Dispensing – Collapsible wall-type container – Nonmetallic
Patent
1998-03-17
1999-12-21
Shaver, Kevin P.
Dispensing
Collapsible wall-type container
Nonmetallic
222 92, 2225416, B65D 3508, B65D 4710
Patent
active
06003730&
DESCRIPTION:
BRIEF SUMMARY
SUMMARY OF THE INVENTION
According to one aspect of the present invention there is provided a hand holdable manually dispensing mastic container formed of a flexible sheet material and having a generally elongate shape which diverges from a dispensing edge to a widest dimension and then converges to an opposing end.
Prior art mastic containers made from a flexible sheet material are of a form which requires a special apparatus for dispensing. With the present invention, the mastic container has a size such that it is hand holdable and allows comfortable manual dispensing. The ability to hold the container and manually dispense therefrom derives from the container having the defined shape. With this shape, the container sits firmly and snugly in one hand in a manner that enables smooth and well controlled dispensing of the contents by simple pressure applied thereto. Thus, the other hand is left free to control the spatula or mixing board thereby enabling efficient production of the mastic and hardener mixture. Since the mixture is ready quickly, more time is available before hardening occurs compared with the situation where the mixing step take a long time. Moreover, due to the widest dimension, the pressure from the contents can be focused on the dispensing edge to give good dispensing control even when the container is partially empty. In addition, the filled container is balanced during dispensing so that it does not easily fall from the hand.
In one embodiment, the container volume between the opposing end and the widest dimension is greater than the container volume between the dispensing edge and the widest dimension.
Thus, the higher weight volume is disposed towards the body reducing the leverage effect resulting from the weight of the mastic in the container. In addition, the dispensing control is maintained even when a significant proportion of the container contents have been dispensed.
In another embodiment, the container volume between the opposing end and the widest dimension is smaller than the container volume between the dispensing edge and the widest dimension.
Thus, as the mastic is squeezed out, the centre of gravity remains in the region of the palm of the hand thus allowing continued easy manipulation during dispensing.
In still another embodiment, the container volume between the opposing end and the widest dimension is substantially the same as the container volume between the dispensing edge and the widest dimension.
In a preferred embodiment, the length of the container is between 200 mm and 300 mm.
If the length is less than 200 mm, the volume of the container reduces to a point where it limits its application and if the length is greater than 300 mm, the container is unwieldy rendering it effectively no longer easily hand holdable.
Conveniently, the length of the container is between 250 35 mm and 280 mm.
This has been found to be an ideal length for dispensing control from an average sized hand.
In another preferred embodiment, said widest dimension is between 100 mm and 200 mm.
If the widest dimension is less than 100 mm, the volume of the container reduces to a point where it limits its application and if the widest dimension is greater than 200 mm, it exceeds the normal span of the hands which makes the container unwieldy rendering it effectively no longer easily hand holdable.
Conveniently, said widest dimension is between 130 mm and 150 mm.
This has been found to be an ideal dimension for dispensing control from an average sized hand.
Preferably, the container has an average width which exceeds 60 mm.
In a particularly convenient embodiment, the container volume between the opposing end and the widest dimension and the container volume between the dispensing edge and the widest dimension are both generally trapezoidal with their parallel sides parallel to the dispensing edge.
By using a trapezoidal volume, it has been found that the container is simple and hence cost effective to make, with little waste of the sheet material, whilst giving a good feel and balance to the
REFERENCES:
patent: 4163509 (1979-08-01), Amneus
patent: 4795062 (1989-01-01), Bedwell et al.
David Bernard Jacques
David Colin Michael
Quinalty Keats
Shaver Kevin P.
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