Handheld valve dispensers and related methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05B-011/00
B05C-017/005
B05C-005/02
B05C-011/10
출원번호
US-0718416
(2015-05-21)
등록번호
US-9656287
(2017-05-23)
발명자
/ 주소
Conner, Scott A.
Strong, Warren N.
출원인 / 주소
Nordson Corporation
대리인 / 주소
Baker & Hostetler LLP
인용정보
피인용 횟수 :
0인용 특허 :
11
초록▼
A handheld valve dispenser includes a barrel having proximal and distal ends and a fluid chamber adapted to store a fluid. A dispense tip is coupled to the distal end of the barrel and includes a piercing element and a valve seat. The piercing element is configured to pierce the seal and establish a
A handheld valve dispenser includes a barrel having proximal and distal ends and a fluid chamber adapted to store a fluid. A dispense tip is coupled to the distal end of the barrel and includes a piercing element and a valve seat. The piercing element is configured to pierce the seal and establish an aperture therethrough when the dispense tip is first coupled to the barrel. A valve stem is received within the fluid chamber and is movable between a closed position in which the valve stem sealingly contacts the valve seat to prevent fluid dispense, and an open position for dispensing fluid. The barrel may include an outer barrel member and a disposable inner barrel liner removably received within the outer barrel member.
대표청구항▼
1. A handheld valve dispenser for dispensing a fluid, the dispenser comprising: a barrel including a proximal end, a distal end having a seal, and a fluid chamber extending between the proximal end and the distal end and adapted to store the fluid;a dispense tip coupled to the distal end of the barr
1. A handheld valve dispenser for dispensing a fluid, the dispenser comprising: a barrel including a proximal end, a distal end having a seal, and a fluid chamber extending between the proximal end and the distal end and adapted to store the fluid;a dispense tip coupled to the distal end of the barrel and including a piercing element and a valve seat, the piercing element configured to pierce the seal and establish an aperture therethrough when the dispense tip is first coupled to the barrel; anda valve stem received within the fluid chamber and movable between a closed position in which the valve stem sealingly contacts the valve seat to prevent the fluid from being dispensed and an open position in which the valve stem is spaced from the valve seat to allow the fluid to be dispensed through the dispense tip. 2. The handheld valve dispenser of claim 1, wherein the seal includes a membrane. 3. The handheld valve dispenser of claim 1, wherein the dispense tip further includes a tip hub, the piercing element and the valve seat being provided on the tip hub. 4. The handheld valve dispenser of claim 1, wherein the piercing element includes a tapered portion configured to maintain the aperture in the seal when the dispense tip is coupled to the barrel. 5. The handheld valve dispenser of claim 1, wherein the valve seat is formed on the piercing element. 6. The handheld valve dispenser of claim 1, wherein one of the dispense tip and the barrel includes at least one radial projection and the other of the dispense tip and the barrel includes at least one radial depression that engages the at least one radial projection when the dispense tip is coupled to the barrel to hinder relative rotation between the dispense tip and the barrel. 7. The handheld valve dispenser of claim 1, wherein the barrel includes an outer barrel member and a disposable inner barrel liner received within the outer barrel member. 8. The handheld valve dispenser of claim 7, wherein the disposable inner barrel liner is formed of a blow-molded plastic material. 9. A dispense tip for use with a handheld valve dispenser including a barrel having a proximal end, a distal end having a seal, a fluid chamber extending between the proximal end and the distal end, and a valve stem movable within the fluid chamber between a closed position to prevent a fluid from being dispensed and an open position to allow the fluid to be dispensed through the dispense tip, the dispense tip comprising: a piercing element configured to pierce the seal and establish an aperture therethrough when the dispense tip is first coupled to the barrel;a valve seat configured to sealingly contact the valve stem in the closed position; anda tip needle configured to dispense the fluid. 10. The dispense tip of claim 9, further comprising: a tip hub coupleable to the distal end of the barrel, wherein the piercing element, the valve seat, and the tip needle are provided on the tip hub. 11. The dispense tip of claim 9, wherein the piercing element includes a tapered portion configured to maintain the aperture in the seal when the dispense tip is coupled to the barrel. 12. The dispense tip of claim 9, wherein the valve seat is formed on the piercing element. 13. The dispense tip of claim 9, wherein the dispense tip includes at least one of a radial projection or a radial depression adapted to engage a corresponding at least one of a radial depression or a radial projection on the barrel when the dispense tip is coupled to the barrel to hinder relative rotation between the dispense tip and the barrel. 14. A handheld valve dispenser for dispensing a fluid, the dispenser comprising: a disposable barrel liner having a proximal end, a distal end having a seal, and a fluid chamber extending between the proximal end and the distal end and adapted to store the fluid and to receive a valve stem; anda dispense tip coupleable to the disposable barrel liner and including: a piercing element configured to pierce the seal and establish an aperture therethrough when the dispense tip is first coupled to the disposable barrel liner, anda valve seat provided on the piercing element and configured to sealingly contact a valve stem. 15. The handheld valve dispenser of claim 14, wherein the dispense tip further includes a tip hub, the piercing element being provided on the tip hub. 16. The handheld valve dispenser of claim 14, wherein the piercing element includes a tapered portion configured to maintain the aperture in the seal when the dispense tip is coupled to the disposable barrel liner. 17. The handheld valve dispenser of claim 14, wherein the disposable barrel liner is configured to be received within an outer barrel member, and wherein the dispense tip includes at least one of a radial projection or a radial depression adapted to engage a corresponding at least one of a radial depression or a radial projection on the outer barrel member when the dispense tip is coupled to the disposable barrel liner to hinder relative rotation between the dispense tip and the outer barrel member. 18. The handheld valve dispenser of claim 14, wherein the seal includes a membrane. 19. The handheld valve dispenser of claim 14, wherein the disposable barrel liner is formed of a blow-molded plastic material. 20. A handheld valve dispenser for dispensing a fluid, the dispenser comprising: a barrel having a proximal end, a distal end, and a fluid chamber extending between the proximal end and the distal end and adapted to store the fluid;a valve stem received within the fluid chamber and movable between a closed position in which the valve stem contacts a valve seat positioned proximate the distal end of the barrel to prevent the fluid from being dispensed, and an open position in which the valve stem is spaced from the valve seat to allow the fluid to be dispensed;a closure releasably coupled to the proximal end of the barrel;a first air inlet housed within the closure and configured to receive air for pressurizing the fluid chamber;a second air inlet housed within the closure and configured to receive air for actuating the valve stem between the closed position and the open position an air chamber; and an air piston coupled to the valve stem and movable within the air chamber to move the valve stem between the closed position and the open position, wherein the first air inlet communicates with the fluid chamber and the second air inlet communicates with the air chamber, and wherein the first air inlet and the second air inlet are coupled to the air piston. 21. The handheld valve dispenser of claim 20, wherein the closure includes a closure base and a closure cap coupled to the closure base, and the air chamber is defined by the closure base. 22. The handheld valve dispenser of claim 20, wherein the barrel includes an outer barrel member and a disposable inner barrel liner received within the outer barrel member, the disposable inner barrel liner defining the fluid chamber. 23. A method of assembling a handheld valve dispenser configured to dispense a fluid and including a barrel having a distal end provided with a seal and the barrel defining a fluid chamber adapted to store the fluid, a dispense tip having a piercing element and a valve seat, and a valve member having a valve stem, the method comprising: inserting the valve member into the fluid chamber of the barrel;coupling the dispense tip to the distal end of the barrel;piercing the seal with the piercing element to establish an aperture through the seal; andsealingly contacting the valve seat with the valve stem. 24. The method of claim 23, wherein the piercing element includes a tapered portion, the method further comprising: maintaining the aperture in the seal with the tapered portion. 25. The method of claim 23, wherein the valve seat is provided on the piercing element, and sealingly contacting the valve seat with the valve stem includes contacting the piercing element. 26. The method of claim 23, wherein the dispense tip includes at least one of a radial projection or a radial depression and the barrel includes a corresponding at least one of a radial depression or a radial projection, the method further comprising: engaging the at least one of a radial projection or a radial depression on the dispense tip with the corresponding at least one of a radial depression or a radial projection on the barrel to hinder relative rotation between the dispense tip and the barrel. 27. The method of claim 23, further comprising: filling the fluid chamber of the barrel with the fluid;sealingly contacting the valve seat with the valve stem to prevent the fluid from being dispensed; andmoving the valve stem to a position spaced from the valve seat to allow the fluid to be dispensed through the dispense tip. 28. A method of assembling a handheld valve dispenser including a disposable barrel liner having a distal end provided with a seal and defining a fluid chamber adapted to store a fluid and adapted to receive a valve stem, the handheld valve dispenser further including a dispense tip having a piercing element and a valve seat provided on the piercing element, the method comprising: coupling the dispense tip to the distal end of the disposable barrel liner to: pierce the seal with the piercing element to establish an aperture through the seal; andposition the piercing element through the aperture such that the valve seat is positioned to sealingly contact the valve stem; andmaintaining the aperture through the seal so that the fluid in the fluid chamber may be dispensed through the dispense tip when the valve stem is provided in an open position. 29. The method of claim 28, wherein the piercing element includes a tapered portion, and maintaining the aperture through the seal includes supporting the pierced seal with the tapered portion. 30. The method of claim 28, wherein the disposable barrel liner includes a first thread and the dispense tip includes a second thread, and piercing the seal with the piercing element is accomplished by threadedly engaging the first thread with the second thread. 31. The method of claim 28, wherein the seal includes a membrane, and piercing the seal includes piercing the membrane. 32. A method of dispensing a fluid with a handheld valve dispenser including a barrel having a fluid chamber adapted to store the fluid and a distal end provided with a seal, a valve stem, a dispense tip having a piercing element and a valve seat, a first air inlet, and a second air inlet, the method comprising: filling the fluid chamber with the fluid;coupling the dispense tip to the barrel to: pierce the seal with the piercing element to establish an aperture through the seal; andprovide the valve stem in a closed position in which the valve stem sealingly contacts the valve seat to prevent the fluid from being dispensed;receiving air through the first air inlet for pressurizing the fluid chamber;receiving air through the second air inlet for actuating the valve stem to an open position in which the valve stem is spaced from the valve seat; anddispensing the fluid while the valve stem is in the open position. 33. The method of claim 32, wherein receiving air through the first air inlet includes receiving a stream of air having a substantially constant pressure. 34. The method of claim 32, wherein receiving air through the second air inlet includes receiving a stream of air having a pulsed pressure. 35. The method of claim 32, wherein the handheld valve dispenser defines an air chamber, and further comprises an air piston movable within the air chamber and coupled to the valve stem, wherein actuating the valve stem to the open position includes directing the air received through the second air inlet into the air chamber to actuate the air piston. 36. A handheld valve dispenser for dispensing a fluid, the dispenser comprising: a disposable barrel liner having a proximal end, a distal end having a seal, and a fluid chamber extending between the proximal end and the distal end and adapted to store the fluid and to receive a valve stem; anda dispense tip coupleable to the disposable barrel liner and including a piercing element configured to pierce the seal and establish an aperture therethrough when the dispense tip is first coupled to the disposable barrel liner,wherein the disposable barrel liner is configured to be received within an outer barrel member, and wherein the dispense tip includes at least one of a radial projection or a radial depression adapted to engage a corresponding at least one of a radial depression or a radial projection on the outer barrel member when the dispense tip is coupled to the disposable barrel liner to hinder relative rotation between the dispense tip and the outer barrel member. 37. The handheld valve dispenser of claim 36, wherein the dispense tip further includes a tip hub, the piercing element being provided on the tip hub. 38. The handheld valve dispenser of claim 36, wherein the piercing element includes a tapered portion configured to maintain the aperture in the seal when the dispense tip is coupled to the disposable barrel liner. 39. A handheld valve dispenser for dispensing a fluid, the dispenser comprising: a barrel having a proximal end, a distal end, and a fluid chamber extending between the proximal end and the distal end and adapted to store the fluid;a valve stem received within the fluid chamber and movable between a closed position in which the valve stem contacts a valve seat positioned proximate the distal end of the barrel to prevent the fluid from being dispensed, and an open position in which the valve stem is spaced from the valve seat to allow the fluid to be dispensed;an air chamber defined by the dispenser;an air piston coupled to the valve stem and movable within the air chamber to move the valve stem between the closed position and the open position;a first air inlet communicating with the fluid chamber, and configured to receive air for pressurizing the fluid chamber; anda second air inlet communicating with the air chamber, and configured to receive air for actuating the air piston to move the valve stem between the closed position and the open position wherein the first air inlet and the second air inlet are coupled to the air piston.
Kiernan Bernard C. (Richmond VA) Semp Bernard A. (Richmond VA) Driscoll Dennis M. (Richmond VA) Bilunas David L. (Richmond VA), Method and apparatus for dispensing a constant controlled volume of adhesive.
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