William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Application No. | Application Title | Issue Date |
| 20120103144 | Shaft Securing Mechanism for a Tool A securing mechanism is provided for a tool that allows for the attachment and release of the shafts of a variety of implements from the tool. The mechanism has a construction that provides an easily releasable, but secure engagement of the implement shaft within the me... | 05/03/2012 |
| 20120025475 | CHUCK The invention relates to a chuck with a chuck body (2) having a centering hole (3) that is tapered frustoconically and in which is provided a clamping member (4) having a clamping thread (5), with an angle drive (8) having a threaded r... | 02/02/2012 |
| 20110248455 | SHRINK FIT CHUCK HAVING EXTENSION GROOVES The invention relates to a tool holder comprising a tool receptacle in the form of a sleeve part, which comprises a tool receptacle opening comprising a mating surface which is concentric with the axis of rotation of the tool holder and on which the shaft of a tool inse... | 10/13/2011 |
| 20110233878 | Hand-held power tool In a hand-held power tool having a tool holder equipped with a multisided internal socket for connecting to a first insert bit and with a multisided external socket for connecting to a second insert bit, the tool holder being associated with a locking device for locking... | 09/29/2011 |
| 20110233877 | Fastening Flange in a Power Tool A fastening flange in a power tool for accommodating a tool is provided with a noncircular cross-sectional geometry which has points which rise radially and which are designed in the shape of a circle segment. A connecting line between the centers of adjacent points whi... | 09/29/2011 |
| 20100320645 | DUAL ZONE TEMPLATE CHUCK A template chuck includes multiple zones to provide 1) an imprint bend optimized to provide high curvature and provide contact at middle radius of substrate and/or, 2) separation bend zone with an increased free span zone and high crack angle.... | 12/23/2010 |
| 20100301568 | TOOL MOUNTING DEVICE The tool mounting device according to the invention comprises a first and second coupling device, wherein the first coupling device comprises at least one receptacle, the second coupling device comprises at least one receptacle pin, and the first or second coupling devi... | 12/02/2010 |
| 20100270756 | Rotary cutting tool A chuck for clamping an article has a receiving portion including a receiving bore having a longitudinal axis L, and a radially inwardly facing contoured clamping and receiving inner surface. A clamping sleeve is accommodated in the receiving bore and is rotatable betwe... | 10/28/2010 |
| 20100259017 | IRREGULAR-SHANK TOOLS AND DRIVERS THEREFOR A tool has a distal operative portion and a proximal shank with a mounting portion, for mounting the tool in a holder. A substantial portion of the mounting portion has a cross-sectional shape with at least one and fewer than six 60-degree segments thereof having segmen... | 10/14/2010 |
| 20090184479 | Clamping Tool A clamping tool includes a holder, a connector and a tool. The holder has a rearwardly tapering bore and a holder thread having a first pitch. The connector has a cylindrical shape and a connector through bore. The connector further has a first connector thread having a... | 07/23/2009 |
| 20090174157 | Tool connecting device A tool connecting device includes a mandrel having a non-circular engaging hole for receiving a tool member, and having an outer peripheral recess for forming a peripheral shoulder, and a sleeve slidably engaged onto the mandrel and having a retaining ring frictionally ... | 07/09/2009 |
| 20090072500 | BLADE CLAMP MECHANISM A cutting tool clamp mechanism for a power tool includes a housing supported by a spindle, the spindle being configured to receive and drive a cutting tool along a longitudinal axis of the spindle. A clamping system is supported by the housing and includes an engaging p... | 03/19/2009 |
| 20080211526 | Wafer holder, heater unit used for wafer prober and having wafer holder, and wafer prober By wafer holder including a chuck top for mounting a wafer and a supporter supporting the chuck top and having flatness of at most 0.1 mm, a heater unit for a wafer prober and the wafer prober using the wafer holder, a wafer holder and a wafer prober apparatus hardly de... | 09/04/2008 |
| 20080098584 | Machine for machining optical workpieces, in particular plastic spectacle lenses A machine for machining workpieces, for example plastic spectacle lenses, has a workpiece spindle which rotates the workpiece about a workpiece rotation axis, and a fast tool arrangement which moves a turning tool in the direction to and from the workpiece, wherein the ... | 05/01/2008 |
| 20070296162 | Chuck Having a Rotatable Securing Mechanism A chuck for clamping an article has a receiving portion including a receiving bore having a longitudinal axis L, and a receiving bore inner surface. A clamping sleeve is accommodated in the receiving bore and is rotatable between a releasing position and a securing posi... | 12/27/2007 |
| 20070246899 | Tool Holder for a Rotary Tool The invention proposes a tool holder (1), in particular of the shrink-fit chuck type, the receiving section (5) of which comprises clamping means (9) which are provided centrally with respect to an axis of rotation (7) of the tool holder (... | 10/25/2007 |
| 20070246900 | Collet and lock nut assembly An collet and lock nut assembly includes a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the shank. The collet has a nose portion and a body portion separated by an annular groove. The lock nut has a plural... | 10/25/2007 |
| 20070063454 | Workpiece clamping system A workpiece clamping system with a machine spindle and a clamping chuck has a bayonet lock with projections. The bayonet lock is closed by insertion and turning. The bayonet lock can be clamped or locked, whereby parts of the projections are movable and exert a locking ... | 03/22/2007 |
| 20060017237 | Bayonet collet pickup tool for agile fixturing A bayonet collet pickup tool includes a collet chuck having a collet portion including a bore disposed therein. A collet is held in the bore and is operable therein. A bayonet cap is mounted to an outer surface of the collet chuck proximate the bore. The bayonet cap inc... | 01/26/2006 |
| 20050073115 | Chuck A chuck includes a holder body, a clamp sleeve, and a large number of needle rollers. The holder body has a shank portion, a flange, and a chuck sleeve. The clamp sleeve is fitted onto the outer circumference of the chuck sleeve such that the clamp sleeve is rotatable a... | 04/07/2005 |
| 20050017461 | Coaxial mounting seat for the stank of a toolholder A mounting seat (1) for machine-tools allowing coaxial engagement of the shank (2c) of a toolholder member (2) includes internally a cylindrical bush (3) supporting a plurality of ball bearings (4i) arranged without play ... | 01/27/2005 |