IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0864601
(2001-05-24)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
10 |
초록
▼
A metered output hot melt adhesive dispensing system comprises a plurality of hot melt adhesive dispensing valve assemblies, and a multiple outlet metering gear pump for supplying hot melt adhesive material to the plurality of valve assemblies. Return ports of the valve assemblies are fluidically co
A metered output hot melt adhesive dispensing system comprises a plurality of hot melt adhesive dispensing valve assemblies, and a multiple outlet metering gear pump for supplying hot melt adhesive material to the plurality of valve assemblies. Return ports of the valve assemblies are fluidically connected to the intake side of the multiple outlet metering gear pump through a plurality of return conduits and a common return line. A single output return metering gear pump is disposed within the common return line and has operatively associated therewith a recirculation bypass loop within which a spring-biased one-way check valve is disposed. The system relieves excess pressure buildup within the valve assemblies so as to substantially prevent the occurrence of bursting and stringing phenomena attendant cyclically intermittent OPENED and CLOSED states of the plurality of valve assemblies.
대표청구항
▼
A metered output hot melt adhesive dispensing system comprises a plurality of hot melt adhesive dispensing valve assemblies, and a multiple outlet metering gear pump for supplying hot melt adhesive material to the plurality of valve assemblies. Return ports of the valve assemblies are fluidically co
A metered output hot melt adhesive dispensing system comprises a plurality of hot melt adhesive dispensing valve assemblies, and a multiple outlet metering gear pump for supplying hot melt adhesive material to the plurality of valve assemblies. Return ports of the valve assemblies are fluidically connected to the intake side of the multiple outlet metering gear pump through a plurality of return conduits and a common return line. A single output return metering gear pump is disposed within the common return line and has operatively associated therewith a recirculation bypass loop within which a spring-biased one-way check valve is disposed. The system relieves excess pressure buildup within the valve assemblies so as to substantially prevent the occurrence of bursting and stringing phenomena attendant cyclically intermittent OPENED and CLOSED states of the plurality of valve assemblies. ner comprising: a) a container body for holding a viscous liquid product to be dispensed, the container having an outlet; b) a fitment operatively connected in the outlet of the container, the fitment comprising: i) a cylindrical body having an inner wall defining a cylindrical bore having a first closed end and a second open end, the open end proximate the container outlet; ii) an aperture formed in the body, the aperture in fluid communication with the viscous liquid product to be dispensed; iii) a plunger having a cylindrical body slidable within the fitment cylindrical body and moveable between a closed position and dispensing position; and iv) a probe engaging member operatively connected to the cylindrical plunger body, the probe member positioned whereby there is an unobstructed flow path for the viscous liquid from the container, through the aperture and through the bore to the inlet of the reservoir, wherein placing the container on the probe moves the plunger from the closed position to the open position allowing the viscous product to be dispensed through the probe; and c) a biasing member positioned between the plunger and the closed end, thereby biasing the plunger in the closed position. 7. The container of claim 6, the aperture comprises first and second windows generally opposite each other on the cylindrical body and the probe engaging member comprises first and second legs, generally opposite each other and oriented to be positioned between the windows. 8. The container of claim 7, further comprising a keyed extension extending from the closed end of the bore and a mating keyway formed in the plunger, wherein the plunger is properly oriented in the bore so that the legs do not cover the windows and wherein the keyed extension comprises first and second members, the first member longer than the second member. 9. The container of claim 8, further comprising a biasing member positioned between the plunger and the closed end, thereby biasing the plunger in the closed position. 10. A liquid dispensing apparatus, comprising: a) a container for holding a viscous liquid product to be dispensed, the container having an outlet; b) a docking station for receiving the container, the docking station having a support for holding the container; c) a reservoir for receiving the viscous liquid product from the container, the reservoir having an inlet and an outlet; d) a docking cup operatively connected to the docking station, the docking cup having an inlet adapted to receive the outlet of the container and the docking cup having an outlet operatively connected to the inlet of the reservoir, the docking cup having a fitment engagement member; and e) a fitment operatively connected in the outlet of the container, the fitment comprising: i) a body having an inner wall defining a bore having a first closed end and second open end, the open end proximate the container outlet and the first end positioned inward, into the container; ii) an aperture formed in the body, the aperture in fluid communication with the viscous liquid product to be dispensed; iii) a plunger having a body slidable within the fitment body and moveable between a closed position and a dispensing position; and iv) a probe engaging member operatively connected to the plunger body, the probe engaging member proximate the inner wall, thereby having the bore be unobstructed, wherein placing the container on the docking cup moves the plunger from the closed position to the open position allowing the viscous product to be dispensed. 11. The apparatus of claim 10, wherein the body is cylindrical, the bore is cylindrical and plunger body is cylindrical. 12. The apparatus of claim 10, further comprising a biasing member positioned between the plunger and the closed end, thereby biasing the plunger in the closed position. 13. The apparatus of claim 10, the aperture comprises first and second windows generally opposite each other on the cylind rical body. 14. The apparatus of claim 13, the probe engaging member comprises first and second legs, generally opposite each other and oriented to be positioned between the windows. 15. The apparatus of claim 14, wherein the legs have a width that is less than a distance between the window, whereby the windows are unobstructed. 16. The apparatus of claim 15, further comprising a keyed extension extending from the closed end of the bore and a mating keyway formed in the plunger, wherein the plunger is properly oriented in the bore so that the legs do not cover the windows. 17. The apparatus of claim 16, wherein the keyed extension comprises first and second members, the first member longer than the second member. 18. A liquid dispensing apparatus, comprising: a) a container for holding a viscous liquid product to be dispensed, the container having an outlet; b) a docking station for receiving the container, the docking station having a support for holding the container; c) a reservoir for receiving the viscous liquid product from the container, the reservoir having an inlet and an outlet; d) a docking cup operatively connected to the docking station, the docking cup having an inlet adapted to receive the outlet of the container and the docking cup having an outlet operatively connected to the inlet of the reservoir, the docking cup having a fitment engagement member; e) a fitment operatively connected in the outlet of the container, the fitment comprising: i) a cylindrical body having an inner wall defining a cylindrical bore having a first closed end and a second open end, the open end proximate the container outlet; ii) an aperture formed in the body, the aperture in fluid communication with the viscous liquid product to be dispensed; iii) a plunger having a cylindrical body slidable within the fitment cylindrical body and moveable between a closed position and dispensing position; and iv) a probe engaging member operatively connected to the cylindrical plunger body, the probe member positioned whereby there is an unobstructed flow path for the viscous liquid from the container, through the aperture and through the bore to the inlet of the reservoir, wherein placing the container on the docking cup moves the plunger from the closed position to the open position allowing the viscous product to be dispensed; and f) a biasing member positioned between the plunger and the closed end, thereby biasing the plunger in the closed position. 19. The apparatus of claim 18, the aperture comprises first and second windows generally opposite each other on the cylindrical body. 20. The apparatus of claim 19, the probe engaging member comprises first and second legs, generally opposite each other and oriented to be positioned between the windows. 21. The apparatus of claim 20, wherein the legs have a width that is less than a distance between the window, whereby the windows are unobstructed. 22. The apparatus of claim 21, further comprising a keyed extension extending from the closed end of the bore and a mating keyway formed in the plunger, wherein the plunger is properly oriented in the bore so that the legs do not cover the windows. 23. The apparatus of claim 22, wherein the keyed extension comprises first and second members, the first member longer than the second member.
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