Hand truck
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 21, 1987
Grant Date -
N/A
app pub date -
Dec 11, 1985
filing date -
Dec 14, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hand truck has a load supporting frame having a handle, and a load supporting platform provided on a lower portion of the load supporting frame. A pair of main wheels are provided on a lower portion of the load supporting frame, and an auxiliary frame is pivotally mounted on a lower portion of the load supporting frame. A pair of auxiliary wheels are provided on ends of the auxiliary frame. An extensible cylinder device is provided between the load supporting frame and the auxiliary frame so as to change the angle there-between.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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