongated member including a first connector adapted to engage the first keepe... | 04/22/2008 |
| 7346987 | Cutting tool with work piece feed mechanism A cutting tool having a work piece feed mechanism includes a first jaw and a second jaw connected together for pivotal movement between a closed position and an open position. The work piece feed mechanism includes first and second ratchet members as well as a slide... | 03/25/2008 |
| 7346991 | Hand tool providing double compound leverage to the jaws A hand tool for use by one hand provides double compound leverage of the force exerted on the handles to the jaws. This is achieved by adding additional pivots and lever arms between the handles and the jaws. The jaws may take the form of a sheet metal snip or a pru... | 03/25/2008 |
| 7328513 | Cutter having changeable carrier A cutter includes a lever having a handle on one end and a fixed jaw on the other end and having one or more catches extended from the fixed jaw and having a groove formed in the fixed jaw, a cutter device is pivotally attached to the lever and has a cutter blade mo... | 02/12/2008 |
| 7322111 | Brush cutting device A lever actuated cutting tool that allows ground level cutting of shrubs and small trees from a standing position. The design of the cutting tool takes advantage of the principles of leverage and resistive force, and also incorporates a pendulum swing, to provide a ... | 01/29/2008 |
| 7275323 | Long-handled grass shears with a detachable connecting device A long-handled shears with a detachable connecting device has an operational grip stick with an elongated tube and a wire, a grass shears, and a connecting device attached between the grip stick and the grass shears. The ball is attached to the wire of the grip stic... | 10/02/2007 |
| 7127819 | Ratchet scissors Provided is scissors comprising a movable first handle unit; a stationary second handle unit including a bifurcated jaw, a pivotal blade in the jaw, a spring biased pivotal plate member in the jaw and including teeth, a gear and ratchet wheel assembly, and a spring ... | 10/31/2006 |
| 7122028 | Reconfiguration surgical apparatus A reconfigurable surgical apparatus that includes a surgical instrument assembly that is formed with a hollow manipulation shaft. A linearly or rotationally movable prime mover is received within the shaft and is activated by an actuator located at a proximal end. A... | 10/17/2006 |
| 7080455 | Handheld kitchen scissor/knife appliance A cutting apparatus includes first and second subassemblies. The first subassembly has a first handle and a blade connected to the first handle, the blade including a proximal end portion attached to the handle, a distal end portion, and a cutting edge intermediate ... | 07/25/2006 |
| 7080453 | Manual apparatus for cutting cables to size Manual cutting tools for cutting cables, steel cord, rods to size, the cutting tools including a stationary cutting part connected to a stationary handle, and a movable cutting part adapted to be moved against the stationary cutting part by a movable handle via a tr... | 07/25/2006 |
| 7047853 | Shears A shearing tool has a fulcrum shaft, a first blade rigidly attached to the fulcrum shaft, a first element also rigidly attached to the fulcrum shaft and spaced apart on the shaft from the first blade, and a second blade contiguous with a second element, the second b... | 05/23/2006 |
| 7003885 | Wire nipper A wire cutter having a handle, a fixed cutting blade mounted on the handle, a lever pivotally connected to the handle, and a stop on the lever for engagement with the fixed cutting blade is disclosed. ... | 02/28/2006 |
| 6966114 | Wire nipper A wire cutter having a handle, a fixed cutting blade mounted on the handle, a lever pivotally connected to the handle, and a stop on the lever for engagement with the fixed cutting blade is disclosed. The wire cutter also includes a spring to bias the lever to an â€... | 11/22/2005 |
| 6941663 | Cable cutter In a cable cutter (10) for cutting cables, leads, pipes and the like, two intersecting levers (14, 16) are articulated by a common first pivot joint (12). One of the levers (14, 16) consists of two parts, a front lever section (26)... | 09/13/2005 |
| 6938347 | Shears The invention relates to shears comprising a stationary blade (1) and a movable blade (2) which moves during the shearing movement of the shears. An operating mechanism (5) is arranged to affect a point of the pin (6) located at a distanc... | 09/06/2005 |
| 6813836 | Multi-directional cutting tool A tool for cutting rigid sheet material comprises a first shearing member having a first cutting edge; a second shearing member pivotally connected at one end to the first shearing member, the second shearing member have a second cutting edge engaged with the first ... | 11/09/2004 |
| 6785969 | Tree pruner A tree pruner includes a base member that has a connector connected to a shaft and a main plate longitudinally securely connected to the connector. A first groove is defined in the main plate and downward extends to a periphery of the main plate. A second groove is ... | 09/07/2004 |
| 6772520 | Pruning shears A pair of pruning shears includes a first handle, a blade seat, a blade, a second handle, a connecting member, and a spring. Thus, the spring mounted between the first handle and the second handle is disposed at an oblique state, thereby decreasing the pressing forc... | 08/10/2004 |
| 6766581 | Cable cutter/crimper mechanism A tool for cutting/crimping a workpiece, such as a cable, includes an automatic rapid blade advance such that a blade on a movable jaw of the tool advances toward cutting the cable every time the handles of the tool are closed. The automatic rapid blade advance also... | 07/27/2004 |
| 6754961 | Shears A shearing tool has a fulcrum shaft, a first blade rigidly attached to the fulcrum shaft, a first element also rigidly attached to the fulcrum shaft and spaced apart on the shaft from the first blade, and a second blade contiguous with a second element, the second b... | 06/29/2004 |
| 6752054 | Utility cutting tool having toggle link mechanism field of the invention A utility tool utilizing a toggle link mechanism and a method for using the utility tool for providing a substantial mechanical advantage for a user throughout an entire work operation such as cutting sheet material. The tool comprises an upper handle, a jaw pivotal... | 06/22/2004 |
| 6658967 | Cutting tool with an electroless nickel coating A cutting tool comprising a metal plate having a central aperture, a forwardly extending blade and a rearwardly extending tang having a second aperture offset from the central aperture, wherein the plate is coated with an electroless nickel layer. Also in... | 12/09/2003 |
| 6647630 | Stud punch tool The present invention provides a novel stud punch tool for punching a stud. The tool includes a first member, a second member, a third member pivotally connected to the first and second members, and a punch assembly. The first member has an opening for re... | 11/18/2003 |
| 6640442 | Cutting stroke-adjustable pruning shears A cutting stroke-adjustable pruning shears is constructed to include a fixed jaw and a movable jaw pivoted together, the movable jaw having an elongated slot and a plurality of retaining notches in one long side of the elongated slot, a holder shell, the ... | 11/04/2003 |
| 6591506 | Hand operated end cutting sheet metal shear This invention describes a hand operated, end cutting, sheet metal shear that makes cuts perpendicular to the axis of the tool handle. The shearing surfaces consist of a moving shear blade with a fixed rake angle and shear angle, cutting along a blunt anv... | 07/15/2003 |
| 6539632 | Long handle toenail clipper A balanced Long Handle Toenail Clipper for allowing a person to cut their toenails without the need to bend over or stand, including a cylindrical tubular housing which encloses a plunger rod, finger grips which are attached to the tubular housing, and a ... | 04/01/2003 |
| 6513248 | Power lever cutting device A pruner has a first elongated member and a second elongated member coupled to a metal plate. The metal plate has a central aperture, a forwardly extending blade and a rearwardly extending tang having a second aperture offset from the central aperture. A ... | 02/04/2003 |
| 6332274 | Hand tool having pivoted handles A toggle-link type hand tool is provided that includes pivotally interconnected elements having workpiece engaging members and a pair of handles each operatively connected to a respective one of the pivotally interconnected elements, and a toggle-link ope... | 12/25/2001 |
| 6293019 | Ratchet cable cutter A cable cutting device having one handle of the cutter placed parallel and closely adjacent to the cable which is to undergo cutting. When a cable is about to be cut, the cable and the handle of the cutter are placed in a side by side relationship and bot... | 09/25/2001 |
| 6249977 | Scissors Disclosed is a pair of scissors, more particularly a barber scissors, comprising two scissor halves (3 and 4) that are joined at an axis of rotation (2). Each half has a cutting blade (5 and 6) and a shank (7 and 8) with a grip. The grip of one of the sci... | 06/26/2001 |
| 6185825 | Cable and wire cutters Cable and wire cutters of new design have an outside cutter member containing an arcuate cavity within which an inside cylinderical cutter member rotates about a common pivot axis so separate cutting slots in the outside and inside cutter members cross du... | 02/13/2001 |
| 6112415 | Hookbill wire cutter A hookbill wire cutter specially designed to cut wire mesh components features a pair of opposing handles connected to a pair of jaws. Each jaw features an arcuate blade having a flat cutting portion and a tapered portion. The jaws are pivotally joined to... | 09/05/2000 |
| 6105257 | Remote gripping or cutting apparatus having a rotatable head The invention is an apparatus having opposed jaws remotely located at a distance from actuator for the jaws. In particular, the apparatus has opposed jaws supported rotatably with respect to the actuator for the jaws. More particularly, the apparatus is a... | 08/22/2000 |
| 6044564 | Branch cutter tool A branch cutter tool (1) having two blades (11,12) that are movable in relation to each other, of which one blade (11) is rigidly connected with a housing (2) and the other blade (12) can be moved by an electric motor (5) via a threaded spindle (8), a thr... | 04/04/2000 |
| 6000307 | Utility cutting tool and method A method of cutting is described, utilizing a specialized utility cutting tool. The tool has a fixed jaw, a movable handle, a blade, and a connecting link. The blade is inserted into a channel formed in the fixed jaw for stability, and is pivotally connec... | 12/14/1999 |
| 5771584 | Shear with link interconnected handles A shear device includes a hand grip and a handle pivotally coupled together. A bar has one end pivotally coupled to the handle. A cutter blade has a middle portion pivotally coupled to the hand grip and has a pin secured to one end. A lever has one end pi... | 06/30/1998 |
| 5761815 | Gardening shears A gardening shears is composed of a fixed jaw, a movable jaw fastened pivotally with the fixed jaw, a rocking arm fastened with the fixed jaw and provided with a locating slot, an actuating device linking the movable jaw with the rocking arm, and two hand... | 06/09/1998 |
