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| Number | Title | Issue Date |
| 7594665 | Quick-release jaws with a single-piece bearing chuck A workholding chuck can use actuating members that pivot within a non-split unitary front bearing. The non-split unitary front bearing can include pockets in its central bore that can allow a spherical section of an actuator arm to be inserted into the bearing. The ... | 09/29/2009 |
| 6997656 | Device and assembly for holding an object A device for holding an object, and an assembly for holding and rotating an object. The device includes a base, a series of posts, each of which is equidistant from a center point of reference and further pivotably holds a follower rotationally linked to all other f... | 02/14/2006 |
| 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 |
| 5895059 | High speed lathe chuck A lathe chuck assembly is configured for high-speed turning operations. The assembly includes a riser adapter and a yolk plate movably connected with respect to the riser adapter. First, second and third cam arms are connected to the yolk plate for graspi... | 04/20/1999 |
| 5509336 | Apparatus for supporting and restraining a log of paper during the cutting thereof by a log-saw The apparatus for holding a log or long roll (L) of web material during the cutting thereof along a plane perpendicular to the log axis, includes: a plurality of clamping elements distributed in a circle around the log (L). The clamping elements can be mo... | 04/23/1996 |
| 5135242 | Adjustable chuck for gripping workpieces of different sizes at controlled pressures In an adjustable chuck for gripping workpieces of different sizes, three jaws are mounted for relative movement. A hydraulically driven mechanism is operable selectively for closing the jaws to grip a workpiece and for opening the jaws to free the workpie... | 08/04/1992 |
| 4824126 | Power chuck The power chuck of the invention features a series of rocker arms which are linked by toggles to the chuck's actuator. The rocker arms are mounted on pivot pins which pivot with respect to carriers within the body of the chuck. The center of gravity of th... | 04/25/1989 |
| 4631987 | Power tongs A power tong having a frame with an open throat at one end and a pipe gripping mechanism situated for rotation within the frame, carrying three pipe gripping dies about equally spaced around the longitudinal axis of the pipe. Only one of the pipe gripping... | 12/30/1986 |
| 4593451 | Apparatus for cleaning large pipe threads Apparatus for cleaning each threaded marginal end portion of large pipe. The apparatus has a cleaning head assembly which includes a rotatable member having circumferentially spaced cleaning brushes adjustably mounted thereon so that the cleaning brushes ... | 06/10/1986 |
| 4355816 | Double acting internal diameter gripping chucks A chuck is disclosed for gripping an annular workpiece by jaws clamping against the inside wall of the workpiece. The jaws extend axially of the chuck and are rocked between clamping and release positions by levers which contact the radially outer face of... | 10/26/1982 |
| 4262410 | Protector removal tool Apparatus for removing protective members from the threaded ends of pipe joints. A rotating head assembly is attached for longitudinal movement respective to a main frame having a motor mounted therewithin. The head includes a plurality of protector gripp... | 04/21/1981 |
| 4128043 | Tool changer apparatus There is disclosed a tool changer apparatus for rapid changing of a tool holder in a mill incorporating a draw bar having a gripper mounted on one end thereof for gripping a holding flange formed in a tool holder so retraction of such draw bar will close ... | 12/05/1978 |
| 3986322 | Bagging machine with automatic valve bag placer Bag placing apparatus for use in conjunction with automatic bag filling equipment of the type that fills valve type bags through a horizontal spout that is received within the bag valve when the bag is properly positioned for filling on the spout; such ba... | 10/19/1976 |
