Pump

Claim 1

A PUMP COMPRISING A HOUSING HAVE A SOMEWHAT CYLINDRICAL INTERIOR CHAMBER; A SHAFT JOURNALLED IN BOTH ENDS OF SAID HOUSING IN AXIAL ALIGNMENT THEREWITH AND EXTENDING THROUGH SAID INTERIOR CHAMBER; A CYLINDRICAL ROTOR CARRIED CONCENTRICALLY ON SAID SHAFT AND ADAPTED TO BEE DRIIVEN THEREBY, SAID ROTOR HAVIING FLONGITUDINALLY EXTENDING TEETH UNIFORMLY SPACED ABOUT ITS ENTIRE CIRCUMFERENCE; THE LENGTH OF SAID INTERIOR CHAMBE BEING ONLY SLIGHTLY GREATER THAAN THE LENGTH OF SAID ROTOR, THE CIRCUMFERENTIAL WALL OF SAID CHAMBER HAVING ONE CIRCUMFERENTIAL PORTION WHICH IS CONCENTRIC TO SAID SHAFT AND SPACCED BY A FIRST RADIUS DISTANCE FROM THE AXIS OF SAID ROTOR, A SECOND AND OPPOSIITELY DISPOSED CIRCUMFERENTIAL PORRTION WHICH IS ALSO CONCENTRIC TO SAID SHAFT BBUT AT A SECOND AND LARGER RADIUS DISTANCE FROM THE AXIS OF SAID ROTOR, AND FIRST AND SECONND TAPERED-RADIUS PORTIONS WHICH ARE OPPOSITELY DISPOSED TO EACH OTHER AND WHICH INTERCONNECT SAID FIXED-RADIUS PORTIONS; AT LEAST TWO FLEXIBLE MEMBERS DISPOSED IN CIRCUMFERENTIALLY SPACED POSITIONS WITHIN SAID CHAMBBER, EACH OF SAID FLEXIBLE MEMBERS BEING NORMALLY OF A SUBSTANTTIALLY CYLINDRICAL CONFIGURATION AND OF SUBSTANTIALLY TTHE SAME LENGTH AS SAID ROTOR, BUT BEING DEPRESSED BETWEEN THE PERIPHERY OF SAID ROTOR AND SAID CHAMBER WALL INTO AN APPROXIMATELY ELLIPTICAL FORM, EACH OF SAID FLELXIBLE MEMBERS HAVING TEETH ON ITS EXTERIOR SURFACE WHICHENGAGE SAID ROTOR TEETH; THE CIRCUMFERENTIAL WALL OFF SAID CHAMBER HAVING TEETH FORMED THEREON WHICH ARE ENGAGED BY THE TEETH OF SAID FLEXIBLE MEMBERS; A FIRST OPENING IN AN END OF SAID HOUSING COMMUNICATING WITH SAID FIRST TAPEREDRADIUS PORTION OF SAID CHAMBER; AND A SECOND OPENING INN TAPERED RADIUS PORTIONN OF SAID CHAMBER.