FORM - 2
THE PATENTS ACT, 1970
(39 OF 1970)
PATENT OF ADDITION
(See Section 54)
TITLE OF INVENTION


"Single piece re-closable Unit pack"
(a) Bilcare Limited (b) a company registered under the companies Act 1956 and (c) having its office at 601 ICC Trade Tower, Pune 411 016, India
The following specification particularly describes the nature of the invention the manner in which it is performed.


Field of the Invention
This application is a Patent of Addition to the Patent Application Titled: "Single piece re-closable Unit pack" with Application No. 2597/MUM/2008 dated 12/12/2008. The invention of this Patent of Addition is a modification of the invention claimed in the above mentioned main patent application.
The present invention relates to a one piece re-closable unit pack such as blister pack. Further the said re-closable and lockable blister pack is optionally constructed to provide child resistant capability and / or unique identifiers to aid in establishing the authenticity and genuineness of a packaged product.
Background of the invention
Packs such as blister packs that comprises of one or plurality of deformable protrusions formed in a flexible sheet with a closure for each of the protrusions are primarily but not exclusively used to packaged in products such as medicaments. Products in blister packs are either sold as such or are generally encased in a container for extra protection during transportation and handling. The container serves multiple purposes like providing protection to the blister pack (s), serve as a substrate to display product information and /or usage instructions, lockable provisions to serve as child resistant packs, etc.. Further, establishing the authenticity and genuineness of a packaged product is essential as counterfeited products when consumed can cause grave harm to the end users.
United States Patent 5954202 discloses a Paperboard blank for a self-contained, reclosable package. It relates to paperboard blanks which are used to form self-contained, reclosable packages. Structures of this type, generally, are comprised of one piece of paperboard that when folded act as an outer package when sealed and an innovative reclosable package after being opened.
United States Patent 6047829 discloses a unit dose packaging system (UDPS) having a child resistant locking feature. The invention relates to a two piece paperboard package that houses a unit dose product on an internal slide card within an outer paperboard shell. This package may have one or more internal or external lock(s) that prevent the slide card from being pulled out without triggering
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some type of lock release mechanism. This package is focused around providing a child resistant, senior-friendly unit dose package that can be opened and closed numerous times and then finally disposed of.
Indian patent application no. 2597/MUM/2008 provides a single piece re-closable
unit pack comprising
a first layered structure wherein one or plurality of containment(s) are formed to
contain product(s) wherein the said containment(s) up stand from first surface of
the said first layered structure thereby creating one or plurality of corresponding
opening/s on the second surface of the said first layered structure,
a second layered structure affixed to the unformed region of the second surface of
the first layered structure
wherein portion of the second layered structure corresponding to the opening of
the containment(s) is ruptured to remove the product,
at least two portions comprising the containment(s) wherein the region between
the said portions is foldable;
optionally one or plurality of unformed portion/s
wherein the said containment(s) of each of the said portions are disposed such
that upon folding the said portions, containment(s) do not overlap;
engaging and corresponding receiving provision disposed on the said portion/s
such that the said portions are held together when folded.
However many clinical indications require the patient to take limited dosages and hence the packaging must be tailored to meet such a need so as to ensure patient compliance and also avoid wastage of the medicines. This necessitates the development of a one piece re-closable unit pack such as blister pack that comprises of containments only on one of the portions yet has the capability of being self enclosable / re-closable and also eliminating the need of additional carton / closure to encase / house the pack along with optional child resistant characteristics.
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Summary of the Invention
The main object of the invention is to provide a single piece re-closabJe unit pack such as blister pack that is provided with single portion with containments.
Yet another object of the invention is to provide a single piece re-closable unit pack that has self enclosing / re-closing capability.
Yet another object of the invention is to provide a single piece re-closable unit pack with child resistant characteristics.
Thus in accordance with the invention in this patent of addition (to the main patent
2597/MUM/2008 dated 12/12/2008) provides a unit pack comprising:
a single piece re-closable unit pack comprising
a first layered structure wherein one or plurality of containment(s) are formed to
contain product(s) wherein the said containment(s) up stand from first surface of
the said first layered structure thereby creating one or plurality of corresponding
opening/s on the second surface of the said first layered structure,
a second layered structure affixed to the unformed region of the second surface of
the first layered structure
wherein portion of the second layered structure corresponding to the opening of
the containment(s) is ruptured to remove the product,
single portion comprising the containment(s) and at least one unformed portion
wherein the region between the said portions is foldable;
engaging and corresponding receiving provision disposed on the said portion/s
such that the said portions are held together when folded.
This modification to the invention in the main patent application meets the requirement of a one piece re-closable unit pack such as blister pack that comprises of containments only on one of the portions yet has the capability of being self enclosable / re-closable and also eliminating the need of additional carton / closure to encase / house the pack along with optional child resistant characteristics.
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Description of the Invention
Features and advantages of the invention will become apparent in the following
detailed description and the preferred embodiments with reference to the
accompanying drawings.
Figure 1 Schematic of the package (Sheet 1)
Figure 2 Schematic of the package (Sheet 2)
One of the embodiments of the packs is depicted in Figure 1. It comprises of a first layered structure 1 in the form of a mono or muiti layered structure in which one or plurality of enclosed spaces containment(s) 2 are formed to contain the product(s) wherein the said containment(s) up stand from first surface of the said first layered structure defining one or plurality of corresponding opening/s in a second surface of the said first layered structure (not shown). The pack further comprises of a second rupturable layered structure 3 (closure) (refer Figure 1(c)) that encloses the said containment(s) wherein portion of the enclosing lamina corresponding / superimposed to the containment(s) portion is ruptured/ removed while removing the product wherein the said layered structure is secured / bonded / affixed / attached to the unformed portion of the second surface of the first layered structure to enclose the said openings to seal the products in the upstanding containment(s). As shown in Figure 1(b), an unformed portion / region 4 is disposed between the portions indicated as 10 and 20 wherein the portion 20 comprises of cluster of containment(s) portion of the formed cavities wherein the said portion 4 is adapted for fold/ to facilitate fold such that the portions 10 and 20 are laid down / overlay on each other upon folding as shown in the Figure 1(c). The provision of clusters in only one portion reduces multiple pass of the sheet through the forming machine.
To hold both the portions together when folded, an engaging provision is provided in the form of a raised region / projection 7 in the vicinity of the said portion 10 wherein corresponding to raised region / projection 7 is provided with a receiving provision in the form of a recesses 8 to removably receive 7 on the other portion
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20 such that when folded 7 is pressfitted in the recesses 8. Optionally the boundary of the portions 10 and 20 are defined by stiffners in the form of formed portion indicated as 9 in Figure 1(c).
Yet another variant of this embodiment is depicted in Figure2. As described in Figure 1, it comprises of a first layered structure 1 in which one or plurality of enclosed spaces containment(s) 2 are formed to contain the product(s) wherein the said containment(s) up stand from first surface of the said first layered structure defining one or plurality of corresponding opening/s in a second surface of the said first layered structure (not shown). The pack further comprises of a second layered structure 3 (closure) that encloses the said containment wherein portion of the enclosing layered structure corresponding / superimposed to the containment portion is ruptured/ removed while removing the product wherein the said second layered structure is secured / bonded / affixed / attached to the unformed portion of the second surface of the first layered structure to enclose the said openings to seal the products in the upstanding containment(s).
A unformed portion / region 4 is disposed between the portions indicated as portion 10 of cluster of containment(s) of the formed cavities and unformed portion indicated by 20 and between the unformed portions indicated by 20 and 30 wherein the said portion 4 is adapted for fold/ to facilitate fold such that the portions 10 and 20 and portions 10 and 30 are laid down / overlay on each other upon folding as shown in the Figure 2(b) and Figure 2(c ) respectively. To hold both the portions together when folded, an engaging provision is provided in the form a raised regions / projections 7 disposed along the periphery of the portion 30 wherein corresponding to raised regions / projections 7 is provided with a receiving provisions in the form of an opening 8 to removably receive 7 on the other portion 10 such that when folded 7 is engaged in the opening 8 as shown in the Figure 2(c). The portions 10 and 20 are provided with stiffner provision 11 and 21 respectively along the periphery of the said portions as seen in Figure 2 (b). As shown in Figure 2(c) the unformed portion between the said portions 10 and 20 is folded so that the portion 10 overlays on the portion 20 to cover the
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containments of portion 10. Further the unformed portion between the said portions 20 and 30 is folded so as to overlay on the portion 10.
Thus it is evident that the provision of single portion with containments in combination with at least one unformed portion and region between the said portions that is adapted for fold / to facilitate and a single portion provided with containments facilitates effective use of the package for lower number of dosages yet providing self enclosing / re-closing capability that eliminates the need of additional carton / closure to encase / house the pack providing provision for holding portions of the package along with optional child resistant characteristics.
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claim
A single piece re-closable unit pack comprising
a first layered structure wherein one or plurality of containment(s) are
formed to contain product(s) wherein the said containment(s) up stand
from first surface of the said first layered structure thereby creating one or
plurality of corresponding opening/s on the second surface of the said first
layered structure,
a second layered structure affixed to the unformed region of the second
surface of the first layered structure
wherein portion of the second layered structure corresponding to the
opening of the containment(s) is ruptured to remove the product,
at least one portion comprising the containment(s) wherein the region
between the said portions is foldable;
optionally one or plurality of unformed portion/s;
engaging and corresponding receiving provision disposed on the said
portion/s such that the said portions are held together when folded.
A single piece re-closab!e unit pack as claimed in claim 1 comprising first layered structure in the form of a monc) or multi layered structure in which one or plurality of enclosed spaces Containment(s) are formed to contain the product(s) wherein the said containments) up stand from first surface of the said first layered structure defining one or plurality of corresponding opening/s in a second surface of the said first layered structure;
a second rupturable layered structure that encloses the said containment(s) wherein portion of the enclosing lamina corresponding / superimposed to the containment(s) portion is ruptured/ removed while removing the product wherein the said layered structure is affixed to the unformed portion of the second surface of the first layered structure to enclose the said openings to seal the products in the upstanding containments);
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an unformed portion / region that is disposed between the first and second
portion wherein the first portion comprises of cluster of containment(s)
wherein
the region between the said portions is adapted for fold such that the said
first and second portions are laid down / overlay on each other upon
folding;
an engaging provision in the form of a raised region / projection provided
in the vicinity of the said second portion wherein corresponding to the said
projection there is provided a receiving provision in the form of a recesses
on the first portion to removably receive the said projection.
3. A single piece re-closable unit pack as claimed in claim 2 wherein the first and second portions are provided with stiffners in the form of formed portion along the periphery of the said portions.
4. A single piece re-closable unit pack as claimed in claim 1 comprising of a first layered structure in which one or plurality of enclosed spaces containment(s) are formed to contain the product(s) wherein the said containment(s) up stand from first surface of the said first layered structure defining one or plurality of corresponding opening/s in a second surface of the said first layered structure;.
a second layered structure that encloses the said containment wherein portion of the enclosing layered structure corresponding / superimposed to the containment portion is ruptured/ removed while removing the product wherein the said second layered structure is affixed to the unformed portion of the second surface of the first layered structure to enclose the said openings to seal the products in the upstanding containment(s);
an unformed portion / region that is disposed between the first, second and the third portion wherein the first portion comprises of cluster of containment(s) of the formed cavities and the said second and third portions are unformed ;
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the region between the said three portions is adapted for fold/ to facilitate
fold such that the said portions are laid down / overlay on each other upon
folding;
an engaging provision provided in the form a raised regions / projections
disposed along the periphery of the said third portion wherein
corresponding to raised regions / projections there is provided a receiving
provision in the form of an opening to removably receive the said
projections on the first portion;
wherein the first and second portions are provided with stiffner provision
along the periphery
wherein
the unformed region between the said first and second portion is folded so
that the first portion overlays on the second portion to cover the
containments of the said first portion, the unformed region between the
said portions second and third portion is folded so as to overlay on the first
portion.
Date: 29/05/2009
Dr.Prabuddha Ganguli Agent on behalf of the Applicant
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