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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 |
| 7416411 | Medical handpiece having a clamping sleeve for a tool A medical handpiece having an elongate grip part, in the forward end region of which a clamping sleeve is rotatably mounted, in which sleeve a shaft of a tool can be inserted and clamped, wherein the clamping sleeve has at least one axial clamping slot and in its lo... | 08/26/2008 |
| 7347129 | Tool operable for connecting a male F-type coaxial cable connector A tool including a tubular wrench portion and a hollow grasping portion. The tubular wrench portion has a first end, a second end, a hollow body portion located between the first and second ends and a plurality of arc portions located at the first end. The hollow bo... | 03/25/2008 |
| 7316529 | Router bit system A router bit system includes a bit (or bits) and a bit holding assembly for attaching the bit to the drive shaft of a router without the use of additional hand tools. The bit holding assembly, which is attached to the drive shaft of the router, includes a chuck havi... | 01/08/2008 |
| 7278640 | Quick-connect chuck mechanism A chuck is provided for retaining the shank of a tool bit or accessory, having a fixed diameter, inserted in a central channel at a distal end of the chuck. At least one torsion spring is mounted axially within a housing and has an inner dimension and shape comparab... | 10/09/2007 |
| 7216873 | Drill chuck A drill chuck has a chuck body centered on and axis, and a tightening element surrounding the body and rotatable thereon about the axis. The tightening element has a front sleeve formed with jaw-holding guides and a rear sleeve releasably coupled with the front slee... | 05/15/2007 |
| 7159319 | Tube cutter having retractable tool device A tube cutter includes a handle having a chamber to slideably receive a casing of a tool device, the casing includes an aperture and two side openings communicating with a U-shaped groove, a tool member includes a shank rotatably received in the aperture of the casi... | 01/09/2007 |
| 7140817 | Router bit system A router bit system includes a bit (or bits) and a bit holding assembly for attaching the bit to the drive shaft of a router without the use of additional hand tools. The bit holding assembly, which is attached to the drive shaft of the router, includes a chuck havi... | 11/28/2006 |
| 6923605 | Clamping device A clamping device for releasibly fixing one first machine part containing a cone-shape drilled shank to a second machine part containing a female bore. The clamping device comprises an axially movable clamping sleeve inside the second machine part and several clampi... | 08/02/2005 |
| 6863280 | Tool fixing structure A tool fixing structure includes a snap ring, a fixing socket, an elastic member, a fixing rod, an outer socket, and a pressing socket. In such a manner, the screwdriver head is mounted on and detached from the tool fixing structure rapidly, easily and conveniently,... | 03/08/2005 |
| 6315060 | Collet assembly for power tools A collet assembly is provided that securely holds tool bit shafts therein while allowing them to be readily and easily interchanged. The collet assembly herein has a very few number of parts and is easily assembled without the need for any special tools o... | 11/13/2001 |
| 6152643 | Coupling for inserting a soaking bar into a blast furnace tap hole A coupling device for use in inserting a soaking bar into a clay plugged blast furnace tap hole with a rotary percussion tool, having a first axial aperture at a first end adapted to be fitted onto a driving post of a rotary percussion tool, and having a ... | 11/28/2000 |
| 6059493 | Manual machine tool with tool holder and appropriate tool The hand-held machine tool has a tool holder (20) provided with a receptacle (19) into which a shaft portion (15) of a tool (16) is axially insertable. The tool holder (20) has a longitudinal axis (11) and includes a guide device (18) for axially guiding ... | 05/09/2000 |
| 5826888 | Quick release chuck device A quick release chuck device includes a body member and a device for attaching the body member to a drive spindle. A longitudinal bore or recess is defined in the body member and a resilient coiled member gripping device is disposed in the longitudinal re... | 10/27/1998 |
| 5539968 | Part holding press tool with non-magnetic part holding mechanism A workpiece holding press tool with an elongated body having an annular collar extending from an end face and a plug member secured to the collar by a fastener. The plug forms an annular groove with the body that receives a retainer clip which frictionall... | 07/30/1996 |
| 5180259 | Retractable tool bit having latch type catch mechanism A retractable tool bit assembly for a tool such as an allen key. The assembly includes one or more spring loaded nestable or telescoping tubular sections together with a catch mechanism for capturing and holding the tool in its retracted position. The cat... | 01/19/1993 |
| 4982969 | Device for fixing a donor's eyeball The device for fixing a donor's eyeball comprises a body and retainers for holding the donor's eyeball to a support. The body is built up of an inner and an outer portions coaxially fitted one in the other with a possibility of rotating with respect to ea... | 01/08/1991 |
| 4976585 | System for the rapid balancing of revolving shafts, particularly suitable for gas turbines A system for the rapid balancing of revolving shafts, in particular, the revolving shaft of a gas turbine. The system comprises two mutually adjacent bores provided in the stator of the turbine, which can be closed by relevant plugs, and which are collima... | 12/11/1990 |
| 4974477 | Speed wrench The speed wrench includes a plastic handle and a S-curve shaped shaft with a mount to receive tool driving or drilling inserts. The S-curve shaped shaft causes the axis of the tool to intersect the axis of the handle, thereby causing a cone-shaped pattern... | 12/04/1990 |
| 4708039 | Bar feeding apparatus A stock pusher for a bar feed apparatus includes an improved bar gripping collet in which the bar gripping force applied by the collet may be easily adjusted in the field.... | 11/24/1987 |
| 4582332 | Spring chuck A spring chuck has a clamp member opening mechanism comprising a guide groove formed in a rotating shaft and inclined in one direction, a guide groove formed on a wall surface of a bar stopper and inclined in the other direction opposite to the one direct... | 04/15/1986 |
| 4516787 | Lightguide preform chuck A lightguide preform chuck (15) comprises a collet (32) having a slotted conical end (36) and collet restraining means (40/42/45) in engagement with the collet ends but spaced from a collet mid-portion. The restraining means has a coefficient of thermal e... | 05/14/1985 |
| 4292715 | Jewelry clutch A clutch device for holding together two articles of jewelry such as earrings, pins, necklaces, etc. The clutch comprises a tubular housing closed at both ends except for a small central opening in the center of each end. A coil spring is mounted in the h... | 10/06/1981 |
| 4255144 | Device for fixing a dental instrument in a handpiece This fixing device comprises a clamping claw consisting of a pair of diametrally opposed semi-cylindrical curved shells each connected by means of a small bar parallel to the shell generatrices to an end pivot pin, the bars extending on either side of the... | 03/10/1981 |
| 4245709 | Removable drill string stabilizers A stabilizer sleeve, or other sleeve, to be releasably mounted on a drill collar for centering a drill string in a well bore, includes an outer stabilizer sleeve to be mounted on the cylindrical periphery of the drill collar and having an internally threa... | 01/20/1981 |
| 4027136 | Sheet metal collet An automatic device for feeding and welding T-profile button studs to a surface is provided with a collet for retaining and aligning an individual stud in place adjacent a workpiece. The collet is formed of relatively thin sheet metal and is effective to ... | 05/31/1977 |
| 3967831 | Spring coil holding device A spring coil holding device utilizing an integral multi-stage spring coil placed in an actuating sleeve and a housing sleeve, said integral spring coil is actuated to enlarge to a proper caliber by means of said actuating sleeve and housing sleeve for re... | 07/06/1976 |
