Patent US3799427A successfully refreshed from Google Patents.
US3799427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Degassing valve for hermetically sealed flexible containers and a container provided with the valve
Assignee: Individual
•
Filing: 1973-03-05
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Granted: 1974-03-26
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Expires: 1993-03-05
Abstract
Abstract A unidirectional degassing valve for products in thermoweldable flexible containers, comprising a thermoplastic material moulded base member provided with at least one conduit; a resilient valve member normally closing said conduit and bearing on the base member through a viscous layer; and a cap connected with said base member, therewith defining a chamber wherein said resilient valve member is located, and provided with at least one exhaust aperture, through which said chamber communicates with the external atmosphere.
Inventors
- 👤 L Goglio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:31
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/22; B65D77/225; B65D51/00; B65D51/16; B65D51/1633; B65D51/1644; F; F16; F16K; F16K15/00; F16K15/14; F16K15/1402; F16K15/141; F16K15/148; F16K15/16; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888; Y10T137/789; Y10T137/7891; Y10T137/7892
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
82 words
A unidirectional degassing valve for products in thermoweldable flexible containers, characterized by comprising: a. a thermoplastic material moulded base member provided with at least one conduit; b. a resilient valve member normally closing said conduit and bearing on the base member through a viscous layer; and c. a cap connected with said base member, therewith defining a chamber wherein said resilient valve member is located, and provided with at least one exhaust aperture, through which said chamber communicates with the external atmosphere.
Claim 2
Dependent Claim
82 words
A unidirectional degassing valve for products in thermoweldable flexible containers, characterized by comprising: a. a thermoplastic material moulded base member provided with at least one conduit; b. a resilient valve member normally closing said conduit and bearing on the base member through a viscous layer; and c. a cap connected with said base member, therewith defining a chamber wherein said resilient valve member is located, and provided with at least one exhaust aperture, through which said chamber communicates with the external atmosphere.
Claim 3
Dependent Claim
17 words
A valve as claimed in claim 1, wherein said conduit has a transverse wall pervious to gases.
Claim 4
Dependent Claim
21 words
A valve as claimed in claim 1, wherein an inner conical lug of said cap presses on said resilient valve member.
Claim 5
Dependent Claim
18 words
A valve as claimed in claim 1, wherein said cap is removably snap connected with said base member.
Claim 6
Dependent Claim
16 words
A valve as claimed in claim 1, wherein said resilient valve member is a rubber disc.
Claim 7
Dependent Claim
15 words
A valve as claimed in claim 1, wherein said viscous layer is of silicone oil.
Claim 8
Dependent Claim
15 words
A valve as claimed in claim 1, wherein said cap is moulded of thermoplastic material.
Claim 9
Dependent Claim
87 words
A thermo-weldable flexible container provided with at least one degassing valve thermo-welded thereto, said valve comprising: a. a base member moulded of thermoplastic material and provided with at least one conduit; b. a resilient valve member normally closing said conduit and bearing on said base member through a viscous layer; and c. a cap connected with said base member, therewith defining a chamber wherein said resilient valve member is located, and provided with at least one exhaust aperture, through which said chamber communicates with the external atmosphere.
Claim 10
Dependent Claim
87 words
A thermo-weldable flexible container provided with at least one degassing valve thermo-welded thereto, said valve comprising: a. a base member moulded of thermoplastic material and provided with at least one conduit; b. a resilient valve member normally closing said conduit and bearing on said base member through a viscous layer; and c. a cap connected with said base member, therewith defining a chamber wherein said resilient valve member is located, and provided with at least one exhaust aperture, through which said chamber communicates with the external atmosphere.
Claim 11
Dependent Claim
21 words
A container as claimed in claim 8, wherein the conduit of said base member has a transverse wall pervious to gases.
Claim 12
Dependent Claim
21 words
A container as claimed in claim 8, wherein an inner conical lug of said cap presses on said resilient valve member.
Claim 13
Dependent Claim
17 words
A container as claimed in claim 8, wherein said cap is snap connected with said base member.
Claim 14
Dependent Claim
15 words
A container as claimed in claim 8, wherein said valve member is a rubber disc.
Claim 15
Dependent Claim
15 words
A container as claimed in claim 8, wherein said viscous layer is of silicone oil.
Claim 16
Dependent Claim
15 words
A container as claimed in claim 8, wherein said cap is moulded of thermoplastic material.
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |