초록 ▼

A drywall tape and texture system for pumping fluid material from a container to a work surface includes a pump housing, a compressed air supply, a plurality of air release mechanisms, and an inflatable bladder mounted within the pump housing and held between upper and lower valves for controlling t

A drywall tape and texture system for pumping fluid material from a container to a work surface includes a pump housing, a compressed air supply, a plurality of air release mechanisms, and an inflatable bladder mounted within the pump housing and held between upper and lower valves for controlling the flow of the material. The pump housing may be fully or partially immersed into a container filled with fluid material. An automatic pneumatic pressure relief valve automatically cycles open and closed whenever a control line is held closed by an operator. When the normally closed automatic air release mechanism is closed, the control line may also be closed by the operator, causing the bladder to inflate and pump fluid out of the pump housing. When the control line to the atmosphere is opened, the bladder deflates and a partial vacuum is created, thus refilling the pump through the lower valve.

대표청구항 ▼

A drywall tape and texture system for pumping fluid material from a container to a work surface includes a pump housing, a compressed air supply, a plurality of air release mechanisms, and an inflatable bladder mounted within the pump housing and held between upper and lower valves for controlling t

A drywall tape and texture system for pumping fluid material from a container to a work surface includes a pump housing, a compressed air supply, a plurality of air release mechanisms, and an inflatable bladder mounted within the pump housing and held between upper and lower valves for controlling the flow of the material. The pump housing may be fully or partially immersed into a container filled with fluid material. An automatic pneumatic pressure relief valve automatically cycles open and closed whenever a control line is held closed by an operator. When the normally closed automatic air release mechanism is closed, the control line may also be closed by the operator, causing the bladder to inflate and pump fluid out of the pump housing. When the control line to the atmosphere is opened, the bladder deflates and a partial vacuum is created, thus refilling the pump through the lower valve. et al., 215/012.2; US-6334548, 20020100, Ichikawa et al., 222/107 and energizing the sealing machine only if there is uninterrupted in-feed of said products into the sealing machine. 6. An apparatus for sorting and packaging irregular shaped products, comprising: a sorting apparatus comprising a main conveyor track for conveyance of supplied products to discharge conveyor tracks or packaging tracks, detection means for determining characteristics of products to be processed; a packaging unit for packaging a substantially uninterrupted product stream; the packaging unit being a sealing machine requiring, in operation, a substantially continuous supply of product, which sealing machine wraps the respective products individually and subsequently closes this wrapper with a heat seal; a control unit connected to the detection means and arranged for comparing the characteristics observed by the detection means with predetermined packaging requirements, and on the basis of this comparison selecting products that do not need to be packaged, and supplying the other, non-selected products to the sealing machine; the control unit being connected to product stream monitors for obtaining information about the continuity of the product stream supplied to the sealing machine; and the control unit being capable of energizing the sealing machine only when there is a substantially uninterrupted in-feed of said products into the sealing machine. 7. An apparatus according to claim 6, wherein the control unit is arranged for discharging the selected products that do not need to be packaged, to the discharge conveyor tracks, while, depending on the determined characteristics of a respective product, a discharge conveyor track associated with those characteristics is selected for the discharge, so that at each of the discharge conveyor tracks particular classes of products are delivered. 8. An apparatus according to claim 6, wherein the apparatus comprises a buffer conveyor which is arranged upstream of the packaging unit for the purpose of the uninterrupted in-feed of said other products into the packaging unit. 9. An apparatus according to claim 8, wherein the buffer conveyor, linking up with the main conveyor track, comprises, in succession, a first flat conveyor, a roller conveyor, and a second flat conveyor, while the uninterrupted in-feed is effected from the control by controlling and configuring the individual speeds of the conveyors. 10. An apparatus according to claim 6, wherein the total unit is connected to product stream monitors in order that information is available about the continuity of the product stream supplied to the packaging unit. 11. An apparatus for characterizing, selecting, classifying, sorting and packaging irregular shaped products comprising: a sorting apparatus, having: a feed roller track for continuously supplying products, a main conveyor track for conveyance of the supplied products to discharge conveyor tracks or packaging tracks, detection means for determining characteristics of the products and a computer having a control unit for controlling the detection means, and for processing and storing the characteristics of each product, and having a processing unit for classifying the products on the basis of the characteristics, for selecting the classified products, and for allocating the classified products to the discharge conveyor tracks or packaging tracks, wherein the processing unit, prior to allocation, compares the selected products with packaging requirements, wherein the products that do not satisfy the packaging requirements are allocated to and are discharged to the discharge conveyor tracks, and wherein the other products are discharged to at least one packaging unit; the packaging unit being a sealing machine requiring, in operation, a substantially continuous supply of product, which sealing machine wraps the respective products individually and substantially closes this wrapper with a heat seal; the control unit being connected to prod uct stream monitors for obtaining information about the continuity of the product stream supplied to the sealing machine; and the control unit being capable of energizing the sealing machine only when there is uninterrupted in-feed of said products into the sealing machine. 123/556 5421307 Jun. 6, 1995 et all 123/556 5899196 May 4, 1999 Chite 123/556 5996560 Dec. 7, 1999 Schechter 123/556 6102012 Aug. 15, 2000 Iiboshi 123/556 5915366 Jun. 29, 1999 et all 123/556 6314949 Nov. 13, 2001 DeGrazia Jr 123/556 6341598 Jan. 29, 2002 Jessberger 123/556