Patent US4442949A successfully refreshed from Google Patents.
US4442949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tear open closure assembly
Assignee: American Flange and Manufacturing Co Inc
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Filing: 1983-03-21
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Granted: 1984-04-17
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Expires: 2003-03-21
Abstract
Abstract A nestable spout assembly for dispensing liquid products from cans and pails. A molded plastic spout in extended position has an enlarged flexible lower wall portion joined to a relatively rigid externally threaded upper wall portion. A peripheral sealing channel is disposed about the base of the lower wall portion for securing to a container wall opening neck by means of an overlying metal crimping ring. A tear out diaphragm is recessed within the upper end of the spout and is provided with an integrally molded ring pull for removal. A circumferentially enlarged plastic reclosing cap threadedly engages the spout upper wall portion and also interlockingly engages the metal crimping ring with the spout in nested position to close off the annular spout void against contamination. An axially extending support member is disposed within the space between the upper surface of the diaphragm and the under surface of the reclosing cap.
Inventors
- 👤 Davis B. Dwinell
- 👤 Jeremiah J. Laurizio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:09
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/06; B65D47/12; B65D47/122; B65D47/061; B65D47/063; B65D47/10; B65D47/103
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
79 words
In container closure construction, a molded plastic closure having container wall engaging means, a fluid passage closed off by an integrally molded sealing diaphragm, said diaphragm including a weakened tearing zone, a pull member integrally connected to said diaphragm, a closure cap overlying said fluid passage so as to create a void within which the pull member is housed and support means within said void adapted to restrain said diaphragm against excessive deflection in response to instantaneous pressure surge.
Claim 2
Dependent Claim
79 words
In container closure construction, a molded plastic closure having container wall engaging means, a fluid passage closed off by an integrally molded sealing diaphragm, said diaphragm including a weakened tearing zone, a pull member integrally connected to said diaphragm, a closure cap overlying said fluid passage so as to create a void within which the pull member is housed and support means within said void adapted to restrain said diaphragm against excessive deflection in response to instantaneous pressure surge.
Claim 3
Dependent Claim
19 words
Container closure construction as in claim 1, and including a metal securing ring overlying said container wall engaging means.
Claim 4
Dependent Claim
18 words
Container closure construction in claim 1, wherein said support means is spaced radially inwardly from said tearing zone.
Claim 5
Dependent Claim
19 words
Container closure construction as in claim 1, wherein said pull member has a ring configuration surrounding said support means.
Claim 6
Dependent Claim
21 words
Container closure construction as in claim 1, wherein said closure includes a nestable pouring spout with said closure cap secured thereto.
Claim 7
Dependent Claim
16 words
Container closure construction as in claim 2, wherein said closure cap engages said metal securing ring.
Claim 8
Dependent Claim
18 words
Container closure construction as in claim 1, wherein said support means is integrally connected to said sealing diaphragm.
Claim 9
Dependent Claim
16 words
Container closure construction as in claim 1, wherein said support means is a hollow curved wall.
Claim 10
Dependent Claim
18 words
Container closure construction as in claim 1, wherein said support means is integrally connected to said closure cap.
Claim 11
Dependent Claim
113 words
In container closure construction, a molded plastic closure having circumferentially disposed container wall engaging means, a central fluid passage closed off by a recessed integrally molded sealing diaphragm, a weakened tearing zone of reduced cross sectional thickness surrounding said diaphragm, a pull member integrally connected to said diaphragm adjacent said tearing zone and substantially overlying said diaphragm, a closure cap forming part of said closure construction and overlying said fluid passage in spaced relation to said diaphragm so as to create a cylindrical void within which said pull member is housed and axially extending support means within said void adapted to restrain said diaphragm against excessive deflection in response to instantaneous pressure surge.
Claim 12
Dependent Claim
113 words
In container closure construction, a molded plastic closure having circumferentially disposed container wall engaging means, a central fluid passage closed off by a recessed integrally molded sealing diaphragm, a weakened tearing zone of reduced cross sectional thickness surrounding said diaphragm, a pull member integrally connected to said diaphragm adjacent said tearing zone and substantially overlying said diaphragm, a closure cap forming part of said closure construction and overlying said fluid passage in spaced relation to said diaphragm so as to create a cylindrical void within which said pull member is housed and axially extending support means within said void adapted to restrain said diaphragm against excessive deflection in response to instantaneous pressure surge.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-04-17 | 1987-10-17 | 1988-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-17 | 1991-10-17 | 1992-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-17 | 1995-10-17 | 1996-04-17 | $7700.00 | Window Closed / Lapsed |