Disposable fluid dispenser
First Claim
1. A dispenser for viscous liquids for personal use comprising;
- a hollow container having an opening at the forward end and means thereon to permit introduction of a supply of viscous liquid to the interior of the container, valve means adapted to be mounted on the container normally closing the opening in the container and adapted to be opened to release liquid, the valve means including a valve housing which is hollow and open at both ends, the housing adapted to be mounted in the opening in the container so that the passageway through the housing provides communication between the interior of the container and the exterior thereof, a valve seat formed in the housing, a valve piston movably mounted in the housing and shiftable between a position in engagement with the valve seat to close the opening at the forward end of the container and a position removed from the valve seat to permit the viscous liquid to flow from the container through the opening therein, spring means in the form of a plurality of substantially uniformly spaced stems extending rearwardly from the piston, spring retention means to engage with the stems and normally bias the spring stems to maintain the piston in engagement with the valve seat, and the piston in the seated position having an exposed portion extending beyond the housing whereby a predetermined application of force to the exposed portion will unseat the piston by applying a further bias to the spring stems and thereby permit the viscous liquid to flow from the container and, thereafter, release of the predetermined application of force will permit the piston to again seat and close the flow path from the container, and the spacing of the spring stems facilitating a uniform unseating of the piston and a consequent uniform flow of viscous liquid from the container.
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Accused Products
Abstract
A dispenser adapted for use in personal application of viscous liquid. The dispenser includes a hollow container for the liquid and valve structure on the container. The valve is automatically shiftable by actuation of an exterior portion thereof to bias a spring structure and permit flow of the viscous liquid to the person. The spring structure is designed so that a substantially uniform opening is provided to facilitate uniform dispensing of viscous liquid such as a lotion. For this purpose, the spring structure includes a plurality of spaced spring stems which act in concert to submit uniformly to pressure in opening of the valve and to substantially uniformly close the valve when the pressure is released. In another form, the dispenser is designed for application of flavoring to a product such as a cigarette and the valve actuator is positioned in relation to a guide so that a product end can be guided into engagement with the actuator to open the valve and permit flavoring contained within the dispenser container to be applied to the product.
9 Citations
10 Claims
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1. A dispenser for viscous liquids for personal use comprising;
- a hollow container having an opening at the forward end and means thereon to permit introduction of a supply of viscous liquid to the interior of the container, valve means adapted to be mounted on the container normally closing the opening in the container and adapted to be opened to release liquid, the valve means including a valve housing which is hollow and open at both ends, the housing adapted to be mounted in the opening in the container so that the passageway through the housing provides communication between the interior of the container and the exterior thereof, a valve seat formed in the housing, a valve piston movably mounted in the housing and shiftable between a position in engagement with the valve seat to close the opening at the forward end of the container and a position removed from the valve seat to permit the viscous liquid to flow from the container through the opening therein, spring means in the form of a plurality of substantially uniformly spaced stems extending rearwardly from the piston, spring retention means to engage with the stems and normally bias the spring stems to maintain the piston in engagement with the valve seat, and the piston in the seated position having an exposed portion extending beyond the housing whereby a predetermined application of force to the exposed portion will unseat the piston by applying a further bias to the spring stems and thereby permit the viscous liquid to flow from the container and, thereafter, release of the predetermined application of force will permit the piston to again seat and close the flow path from the container, and the spacing of the spring stems facilitating a uniform unseating of the piston and a consequent uniform flow of viscous liquid from the container.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
Specification