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특허 상세정보

Railroad ties made of recycled tire fragments

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B32B-003/00   
미국특허분류(USC) 428/292 ; 428/3171 ; 428/9033 ; 238/1
출원번호 US-0848655 (1992-03-09)
발명자 / 주소
인용정보 피인용 횟수 : 22  인용 특허 : 0
초록

This invention relates to the use of rubber fragments from discarded tires in railroad ties. Such ties are made using rubber fragments which contain steel, polyester, or other strands or fibers, and which therefor are less expensive to prepare than fragments from which the reinforcing strands have been removed. These fragments are mixed with an epoxy mixture comprising an oxirane-containing resin and an amine-containing hardening agent. Test samples made using the materials described herein have excellent hardness, strength, durability, and nail-gripping...

대표
청구항

A molded railroad tie having sufficient strength and durability to render it suitable for prolonged use beneath a railroad track, constructed of rubber fragments mixed with an epoxy adhesive and bonded together, the rubber fragments being produced by fragmenting rubber-containing tires, wherein strands of steel and other reinforcing materials present in the tires have not been removed, and wherein the molded railroad tie is formed under pressure in a mold for a time period sufficient for the epoxy adhesive to set.

이 특허를 인용한 특허 피인용횟수: 22

  1. Shaffer,Charles A.. Apparatus for making tires filled with flatproofing material. USP2006016988524.
  2. Nosker Thomas Jerome ; Renfree Richard William. Composite building materials from recyclable waste. USP1998085789477.
  3. Nosker Thomas Jerome ; Renfree Richard William. Composite building materials from recyclable waste. USP1999065916932.
  4. Siegfried Niedermair CA. Composite railroad cross tie and method of manufacturing same. USP2002016336265.
  5. Shea Marc. Composite railroad crosstie. USP2001016179215.
  6. Hallissy, Gerald; Higbie, William G.; Fyfe, Edward R.. Composite railroad ties with optional integral conduit. USP2003126659362.
  7. Marinelli John. Composite railway crosstie, shaped like an I beam. USP2001066247651.
  8. Roth, Arthur J.; Winters, Patrick H.; Clement, Michael H.. Composite structural material and method of making same. USP2005126972144.
  9. Roth, Arthur J.; Palmer, Gregory M.. Composite structural material and method of making the same. USP2012058181580.
  10. Shaffer, Charles A.. Method for making tires filled with flatproofing material. USP2005076918979.
  11. Radke, Jr., Dan R.. Molding material made from recycled scrap tires. USP2004126833396.
  12. Wayts, Thomas A. Molding system. USP2009067544057.
  13. Dan R. Radke, Jr.. Pallet and process for making thereof. USP2002046374753.
  14. Sullivan Henry W. ; Mack Wolfgang A.,GPX. Polymeric compositions and methods for making construction materials from them. USP1999035886078.
  15. Sullivan, Henry W.; Krouse, Gregory P.; Krygsman, William J.. Railroad tie and method for making same. USP2010057714056.
  16. Leon,Joseph. Structural members fabricated from waste materials and method of making the same. USP2007027172136.
  17. Cialone, Anthony M.; Grubb, Michael. Thermoset composite material and structural component and method of making the same from engineered recycled rubber powder. USP2015119181420.
  18. Cialone, Anthony M.; Grubb, Michael. Thermoset composite material and structural component and method of making the same from engineered recycled rubber powder. USP2017119816235.
  19. Cialone, Anthony M.; Grubb, Michael; Waznys, Peter. Thermoset composite material and structural component and method of making the same from engineered recycled rubber powder. USP2017059644324.
  20. Cialone, Anthony M.; Waznys, Peter; Grubb, Michael. Thermoset composite material and structural component and method of making the same from engineered recycled rubber powder. USP2014038680165.
  21. Nosker Thomas ; Renfree Richard ; Kerstein James. Use of recycled plastics for preparing high performance composite railroad ties. USP2001026191228.
  22. Pignataro ; Jr. Alfred J.. Used tire recycling including sorting tires, shredding sidewalls, stacking tread strips, and uniformly dimensioning and. USP1998115834083.