Dispensing valve
Patent 6279783 Issued on August 28, 2001. Estimated Expiration Date: 
July 1, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 1, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1206661 1825553 1989714 2175052 2758755 3063601 3342379 3490488 Disposable dispensing-proportioning container for semi-fluid pasty products in general, and cosmetics products in particular Automatic dispenser cap InventorsAssigneeApplicationNo. 886567 filed on 07/01/1997US Classes:222/185.1, For bottom discharge dispenser supported on horizontal surface220/89.1, Pressure relief means220/203.19, Specified valve structure provides a diverse function (e.g., leakage preventing, lock releasing)222/212, With flow controllers or closures222/490, SLITTED RESILIENT DIAPHRAGM OR NIPPLE222/494Spring form, resilient or compressible flow controller or closureExaminersPrimary: Kaufman, Joseph A.Attorney, Agent or FirmForeign Patent References
International ClassB67D 005/06AbstractA dispensing package is provided for fluid products such as liquid soaps, shampoos and conditioners, household detergents, cleaners, polishes, moisturizing creams, and the like, and includes a container with a self-sealing dispensing valve mounted therein. The valve includes a marginal flange, a valve head with a discharge orifice therein, and a connector sleeve having one end connected with the valve flange and the opposite end connected with the valve head adjacent a marginal edge thereof. The connector sleeve has a resiliently flexible construction, such that when pressure within the container raises above a predetermined amount, the valve head shifts outwardly in a manner which causes the connector sleeve to double over and extend rollingly.Field of SearchSuspension supportedFor bottom discharge dispenser supported on horizontal surface RESILIENT WALL With flow controllers or closures Nonmetallic SLITTED RESILIENT DIAPHRAGM OR NIPPLE OUTLET ELEMENT OPERATED BY PRESSURE OF CONTENTS Axially slidable tube, sleeve, or apertured cap Axial discharge Spring form, resilient or compressible flow controller or closure Reciprocable, nonpivoted With biasing means Pressure relief means | |
