Land vehicles – Wheeled – Stable vehicles – handle-propelled
Reexamination Certificate
2008-12-10
2010-10-26
To, Toan C (Department: 3616)
Land vehicles
Wheeled
Stable vehicles, handle-propelled
C280S047170, C280S047240, C280S047260, C280S047310, C280S646000, C280S654000
Reexamination Certificate
active
07819409
ABSTRACT:
A foldable wheel seat has a base, an operating bar, a first rotating shaft and two wheel axles. The base has a groove formed in a top face of the base. The operating bar is mounted pivotally in the groove of the base. The first rotating shaft is mounted rotatably in the base and has at least one end and two pulling segments. The at least one end of the first rotating shaft is extended into the groove of the base and is securely connected to the operating bar. The pulling segments are mounted on the first rotating shaft and each pulling segment has two pulling tabs. The wheel axles are mounted rotatably in the base and are perpendicular to the first rotating shaft and below the pulling segments of the first rotating shaft. Each wheel axle has an engaging block, at least two wheels, a holding panel and a torsional spring.
REFERENCES:
patent: 2587688 (1952-03-01), Bosk
patent: 5403022 (1995-04-01), Snider
patent: 6607207 (2003-08-01), Shapiro et al.
patent: 6729647 (2004-05-01), Shapiro et al.
patent: 6733026 (2004-05-01), Robberson et al.
patent: 6845991 (2005-01-01), Ritucci et al.
patent: 7118115 (2006-10-01), Abel
patent: 7201385 (2007-04-01), Renz et al.
patent: 7264265 (2007-09-01), Shapiro
patent: 7334802 (2008-02-01), Kaplan
patent: 7703795 (2010-04-01), Williamson
Bacon & Thomas PLLC
To Toan C
LandOfFree
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