发明名称 Manually Driven Cart with Biased-Direction Rear Wheels
摘要 A cart having a platform and at least one forward located non-direction biased caster wheel and two rearward located direction biased caster wheels. A second forward located non-direction biased caster wheel may be provided. Various cart types are disclosed including lumber, flatbed, nursery, utility and luggage carts. An embodiment for converting between biased direction and non-biased direction rear wheels is also disclosed.
申请公布号 US2012211956(A1) 申请公布日期 2012.08.23
申请号 US20090558384 申请日期 2009.09.11
申请人 CHEN SHANE 发明人 CHEN SHANE
分类号 B62B3/00 主分类号 B62B3/00
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