Engagement device and coupling member
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United States of America Patent
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-
Aug 1, 2000
Grant Date -
N/A
app pub date -
Dec 23, 1994
filing date -
Jun 24, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to engagemnent devices and coupling members for forming a structural frame work for hollow tubes. One form of engagement device comprises a hollow sleeve (1) through which a tube (31) may be passed. The hollow sleeve has a deformable flared portion (2). A further hollow sleeve member (12) is immovable on the outside of the first sleeve and has a surface (13) arranged to co-operate the flared portion to cause it to deform to grip the tube (31). A further engagement device comprises a hollow sleeve portion (100) which is distendable to grip a tube mounted on its surface. A trustoconical wedge (101) is movable within the hollow sleeve potion (100) to cause to distend. A number of engagement devices may be connected together to form coupling members for connecting tubes to form a structural frame work.
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