Land vehicles – Skates
Reexamination Certificate
2008-05-20
2008-05-20
Ellis, Christopher (Department: 3618)
Land vehicles
Skates
C280S011115, C280S011201, C280S011180, C280S011221, C280S011225, C280S011270, C280S011280, C280S011120, C280S011140
Reexamination Certificate
active
11391803
ABSTRACT:
An ice skate comprises a horizontal platform and a pair of opposing side brackets perpendicularly secured to an underside of the platform. A pair of opposing extension arms is pivotally engaged with each end portion of the side brackets, and an extender bracket is engaged with a center portion of the side brackets. Each extension arm has a torsion spring confined and arranged to enable the extension arm to pivot about the center axle within a certain range in tandem with the other of the pair of extension arms. A distal end of each extension arm has an axle non-rotatably engaged with a follower rotatably engaged in a vertical plane. Each follower is engaged with a horizontally elongated hole at front and rear end portions of the skating blade, and the extender bracket provides an additional follower engaged with a vertically elongated hole on a centerline of the skating blade.
REFERENCES:
patent: 5931480 (1999-08-01), Schroeder
patent: 6454279 (2002-09-01), Yang
patent: 6631911 (2003-10-01), Chen et al.
patent: 2002/0070513 (2002-06-01), Chang
patent: 2003/0001347 (2003-01-01), Chen et al.
patent: 2003/0030237 (2003-02-01), Lo et al.
Ellis Christopher
Gene Scott & Patent Law & Venture Group
Olszewski John R
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