Bottles and jars – Sidewall structure – Pressure-responsive structure
Reexamination Certificate
2006-04-28
2011-11-01
Weaver, Sue A (Department: 3781)
Bottles and jars
Sidewall structure
Pressure-responsive structure
C215S382000, C215S900000, C220S666000, C220S671000
Reexamination Certificate
active
08047389
ABSTRACT:
A semi-rigid collapsible container (10) has a side-wall with an upper portion (5), a central portion (6), a lower portion (7) and a base (8). The central portion (6) includes a vacuum panel portion having a control portion (2) and an initiator portion1. The control portion (2) is inclined more steeply in a vertical direction, i.e. has a more acute angle relative to the longitudinal axis of the container (10), than the initiator portion1. On low vacuum force being present within the container panel following the cooling of a hot liquid in the container10the initiator portion (1) will flex inwardly to cause the control portion (2) to invert and flex further inwardly into the container (10) and the central portion (6) to collapse. In the collapsed state upper and lower portions of the central portion (6) may be in substantial contact so as to contain the top-loading capacity of the container (10). Raised ribs (3) made an additional support for the container in its collapsed state. In another embodiment the telescoping of the container back to its original position occurs when the vacuum force is released following removal of the container cap.
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CO2 Pac Limited
Henricks Slavin & Holmes LLP
Weaver Sue A
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