KR20010031166A - Unit dose dispense package - Google Patents

Abstract

The batch storage and dispense cartridge 10 for the batch contents 12 includes a storage and dispensing container for dispensably receiving the batch contents. The container 10 includes a cylindrical inner wall 18 that forms a cartridge passage 30 with a content receiving cavity. The container 10 further includes a first sealing member 70 which further forms a dispense opening 24 communicating with the contents storage cavity 36 and removably seals the dispense opening 24. The dispensing piston 34 is movable through the contents storage cavity 36 by the descher rod 15 to distribute the contents 12 through the dispensing opening 24. The openable vent 86 is positioned in engagement with the cartridge passage.

Description

One-time dispense package {UNIT DOSE DISPENSE PACKAGE}

The present invention relates to a batch cartridge container for the contents to be mixed in a predetermined amount of the mixed components. The present invention is typically used as a storage and dispense cartridge for vazo catalysts. Bazocatalysts are typically dispensed into a 5 gallon carboy filled with a heat curable impregnant. The mixed mixture is used to seal the porous metal or plastic part.

Typically the catalyst is added to the impregnating agent in the manufacturing plant where the mixture is also applied. The current method of mixing the catalyst with the impregnant involves manually scooping out the amount of bajo paste in a one-liter container with a wide inlet. When Bajo is added to a 5 gallon carboy, the carboy is closed and then shaken until Bajo is mixed with the impregnant.

However, the one liter container of the bajo catalyst contains one kilogram of the bajo catalyst which can catalyze about 7.6 carboys of the heat curing impregnant. Since the carboys of the heat cure impregnant typically have smaller openings than the bajo vessels, a certain amount of bajo scooped out and scraped requires complete transfer. Moreover, the variety of measuring tools used by each operator makes this mixing method difficult to precisely dispense with the ideal amount of catalyst to the carboy of the impregnant. As a result, the catalytic rate for the mixing of each carboy may vary from operator to operator. This discrepancy arises from Bajo's incorrect dispensing and prevents the precise amount of control applied.

These known methods of dispensing bazo catalysts also adversely affect humans and the natural environment. For example, handing out the bajo may expose the worker to the bajo paste itself, which is an irritant. Also, as liter containers do not provide Bajos to an even number of carboys, and because the method of scavenging does not provide a precise measurement of the amount of Bajos dumped, there is a small amount of bajo left in the discarded liters container to accumulate in the landfill. Can be.

The baux catalyst is mixed with the impregnant prior to shipment and freeze-loaded to maintain its viability. As the two contents are delivered to a number of factories far from the manufacturing side of the component, the cost of freezing shipment of the mixture increases, making the method unacceptably expensive.

Therefore, it would be desirable to provide carrier catalysts and dispense cartridges for bazo catalysts that take or eliminate risks to humans and the environment and provide assurance of more precise catalyst dispense into the heat set impregnant.

The present invention relates to the field of dispense containers. More particularly, the present invention relates to batch dispense containers for active catalysts for heat curable impregnants.

1 is an exploded view of a batch cartridge assembly and a desiccator rod of the present invention;

2 is a longitudinal cross-sectional view of a batch cartridge assembly of the present invention;

3 is an exploded view of the batch cartridge assembly of FIG. 2, and

4 is a longitudinal sectional view of the piston employed in the batch cartridge assembly of the present invention.

The present invention provides that a batch storage and dispenser cartridge for a batch of contents includes a storage and dispense container for dispensably receiving a batch of contents. The container includes a cylindrical inner wall forming a cartridge passage having a content-containing cavity. The container further includes a dispense opening that communicates with the contents storage cavity and includes a first sealing member for removably sealing the dispense opening. The dispensing piston is movable through the contents storage cavity by the descher rod to dispense the contents of the batch through the dispensing opening. The openable vent is positioned in connection with the cartridge passage. The desiccator rod may be provided for each cartridge or the single desiccant rod may be provided for a predetermined number of cartridges. Furthermore, the present invention can be provided in a kit form.

The present invention will be readily understood by reading "detailed description of the invention" with reference to the accompanying drawings.

1-3, the present invention provides a cartridge assembly 10 for dispensing containing an exact batch of contents. Assembly 10 is particularly useful for dispensing bazocatalyst 12 into a carboy of a thermal treatment impregnant (not shown). On the other hand, the present invention will be described to store and include a batch of baux catalyst 12. It will be appreciated that the present invention may be useful for storing and dispensing any content. Preferably the components of assembly 10 are formed of a suitable plastics material, except as described below. Assembly 10 includes a cartridge housing 14 containing an exact batch of catalyst 12. One example of a bajo catalyst that can be dispensed and contained by the cartridge catalyst 10 is "RESINOL." INITIAITOR PASTE "was assigned to the assignee of the present invention. A particularly suitable type of thermosetting impregnation agent to be mixed with the Bazo catalyst 12 is currently marketed by the assignee of the present invention under the trademark" 90C STOCK SOLUTION ".

The cartridge assembly 10 includes an elongate tubular cartridge housing 14. The cartridge housing 14 includes an elongate cylindrical wall 16 having an inner surface 18 and an outer surface 20. The cylindrical tube 16 includes a tip opening end 22 forming the injection opening 24 and a base opening end 26 forming a mechanical access, or dasher-insertion, opening 28. Doing. The cylindrical wall 16 forms an elongated cartridge interior 30 in fluid communication with the descher-insertion opening 28 and the injection opening 24. The outer surface 20 of the cylindrical wall 16 has an annular rib 32 in flush edge relationship with the second end 26. It is also contemplated that a label 33 with visual indication is attached to the outer surface 20 of the cylindrical wall 16.

The long, rigid descher rod 15 may be provided as a cartridge assembly 10 and as a kit, or one descher rod 15 may be provided to carry a unit of multiple cartridge assemblies. The descher rod 15 is preferably formed of a suitable plastic material and has an inclined first end 15a for insertion into the cartridge housing 14 and a second end at which the operator manually manipulates the first end 15a. 15b). The second end 15b preferably ends at the disc-shaped descher head 17. The length of the descher rod 15 may preferably be selected as described above. The function of the descher rod 15 may be performed by any of the above-described features, including by way of example and not limitation, screwdriver.

The assembly 10 further includes a piston 34 inserted into the cartridge interior 30 of the cartridge housing 14 to provide proper frictional engagement with the inner surface 18 of the cylindrical wall 16. When inserted into the cartridge housing 14, the piston 34 extends between the component storage cavity 36 extending between the piston 34 and the injection opening 24 and the desiccator-receiving opening 28. The cartridge inner portion 30 is further divided between the 38 portions. The cartridge housing 14 holds the Bajo catalyst 12 therein and injects Bajo catalyst 12 from the component storage cavity 36.

Referring further to FIG. 4, the piston 34 includes an elongated cylindrical piston wall 40 having a tip end 42 and a base end 44. The cylindrical piston wall 40 includes an outer piston wall surface 46, an inner piston wall surface 47 and forms a piston interior 48. The inner piston wall 47 is preferably formed of a plurality of annular rigid ribs 49 to provide increased structural rigidity to the cylindrical piston wall 40. The outer piston wall 46 is formed to provide adequate frictional engagement with the inner surface 18 of the cylindrical wall 16.

The round piston end wall 50 provides a convex surface 52 that extends from the tip end 42 and into the component storage cavity 36 of the assembly 10. The convex surface 52 ends in the central transverse plane 54. The end wall 50 also provides a recess face 56 facing the desiccant-receiving portion 38 of the housing 14 and the piston interior 48. The concave surface 56 borders the central plane 58 in the axial direction opposite the plane 54 in the circumferential direction. The descher-coupling hub 60 extends from the plane 58 toward the piston interior 48 and includes a cylindrical hub wall 62 that forms the descher receiving cavity 64. The hub 60 receives the tip end 15a of the descher rod 15 by friction or bonding.

The piston 34 preferably comprises a wiping rib 66 which annularly extends away from the tip end 42 of the cylindrical piston wall 40. The annular groove 68 is defined between the convex surface 52 and the wiping rib 66. The wiping rib 66 wipes with the inner surface 18 of the cylindrical wall 16 while the piston 34 is used to push the Bajo catalyst 12 through the component storage cavity 36 toward the injection end 22. It is formed to provide a bond. The wiping rib 66 therefore reduces the amount of residual bazo catalyst 12 remaining in the cartridge housing 14 after injection.

1 to 3, both the descher-insertion opening 28 and the injection opening 24 of the cartridge housing 14 are sealed for transport and storage purposes. Preferably, the cartridge housing 14 provides a sealed container of the Bajo catalyst 12. The injection seal 70 is fixedly removable on the injection opening 24. The injection seal 70 is preferably formed of a metal foil, such as aluminum foil or tin foil. The injection seal 70 may be attached to the cartridge housing 14 or simply held in place by the injection end cap 72.

While the dispense seal 70 is formed substantially circularly, it preferably provides a catchable tab 71 extending radially outward therefrom. The tab 71 assists the operator in dispensing the dispense seal 70 from the cartridge housing 14 before dispensing the Bajo catalyst 12. The dispensing end cap 72 is fixed on the dispensing seal 70 in frictional engagement with the dispensing end 24. The dispensing end cap 72 includes a substantially planar circular base 74 circumferentially bounded by a standing housing engagement wall 76. The housing engagement wall 76 may include an annular housing engagement rib 78 disposed over the circular base 74 to enhance the deflectable frictional engagement of the cartridge housing 14 and the housing engagement wall 76.

Since the cartridge assembly 10 may be exposed to high temperatures during storage and transport, a seal 80 with an outlet is provided to reduce the formation of a constant synthetic overpressure in the cartridge interior 30. The seal 80 with the outlet is removably attached to the proximal end of the tube above the descher-insertion opening 28. The seal 80 with the outlet is preferably formed of a metal foil such as aluminum foil or tin foil. The seal 80 with the outlet is preferably attached to the cartridge housing 14 or simply held in place by the proximal end cap 82. While the seal 80 with the outlet is substantially circular in shape, it preferably provides a catchable tab 81 extending radially outward therefrom. The tab 81 assists the operator in spreading the seal 80 with the outlet from the cartridge housing 14.

The seal 80 with the outlet includes a centrally located outlet hole 84 which is located in engagement with the desiccant-receiving portion 38 of the cartridge interior 30. The outlet hole 84 is covered from the cartridge interior 30 by a pressure-reducing outlet 86. The outlet 86 includes an outlet plug 88 that is engaged with the outlet hole 84. The discharge plug 88 is circumferentially bounded by the first thin plate member 90 and the second thin plate member 91 and is inserted concentrically between the first thin plate member 90 and the second thin plate member 91. The first thin plate member 90 is adhesively attached to the seal 80 with the outlet. The discharge plug 88 is preferably formed of microporous polytetrafluoroethylene. The outlet 86 is of a type known in the art and when the elevated temperature causes excessive pressure build-up in the cartridge interior 30, the outlet 86 opens to escape through the outlet hole 84 and permits high pressure air. Will prevent the exchange of air through the outlet holes 84 until.

The proximal end cap 82 is secured on the seal 80 and the annular rib 32 with the outlet to provide frictional engagement with the proximal end 26 of the cartridge housing 14. The proximal end cap 82 is a substantially disk-shaped member that includes a planar circular base 92 that defines a central hole 94 and is circumferentially bounded by an upstanding housing engagement wall 96. The center hole 94 is formed to be positioned in connection with the outlet hole 84 and is formed to allow the desiccant rod 15 to be inserted through the outlet hole to engage the piston 34. The center hole 94 is preferably too small to allow the dessicer head 17 through the center hole to prevent the circular base 92 from being pushed into the cartridge interior 30. . It is also desirable to expose the convex surface 52 of the piston 34 via the dispensing opening 24 while the piston 34 is removed from the cartridge interior 30 when the descher head 17 is in contact with the proximal end cap 82. The length of the desiccator rod 15 is selected optimally so that it may not come out.

The housing engagement wall 96 of the end cap 82 has an annular housing engagement rib 98 disposed over the circular base 92 to enhance the deflectable frictional engagement of the cartridge housing 14 and the housing engagement wall 96. It may include. The proximal end cap 82 must also be deflectably engaged with the annular rib 32 protruding from the outer cylindrical wall 20 and the dispensing end cap 72 which is required to only deflectably engage the outer cylindrical wall 20. As such, the assembly 10 preferably requires an adjacent end cap 82 to have a larger seal diameter than the dispensing end cap 72. By providing end caps 72 and 82 with different sealing diameters, the assembly 10 ensures that the end caps 72 and 82 are positioned over each appropriate end 22 and 26 of the tube 16. Provide the characteristics.

The cartridge assembly 10 may therefore be configured to hold about 130 grams of the Bazzo catalyst 12 for mixing with the correct batch, ie, a 5 gallon carboy of thermal treatment impregnation. The present invention minimizes the worker's exposure to the bajo catalyst 12 by providing a disposable disposable cartridge that minimizes the treatment of the components that the worker contacts with the bajo. In addition, by providing an accurate batch of Bazo catalyst 12 and treating it cleanly, the present invention significantly reduces the amount of excess or unused Bazo catalyst paste that can be discarded.

The operator can inject the Bazo catalyst 12 from the cartridge assembly 10 as follows. The descher rod 15 is inserted through the central hole 94 of the distal end cap 82 to drill the vent seal 80 to extend through the descher-receiving portion 38 and to engage the piston 34. . The tapered first end 15a of the descher rod 15 preferably extends partially into the descher receiving cavity 64 and engages with the hub wall 62 of the descher-combining hub 60. The operator then removes the fill injection seal 70 and the injection end cap 72 from the tip end 22 of the cartridge housing 14 to expose the bajo catalyst 12. The injection opening 24 is in a position within or in combination with the opening of the carboy of the thermoset impregnant. Holding the cartridge housing 10 in the carboy opening, the operator pushes onto the descher head 17 of the descher rod 15 to push the piston 34 away toward the injection opening 24 to inject the Bajo catalyst 12 into the carboy. do. As the piston 34 moves toward the injection opening 24, the wiping rib 66 slides wipeably along the inner cylindrical wall 18 to minimize residual catalyst 12 remaining in the cartridge housing 30. . The operator continues to push the piston 34 away until the convex surface 50 extends completely out of the cartridge interior 30. In this fully extended position, the cylindrical piston wall 40 engages while still rubbing against the inner cylindrical wall 18. Therefore, the length of the descher rod 15 should preferably be chosen so long as to fully extend the convex portion 50 from the cartridge interior 30 and to inadvertently pressurize the piston 34 from the cartridge interior 30. .

While the preferred embodiments of the invention have been shown and described in detail above, those skilled in the art will recognize that changes and modifications can be made without departing from the teachings of the invention. Accordingly, the foregoing description and accompanying drawings are for illustrative purposes only and are not intended to be limiting. The true scope of the invention is defined by the claims.

Claims (20)

In unit dose storage and dispenser for materials, A first end partitioning the dispensing opening, a second end partitioning the rush insertion opening, and an elongated passageway extending between the dispensing opening and the access opening; A first cover releasably sealingly attached to said first end in a male and female engagement with said dispensing opening; A second cover releasably sealingly attached to said second end in a male and female engagement with said rushing insertion opening; A piston member slidably received in said passage, said piston member having a first major surface and a second major surface facing said passage, said passageway between said first major surface of said piston and said first end of said material storage cavity; A piston member positioned within the container to define a material storage cavity of the material, the piston member having a volume capable of receiving a unit dose of the material; A rush rod engageable with the second major surface of the piston member and insertable through the rush insertion opening to enable a slidable movement of the piston member to dispense the unit dose of material through the dispensing opening. ; And And a pressure vent supported on the container for venting internal pressure generated in the material storage cavity of the passage prior to insertion of the rush rod through the rush insertion opening. And divider. The cartridge as claimed in claim 1, wherein said component is a bacocatalyst. The cartridge of claim 1, wherein the first cover further comprises a first cap attached to the first end. 4. The cartridge of claim 3, wherein said first cover further comprises a first cap attached to said first end. The cartridge according to claim 4, wherein said second cover comprises a second metal foil member attached to said container. 6. The cartridge of claim 5, wherein the second cover further comprises a second cap attached to the second end and having a sealing diameter different from the first cap. The cartridge according to claim 5, wherein the second metal foil member further supports the pressure discharge port. 7. The cartridge of claim 6, wherein said second cap defines a pushrod aperture for passage of a pushrod to engage said second major surface. A cartridge as claimed in claim 1 wherein said first major surface of said piston has a bow shape. The cartridge of claim 1, wherein the piston further comprises a deflectable annular rim to eliminate sliding engagement with the inner surface. A cartridge according to claim 1, wherein said second major surface of said piston defines a pushrod receiving hub for engaging said desher. A kit for storing and dispensing unit dose material in a volume of a mixture, A long hollow storage and dispensing cartridge releasably receiving a unit dose of the material in a sealed containment, the cartridge defining an elongated cartridge passageway communicating between the dispensing end and the rushing insertion end; A piston adapted to slidably wipe with the cartridge in the cartridge passage, the piston having the unit dose of the material being positioned between the dispensing opening and the piston; A pair of removable sealing members adapted to releasably sealingly engage the end, wherein the pair of sealing members are configured to include an open pressure vent, one of the pair of sealing members; And And a rush rod operable with said piston through said rush insert end to dispense said unit dose of said material in a single stroke. A unit dose storage and dispenser cartridge for a unit dose of material, A storage and dispensing container dispensably containing a unit dose of said material, said first sealing member having a cylindrical inner wall defining a cartridge passageway having a material-carrying material storage cavity and removably sealing said dispensing opening; The storage and dispensing container including a compartment and defining a dispensing opening communicating with the contents storage cavity; A dispensing piston movable through the material storage cavity to dispense the unit dose of material through the dispensing opening; And And an actuated vent positioned in male and female engagement with the cartridge passageway. 15. The cartridge of claim 13, wherein the first sealing member comprises a first end cap pasted over the first metal foil member and a first metal foil member pasted over the dispense opening. 15. The cartridge of claim 14, wherein said first foil member is attached to said container. 14. The container of claim 13, wherein the container comprises a desiccator opening, a second end cap attached over the foil metal member, positioned at the dispensing dispensing opening and formed by the annular protrusion on the container, wherein the second foil metal foil is And a cartridge for supporting said exhaust means. 17. The cartridge of claim 16, wherein said second end cap further defines a push rod aperture for passage of a push rod to engage said dispense piston. 14. The cartridge of claim 13, wherein the dispense piston includes an arched surface proximate the contents and a deflectable annular rim to eliminate sliding engagement with the inner wall of the container. 15. The cartridge of claim 13, wherein the contents are a Bazo catalyst paste that is dispensed into a container of heat treatment impregnant. 15. The cartridge of claim 13, further comprising a desiccator releasably engageable with the dispense piston through a desiccator opening to urge the piston towards the dispense opening.