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특허 상세정보

Composite railroad cross-tie

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B32B-005/16   
미국특허분류(USC) 428/331 ; 428/403 ; 428/404 ; 428/407
출원번호 US-0563539 (1990-08-06)
발명자 / 주소
인용정보 피인용 횟수 : 23  인용 특허 : 0
초록

A railroad cross-tie made from sand and recycled thermoplastic containers. To practice the invention the containers made of many thermoplastic materials are granulated and mixed together. The labels and small amounts of residue from the original contents remain on the containers. Sand is dried and coated with an adhesive substance. The coated sand and recycled granulated thermoplastic plastics are mixed and heated in a compression mold to form the railroad cross-tie.

대표
청구항

A member for maintaining a correct spacing between railroad rails and providing a weight bearing support surface, said member being made from a mixture of caramelized sugar coated sand particles and recycled granulated thermoplastics obtained by granulating containers discarded heated and compression molded to form a railroad cross-tie.

이 특허를 인용한 특허 피인용횟수: 23

  1. Roberts, Jr., Richard W.. Bathtub/shower tray support. USP2016039271610.
  2. Roberts, Richard W.. Bathtub/shower tray support. USP20181110130220.
  3. Siegfried Niedermair CA. Composite railroad cross tie and method of manufacturing same. USP2002016336265.
  4. Hallissy, Gerald; Higbie, William G.; Fyfe, Edward R.. Composite railroad ties with optional integral conduit. USP2003126659362.
  5. Richards Denis C. (Mississauga CAX). Composite railway tie and method of manufacture thereof. USP1997035609295.
  6. Jaffe, Jonathan E.. Embedded receiver for fasteners. USP2015079080291.
  7. Roberts, Richard W.. In-situ foam core dielectrically-resistant systems and method of manufacture. USP2014048708177.
  8. Roberts, Richard W.. In-situ foam core structural articles and methods of manufacture of profiles. USP2015089102086.
  9. Roberts, Richard W.. In-situ foam core structural articles and system for forming. USP2017069688046.
  10. Roberts, Jr., Richard W.. In-situ foam core structural energy management system and method of manufacture. USP2014098840819.
  11. Roberts, Richard W.. In-situ foam core vehicle seating system and method of manufacture. USP2015079073462.
  12. Roberts, Jr., Richard W.. Packaging component, method of use, and method of manufacture. USP2013128596027.
  13. Sullivan Henry W. ; Mack Wolfgang A.,GPX. Polymeric compositions and methods for making construction materials from them. USP1999035886078.
  14. Sullivan, Henry W.; Krouse, Gregory P.; Krygsman, William J.. Railroad tie and method for making same. USP2010057714056.
  15. Jaffe, Jonathan; Powers, Scott. Railroad tie of non-homogeneous cross section useful in environments deleterious to timber. USP2013048430334.
  16. Roberts, Jr., Richard W.. Recyclable plastic structural articles and method of manufacture. USP2013018342420.
  17. Roberts, Jr., Richard W.. Recyclable plastic structural articles and method of manufacture. USP2016059346237.
  18. Roberts, Richard W.. Recyclable plastic structural articles and method of manufacture. USP20190210207606.
  19. Leon,Joseph. Structural members fabricated from waste materials and method of making the same. USP2007027172136.
  20. Roberts, Jr., Richard W.. Structural plastic articles, method of use, and methods of manufacture. USP2016039272484.
  21. Bayer,John C.; Gandolfo,Thomas C.. Thermoplastic railroad cross-ties. USP2008027331533.
  22. Bayer John C.. Thermoplastic railroad tie. USP1998095799870.
  23. Nosker Thomas ; Renfree Richard ; Kerstein James. Use of recycled plastics for preparing high performance composite railroad ties. USP2001026191228.