Roller contrivance intended for at least one foot
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 22, 2000
Grant Date -
N/A
app pub date -
Oct 22, 1997
filing date -
Mar 16, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A roller contrivance for use with at least one foot, such as a roller skate (1), skateboard, roller ski or the like, comprising a base frame (2) and at least one row of mutually sequential rollers (3) mounted to the base. At least one of these rollers (3) is journalled in a holder (6) which is pivotally mounted to the base (2). The holder is able to pivot about an axis which forms a right angle with the rotational axis of the roller (3) and is located at a given distance from a roller center line (10) which passes through the roller journal point (8) and its point of contact (21) with the underlying surface.
First Claim
Family
International Classification(s)
- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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