Abstract: A container cap for providing a seal with an annular wall of a receptacle is disclosed. The cap includes a top wall, an annular seal wall, and cam structure. The annular seal wall extends axially from the cover portion. The annular seal wall is spaced radially inward of the cam structure. An end portion of the annular seal wall is configured to form a seal with the annular wall of the receptacle when the end portion is forced into engagement with annular wall of the receptacle.

Abstract: A container cap for providing a seal with an annular wall of a receptacle is disclosed. The cap includes a top wall, an annular seal wall, and cam structure. The annular seal wall extends axially from the cover portion. The annular seal wall is spaced radially inward of the cam structure. An end portion of the annular seal wall is configured to form a seal with the annular wall of the receptacle when the end portion is forced into engagement with annular wall of the receptacle.

Abstract: Systems and methods for providing a breathing gas are provided. In one embodiment, the method includes sensing a sensed parameter associated with delivery of the breathing gas, changing a control parameter associated with a flow/pressure control element in response to a difference between the sensed parameter and a first predetermined sensed parameter value during a first portion of a breathing cycle, determining a transition from the first portion to a second portion of the breathing cycle based at least in part on the changing control parameter, changing the control parameter to cause a first change in the sensed parameter during the second portion of the breathing cycle based at least in part on the determined transition, and changing the control parameter to cause a second change in the sensed parameter during a third portion of the breathing cycle based at least in part on the first predetermined sensed parameter value.