Automatic injecting device

Claim 1

A DEVICE FOR AUTOMATICALLY INJECTING INTO A RECEPTOR IN FLUID COMMUNICATION THEREWITH A SELECTED MEASURED QUANTITY OF A SELECTED FLUID AT SELECTED INTERVALS OF TIME BY THE AUTOMATIC PERIODIC DEVELOPMENT IN SAID DEVICE OF A PRESSURE GREATER THAN THE PRESSURE IN SAID RECEPTOR, SAID DEVICE COMPRISING: A CYLINDER HAVING A UNIFORM DIAMETER SUBSTANTIALLY THROUGHOUT ITS LENGTH AND HAVING A PARTITION INTERMEDIATE ITS ENDS AND PROVIDING: (1) A RESERVOIR IN WHICH TO STORE SAID SELECTED FLUID, SAID RESERVOIR BEING PROVIDED WITH AN INLET PORT FORMED INDER AND BEING PROVIDED WITH AN INLET PORT FORMED IN SAID PARTITION THROUGH WHICH TO SUPPLY SAID SELECTED FLUID TO SAID DEVICE; (2) A CHAMBER OF SELECTED VOLUME PROVIDED IN A HOLLOW CYLINDRICAL EXTENSION OF SAID PARTITION POSITIONED CONCENTRICALLY IN SAID CYLINDER AND BEING IN FLUID COMMUNICATION WITH RESERVOIR AND IN FLUID COMMUNICATION WITH SAID RECEPTOR; (3) MEANS FOR AUTOMATICALLY REFILLING SAID CHAMBER FROM SAID RESERVOIR EACH TIME SAID CHAMBER IS EMPTIED; (4) CONTROL MEANS; AND (5) PRESSURE INCREASING MEANS PERIODICALLY ACTUATABLE BY SAID CONTROL MEANS TO INCREASE THE PRESSURE ON SAID FLUID IN SAID CHAMBER AND TO EFFECT THE EJECTION OF SAID FLUID FROM SAID CHAMBER SAID PRESSURE INCREASING MEANS INCLUDING A CYLINDRICAL PISTON POSITIONED IN SAID HOLLOW CYLINDRICAL EXTENSION AND ALSO CONENTRIC IN SAID CYLINDER.

Claim 2

A DEVICE FOR AUTOMATICALLY INJECTING INTO A RECEPTOR IN FLUID COMMUNICATION THEREWITH A SELECTED MEASURED QUANTITY OF A SELECTED FLUID AT SELECTED INTERVALS OF TIME BY THE AUTOMATIC PERIODIC DEVELOPMENT IN SAID DEVICE OF A PRESSURE GREATER THAN THE PRESSURE IN SAID RECEPTOR, SAID DEVICE COMPRISING: A CYLINDER HAVING A UNIFORM DIAMETER SUBSTANTIALLY THROUGHOUT ITS LENGTH AND HAVING A PARTITION INTERMEDIATE ITS ENDS AND PROVIDING: (1) A RESERVOIR IN WHICH TO STORE SAID SELECTED FLUID, SAID RESERVOIR BEING PROVIDED WITH AN INLET PORT FORMED INDER AND BEING PROVIDED WITH AN INLET PORT FORMED IN SAID PARTITION THROUGH WHICH TO SUPPLY SAID SELECTED FLUID TO SAID DEVICE; (2) A CHAMBER OF SELECTED VOLUME PROVIDED IN A HOLLOW CYLINDRICAL EXTENSION OF SAID PARTITION POSITIONED CONCENTRICALLY IN SAID CYLINDER AND BEING IN FLUID COMMUNICATION WITH RESERVOIR AND IN FLUID COMMUNICATION WITH SAID RECEPTOR; (3) MEANS FOR AUTOMATICALLY REFILLING SAID CHAMBER FROM SAID RESERVOIR EACH TIME SAID CHAMBER IS EMPTIED; (4) CONTROL MEANS; AND (5) PRESSURE INCREASING MEANS PERIODICALLY ACTUATABLE BY SAID CONTROL MEANS TO INCREASE THE PRESSURE ON SAID FLUID IN SAID CHAMBER AND TO EFFECT THE EJECTION OF SAID FLUID FROM SAID CHAMBER SAID PRESSURE INCREASING MEANS INCLUDING A CYLINDRICAL PISTON POSITIONED IN SAID HOLLOW CYLINDRICAL EXTENSION AND ALSO CONENTRIC IN SAID CYLINDER.