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특허 상세정보

Supporting device with wheels

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62D-033/02   
미국특허분류(USC) 280/043.14; 280/079.11
출원번호 US-0701688 (2010-02-08)
등록번호 US-8292309 (2012-10-23)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Altis Law Group, Inc.
인용정보 피인용 횟수 : 8  인용 특허 : 15
초록

A supporting device includes a tray, a plurality of wheel assemblies, a handle, and a handgrip. The tray is configured for supporting a payload. The wheel assemblies are secured to the tray, and each wheel assembly includes a wheel. Each wheel is capable of rotating about a first axis. The wheel assemblies are rotatable between a first position and a second position, and a distance between each wheel and the tray in the first position is smaller than a distance between each wheel and the tray in the second position. The handle is attached to the tray and...

대표
청구항

1. A supporting device comprising: a tray configured for supporting a payload;a plurality of wheel assemblies secured to the tray, each wheel assembly comprising a wheel, the wheel assemblies being rotatable between a first position and a second position, a distance between each wheel and the tray in the first position being smaller than a distance between each wheel and the tray in the second position;a handle attached to the tray and rotatable to rotate the wheel assemblies from the first position to the second position;a handgrip attached to the tray ...

이 특허에 인용된 특허 (15)

  1. Snider Richard C. (130 N. River Dr. Pennsville NJ 08070). Carriage for a juvenile car seat. USP1995045403022.
  2. Arthur, Joseph I. Chassis with retractable wheels. USP2011087997591.
  3. Jian, Shikun. Flat platform cart with collapsible casters. USP2010087784816.
  4. Flax Nathan (5 Joyce La. Woodbury NY 11797). Foldable hand trolley and associated method of use. USP1994075326116.
  5. Chang, Chin-Lin. Foldable wheel seat. USP2010107819409.
  6. Hall Donald M. (P.O. Box 1247 ; 19 Progress St. Kingston NY 12401-0119). Footed cart having normally disengaged wheels. USP1997055628522.
  7. Cortese,Richard Lewis. Hand truck capable of multi-directional movement. USP2008127464947.
  8. Wu Mei-Kuei Wang,TWX. Locking device for collapsible luggage trolleys. USP1999065911263.
  9. Renz,Susan M.; Stevenson,Catherine M.; Platten,Sabine; Linker, Jr.,Frank V.; Shendge,Devendra Win. Multi-purpose cart assembly. USP2007047201385.
  10. Wang Chien-Shan (No. 80 ; Lin 8 ; Tien Hsin Li Yuan-Li Chen ; Miao Li Hsien CNX). Pull rod structure of a baggage cart. USP1995105458020.
  11. Maupin, Michael Harrison; Maupin, Michael Shawn; Hill, Kenneth Roy. Retractable caster. USP2003016507975.
  12. Chang Fu-Cheng,TWX. Retractable handle mounting structure. USP1999015862898.
  13. O'Shea,Timothy J. C.; Ellard,Terence R; Higgins,Wayne C. Retractable wheel assembly. USP2009037503439.
  14. Clark Gary E. (Sikeston MO). Stroller apparatus for juvenile car seat. USP1989104874182.
  15. Shubert,Arden Royce. Wheel-Dolly for vehicle towing and recovery. USP2007067232138.