Patent ID: 6951298
Filing Date: 2005-10-04
Classification: B21J,B23P

Abstract:
1. A fastener delivery apparatus for connection to a setting tool of a fastener machine comprising: a fastener delivery tube and a fastener supply; the delivery tube being connected to the fastener supply and being connectable to the setting tool; the delivery tube having a bore that defines an internal cross-section profile configured to conform substantially to the size and shape of the fastener to be used; a source of pressurized gas having an outlet that is connected to and coaxial with the delivery tube and configured to supply pressurized gas through the bore of said tube so as to propel fasteners along said tube towards the setting tool; said outlet having a bore with an interior cross sectional area that is substantially identical to said internal cross-section profile of the delivery tube bore; a movable transfer passage disposed between the outlet of the source of pressurized gas and an inlet of the delivery tube for transferring a fastener between the fastener supply and the delivery tube, the passage being in line with the outlet of the gas source and said inlet of the delivery tube; sealing means contacting the transfer passage for sealing the passage so as to prevent leakage of gas from the apparatus.