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Gradient density padding material and method of making same

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • D04H-001/54
  • D04H-001/00
  • E04B-001/84
  • B29C-043/24
출원번호 US-0419765 (2003-04-22)
등록번호 US-8637414 (2014-01-28)
발명자 / 주소
  • Gomez, Durward
  • Borchardt, Steven
출원인 / 주소
  • Lydall, Inc.
대리인 / 주소
    Cantor Colburn LLP
인용정보 피인용 횟수 : 2  인용 특허 : 35

초록

A gradient density padding material includes a single layer of nonwoven material having at least one surface processed to form a portion of a thickness thereof having a density increased with respect to a remaining portion of the thickness thereof. The single layer of nonwoven material after process

대표청구항

1. An acoustically tuned gradient density padding material comprising a nonwoven material including a first portion having a first density and a second portion surface having a second density increased with respect to the first density, wherein the padding material is adapted to provide acoustical a

이 특허에 인용된 특허 (35)

  1. Staelgraeve, Lee A.; Block, Thomas T.; Eigel, Dan, Acoustic doorliner with integral water barrier.
  2. Thorsten Alts DE; Ralf Peter Marsch DE; Marzell Erdkamp DE; Edmund Bonna DE, Acoustic insulating vehicle component.
  3. Thompson Delton R. ; Stroh Joseph A., Acoustical insulating web.
  4. Sulewsky James E. (Mendham NJ), Acoustical wall panel.
  5. Alts, Thorsten; Casulli, Jean; Buisson, Claude, Acoustically effective rear parcel shelf.
  6. Kitson Richard P. (Germantown TN) Gilbert ; Jr. Richard L. (Memphis TN) Israel Joseph (Memphis TN), Composite nonwoven fabric comprising adjacent microfine fibers in layers.
  7. Aneja, Arun Pal, Corrugated fiberfill structures for filling and insulation.
  8. Fay, Ralph Michael, Equipment and duct liner insulation and method.
  9. Nagata Makio,JPX ; Morohoshi Katsumi,JPX ; Nagayama Hiroki,JPX ; Nemoto Kouichi,JPX, Fibrous acoustical material for reducing noise transmission and method for producing the same.
  10. Meeker Brian L., Glass-fiber-containing non-woven polymer web, and process for preparing same.
  11. Adam Gabriel Haman ; Haynes Bryan David ; Lau Jark Chong ; McManus Jeffrey Lawrence, High bulk nonwoven sorbent with fiber density gradient.
  12. Ahrweiler Karl-Heinz (Willich DEX), Inherently rigid laminate material containing plastic trimmings and a method for producing same.
  13. Gish Laura E. ; Huang Liangyu ; Ebbitt Gordon ; Wyerman Barry ; Boyles David, Lightweight acoustical system.
  14. Larry Leroy Vair, Jr. ; Kenneth Andrew Clocksin, Meltblown fibrous acoustic insulation.
  15. Klose Gerd R. (Bundesrep DEX), Method of and apparatus for manufacturing a mineral fiber insulating web.
  16. Thompson Delton R. ; Knoll Randall L., Method of attenuating sound, and acoustical insulation therefor.
  17. Souders Steven L. (Portsmouth NH) Frost Colin (Dover NH), Method of making a fibrous headliner by compression molding.
  18. Vair ; Jr. Larry Leroy ; Clocksin Kenneth Andrew, Method of making a meltblown fibrous insulation.
  19. Flowers ; Thomas A. ; Marra ; Anthony W. ; Vinch ; Samuel D., Method of making a multiple-density fibrous acoustical panel.
  20. English Brent W. (Barneveld WI), Method of making resilient batt.
  21. Haines James Charles ; Fay Ralph Michael, Method of making sound absorbing laminates and laminates having maximized sound absorbing characteristics.
  22. Doerer Richard P. (Grosse Pointe MI) Karpik Joseph T. (Floodwood MN), Moldable fibrous mat and product molded therefrom.
  23. Peoples ; Jr. Clarence A. (Rockwell NC), Molded three dimensional fibrous surfaced article and method of producing same.
  24. Tilton, Jeffrey A.; Block, Thomas T.; Staelgraeve, Lee A.; Eigel, Daniel J., Multidensity liner/insulator.
  25. Boyles, David, Pleated nonwoven products and methods of constructing such products.
  26. Tilton, Jeffrey Allan; Lundrigan, Maurice Paul, Process for forming a multilayer, multidensity composite insulator.
  27. Kittel Christoph (Nienhagen DEX) Walendy Hans (Wathlingen DEX) Burak Gerhard (Adelheidsdorf DEX) Hoffmann Manfred (Nienhof DEX), Process for manufacturing a sound insulating structure.
  28. Juha Sorvari FI; Kaj Lindblad FI, Production method for multilayer filter material and multilayer filter material.
  29. Vanbemmel, William Ray; Vulpitta, Anthony C.; Alts, Thorsten, Sound absorbent thin-layer laminate.
  30. Khambete, Surendra; Skidmore, Fred; Care, Melvyn J.; Griffen, Chris, Sound attenuating composite articles incorporating scrim material and methods of making same.
  31. Allison, Timothy J.; Owenby, Carroll, Sound attenuating material for use within vehicles and methods of making same.
  32. Udo Thorn DE; Gholam Reza Sinambari DE; Wolfgang Riediger DE; Georg Jochim DE, Soundproofing material and the use thereof.
  33. Thornton Donald I. (Warwick RI) Rodman Clarke A. (East Providence RI), Themally formed gradient density filter.
  34. Alts Thorsten,DEX, Ultra-light, multifunctional sound-insulating kit.
  35. Brow Mark J. ; Guthrie Philip L., Vehicle headliner formed of polyester fibers.

이 특허를 인용한 특허 (2)

  1. Wilson, Willsingh, Acoustic absorber, acoustic transducer, and method for producing an acoustic absorber or an acoustic transducer.
  2. Caimi, Renato, Sound-absorbing panel and associated manufacturing method.
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