Method and apparatus for making dual compartment containers

Package making – Methods – Enclosing contents within progressively formed web means

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Details

53493, 53551, B65B 912, B65B 5714

Patent

active

041279760

ABSTRACT:
Method and apparatus for producing dual compartmented tubular containers which includes a system for pumping a high viscosity fluid at a constant flow rate and includes an air driven pump for pumping the fluid from a storage location to an output point. The pump is of the type which produces a substantially constant output per pump cycle. The pump is driven by an air supply communicating with the pump. A timer is attached to the output pump shaft and measures the cycle speed of the pump. The air pressure driving the pump is varied in response to the cycle speed of the pump to maintain the speed of the pump constant. Whenever the material being driven by the pump increases in viscosity, a slow down in the pump speed is prevented by increasing the air pressure used to drive the pump. Where the viscosity decreases and the pump speed begins to increase, the air pressure used to drive the pump is decreased to maintain a constant pump speed.

REFERENCES:
patent: 2749842 (1956-06-01), Angell et al.
patent: 3617151 (1971-11-01), Scroggins
patent: 3992854 (1976-11-01), Howell et al.
patent: 4023327 (1977-05-01), Simmons
patent: 4060736 (1977-11-01), Conners

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