초록 ▼

A hot melt adhesive material flow control system comprises an input manifold for receiving a supply of adhesive material, a plurality of flow control valves from which the adhesive material is discharged, an output manifold for heating the adhesive material and conducting the hot melt adhesive mater

A hot melt adhesive material flow control system comprises an input manifold for receiving a supply of adhesive material, a plurality of flow control valves from which the adhesive material is discharged, an output manifold for heating the adhesive material and conducting the hot melt adhesive material to the flow control valves, a pair of multiple outlet pumps for supplying the adhesive material to the flow control valves, and a recirculation pump for recirculating adhesive material back from the flow control valves to the pair of multiple outlet pumps. A distribution plate and a recirculation plate are interposed between the input and output manifolds and have separate and independent fluid circuits or flow paths defined upon opposite surfaces thereof. In this manner, the number of plates required to define the flow paths is significantly reduced. In addition, the output manifold, the flow control valves, the recirculation pump, and the multiple outlet pumps are independently mounted upon the input manifold so as to simply disassembly and reassembly of the components in connection with maintenance, cleaning, replacement, or repair operations.

대표청구항 ▼

A hot melt adhesive material flow control system comprises an input manifold for receiving a supply of adhesive material, a plurality of flow control valves from which the adhesive material is discharged, an output manifold for heating the adhesive material and conducting the hot melt adhesive mater

A hot melt adhesive material flow control system comprises an input manifold for receiving a supply of adhesive material, a plurality of flow control valves from which the adhesive material is discharged, an output manifold for heating the adhesive material and conducting the hot melt adhesive material to the flow control valves, a pair of multiple outlet pumps for supplying the adhesive material to the flow control valves, and a recirculation pump for recirculating adhesive material back from the flow control valves to the pair of multiple outlet pumps. A distribution plate and a recirculation plate are interposed between the input and output manifolds and have separate and independent fluid circuits or flow paths defined upon opposite surfaces thereof. In this manner, the number of plates required to define the flow paths is significantly reduced. In addition, the output manifold, the flow control valves, the recirculation pump, and the multiple outlet pumps are independently mounted upon the input manifold so as to simply disassembly and reassembly of the components in connection with maintenance, cleaning, replacement, or repair operations. ut engages the annular ridge on the spout end of the metering drum cap in a snap-fit action with sufficient force that the metering drum can rotate relative to the spout. 4. The container top of claim 1, wherein the cylindrical flange on the spout engages the annular ridge on the spout end of the metering drum cap in a snap-fit action with sufficient force that the metering drum can rotate relative to the spout. 5. The container top of claim 1, wherein the metering drum comprises first and second generally cylindrical parts joined together with a portion of each chamber located in each part. 6. The container top of claim 5, wherein the first part has the cylindrical flange that engages the annular ridge on the cap, the first part further having an annular ridge, the second part having a generally cylindrical flange sized to engage the ridge on the first part, the second part containing the annular ridge adjacent to the spout end of the metering drum. 7. The container top of claim 5, wherein the first and second parts have at least one mating projection and recess to prevent relative rotation of the first and second parts and join the parts together. 8. The container top of claim 1, wherein the chambers comprise three chambers having longitudinal axes generally parallel to the longitudinal axis of the container during use of the container top, the chambers being equally spaced at about 120 degree intervals about the longitudinal axis of the metering drum. 9. The container top of claim 1, wherein there are three openings in the spout end of the metering drum, with the openings being equally spaced and the openings sized so that the opening in the spout can be placed intermediate to each of the openings in the spout end of the metering drum without any of the openings in the spout overlapping any of the openings in the spout end of the metering drum. 10. The container top of claim 1, wherein the chambers include one chamber having a uniform cylindrical diameter the entire length of the metering drum. 11. The container top of claim 1, wherein the chambers include at least one chamber having a taper between a largest dimension of the chamber and the opening in the spout end of the metering drum. 12. A dispensing device for containers, the device having parts rotating relative to each other about a longitudinal axis, the dispensing device comprising; a cap having a recess sized and configured to engage a top of the container during use of the device, the cap having a surface with an opening therein through which contents from the container can pass during use of the device, the cap having a ridge on an exterior portion of the cap; a metering drum having a cylindrical flange with a distal end that resiliently engages the ridge on the cap to hold the drum to the cap while allowing the drum to rotate relative to the cap about the longitudinal axis, the drum having a cap end surface which is held against the surface of the cap by the flange, the drum having a spout end surface opposite and generally parallel to the cap end surface, with at least two chambers extending through the drum, one end of each chamber opening onto the cap end surface of the drum and an opposing end of each chamber opening onto the spout end surface, at least one of the chambers having an opening on the spout end of the drum that is smaller than the cross-sectional area of the at least one chamber, the openings on the cap end of the metering drum being located so they align with the opening in the cap when the drum rotates about the longitudinal axis, the metering drum having a ridge on an exterior portion of the cap adjacent to the spout end of the drum, the metering drum being formed from two parts with the chambers having a portion located in each of the two parts, the two parts being fastened together so the two parts do not rotate relative to each other; a spout having a surface generally parallel to the spout end surface of the metering drum and held a gainst that spout end surface by a flange extending from the spout to engage the ridge on the cap, the surface of the spout having a single opening with the openings in the spout end of the metering drum being located to align with the opening in the spout when the spout and metering drum are rotated about the longitudinal axis. 13. The dispensing device of claim 12, wherein the chambers include one chamber having a uniform cylindrical diameter the entire length of the metering drum. 14. The dispensing device of claim 13, wherein there are three chambers each having a longitudinal axis generally parallel to the longitudinal axis of the metering drum. 15. The dispensing device of claim 12, wherein each chamber that has a cross-sectional area larger than the area of the opening for that chamber on the spout end of the metering drum, has a taper connecting the opening on the spout end of the metering drum to the larger cross-sectional area, the taper being sufficient to encourage any contents of the chamber to flow out of the opening on the spout end of the metering drum toward the ground. 16. The dispensing device of claim 15, wherein there are three chambers, one of which has the same cross-sectional area as the opening of that chamber onto the spout end, the three chambers having longitudinal axes generally parallel to the longitudinal axis of the metering drum and located at about 120 degree intervals about the longitudinal axis of the metering drum. 17. A dispensing device for cylindrical containers comprising; a metering drum having a planar cap surface and an opposing planar spout surface with a plurality of chambers extending between those surfaces and opening onto those surfaces, at least one of the chambers having a cross-sectional area larger than an area of the opening on the spout surface, with a tapered interior surface of the chamber connecting the larger area to the smaller area opening; a cap having a portion adapted to fasten to the container during use of the device, the cap having a planar surface with a single opening therein, the cap being rotatably connected to the cap end of the metering drum, the openings in the cap surface of the metering drum being aligned with the opening in the planar surface of the cap; and a spout having a planar surface with an opening therein, the openings on the spout end of the metering drum being located to coincide with the opening in the planar surface of the spout. 18. The dispensing device of claim 17, wherein the metering drum is formed from two parts with each of the chambers having a portion located in each of the two parts. 19. The dispensing device of claim 18, wherein the two parts are fastened together by a flange on one part having a distal end that snaps over a ridge on the other part. 20. The dispensing device of claim 17, wherein there are three chambers each having a longitudinal axis generally parallel to the longitudinal axis of the metering drum and each equally spaced about the metering drum at about 120 degree intervals. on zone formation pressure, said method further comprising: said installing of said production packer further comprises positioning said production packer at a well depth above said first selected production zone and above said second selected production zone, and said installing of said production tubing within said well with said rig further comprises positioning said bottom end of said production tubing at a well depth above said first selected production zone and above said second selected production zone. 8. The method of claim 7, further comprising plugging off said first selected production zone at a well depth below said second selected production zone and above an uppermost perforation of said first selected production zone without utilizing a rig capable of pulling said production tubing. 9. The method of claim 7, further comprising filling said well with a second completion fluid having a density such that a hydrostatic pressure of said second completion fluid created within said wellbore adjacent said second selected production zone is less than said second selected production zone formation pressure. 10. The method of claim 7, further comprising perforating said second selected production zone without use of a rig capable of pulling said production tubing. 11. The method of claim 10, further comprising installing a second screen assembly adjacent said second selected production zone. 12. The method of claim 11, further comprising pumping fracturing slurry around said second screen assembly and into said second production zone with a sufficient pressure to fracture said second selected production zone. 13. A method of completing a well having a wellbore and one or more production zones comprising a first selected production zone with a first selected production zone formation pressure, comprising: filling said wellbore with a completion fluid having a density less than about eleven pounds per gallon to thereby produce a hydrostatic pressure within said wellbore adjacent said first selected production zone; installing production tubing within said well with a rig such that a bottom end of said production tubing is positioned at a well depth above said one or more production zones; applying an applied pressure to said wellbore such that a total pressure of said hydrostatic pressure and said applied pressure in said wellbore adjacent said first selected production zone is greater than said first selected production zone formation pressure; perforating said wellbore adjacent said first selected production zone; positioning a dual-screen assembly in said wellbore adjacent said first selected production zone; pumping fracturing slurry around said dual-screen assembly and into said first selected production zone. 14. The method of claim 13, further comprising removing excess components of said fracturing slurry above said dual-screen assembly from said wellbore without the use of coiled tubing. 15. The method of claim 14, wherein said step of removing excess components of said fracturing