Appeal No. 96-0561
Application 08/055,584
APPENDIX
1. A mandrel assembly for enlarging the cross-
sectional area of a passage formed in a work-piece comprised of
elastomeric material; said mandrel assembly comprising a first
generally axially elongated resiliently deflectable mounting
member; a second generally axially elongated resiliently deflect-
able mounting member; wherein said first mounting member
comprises first and second ends; wherein said second mounting
member comprises first and second ends; wherein said first and
second mounting members are juxtaposed to each other as to have
said first ends juxtaposed to each other and as to have said
second ends juxtaposed to each other; wherein said first ends of
said first and second mounting members are spaced a preselected
distance from each other and wherein said second ends are
resiliently deflectable toward and away from each other; wherein
said first mounting member comprises an inner disposed surface;
wherein said second mounting member comprises an inner disposed
surface; wherein said inner disposed surfaces of said first and
second mounting members generally face each other; wherein said
first mounting member comprises an outer disposed surface carried
by said first mounting member as to be disposed thereon generally
oppositely to said inner disposed surface of said first mounting
member; wherein said second mounting member comprises an outer
disposed surface carried by said second mounting member as to be
disposed thereon generally oppositely to said inner disposed
surface of said second mounting member; wherein when said second
ends are resiliently deflected toward each other said work-piece
may be placed onto said first and second mounting members by
having said resiliently deflected second ends inserted into said
passage of said work-piece in a manner whereby at least portions
of said outer disposed surfaces of said first and second mounting
members are juxtaposed to the elastomeric material of said work-
piece defining the surface of said passage; and further
comprising an axially extending expander member; said expander
member being slidable against said inner disposed surfaces of
said first and second mounting members when said first and second
mounting members are held axially stationary; said expander
member when slid axially along said inner disposed surfaces,
while said mounting members are held against axial movement, a
distance sufficient to become between said second ends of said
first and second mounting members being effective to move said
second ends away from each other whereby said at least portions
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Last modified: November 3, 2007