Locking Or Positioning Means Patents (Class 279/154)
  • Publication number: 20090315281
    Abstract: The device for fast assembly of a tool on its support comprises a bolt attached to said support and disposed within a bore with a through hole and a mandrel, which is attached to the tool as such and disposed within said through hole and interacting with said bolt. At the junction between the tool and its support, the device comprises centering and locking means which consist of a set of the tenon and mortise type, which set extends perpendicularly to the mandrel and thus forms a T-shaped structure of the assembly, which confers high rigidity to the tool. Said assembly device is in particular suitable for tools such as actuators or pliers, i.e. tools which are utilized in machines for packaging flasks, bottles or the like.
    Type: Application
    Filed: July 20, 2007
    Publication date: December 24, 2009
    Inventors: Philippe Tuauden, Dominique Germain, Eric Devaux
  • Patent number: 6880831
    Abstract: A chuck has a chuck body rotatable about a chuck axis, a plurality of holders angularly spaced about and radially displaceable on the body and each formed with an outwardly flared seat centered on a respective seat axis, and an actuator for radially displacing the holders on the body. Respective jaws on the holders each have an inwardly tapered stem complementary to and engaged snugly in the respective seat. Respective locking elements in the holders are each displaceable into a locking position securing the respective stem in the respective seat.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: April 19, 2005
    Assignee: Rohm GmbH
    Inventor: Johann Taglang
  • Publication number: 20030173749
    Abstract: The subject invention is a master link which comprises a heavy duty roller chain with end hooks and safety pins on each end of the chain. The master link is used in combination with a rotatable chuck, having a head with at least three jaws mounted thereon for radial movement, to hold the jaws in place during remachining operations. The chain is made into a circle with the end hooks engaging rollers of the chain to define a circle of specific size so that when it is applied around the jaws of the chuck, the master link restrains the outward movement of these jaws.
    Type: Application
    Filed: March 12, 2002
    Publication date: September 18, 2003
    Inventor: Marco P. Soto
  • Patent number: 6547259
    Abstract: The jaw assembly includes a master jaw and an insert jaw. An engagement surface on the master jaw provides a mounting surface for the insert jaw. The master jaw is contoured to provide a minimum of mass opposite the mounting surface and opposite the engagement surface to minimize the total rotating mass when the jaw assembly is in operation. In operation, a force is applied substantially perpendicular to the engagement surfaces between the insert jaw and master jaw such that the engagement surface experiences the force rather than the insert fastener.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: April 15, 2003
    Assignee: Dura-Hog, Inc.
    Inventor: Michael Fitzpatrick
  • Patent number: 6478311
    Abstract: An expendable jaw combination for use in connection with a chuck for a lathe, milling machine, or the like to hold work stock. A receiver member is attached to the chuck, and an engagement member is provided in an elongated recess in the receiver member for engaging the stock. The receiver member is preferably constructed of tool material, such as tool steel, while the engagement member may be made of a lower cost material which is easier to work, such as mild steel. After the engagement member is used one or more times, it may be reworked or expended. Locking means are provided for securing the engagement member to the receiver member during use.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: November 12, 2002
    Inventor: Ronald L. Hinson
  • Publication number: 20020038939
    Abstract: The jaw assembly includes a master jaw and an insert jaw. An engagement surface on the master jaw provides a mounting surface for the insert jaw. The master jaw is contoured to provide a minimum of mass opposite the mounting surface and opposite the engagement surface to minimize the total rotating mass when the jaw assembly is in operation. In operation, a force is applied substantially perpendicular to the engagement surfaces between the insert jaw and master jaw such that the engagement surface experiences the force rather than the insert fastener.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 4, 2002
    Inventor: Michael Fitzpatrick
  • Patent number: 5979914
    Abstract: A lathe chuck jaw assembly utilizes top jaws which have replaceable inserts mounted to their clamping faces. The inserts are used to provide a contact surface to hold a workpiece during machining. The contact surfaces of the inserts may be machined for matching a particular workpiece shape such as round stock, hex stock, square stock, or custom configurations. A boring ring is installed between the top jaws and rotated so that the inserts may be symmetrically machined. Alternatively, a polygonal insert blank having congruent sections which are joined with keys along their outer sides may be loaded in the lathe chuck and machined for a particular workpiece. A pad adapter base for supporting a hardened collet pad is also disclosed.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: November 9, 1999
    Inventor: Peter A. Reyes
  • Patent number: 5944331
    Abstract: The master jaws in a three jaw chuck are located and maintained in position by a spacer having two plates which are located adjacent one another along edges which are inclined approximately 7.degree. from the vertical. One plate is generally rectangular. The other plate is generally trapezoidal. Sliding the plates along the inclined edges positions one edge of the rectangular plate against one of the master jaws and the two edges of the generally trapezoidal plate against the other two master jaws. The relative movement of the plates changes the position of the outer edges of the plates which allows for the master jaws to make contact with the plates at different positions to allow for positioning of the soft jaws for machining.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: August 31, 1999
    Inventor: Johnny Kim
  • Patent number: 5791661
    Abstract: A chuck has a plurality of top jaws for engaging a workpiece. Each top jaw has a recess and a slot that extend completely through the top jaw. The recess and slot allow the forward end of the top jaw to deflect in a rearward direction. This motion allows the jaws to maintain even pressure on the workpiece instead of cocking, thereby minimizing deflection of the workpiece during machining. The slot defines a rearward facing shoulder on the forward end. The maximum deflection of the forward end is limited by the width of the slot. The distance of deflection may be limited by pins located within holes extending through the jaw perpendicular to the slot.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: August 11, 1998
    Inventor: Peter A. Reyes
  • Patent number: 5700019
    Abstract: The chucking ring of this invention finds its principal utility in the clamping of top jaws used in a machine tool, such as a lathe, having a chuck and equipped to machine successive workpieces. The chucking ring includes a flanged head on one end of a tubular body portion that removably receives a plug and an adjustable stop for workpieces. The chucking ring is fastened to the chuck with bolts in its inactive position where it functions as a replacement for a chip bushing. The bolts may be removed and the chucking ring rotated to its active position with the flanges on the head aligned with the master jaws for chucking by the master jaws. The top jaws are bolted to the master jaws for machining.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: December 23, 1997
    Assignee: James J. Anderson
    Inventor: James J. Anderson
  • Patent number: 5155898
    Abstract: Soft jaws in a powered rotary chuck of a lathe are fixedly secured in position, during shaping of the jaws to fit a piece of work, by an annular boring fixture. The fixture is located concentric with the center of rotation of the chuck. The fixture has three sets of multiple spaced threaded openings. Each set is oriented in a like spiral relative to the center of rotation. Three bolts with threaded shanks are engaged in three of the openings. The bolts have heads fitting in counterbores in the jaws. The jaws are tightened on the heads of the bolts so that the jaws can then be shaped to the pertinent dimensions of the piece of work, then the fixture can be removed, then the piece of work can be put in the jaws, and then operations can be performed on the piece of work as it is being rotated by the chuck. Bolts of different diameter heads can be used to help orient the bolts to the locations of the counterbores.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: October 20, 1992
    Inventor: John P. Gutierrez