Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7270506 | Tool assembly A tool assembly in which a tool is removably secured to a tool holder. A sleeve of the tool is first fitted onto a shaft of the tool holder and then, by symmetrically radially expanding the shaft, the tool is secured to the tool holder. ... | 09/18/2007 |
| 6939213 | Quick change adaptor for rotary machines In one embodiment, the present invention includes an apparatus including an adaptor body having a first end to be coupled to a rotary device and a second end having a tapered portion, and a tool adaptor dimensioned to fit within the tapered portion, the tool adaptor... | 09/06/2005 |
| 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 |
| 6742786 | Clamping jaw A clamping jaw for a tool holder chuck, wherein the clamping chuck has two clamping jaws arranged spaced apart and diametrically opposite one another relative to an axis of rotation of the clamping chuck and moveable toward and away from one another for clamping a t... | 06/01/2004 |
| 6641145 | Miniature drill chuck A miniature drill chuck has a drill chuck housing and a thrust member positioned in the interior for moving clamping jaws into their clamping position during a threading movement of the drill chuck housing onto a machine spindle. The thrust member is long... | 11/04/2003 |
| 6168170 | Chuck with jaw blade rotational stop A chuck is provided for use with a manual or powered driver, such as a drill. The chuck has a body member with angularly disposed passageways formed therethrough. A plurality of jaws are slidably positioned within the angularly disposed passageways. The j... | 01/02/2001 |
| 5944327 | Collet chuck device A collet chuck device has a body member with a frustoconical recess defined therein. A collet is disposed within the recess. A nut member is rotationally configured on the body member to move the collet axially within the recess. The nut member has an out... | 08/31/1999 |
| 5913524 | Chuck with gripping mechanism stop A chuck for use with a manual or powered driver having a drive shaft is provided. A generally cylindrical body has a forward section and a rearward section, the rearward section adapted to mate with the drive shaft of the driver. A gripping mechanism is a... | 06/22/1999 |
| 5911421 | Sealed collet having improved radial flexibility for facilitating removal from a locknut A sealed collet having improved radial flexibility is provided for facilitating removal from a locknut of a chuck assembly. The sealed collet includes a collet body formed from a tubular configuration of elongated gripping fingers separated by elongated s... | 06/15/1999 |
| 5867912 | Adjustable surgical handle A handle assembly having a swivel head for detachably holding a blade, includes a substantially elongate handle having a proximal end and a distal end, the proximal end is formed with a threaded shank having a having a hemispherical socket at the end ther... | 02/09/1999 |
| 5788248 | Collet chuck device A quick release chuck device includes a body member and a device for attaching the body member to a drive spindle. A chamber in the body member receives a conventional collet. Thread grooves are defined on the outer circumferential surface of the body mem... | 08/04/1998 |
| 5657541 | Holder assembly for surgical blade A holder assembly for a surgical blade includes a handle assembly and a wrench for loosening/tightening the blade from/to the handle of the handle assembly. The handle assembly includes a collet having two longitudinal slits that enable the collet to secu... | 08/19/1997 |
| 5620188 | Router collet A router collet for removably attaching a rotary cutting tool to a router drive shaft is provided having a body, a split collet, a nut and a retainer for retaining the collet and nut together to permit free rotation while limiting axial movement therebetw... | 04/15/1997 |
| 5460388 | Endmill adapter with torque reducing locknut and collet interface A toolholder 1 of the type including a collet 5 integrally formed with a shank 3 is provided with an interface between a locknut 7 and collet 13 which substantially reduces the torque required to turn the locknut 7 into a position which radially collapses... | 10/24/1995 |
| 4989887 | Methods and apparatus for adjusting the center of a collet The center of a collet having a plurality of individual gripper members resiliently spaced apart in an annular array and operated on by a frustoconical surface can be adjusted by displacing some of the gripper members more than others of said gripper memb... | 02/05/1991 |
| 4799832 | Ratchet tap wrench A compact tap wrench includes a ring-base, a pair of diametrically opposed handles, and a chuck mechanism friction-fit into the ring-base. A ratchet mechanism is built into one of the handles. The chuck mechanism includes interchangeable jaws for accommod... | 01/24/1989 |
| 4648259 | Adjustable nose piece A nose piece for properly positioning a member in a tool having a pair of symmetrical opposed nose piece members each of which have a longitudinal groove forming an opening therebetween. The nose piece members have opposed faces, one of which lies on the ... | 03/10/1987 |
| 4640517 | Collet chuck A collet chuck has separable jaws which are freely slidable in a housing and have inner and outer faces engageable by inner and outer sleeves respectively, to urge the work-engaging ends of the jaws radially outwardly or radially inwardly. The jaws are re... | 02/03/1987 |
| 4508180 | Cylindrical guide member for an impacting mechanism in a hammer drill A hammer drill includes a tubular guide member for transmitting rotational movement to a tool and an anvil axially displaceably supported in the tubular guide member for imparting impacting force to the tool. An impacting mechanism within a cylindrical gu... | 04/02/1985 |
| 4350840 | Cord grip This is concerned with a cord grip for use with various types of electrical cord and more specifically involves a compression chamber with a distortable grommet which has independent gripper elements that are socketed into the grommet so that the gripper ... | 09/21/1982 |
| 4341006 | Chuck assembly and collet The chuck assembly and the collet for retaining an end mill tool against axial pullout. The collet includes a radially compressible body having a tapered outer surface, a central bore and a drilled radial aperture extending from the outer surface into the... | 07/27/1982 |
| 4119290 | Stand for releasably locking a pole-like member in upright position There is disclosed a stand for releasably locking a pole-like member in upright position, especially for setting up a Christmas tree. The stand has a tubular holder in which are provided several equally plate-shaped clamping members. These clamping member... | 10/10/1978 |
| 3970323 | Chuck for drill A drill chuck having a body adapted for connection to a spindle and a clamping member rotatable on the body and operable to actuate clamping jaws. Cooperating and selectively releasable elements of a spring loaded pawl and ratchet device are carried by th... | 07/20/1976 |
