Patent ID: 6936213

Claim:
A method of manufacturing a hollow product that is formed in a mold cavity defined between a cavity mold part and a core mold part, wherein a first machine component includes a side section of the cavity mold part that forms an outer surface of a sidewall portion of the hollow product and a second machine component includes a base section of the cavity mold part that forms an outer surface of a base portion of the hollow product; the method comprising the steps of: (a) providing said first and second machine components that are combined for manufacture of the product; (b) adjusting the position of the first machine component relative to the position of the second machine component; and (c) commencing manufacture of the product with the first machine component in said adjusted position; wherein step (a) comprises the steps of (d) combining the first machine component with a first eccentric ring having a first edge disposed in slideable contact with said first component; (e) combining the second machine component with a second eccentric ring having a first edge disposed in slideable contact with said second component; and (f) disposing a second edge of the second eccentric ring in slideable contact with a second edge of the first eccentric ring; wherein the contact portions of each said edge are circumscribed by a respective circle; and wherein step (b) comprises the step of: (g) rotating the first eccentric ring to thereby adjust the relative positions of the first and second components; and (h) rotating the second eccentric ring to thereby adjust the relative positions of the first and second components; and wherein step (b) comprises the step of: (i) adjusting an alignment between side and base sections of the cavity mold part.