US4478242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finger-actuated push-pull slideable dispensing valve
Assignee: Liqui Box Corp
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Filing: 1983-08-25
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Granted: 1984-10-23
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Expires: 2003-08-25
Abstract
Abstract A dispensing valve assembly comprising a slideable valve sleeve with a radially-directed dispensing outlet movable from closed position axially within a guide portion to open position axially-outwardly of the guide portion. Keying means between the guide portion and valve sleeve ensures that the dispensing outlet is normally directed downwardly but this keying means is flexible and can be overcome to permit twisting of the valve sleeve in the guide portion to break a seal connected therebetween. Finger-engaging means are also provided to facilitate closing.
Inventors
- 👤 Curtis J. Bond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:44
CPC Classifications
F; F16; F16K; F16K51/00; B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/26; B65D47/28; B65D47/283; F16K35/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7069; Y10T137/8811
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
185 words
A valve assembly comprising a guide portion and a valve sleeve closed at its outer end and open at its inner end telescoping slideably therein; said guide sleeve having a radially-directed dispensing outlet movable axially-outwardly beyond the guide portion to open dispensing position from closed sealed position within the guide portion, a tamper-proof seal strip connected between the guide portion and the valve sleeve to prevent outward movement of the valve sleeve without breaking the seal strip, and means for keying the valve sleeve and guide portion together to permit sliding movement of the valve sleeve but to normally prevent rotative movement of the valve sleeve in the guide portion without the application of sufficient torque force to the valve sleeve to overcome the keying means so that the valve sleeve will rotate and break the seal strip; said keying means comprising a longitudinally extending keying groove in the outer surface of the wall of the valve sleeve, and a radially extending flexible key carried by the guide portion and extending into the groove, said groove extending only partially radially through said valve sleeve wall.
Claim 2
Dependent Claim
185 words
A valve assembly comprising a guide portion and a valve sleeve closed at its outer end and open at its inner end telescoping slideably therein; said guide sleeve having a radially-directed dispensing outlet movable axially-outwardly beyond the guide portion to open dispensing position from closed sealed position within the guide portion, a tamper-proof seal strip connected between the guide portion and the valve sleeve to prevent outward movement of the valve sleeve without breaking the seal strip, and means for keying the valve sleeve and guide portion together to permit sliding movement of the valve sleeve but to normally prevent rotative movement of the valve sleeve in the guide portion without the application of sufficient torque force to the valve sleeve to overcome the keying means so that the valve sleeve will rotate and break the seal strip; said keying means comprising a longitudinally extending keying groove in the outer surface of the wall of the valve sleeve, and a radially extending flexible key carried by the guide portion and extending into the groove, said groove extending only partially radially through said valve sleeve wall.
Claim 3
Dependent Claim
26 words
A valve assembly according to claim 1 in which the keying groove extends longitudinally from the outlet in the valve sleeve to the open end thereof.
Claim 4
Dependent Claim
21 words
A valve assembly according to claim 2 in which the key extends longitudinally of the guide portion and is laterally flexible.
Claim 5
Dependent Claim
57 words
A valve assembly according to claim 3 in which the guide portion is an outer sleeve having an inner end and the flexible key is supported inwardly of the sleeve and an extension of the key formed on the inner surface of the sleeve, said valve sleeve having a stop engaging the inner end of the sleeve.
Claim 6
Dependent Claim
16 words
A valve assembly according to claim 4 in which the keying groove has sharp angular sides.
Claim 7
Dependent Claim
25 words
A valve assembly according to claim 5 in which the groove extends radially no more than two-thirds into the thickness of the valve sleeve wall.
Claim 8
Dependent Claim
30 words
A valve assembly according to claim 1 in which the guide portion includes a mounting cap adapted to fit on a container spout, and finger-engaging lugs on said cap portion.
Claim 9
Dependent Claim
26 words
A valve assembly according to claim 7 in which the guide portion also includes a sleeve with its axis at an angle to the mounting cap.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |