Shiftable Element Is The Tool Patents (Class 234/118)
  • Stamping apparatus having replaceable dies
    Patent number: 6619542
    Abstract: A stamping device includes a base body; an elongated punch having a longitudinal axis; a supporting arrangement for holding the punch in the base body and for guiding the punch for axial displacements between an advanced position and a retracted position; a driving unit releasably held in the base body and including a driving device for axially displacing the punch; a coupling device having a first state in which the coupling device operatively connects the driving device with the punch and a second state in which the driving device is disconnected from the punch; and a receiving arrangement for holding the punch in a desired axial position when the coupling device is in its second state.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: September 16, 2003
    Assignee: Groz-Beckert KG
    Inventor: Siegfried Beerhalter
  • Stamping apparatus having replaceable dies
    Publication number: 20030061927
    Abstract: A stamping device includes a base body; an elongated punch having a longitudinal axis; a supporting arrangement for holding the punch in the base body and for guiding the punch for axial displacements between an advanced position and a retracted position; a driving unit releasably held in the base body and including a driving device for axially displacing the punch; a coupling device having a first state in which the coupling device operatively connects the driving device with the punch and a second state in which the driving device is disconnected from the punch; and a receiving arrangement for holding the punch in a desired axial position when the coupling device is in its second state.
    Type: Application
    Filed: November 4, 2002
    Publication date: April 3, 2003
    Inventor: Siegfried Beerhalter
  • Stamping apparatus having replaceable punches
    Patent number: 6481323
    Abstract: A stamping device includes a base body; an elongated punch having a longitudinal axis; a supporting arrangement for holding the punch in the base body and for guiding the punch for axial displacements between an advanced position and a retracted position; a driving unit releasably held in the base body and including a driving device for axially displacing the punch; a coupling device having a first state in which the coupling device operatively connects the driving device with the punch and a second state in which the driving device is disconnected from the punch; and a receiving arrangement for holding the punch in a desired axial position when the coupling device is in its second state.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: November 19, 2002
    Assignee: Groz-Beckert KG
    Inventor: Siegfried Beerhalter