Container depressurization system
OwnerCarl E. Maloneinventor
Life of this patent
Estimating the term…
Abstract
A container sealing system is disclosed herein for use in conjunction with a refillable container having a resealable closure member associated therewith. The sealing system includes a first fluid tight sealing member disposed between and engageable with the closure member and the container and a second sealing member integrally formed on the closure member and engageable with a portion of the container so as to prevent nongaseous contents of the container from leaking into the area of threaded engagement between the closure member and container. A vent passage is also provided in the closure member which is operative to provide safe controlled relief of pressure within the container in response to partial removal and prior to full removal of the closure member.
Claims12
An improved sealing means for a refillable container assembly comprising a container having an opening at one end thereof, a closure member for closing said opening, and cooperating retaining means provided on said container and said closure member for removably retaining said closure member on said container, said improved sealing means comprising:
- first sealing means provided on an outer sidewall of said container between said retaining means and the end of said container opposite said one end and operative to engage said closure member to form a fluid tight seal between said closure member and said container;
- and
- second sealing means disposed between the interior of said container and said retaining means, said second sealing means engaging and creating a sealing relationship between said closure member and said container so as to prevent nongaseous material within said container from reaching said retaining means.
An improved sealing means for a refillable container assembly comprising a container having an opening at one end thereof, a closure member for closing said opening, and cooperating retaining means provided on said container and said closure member for removably retaining said closure member on said container, said improved sealing means comprising:
- first sealing means disposed between said retaining means and the end of said container opposite said one end and operative to form a fluid tight seal between said closure means and said container, said first sealing means including an annular groove formed on one of said closure member and said container and a seal disposed within said groove;
- second sealing means disposed between the interior of said container and said retaining means, said second sealing means engaging and creating a sealing relationship between said closure member and said container so as to prevent nongaseous material within said container from reaching said retaining means, said second sealing means including a depending flange portion integrally formed on said closure member, said flange including a radially outer surface engageable with the peripheral portion of said container defining said opening, said closure member having an axially extending cutout portion, said cutout portion being operative to provide a vent passage across said seal and said depending flange portion being moved out of engagement with said peripheral portion when said closure member is moved to a venting position so as to thereby release pressure from within said container.
Dependencies are inferred from the claim text.