B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
302/28
B65G 53/66 (2006.01)
Patent
CA 1332750
PRODUCT PUMP SYSTEM Inventor: Robert D. Heyl ABSTRACT OF THE DISCLOSURE A dust-free, vented arrangement comprising a self- contained filter dump station combined with a compressed gas product pump for conveying dry free-flowing material. The filter dump station is for receiving the dry free-flowing particulate material which has been transported in a bag or drum or the like and is emptied through a grate in the apparatus into a hopper. Dust-laden air produced by this process is communicated to a filter section where that air passes through filter media for collection of the dust particles and is exhausted to the atmosphere. The filter media are cleaned by jets of pressurized gas removing the dust particles therefrom, and the dust particles are allowed to drop into the hopper. The hopper serves to feed the material into the product pump. The product pump has a product chamber, a product receiving inlet communicating with the product chamber, a product discharge outlet communicating with the product chamber, and a pressurized gas inlet also communicating with the product chamber. A receiving inlet valve is connected to the product receiving inlet for regulating the flow of product through the product receiving inlet into the product chamber. A pressurized gas inlet valve is connected to the pressurized gas inlet for regulating the flow of compressed gas into the product chamber. The pressurized gas inlet means includes upper and lower inlets. The upper inlet is positioned so that the pressurized gas passing through it generally impacts the upper portion of the product in the product chamber when filled and also pressurizes the product chamber. The lower inlet is positioned so that the pressurized gas passing through it sweeps the product on the floor of the product chamber out through the product discharge outlet. A vent communicates with the product chamber and serves to permit venting of the product chamber after the product in the chamber has bean discharged out through the product discharge outlet and after the inlet valve has closed the pressurized gas inlet. A venting line valve regulates the flow of gas from said product chamber out through the vent. The vent line may communicate with the filter section of the dump station so that the vented discharge is filtered and any product carried therewith if salvaged.
614832
Fetherstonhaugh & Co.
Young Industries Inc. (the)
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