Toy to simulate heartbeats and a stethoscope

Details Toy to simulate heartbeats and a stethoscope Toy to simulate heartbeats and a stethoscope

1980-04-25

1981-08-11

Mancene, Gene

46 44, A63H 500, A63H 2916

Patent

active

042826780

ABSTRACT:
A toy stethoscope including a flexible yoke with earpieces on the outer ends of the arms thereof, flexible tubes respectively extending along the arms from the earpieces to one end of a cylinder having a reciprocable plunger therein to produce sounds simulating natural heartbeats, another tube connected at one end to the other end of the cylinder and the other end of the tube being connected to a bellows element adapted to be manually operated to compress and release one end of the same to successively produce air pressure and suction operable upon the plunger to effect the sounds simulating natural heartbeats.

REFERENCES:
patent: 369404 (1887-09-01), Heston et al.
patent: 2571124 (1951-10-01), Farrand
patent: 2715296 (1955-08-01), Pettit
patent: 3024568 (1962-03-01), Barnett
patent: 3093925 (1963-06-01), Greene
patent: 3172232 (1965-03-01), Bischoff
patent: 3470745 (1969-10-01), Frank
patent: 3621845 (1971-11-01), Oates
patent: 4155196 (1979-05-01), Bollinger et al.
patent: 4174588 (1979-11-01), Clanton
patent: 4177871 (1979-12-01), Clanton

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