Stethoscope
First Claim
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1. IN A STETHOSCOPE CONSTRUCTION HAVING A PAIR OF RIGID ELONGATED EAR TUBES AND A FLEXIBLE Y-TUBE WITH INTEGRAL ARMS AND A STEM, A PAIR OF ELONGATED LEAF SPRINGS POSITIONED WITHIN SAID Y-TUBE ARMS AND PRETRESSED TO FORM U-SHAPED ARC, AND MEANS INTERENGAGING EACH OF SAID LEAF SPRINGS AT THEIR ENDS TO SAID EAR TUBES WITH ONE SPRING LONGITUDINALLY SLIDABLE WITH RESPECT TO THE OTHER, SAID MEANS INTERENGAGING SAID LEAF SPRINGS AT EACH END TO SAID EAR TUBES INCLUDING MEANS ENCLOSING PORTIONS OF SAID LEAF SPRING ENDS AND SAID ENDS OF SAID TUBES, SAID MEANS IN-
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1 Claim
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1. IN A STETHOSCOPE CONSTRUCTION HAVING A PAIR OF RIGID ELONGATED EAR TUBES AND A FLEXIBLE Y-TUBE WITH INTEGRAL ARMS AND A STEM, A PAIR OF ELONGATED LEAF SPRINGS POSITIONED WITHIN SAID Y-TUBE ARMS AND PRETRESSED TO FORM U-SHAPED ARC, AND MEANS INTERENGAGING EACH OF SAID LEAF SPRINGS AT THEIR ENDS TO SAID EAR TUBES WITH ONE SPRING LONGITUDINALLY SLIDABLE WITH RESPECT TO THE OTHER, SAID MEANS INTERENGAGING SAID LEAF SPRINGS AT EACH END TO SAID EAR TUBES INCLUDING MEANS ENCLOSING PORTIONS OF SAID LEAF SPRING ENDS AND SAID ENDS OF SAID TUBES, SAID MEANS IN-
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Current AssigneeDavid Littmann, John M. Goodnow
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Original AssigneeDavid Littmann, John M. Goodnow
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InventorsLittmann, David, Goodnow, John M.
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Application NumberUS04/205,158Time in Patent Office966 DaysField of SearchUS Class Current181/135CPC Class CodesA61B 7/02 Stethoscopes acoustic detai...
