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특허 상세정보

Tow-bar for wheelbarrows

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62B-001/20    B62B-001/00   
미국특허분류(USC) 280/415.1; 280/047.31
출원번호 UP-0810676 (2007-06-07)
등록번호 US-7540521 (2009-07-01)
발명자 / 주소
대리인 / 주소
    Spiegel, Joseph L.
인용정보 피인용 횟수 : 0  인용 특허 : 13
초록

A tow bar assembly for converting a two-wheeled wheelbarrow into a garden or industrial type trailer includes a bar of metal box tubing with horizontal holes at the wheelbarrow end and vertical holes at the tractor end. The wheelbarrow end is slid onto the axle of the wheelbarrow, keeping the bar between the tub of the wheelbarrow and its toe plate. Grommets positioned on the axle on either side of the bar center the tow bar assembly on the axle. A threaded post is inserted into the holes in the tractor end of the bar and locked into place by nuts. In us...

대표
청구항

What is claimed is: 1. For attachment of a two-wheeled wheelbarrow to the rear of a towing vehicle with a vertically apertured draw bar, and thereby converting the two-wheeled wheelbarrow into a garden or industrial trailer, a combination comprising: a wheelbarrow having a body with workman's end, dumping end and side walls, a frame including a pair of lower rails with lifting/transporting handles forward of the workman's end, extending and converging from forward of the workmen's end, beneath the body to the dumping end, a toe plate joining the rails a...

이 특허에 인용된 특허 (13)

  1. Johnson James A. (9225 - 166th St. Cologne MN 55322). Convertible wheelbarrow/cart. USP1988044740008.
  2. Fedorko Eric J. (5 Portage PA 15946) Fedorko Edward A. (P.O. Box 85 Portage PA 15946). Garden cart hitch. USP1995105458356.
  3. Keller Louis D. (P.O. Box 5336 North Muskegon MI 49445). Kit and method for converting a wheelbarrow into a garden cart. USP1996045509681.
  4. Porter Lynn L. (R.F.D. 1 ; Box 1802 Bangor ME 04401). Multipurpose barrow vehicle. USP1988124789171.
  5. Yamaji Tadao (Ashiya JPX) Nakajima Toshi (Kobe JPX) Kashi Takeshi (Amagasaki JPX). Pipe joint for preventing separation. USP1983114417754.
  6. Abel,Gary V.. Trailer adapter hitch for a barrow. USP2006117140630.
  7. Mandell Jonathan N. (Winchester VA) Tomblin Glen E. (Winchester VA). Utility cart and latch assembly therefor. USP1995035395163.
  8. Wannamaker David D. (Rte. 2 ; Box 257 D St. Matthews SC 29135). Wheelbarrow conversion kit. USP1991075031926.
  9. Lehman Maurice E. (1960 Horseshoes Rd. Lancaster PA 17601) Gehman Roland P. (Stevens PA). Wheelbarrow transport device. USP1981084281950.
  10. Lehman Maurice E. (1960 Horseshoe Road Lancaster PA 17601). Wheelbarrow transport means. USP1977104052079.
  11. Lehman Maurice E. (1960 Horseshoe Rd. Lancaster PA 17601) Gehman Roland P. (Stevens PA) Mohler Kenneth E. (Mohnton PA) Straub Donald H. (Mt. Joy PA). Wheelbarrow transport vehicle. USP1979054155678.
  12. Mosley Keith A.. Wheelbarrow with integrated trailering and dumping capabilities. USP1999065915706.
  13. Wallace Astor J. (1301 W. Robinson St. Harrisburg IL 62946). Wheelbarrow-trailer implement. USP1992025087061.