Patent ID: 7753763
Filing Date: 2010-07-13
Classification: A22C,B65D,Y10T

Abstract:
1. A method of making a tubular net comprising: placing a tubular net on an outside of a transfer tube having a transfer tube diameter and an end; inserting a support tube coaxially inside the transfer tube, the support tube having a support tube diameter that is smaller than the transfer tube diameter; moving the tubular net off the transfer tube and past the end of the transfer tube to fold the tubular net onto the support tube in the form of a multiplicity of successive concentric layers on the support tube; and moving the transfer tube relative to the support tube to expose the support tube as the layers are formed on the support tube; the successive folded concentric layers each having an inner diameter and an outer diameter, the inner diameter of each layer being adjacent the support tube and being equal to the support tube diameter, and the outer diameter of each layer being spaced away from the support tube and being greater than the support tube diameter and at most equal to the transfer tube diameter.