Dispenser for viscous fluids

Claim 1

A DISPENSER FOR RELATIVELY VISCOUS FLUIDS SUCH AS BATTER, CONDIMENTS AND THE LIKE COMPRISING: A CYLINDRICAL CONTAINER FOR HOLDING A SUPPLY OF THE FLUID TO BE DISPENSED; A DISPENSING NOZZLE COMPRISING A CYLINDRICAL METERING CHAMBER HAVING AN OPEN END IN FLUID COMMUNICATION WITH SAID CONTAINER, THE OPPOSITE END OF SAID METERING CHAMBER BEING CLOSED BY A SPOUT MEMBER HAVING AN IMPERFORATE END WALL, SAID SPOUT MEMBER HAVING A PLURALITY OF OPENINGS IN THE SIDE WALLS THEREOF; PLUNGER MEANS EXTENDING THROUGH SAID CONTAINER AND INTO THE OPEN END OF SAID METERING CHAMBER FOR FORCING FLUID OUTWARDLY THROUGH SAID SIDE WALL OPENINGS, SAID PLUNGER MEANS INCLUDING A CHECK VALVE ALLOWING FLUID TO FLOW FROM SAID CONTAINER INTO SAID METERING CHAMBER BUT PREVENTING REVERSE FLOW BACK TO SAID CONTAINER; OPERATING MEANS FOR RECIPROCATING SAID PLUNGER MEANS; AND A RESILIENT COVER COMPRISING A SLEEVE ENCOMPASSING SAID SPOUT MEMBER AND CLOSING OFF SAID SIDE WALL OPENINGS, SAID SLEEVE BEING EXPANDABLE IN RESPONSE TO A BUILD UP OF FLUID PRESSURE IN SAID CHAMBER TO PERMIT DISCHARGE OF FLUID BETWEEN SAID SLEEVE AND THE EXTERNAL SURFACE OF SAID NOZZLE SO THAT SAID FLUID IS DISPENSED IN A PREDETERMINED PATTERN FROM SAID SPOUT MEMBER.