Pumping device
OwnerLars-Erik Jansson, Hans-Ake Stoop +1inventors
InventorsLars-Erik Jansson, Hans-Ake Stoop, Sven E. U. Stattin
Life of this patent
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Abstract
A pumping apparatus of the bellows type, which is adapted for artificial respiration of a distressed person having temporarily no ability to breathe by himself, comprises a bag (2), arranged with two mutually movable walls (3,4) delimiting the inner volume thereof, to participate in delimiting the inner volume of the bellows (5). The ends of the folded bellows wall are fastened to one of the two walls each and the pump is arranged to force the air contained in the bellows space aside and to suck air thereinto by movement of the two walls (3,4) towards each other and away from each other, respectively.
Claims6
A pumping apparatus of the bellows type, which is adapted for artificial respiration of a distressed person temporarily unable to breathe on their own, comprising:
- a substantially rigid dual-purpose pumping/carrying case having a bottom and a lid pivotally connected to said bottom so as to define a carrying space between said lid and said bottom;
- a bellows housed substantially within said case having a folded wall enclosing a bellows space and having two ends;
- one of said ends being fastened to said lid and the other of said ends being fastened to said bottom so as to establish a variable volume within said bellows space;
- whereby said bellows space is expanded to draw air thereinto by pivoting said lid and said bottom away from each other in the direction of opening said case and said bellows space is compressed to force air contained therein out by pivoting said lid and said bottom toward each other in the direction of closing the case;
- and
- said carrying space of said case being substantially greater in volume than said bellows space when the latter is fully compressed and said case is closed, such that useful carrying space remains available for carrying items in said case in addition to said bellows.
Dependencies are inferred from the claim text.