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US 4,071,338 AGranted
Air exhausted mixing bowl
AssigneePhysical Systems, Inc.
InventorsCharles G. Hutter, III, Peter S. Hutter
Life of this patent
Estimating the term…
Abstract
Means for exhausting the fumes arising from material being mixed in a mixing bowl, the fumes being drawn off and passed through a filter that removes the noxious materials and returns the air to the room in which the bowl is located. The device is particularly adapted for use in surgical operating rooms where the utmost precautions must be taken to prevent the inhalation of any fumes by the patient and where sterility must be maintained at all times during the operation.
Claims7
Air exhausting means for a container which includes:
- a housing adapted to surround the upper edge of said container, the upper edge of said housing being above the upper edge of said container;
- a filter holder within said housing and adapted to surround said container, said filter holder having an annular shape and being spaced from said housing to form an annular chamber surrounding the upper edge of said container;
- divider means within said filter holder dividing it into an upper plenum and a lower filter chamber, said filter holder having a first passageway establishing fluid connection between said annular chamber and said plenum, and said divider means having a second passageway therethrough establishing fluid connection between said plenum and said filter chamber;
- outlet means in said filter chamber and passing out said housing adapted to be connected to exhaust means;
- and
- absorption filter means in said filter chamber between said second passageway and said outlet means, whereby air and fumes from said container may be drawn from the space above said container and passed from said annular chamber into said plenum and into said filter chamber, through said filter means for absorption of said fumes and out said outlet means.
3 more elements
Air exhausting means for a container which includes:
- a housing adapted to surround the upper edge of said container, the upper edge of said housing being above the upper edge of said container;
- a filter holder within said housing and adapted to surround said container, said filter holder having an annular shape and being spaced from said housing to form an annular chamber surrounding the upper edge of said container;
- divider means within said filter holder dividing it into an upper plenum and a lower filter chamber adapted to receive a filter means, said filter holder having a first passageway establishing fluid connection between said annular chamber and said plenum, and said divider means having a second passageway therethrough establishing fluid connection between said plenum and said filter chamber;
- and
- outlet means in said filter chamber adapted to be connected to exhaust means, whereby air and fumes from said container may be drawn from the space above said container and passed from said annular chamber into said plenum and into said filter chamber, and out said outlet means.
2 more elements
Dependencies are inferred from the claim text.