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Method for molding a protective helmet

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B29C-067/22
출원번호 US-0785348 (1991-11-01)
발명자 / 주소
  • Sibley Kent V. (Keller TX) Ponzer Donald E. (Imperial MO)
출원인 / 주소
  • Athletic Helmet, Inc. (Knoxville TN 02)
인용정보 피인용 횟수 : 42  인용 특허 : 0

초록

A protective helmet and method and apparatus for making same. The helmet is made of an expanded, resilient polymer and configured with an undercut portion and with holes for ventilation and/or the mounting of a helmet retention system. The holes are generally perpendicular to the surface of the helm

대표청구항

A process for producing a one-piece element for use in a protective helmet, comprising the steps of: introducing compressed, resilient polymeric beads into a pressurized mold having a cavity element, said cavity element having at least one first projection for forming a void extending through the on

이 특허를 인용한 특허 (42)

  1. El-Siblani, Ali, Apparatus and method for forming three-dimensional objects from solidifiable paste.
  2. El-Siblani, Ali, Apparatus and method for forming three-dimensional objects from solidifiable paste.
  3. John,Hendrik, Apparatus for manufacturing a three-dimensional object.
  4. Votel, Thomas; Olson, Andrew; Aris, Dominique P, Cap.
  5. Monaci Roberto,ITX, Composite polymeric material having high resistance to impact energy.
  6. Monaci, Roberto, Composite polymeric material having high resistance to impact energy.
  7. Monaci,Roberto, Composite polymeric material having high resistance to impact energy.
  8. Shkolnik, Alexandr; El-Siblani, Ali; John, Hendrik, Continuous generative process for producing a three-dimensional object.
  9. El-Siblani, Ali; Schillen, Volker; John, Hendrik, Device and method for producing a three-dimensional object by means of mask exposure.
  10. John, Hendrik; Schillen, Volker; El-Siblani, Ali, Device and method for producing a three-dimensional object by means of mask exposure.
  11. John, Hendrik; Schillen, Volker; El-Siblani, Ali, Device and method for producing a three-dimensional object by means of mask exposure.
  12. Sperry, Charles R.; McNamara, Jr., Dennis F.; Scott, Suzanne M.; Hull, Charles W.; Mojdeh, Mehdi, Elevator and method for tilting solid image build platform for reducing air entrainment and for build release.
  13. Pope, Dean F., Fitting and comfort system with inflatable liner for helmet.
  14. Clement, Leonard W., Helmet.
  15. Clement, Leonard W., Helmet.
  16. Jeng Yen-Ming (48 ; Fong Lean Street ; Hsin-Fong ; Hsiang Hsin Chu Hsien TWX), Helmet making process.
  17. Beddoe, Andrew; Seagraves, Joe; Ambuske, Aaron, Helmet vent airflow regulator and shield.
  18. Nohara, Iwao; Nakajima, Tomio; Ida, Kiyotaka; Sameshima, Masahiko; Kobayashi, Yoshiyuki; Yamaguchi, Kenji, Material bead charging method, synthetic resin mold foam forming method using this method, and mold foam formed product obtained by this method.
  19. Cutler Philip W. ; Goulding Blue H. E., Memory molded, high strength polystyrene.
  20. Schillen, Volker; John, Hendrik; Siblani, Ali, Method and device for producing a three-dimensional object, and computer and data carrier useful therefor.
  21. Cutler Phil, Method for making an expanded polystyrene article.
  22. John, Hendrik; Schillen, Volker; El-Siblani, Ali, Method for producing a three-dimensional object by means of mask exposure.
  23. Sarstedt Walter,DEX, Mold for making a part with lugs.
  24. Pierce, Brendan Erik, Molded articles and molding methods particularly for a protective helmet.
  25. Futterer, William F., Molded gel headgear having impact dispersing properties.
  26. El-Siblani, Ali, Process and device for producing a three-dimensional object.
  27. El-Siblani, Ali, Process and device for producing a three-dimensional object.
  28. Schillen, Volker; El-Siblani, Ali, Process and device for producing a three-dimensional object.
  29. El-Siblani, Ali, Process and freeform fabrication system for producing a three-dimensional object.
  30. El-Siblani, Ali, Process and freeform fabrication system for producing a three-dimensional object.
  31. El-Siblani, Ali, Process and freeform fabrication system for producing a three-dimensional object.
  32. El-Siblani, Ali; Shkolnik, Alexandr; John, Hendrik, Process for the production of a three-dimensional object with an improved separation of hardened material layers from a construction plane.
  33. Shkolnik, Alexandr; John, Hendrik; El-Siblani, Ali, Process for the production of a three-dimensional object with an improved separation of hardened material layers from a construction plane.
  34. Shkolnik, Alexandr; John, Hendrik; El-Sibiani, Ali, Process for the production of a three-dimensional object with resolution improvement by pixel-shift.
  35. Shkolnik, Alexandr; John, Hendrik; El-Siblani, Ali, Process for the production of a three-dimensional object with resolution improvement by “pixel shift”.
  36. Shkolnik, Alexandr; John, Hendrik; El-Siblani, Ali, Process for the production of a three-dimensional object with resolution improvement by “pixel-shift”.
  37. Dan T. Moore, III, Protective helmet.
  38. Maddux, Larry E.; Drake, Raymond J.; Barnard, David E.; Lindeman, Williams C.; Nelipovich, Richard; Rodenkirch, Douglas S.; Smith, Garrick D. S., Protective helmet.
  39. El-Siblani, Ali; Shkolnik, Alexandr, Resin solidification substrate and assembly.
  40. El-Siblani, Ali; Shkolnik, Alexandr, Resin solidification substrate and assembly.
  41. Anderson, David, Safety helmet.
  42. Larocque, Joey, Water polo headgear.
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