US Patent No: 4,925,068
Number of patents in Portfolio can not be more than 2000
Liquid dispenser
Stats
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May 15, 1990
Issued date -
Sep 13, 1988
filing date -
07/244,063
serial no -
Expired
status
Importance
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Abstract
A liquid dispenser for being affixed to the neck of a liquid-filled container or bottle comprises a cap having a spout and a vent, an inner core for insertion in a cylindrical inner cavity of the cap and a stopper assembly attached to the inner core. The cap is rotatable about the inner core and stopper assembly between an open and closed position. Dispensing channels and venting channels in the core and stopper assembly align with the spout and vent in the cap in the open position. The dispensing channels and venting channels are disconnected from the spout and vent in the closed position. Various provisions are made so that the dispenser will be leak-proof in storage and in use. A tamper-evident arrangement is included in a portion of the dispenser. Specific features are provided in the neck of a bottle upon which the dispenser is to be affixed in order to position and lock the dispenser in place.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM | 4 | 2009 | |
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| 4,181,245 Casette for use with an I.V. infusion controller | 56 | 1978 | |
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| 4,802,610 Pour spout | 28 | 1988 | |
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| 4,241,855 Flow controlling pouring spout | 25 | 1979 | |
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| 4,583,665 Combination container with membrane sealed finish and tamper-indicating dispensing closure | 25 | 1984 | |
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| 4,792,054 Tamper-evident closure for dispensers | 66 | 1987 | |
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| 4,193,524 Dispensing device with two-way flow characteristic and half twist closure | 10 | 1978 | |
| 4,191,315 Closure | 3 | 1978 | |