Land vehicles – Wheeled – Extensible
Reexamination Certificate
2007-04-03
2007-04-03
Restifo, Jeff (Department: 3618)
Land vehicles
Wheeled
Extensible
C280S649000, C403S388000
Reexamination Certificate
active
10819539
ABSTRACT:
A mobility aid, such as a wheelchair or walker, includes first and second structural members and a fastener for connecting the members together. A washer has first and second portions connected by a bridge portion, each with a fastener opening for receiving the fastener. The washer is self-supporting on a structural member to take the place of two individual washers. A method of connecting first and second connecting members to a frame member of a personal mobility aid includes placing a washer on the frame member so that the washer has first and second portions spaced apart on opposite sides of the frame member; placing the first and second connecting members adjacent the first and second portions of the washer; and fastening the connecting members and the frame member and the washer together with a fastener.
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Cerreto Matthew Robert
Molnar James H.
Roth Edward B.
Calfee Halter & Griswold LLP
Invacare Corporation
Restifo Jeff
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