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公开(公告)号：US20240173908A1
公开(公告)日：2024-05-30
申请号：US18283655
申请日：2022-03-09
发明人： Thomas Q. Chastek , Mark E. Napierala , Mark F. Schulz , Ross E. Behling , Ilya A. Salnikov , Richard P. Lovelien
IPC分类号： B29C48/52 , B29C48/535 , B29C64/118 , B29C64/209 , B33Y30/00
CPC分类号： B29C48/52 , B29C48/535 , B29C64/118 , B29C64/209 , B33Y30/00
摘要： Provided is an apparatus for dispensing a composition that includes a barrel having an inlet and outlet, an extrusion screw, and a drive mechanism operatively coupled to the extrusion screw. The extrusion screw includes a shaft having a shank end for connection to the drive mechanism and a distal end opposite the shank end. A first helical flight extends around a first section of the shaft, and a second helical flight extends around a second section of the shaft. The second section is located distal to the first section and the first helical flight has a nominal outer radius less than that of the second helical flight, and optionally the first helical flight has a pitch shorter than that of the first helical flight.
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公开(公告)号：US20220134652A1
公开(公告)日：2022-05-05
申请号：US17432006
申请日：2020-02-25
IPC分类号： B29C64/209 , B29C64/314 , B29C64/321 , B29C64/295 , B29C64/118 , B33Y30/00 , B33Y40/10 , B33Y70/00
摘要： Provided are systems for dispensing a filament adhesive. The dispensing systems include a dispensing head with a barrel including one or more heating elements, and a rotatable screw received in the barrel, the rotatable screw including at least one mixing element. An inlet extends through a side of the barrel for receiving the filament adhesive. An outlet at a distal end of the barrel for dispensing the filament adhesive in molten form. The dispensing system further includes a filament adhesive having a configuration to be received into the inlet of the dispensing head. Using the provided dispensing systems, and optionally with the assistance of a computer, adhesives can be precisely applied to pre-determined locations on a substrate.
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