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특허 상세정보

Lightweight, composite structural railroad ties

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B32B-003/00   
미국특허분류(USC) 428/071; 428/068; 428/076; 428/131; 428/543; 428/319.1; 428/319.3; 428/319.7; 052/309.4; 052/309.8; 052/309.9
출원번호 UP-0504394 (2006-08-15)
등록번호 US-7592059 (2009-10-20)
발명자 / 주소
대리인 / 주소
    Fliesler Meyer LLP
인용정보 피인용 횟수 : 4  인용 특허 : 13

A lightweight, reinforced composite structural element is disclosed, which includes a hollow housing, interior reinforcement, a filling of polyurethane foam, and a substantially uniform outer coating of a high-solid protective coating. The reinforced composite structural element can be used as a railroad tie and for other construction uses. The structural element is formed with a housing having end caps or ends sealed by flaps that are connected with and bendable from the housing material to create a sealed container with openings for injection of the fo...


What is claimed: 1. A composite structural element comprising: a hollow flame made from a rigid material, said hollow flame having an interior, and an exterior, wherein the hollow flame is an elongated rectangular box, and wherein the hollow flame further comprises: a single U-shaped section comprising: an open side; a closed bottom surface; a first arm; and a second arm substantially parallel to the first arm, the first arm and second arm connected with and perpendicular to the closed bottom surface; a top section positioned over the open side substan...

이 특허에 인용된 특허 (13)

  1. Barsky Samuel M. (28 Charles St. Wakefield MA 01880). Combination box and package cushioning and method. USP1989084856655.
  2. Cecka Andrew M. (Thousand Oaks CA) Pawling Paul G. (Oxnard CA). Composite high strength to weight structure having shell and weight controlled core. USP1980074212461.
  3. Holmes Robert D. ; Holmes Valerie L. ; McManus Frank J.. Composite material for construction and method of making same. USP2001056235367.
  4. Collins ; Walter ; Blankumsee ; Howard. Composite railroad cross tie with rail support blocks. USP1978094113177.
  5. Shea Marc. Composite railroad crosstie. USP2001016179215.
  6. Scott Christopher R. (1039 Silverade La Tolla CA 92037). Construction systems and elements thereof. USP1991065022211.
  7. Brotz Gregory R. (P.O. Box 1322 Sheboygan WI 53081). Metallized fiber/member structures and methods of producing same. USP1992075128174.
  8. Heggenstaller Anton (Unterbernbach DEX) Spies Xaver (Unterbernbach DEX). Process for pressing a flexurally rigid, beam-shaped molding. USP1992035100601.
  9. Fox James C. ; Fox ; II James C.. Railroad cross tie and track continuity detector systems. USP1998025713518.
  10. Erwin Ronald Dean. Reinforced composite deck post. USP1999015862642.
  11. Sato Yoshihiko (Chiba JPX) Ohishi Fujio (Akishima JPX) Hongu Tatsuya (Tokyo JPX) Suzuki Toshio (Tokyo JPX) Ogawa Yoshihiko (Tokyo JPX). Resilient coat for tie of direct-connection type track. USP1987034652495.
  12. Hill ; Albert A.. Synthetic railroad crosstie. USP1978044083491.
  13. Prince, Richard T.. Variable load capacity and aesthetically enhanced construction components for patio enclosures. USP2003126668495.