Merchant & Gould P.C.
Gas injection mold structure for a gas auxiliary injection molding equipment
 Disclosed is a gas injection mold structure for use in the field of gas auxiliary injection molding, comprising a male mold and a gas injection device. The gas injection device includes a head and a cylindrical body extending from the head. The male mold is formed with a cylindrical cell. The cylindrical body has an outer periphery and the cylindrical cell has an inner wall being formed with matching outer and internal threads, respectively, such that the gas injection device is removably threaded into and affixed to the cylindrical cell by means of the cylindrical body. The cylindrical body is formed with a plurality of vertical grooves along an entire length of sides thereof. The head has a lower surface being formed with lateral grooves corresponding to the vertical grooves, such that when the gas injection device is threaded into the male mold, each vertical groove and its corresponding lateral groove jointly form a continuous passage originating from bottom of the cylindrical cell to the periphery of the head, thereby pressurized gas is injected into a cavity through the passage. 
Industrial Technology Research Institute
B Y
B29C Y10S
inventional additional
Shian-Yih Yung-Chih Chin-Yung Wen-Liang Cheng-Lung
Wang Chen Wu Liu Cheng