Patent ID: 6119621
Filing Date: 2000-09-19
Classification: E01F

Abstract:
A modular cone, comprising:a tubular member having an open first end shaped and dimensioned for receipt of a selectively collapsible base member;the selectively collapsible base member being coupled to the tubular member for selective movement between a stored position in which the base member is stored within the tubular member and a use position in which the base member is retrieved from within the tubular member, the base member including at least three stays resiliently biased outwardly to form a pyramid shape, a fabric cover on the three stays for limiting outward movement of the at least three stays;the first end of the tubular member including a retaining member shaped and dimensioned to engage a ring member secured at a top of the base member such that the interaction between the retaining member and the ring member prevents the complete withdrawal of the base member from the tubular member while permitting movement of the base member between its said stored position and its said use position.