Sorption pump for pumping off gases and vapors

Claim 1

A VACUUM PUMP HAVING A PRELIMINARY VACUUM PUMP AND UTILIZING LOOSOE GRANULAR SORPTION MATERIAL FOR EVACUATING A VESSEL COMPRISING: AT LEAST TWO SORPTION PUMPS ARRANGED IN SERIES, EACH HAVING A SORPTION CHAMBER AND A REGENERATION CHAMBER SEPARATED BY WALL MEANS, THE SORPTION CHAMBER OF THE FIRST STAGE SORPTION PUMP BEING ADAPTED FOR COMMUNICATION WITH SAID VESSEL AND THE REGENERATION CHAMBER OF EACH SORPTION CHAMBER OF BEING IN COMMUNICATION WITH THE SORPTION CHAMBER OF THE ADJACENT SORPTION PUMP STAGE EXCEPT THE REGENERATION CHAMBER OF THE LAST STAGE WHICH IS ADAPTED TO BE CONNECTED TO SAID PRELIMINARY VACUUM PUMP, SLUICE MEANS FOR EACH SORPTION PUMP FOR CONVEYING SORPTION MATERIAL FROM THE SORPTION CHAMBER TO THE REGENERATION CHAMBER, AND VIBRATORY CONVEYOR MEANS FOR EACH SORPTION PUMP FOR CONVEYING SORPTION MATERIAL FROM THE REGENERATION CHAMBER TO THE SORPTION CHAMBER WITHOUT BODILY ACCOMPANYING THE SORPTION MATERIAL, SAID SORPTION MATERIAL ON SAID VIBRATORY CONVEYOR MEANS FORMING A SEAL BETWEEN SAID WALL MEANS AND SAID CONVEYOR MEANS TO PREVENT GASEOUS COMMUNICATION BETWEEN THE CHAMBERS OF A SORPTION PUMP.