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특허 상세정보

Special big 4 wheeler wheel barrow

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62B-003/00   
미국특허분류(USC) 280/047.34; 280/047.31
출원번호 UP-0507825 (2006-08-22)
등록번호 US-7845654 (2011-01-31)
발명자 / 주소
대리인 / 주소
    Ritchison Law Offices
인용정보 피인용 횟수 : 4  인용 특허 : 16

An auxiliary wheel assembly mounted on a selected portion of a wheelbarrow comprising: several structural members namely a urethane receptacle barrow, a dual front support and wheel assembly, a rear support and wheel assembly with a plurality of heavy duty wheels, and a means to connect these front and rear assembles and barrow. These members are potentially made of various materials and are designed for Original Equipment offerings or After Market additions to currently produced wheel barrows. The device may have alternative embodiments with various mat...


What is claimed as new and desired to be protected by Letters Patent is: 1. A 4-wheeled manually operated wheelbarrow device comprising: a receptacle barrow; a front wheel assembly, comprising: a first front wheel, a second front wheel and a front axle; first and second rear supports; a rear wheel assembly, comprising: a first rear wheel and a second rear wheel; two handles running rearwardly of said barrow; first and second front supports, and said first and second rear supports connected to said handles; said first and second front supports rotatably ...

이 특허에 인용된 특허 (16)

  1. Ducharme,Robert O.. Adaptable transport. USP2006037017998.
  2. Stahl Roy Layton (6838 Forest Crest North San Antonio TX 78240). Auxiliary wheel assembly. USP1977124061349.
  3. Wilburn Helen M.. Auxiliary wheel assembly. USP2001066241276.
  4. Ortez, G. Steven. Auxiliary wheeled frame for wheelbarrows. USP2003016508478.
  5. 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.
  6. Loveless Brad L. (P.O. Box 998 Hughson CA 95326). Dual wheeled wheelbarrow. USP199209D329726.
  7. Keller Louis D. (P.O. Box 5336 North Muskegon MI 49445). Kit and method for converting a wheelbarrow into a garden cart. USP1996045509681.
  8. Evans Anthony C. (55400 W. Eight Mile Rd. Northville MI 48167). Method of converting a wheel barrow from a single to a dual wheel. USP1991075033760.
  9. Lim, Fong Kan. Three wheeled wheelbarrow with handle adaptor. USP2005046880852.
  10. Gingras Eric (Winchester VA) Tomblin Glen E. (Winchester VA). Tilt truck. USP199503D356411.
  11. Havlovitz Paul M. (Escondido CA). Utility cart. USP1997125692761.
  12. Steer Clive A. (West View ; Shere Rd. West Horsley ; Leatherhead ; Surrey GB3). Wheel barrow. USP1990054921305.
  13. Mawhinney James G. (421 Cummer Ave Willowdale North York ; Ontario CAX M2M 2G3) Anderson Smity A. (65A Emmett Avenue #1502 Toronto ; Ontario CAX M6M 2E5). Wheelbarrow. USP1994095350030.
  14. Terhune John J. (Cochise County AZ). Wheelbarrow construction. USP1988084767128.
  15. Wannamaker David D. (Rte. 2 ; Box 257 D St. Matthews SC 29135). Wheelbarrow conversion kit. USP1991075031926.
  16. Garcia Guadalupe. Wheelbarrow rear wheel system. USP2001046220622.