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특허 상세정보

Independently rotatable, split tread, single wheel assembly

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B60B-033/00   
미국특허분류(USC) 016/048; 016/045; 016/031.R; 016/040
출원번호 US-0335463 (2002-12-31)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 8  인용 특허 : 15
초록

An independently rotating, split tread wheel assembly includes a pair of disks each having an outer tread formed of rubber or polyurethane compounds and supported on the periphery thereof. Each disk includes a central opening that receives a ball bearing assembly. A pair of hub inserts have central annular surfaces in adjacent relationship. A cylindrical spacer extends about the central annular surfaces and supports the inner races of the bearing assemblies so that the two disks turn independently about the hub inserts on their respective bearing assembl...

대표
청구항

1. A split tread wheel assembly, including:a pair of tread assemblies disposed in closely spaced, axially aligned relationship, and means for supporting said pair of tread assemblies on a common structural element in independently rotatable fashion;each of said tread assemblies including a central aperture, and a pair of sealed ball bearing assemblies, each secured within said central aperture of one of said tread assemblies;further including a generally cylindrical spacer having a pair of annular lands at opposed ends thereof, each of said annular lands...

이 특허에 인용된 특허 (15)

  1. Donze Pierre (“Clos Varegues”St. Andrieux 76930 Octeville/Mer FRX) Frank Jean P. (3 rue des Songes 68850 Staffelfelden FRX). Balanced multi-wheel wheelbarrow. USP1992095149116.
  2. Eichhorn Anthony E. (East Amherst NY). Caster assembly with automatic swivel lock/unlock. USP1996055517718.
  3. Timmer Hendrikus Jacobus Maria (Tiel NL). Castor wheel. USP1977104054335.
  4. Chapman Howard H. (Bloomfield Hills MI) Chapman Robert F. (Troy MI). Demountable urethane caster wheel tire. USP1988114783880.
  5. Siesholtz Devon T. (Boyertown PA) Saint Nathaniel (Morgantown PA). Double wheel caster for being rotatably mounted on a leg of a transport carrier. USP1992095144717.
  6. White Craig A. (Shaker Heights OH). Flutter free dual wheel caster assembly. USP1995045406675.
  7. Deckler Harry C. (Williamsburg IA). Load equalizing, dual wheels for grain cart. USP1992085139314.
  8. Kiffe Horst-Gregor (Vogelbeerweg 19 7730 Villingen-Schwenningen DEX). Motorized golf caddie. USP1992115161635.
  9. Eggleston David O. (Mishawaka IN). Multi-wheel bed roller. USP1982054327462.
  10. Miranda Eduardo E.. Removable stepwise adjustable dolly support adjustable to fit various dollies. USP1998095810373.
  11. Gagnon Paul R. (Acton MA) Cerqua David F. (Maynard MA). Shock and vibration isolating caster. USP1994045305496.
  12. Black ; John W.. Solid axle wheel support and sealed bearing construction. USP1978104122580.
  13. James Michael J. (Cheltenham GB2). Twin-wheel castor. USP1979114173810.
  14. Screen Stafford T. (Stourbridge GB2). Twin-wheel castor. USP1987114706329.
  15. Purnell Peter F. (7 Deer La. Ledyard CT 06339). Wheel assembly for baby stroller. USP1996125581843.