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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7731201 | Work fixing device A work fixing device capable of stably fixing the work, without any biasing, in the longitudinal direction of the work, of the fastening force for fixing the work. The moving mechanism of clamps is constructed by comprising a scroll disc as working disc forming a ci... | 06/08/2010 |
| 7364390 | Drilling tool Disclosed is a drilling tool comprising a first drill bit (2) that is provided with at least two forward cutting edges (4, 5) and a second drill bit (3) which encompasses at least two rear cutting edges (6, 7). A cutting groove (8, 9 | 04/29/2008 |
| 7252580 | Grinder with easily installable/detachable grinding disc A grinder with easily installable/detachable grinding disc, including: a main body in which a driving unit is disposed for driving a rotary shaft, an annular toothed section being formed on the circumference of the rotary shaft; a bracket rotatably disposed under th... | 08/07/2007 |
| 7105338 | Motorized turntable for petri dish Improvements to turntables that facilitate inoculation of petri dishes. In one embodiment, the present invention is a motorized turntable for a petri dish that allows the user to use both hands for inoculation of the petri dish. In another embodiment, the present in... | 09/12/2006 |
| 6932357 | Gear reducing collet nut assembly A gear reducing collet nut assembly is provided for holding a tool bit. The assembly includes an outer grip sleeve that can be rotated to actuate a clamping structure with a bore for holding a tool bit. More specifically, the assembly includes a planetary gear syste... | 08/23/2005 |
| 6913429 | Tooless bit retaining assembly A bit retaining assembly for retaining a bit in a rotary tool, in particular a router such as a hand-held router, a table-mounted router, a pocket cutter, a laminate trimmer, a rotary cutout tool, or the like employs a planetary gear system for multiplying the torqu... | 07/05/2005 |
| 6364320 | Work head for a machine for shaping objects A work head for a machine for shaping objects. The work head has pincher elements actuated by an operating member which is, mounted to slide coaxially inside the body of the work head, and which is hollow to allow the passage of a tube or object that is t... | 04/02/2002 |
| 6220608 | 4-jaw self-centering chucking system The present invention is directed to a chucking system. The body of the chucking system preferably houses cam plates which may be driven manually by an independent worm shaft, or hydraulically by a piston/gear rack in lieu of a worm shaft. A face plate pr... | 04/24/2001 |
| 6139028 | Electric chuck for machine tool and method of opening or closing gripping pawl of same The present invention relates to an electrically driven chuck for holding a chuck of a machine tool, wherein an electrically driven chuck which has no need of any driving means to be exclusively used for a holding chuck, very simplified, and freely adjust... | 10/31/2000 |
| 6079303 | Automatic adjustable power chuck system and method A power chuck system is disclosed featuring a motor, a harmonic drive and a chuck. The harmonic drive is arranged with an input member driven by direct connection with the motor rotor, and an output member directly connected to a long stroke jaw actuation... | 06/27/2000 |
| 6073522 | Adjustable socket An adjustable socket has a number of selectable socket size openings available. It includes a drive member, an indexing collar positioned within the drive member, and an axially moveable drive core positioned within the drive member that is manually rotat... | 06/13/2000 |
| 6059642 | Apparatus for grinding a shank of a drill bit An apparatus for grinding a shank of a drill bit includes a base and several movable jaws supported by the base, that are movable toward each other and away from each other. A support ring is rotatably secured to the base, which has a central opening that... | 05/09/2000 |
| 6038948 | Workpiece spindle device for a machine tool A workpiece spindle device for a machine tool having a drivable workpiece spindle in a spindle housing and including a hydraulic oil supply device with a non-rotating housing portion connected to the spindle housing. An oil control device is connected to ... | 03/21/2000 |
| 5996446 | Size adjustable wrench socket A size adjustable wrench socket is disclosed which has a plurality of jaws which are slidably engaged within a jaw guide for moving radially inward and outward relative to the jaw guide for fitting threaded fasteners of various sizes. A controller sleeve ... | 12/07/1999 |
| 5957466 | Machine chuck A machine chuck (10) having a base (13) to be rotated about a longitudinal axis. Jaw members (20) move relative to the base (13) and radially with respect to the axis. A scroll member (18) is mounted on the base for angular movement relative thereto, whic... | 09/28/1999 |
| 5819607 | Adjustable socket An adjustable socket includes a drive member, a plurality of jaw members supported by the drive member and selectively movable between fixed lateral positions, each fixed lateral position corresponding to a selected socket size, and a drive coupling opera... | 10/13/1998 |
| 5594981 | Apparatus for telescopically assembling a tubing segment on a length of tubing An apparatus is disclosed which has utility for assembling a flexible tubular segment telescopically upon an end portion of a length of tubing when the tubing has an outer diameter which is substantially the same or greater than the inner diameter of the ... | 01/21/1997 |
| 5141239 | Scroll chuck for lathe An improved scroll chuck for holding a workpiece in a lathe including a jaw holder having a front side and a rear side, radially extending slots in the front side and means for attaching the holder to the lathe for turning about a central axis. Two or mor... | 08/25/1992 |
| 5027926 | Slip assembly An hydraulically operated slip assembly useful to grip pipe being run into or pulled from a well. This assembly has upper and lower plates, each having a passage for pipe. Wedges, carrying unique slip systems are positioned around the passages between the... | 07/02/1991 |
| 5000465 | Work-holding apparatus Apparatus is disclosed for holding a generally cylindrical workpiece for honing or otherwise machining an internal bore. The workpiece is held by a gripping surface over most of the innermost turn of a spirally wound torsion band coil. The workpiece is gr... | 03/19/1991 |
| 4838561 | Chuck, particularly for machine tools The chuck includes a structure supporting a table provided with first sliding seats and with second sliding seats which extend radially from the center of the table and respectively accommodate means for centering the workpiece and means for locking the w... | 06/13/1989 |
| 4729702 | Clamping means for taper tool shanks A tool clamping device is provided for quickly and securely clamping rotary tooling adaptors to tool clamp blocks. The device is adaptable to semi-automatic or robotic tool switching operations and minimizes machine downtime.... | 03/08/1988 |
| 4693148 | Glassworking scroll chuck with interchangeable jaws This invention provides a chuck for a glassworking lathe which includes a chuck body rotatable with a drive spindle nose about a longitudinal axis and a handwheel rotatable about the same longitudinal axis. A locking device is provided for releasably lock... | 09/15/1987 |
| 4623154 | Center chuck assembly A center chuck assembly for rotatably supporting the end of a cylindrical workpiece comprises a shaft rotatable in a mounting pipe to be mounted on a receiving member and having an operating flange and a disc formed on the outer end thereof. The disc has ... | 11/18/1986 |
| 4623155 | Drill chuck with radial jaws A drill chuck for a hammer drill apparatus or the like having a plurality of clamp jaws advanceable to and retractable from a chuck drill axis so as to be able to grasp and hold a drill, wherein each of the clamp jaws is advanced into and retracted from a... | 11/18/1986 |
| 4602799 | Hammer-drill chuck A chuck has a chuck body centered on a chuck axis and having an axially forwardly opening and axially centered recess and an adjustment ring rotatable but not axially displaceable on the chuck body, having a central hole aligned with the recess, and forme... | 07/29/1986 |
| 4585240 | Centering and holding device for use with a potter's wheel apparatus Method and apparatus for centrally mounting one circular plate relative to another circular plate. The use of such method and apparatus in conjunction with a device for centering and holding a piece of pottery in a central position relative a potter's whe... | 04/29/1986 |
| 4576254 | Hydraulically actuated slip assembly A hydraulically operated slip assembly, connectible to a well head or well pipe handling machine and useful to intermittently grip pipe being run into or pulled from the well. The slip assembly has upper and lower plates with passages for pipe. Wedges, ca... | 03/18/1986 |
| 4548417 | Reversible chuck A chuck for use in lathes and on other work equipment has a jaw carrier that is mounted in a central bore of a chuck housing on a pair of pivot pins and is capable of being indexed or rotated 180° within the chuck housing while a workpiece is held in chu... | 10/22/1985 |
| 4520966 | Wire canister for a robotic wire harness assembly system A wire canister capable of being used by robots during the assembly of a wire harness. The wire canister is capable of accepting, storing and dispensing random lengths of wire, i.e., a wire segment. The leading and trailing ends of the wire segment are co... | 06/04/1985 |
| 4401308 | Scroll chuck device A scroll chuck device comprising an annular body, a ring plate which is rotatably fitted in the annular body and which has scroll grooves, jaw holders on the ring plate which have clamping jaws and which are engaged in the corresponding scroll grooves so ... | 08/30/1983 |
| 4398733 | Jawed, lathe chuck In the embodiment shown, the chuck comprises a hub rotatably journalled in a jaw carrier, and the latter rotatably journalled in a body. The carrier pivotably mounts a plurality of jaws having camming surfaces, and drive pins upstanding from the hub and t... | 08/16/1983 |
| 4371439 | Cam actuated filter assembly A filter assembly includes a housing for releasably locking to a base for enclosing a replaceable filter element. The base includes a support over which the housing is positioned. The support includes a plurality of radially extending guide pins. A plural... | 02/01/1983 |
| 4272088 | Mechanical concentric support A mechanical concentric support device for use on machine tools such as lathes, precision grinders and the like, for either internal or external engagement of the workpiece by radially extensible support shafts driven by a scroll mechanism. The key connec... | 06/09/1981 |
| 4222577 | Centering and holding devices for potter's wheelhead The centering and holding device of the invention is a relatively simple but practical piece of equipment for attachment to a potter's wheelhead for centering and holding the pot such as a vase, bowl, plate or the like on the said wheelhead. The top plate... | 09/16/1980 |
| 4102539 | Power-actuated chuck, especially for turning machines such as lathes A power-actuated chuck comprises a chuck body in which a plurality of chuck jaws are radially displaceable, each jaw having inclined teeth engageable by a substantially linearly displaceable wedge or camming element on the chuck body. A drive ring is conn... | 07/25/1978 |
| 4094522 | Chuck having radially reciprocating jaws The chuck is for use with turning machines, and includes a chuck body and radially displaceable jaws each movable by a key bar which is guided in the chuck body tangential to the axis of turning, with each key bar having a splined strip meshing with teeth... | 06/13/1978 |
| 4041612 | Jaw tensioning device A device for radially tensioning the jaws of a chuck to permit the jaws to be accurately machined. The device comprises a flat ring coaxially mounted onto the chuck and having a cam slot formed therein for each of the jaws of the chuck. A cam follower is ... | 08/16/1977 |
