Hose direct canister lid
AssigneeTilia International, Inc.
InventorsLuther T. Nieh, Michael H. Tsao, Djabbar Moustafaev, Landen M. Higer
Life of this patent
Estimating the term…
Abstract
A hose direct cannister lid includes a port that accepts a hose connected to a source of vacuum in order to evacuate a cannister to which the lid is connected. The hose direct cannister lid includes a first valve for exposing the cannister to the source of vacuum when the vacuum hose is secured to the lid, and wherein the first valve closes when the source of vacuum is removed in order to seal the lid and cannister from ambient. The hose direct cannister includes a second valve used to break the vacuum and expose the interior of the cannister to ambient.
Claims29
A cannister lid adapted for covering a cannister which can be evacuated, the cannister lid comprising:
- a first port adapted to be connected to a source of vacuum;
- a valve which is adapted to selectively communicate the first vacuum port to the interior space of the cannister;
- a second port which is adapted to cause the interior space of the cannister to be connected to ambient.
A cannister lid adapted for covering a cannister which can be evacuated, the cannister lid comprising:
- an upper surface;
- a chamber including a chamber wall and said chamber defined below said upper surface;
- a first port provided through said upper surface and adapted to be connected to a source of vacuum;
- a second port provided through said chamber wall and adapted to communicate said chamber with the interior of a cannister;
- a first valve which can selectively open and close said second port and which first valve is adapted to selectively communicate the first vacuum port to the interior space of the cannister;
- a third port provided through said chamber wall and adapted to communicate said chamber with the interior of a cannister;
- and
- a second valve that can selectively open and close said third port which second valve extends though said upper surface so that the second valve can be manually operated from said upper surface.
A cannister lid adapted for selectively sealing to a cannister, the cannister lid comprising:
- a top with a peripheral edge;
- a gasket located at said peripheral edge;
- said gasket including a cannister engaging portion which includes three points of contact between said gasket and the cannister.
A cannister lid adapted for selectively sealing to a cannister, the cannister lid comprising:
- a top with a peripheral edge;
- a gasket located at said peripheral edge;
- said gasket including a cannister engaging portion which includes a first surface that is adapted to be about perpendicular to a side wall of the cannister, a second surface that is adapted to be about at an angle to the side wall of the cannister, and a third wall that is adapted to be about parallel to the side wall.
A cannister lid adapted for selectively sealing to a cannister, the cannister lid comprising:
- a top with a peripheral edge;
- a gasket located at said peripheral edge;
- said gasket including a cannister engaging portion which includes a first surface, a second surface that is at an obtuse angle to said first surface, and a third surface that is about perpendicular to said first surface.
Dependencies are inferred from the claim text.