Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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B29C
SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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45/00
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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B29C45/17
Component parts, details or accessories; Auxiliary operations
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B29C45/27
Sprue channels; ; Runner channels or runner nozzles
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B29C45/2701
Details not specific to hot or cold runner channels
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B29C45/2703
Means for controlling the runner flow, e.g. runner switches, adjustable runners or gates
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B29C45/2704
Controlling the filling rates or the filling times of two or more mould cavities by controlling the cross section or the length of the runners or the gates
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