B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
206/23
B65D 53/04 (2006.01) B65D 41/04 (2006.01)
Patent
CA 1288386
SCREW CAP CONSTRUCTION ABSTRACT A screw cap and sealing liner construction includ- ing a cap body having a-transverse top wall with an in- side surface, and having an annular skirt depending from the top wall, the annular skirt having an internal screw thread which extends upward and has a top end located closely adjacent the inside surface. A sealing liner is disposed immediately below and against the inside wall surface, and has a peripheral portion located between this surface and the top end of the screw thread to be engaged and positioned thereby. A nib is provided on the inside of the annular skirt at a location circumferen- tially spaced from the top end of the screw thread. The nib is adjacent the inside surface of the top wall and engages the underside of the sealing liner to retain the liner in position below this surface. The advantage of the present construction over the devices of the prior art is that there is simplified both the molding of the cap and the stripping of the cured part from the mold. Additionally, deformation of the liner is minimized dur- ing initial installation.
536859
Smart & Biggar
Stull Gene
LandOfFree
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