Method of producing a blown bottle having means determinative of relationship between the bottle body and the annular position of associated means mounted on the finish

The method of producing a blown hollow bottle having a body of a certain desired non-round transverse sectional shape and a mouth-defining finish adapted to receive and carry a closure cap of similar non-round transverse shape in a particular annularly oriented position thereon which will substantially align their similar non-round transverse shapes, comprising

• 1. moulding a parison and a circular finish thereon in a parison forming and ring moulding means while forming on the finish a rotary cap stop means, and on the finish and an adjacent mergence section of the parison at a predetermined annular location related in a certain orienting manner to the location of the cap stop means also forming at the same time an exterior and laterally-projecting, localized, physically engageable orientation guidance protrusion whereby it will subsequently serve to be physically engageable with complementary, localized orientation guidance means of additional moulding equipment for dictating the desired relative annular orientation thereof;
• 2. transferring the parison and its finish with the orientation protrusion carried thereby to a blow mould having a non-round moulding cavity that is of a transverse shape to produce the transversely non-round hollow bottle body with the orientation protrusion engaging in a complementary localized orientation recess in the mouth of the moulding cavity;
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• 3. while maintaining the engagement of the orientation protrusion in the orientation recess moulding the parison in this moulding cavity into the desired non-round hollow body, whereby the latter and the closure cap when mounted on the finish in its desired particular annularly oriented position thereon have their similar non-round transverse shapes substantially aligned.