Toy "blood sampling" syringe simulator

Claim 1

A TOY "BLOOD SAMPLING" DEVICE FOR SIMULATING THE ACTION OF A BLOOD SAMPLING SUCTION SYRINGE COMPRISING, IN COMBINATION, (A) AN ELONGATED TUBULAR LIGHT-TRANSMITTING SHELL CONSITUTING THE OUTER SIDEWALLS OF A GAS-FILLED CHAMBER FOR RECEIVING A QUANTITY OF COLORED LIQUID SIMULATING BLOOD WHICH MAY BE OBSERVED THERETHROUGH, (B) TRANSVERSE HEAD MEANS CLOSING OFF THE BOTTOM END OF SAID SHELL AND RECEIVING CHAMBER, (C) MEANS SIMULATING A HYPODERMIC NEEDLE CENTRALLY SUPPORTED BY AND PROJECTING FROM SAID TRANSVERSE HEAD MEANS, (D) AN INVERTED HOLLOW CAP CONNECTED TO THE TOP END OF SAID SHELL IN A FLUID-TIGHT MANNER AND HAVING A CLOSED TRANSVERSE TOP END WITH SAID CAP DEFINING THEREWITHIN A SUPPLY CHAMBER, (E) TRANSVERSE CHAMBER FROM THE CAP SUPPLY CHAMBER WITH RECEIVING CHAMBER FROM THE CAP SUPPLY CHAMBER WITH THE LATTER CONTAINING AN APPRECIABLE QUANTITY OF THE BLOOD SIMULATING LIQUID, (F) MEANS DEFINING LOW PASSAGES PAST SAID PARTITION MEANS FOR TRANSFER OF THE LIQUID DOWN FROM THE SHELL RECEIVING CHAMBER INTO THE CAP SUPPLY CHAMBER IN AN INVERTED POSITION OF THE DEVICE WITH THE CAP LOWERMOST AND FOR TRICKLE OF THE LIQUID DOWN FROM THE CAP SUPPLY CHAMBER INTO THE SHELL RECEIVING CHAMBER IN AN UPRIGHT POSITION OF THE DEVICE WITH THE CAP UPPERMOST, AND (G) MEANS MOUNTED ON THE TOP END OF SAID INVERTED CAP SIMULATING THE MANUALLY ENGAGEABLE END OF A SYRINGE PISTON STEM.