Pressure-rupturable container seal having a fluid flow directing shield
First Claim
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1. A fluid dispenser, the dispenser including a flexible vessel for containing a fluid, the vessel including:
- A. a top wall and a bottom wall,B. means comprising a seal for concentrating in a region thereof forces resulting from pressure generated in the fluid by applying a force to the vessel, said seal sealing the top wall to the bottom wall; and
C. a shield for directing released fluid in a desired direction,said vessel being sufficiently strong that a weaker of the top wall or the bottom wall at the seal ruptures at the region of concentration in response to the applied force to form an opening through which the fluid is dispensed.
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Abstract
A flexible fluid dispenser includes a flexible fluid-containing vessel which has a seal which seals a top wall of the vessel to a bottom wall and is shaped to concentrate in a region thereof forces resulting from pressure generated by applying a force to the dispenser. The dispenser further includes a shield shaped to direct fluid released from the dispenser in a desired direction. When a sufficiently large force is applied to the dispenser, the weaker top or bottom wall of the vessel ruptures, or opens, at the concentration region of the seal. The released fluid is then directed by the shield in the desired direction.
114 Citations
11 Claims
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1. A fluid dispenser, the dispenser including a flexible vessel for containing a fluid, the vessel including:
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A. a top wall and a bottom wall, B. means comprising a seal for concentrating in a region thereof forces resulting from pressure generated in the fluid by applying a force to the vessel, said seal sealing the top wall to the bottom wall; and C. a shield for directing released fluid in a desired direction, said vessel being sufficiently strong that a weaker of the top wall or the bottom wall at the seal ruptures at the region of concentration in response to the applied force to form an opening through which the fluid is dispensed. - View Dependent Claims (2, 3)
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4. A fluid dispenser, the dispenser including a flexible vessel for containing a fluid, the vessel including
i. a top wall and a bottom wall, and ii. means comprising a seal for concentrating in a region thereof forces resulting from pressure generated in the fluid by applying a force to the vessel, said seal sealing the top wall to the bottom wall, said seal being formed ultra-sonically, and said vessel being sufficiently strong that a weaker of the top wall or the bottom wall at the seal ruptures at the region of concentration in response to the applied force to form an opening through which the fluid is dispensed.
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10. A fluid dispenser, the dispenser including a flexible vessel for containing a fluid, the vessel having a seal which is formed ultra-sonically sealing a top wall to a bottom wall, the seal being V-shaped to concentrate at the apex of the seal forces resulting from pressure generated in the fluid by applying a force to the vessel, said vessel being sufficiently strong that a weaker of the top wall or the bottom wall at the seal apex ruptures in response to the applied force to form an opening through which the fluid is dispensed.
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11. A fluid dispenser, the dispenser including a flexible vessel for containing a fluid, the vessel having a seal which is formed ultra-sonically sealing a top wall to a bottom wall, the seal being circular in shape with a periphery which is smaller than the diameter of the vessel, said seal concentrating at the seal forces resulting from pressure generated in the fluid by applying a force to the vessel, and being sufficiently strong that a weaker of the top wall or the bottom wall at the seal ruptures in response to the applied force to form an opening through which the fluid is dispensed.
Specification