US4022357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable pouring spout closure
Assignee: American Flange and Manufacturing Co Inc
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Filing: 1975-09-18
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Granted: 1977-05-10
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Expires: 1995-09-18
Abstract
Abstract A retractable pouring spout closure for dispensing liquid products from containers in a safe and controlled manner. The closure consists of a plastic nozzle with integrally molded captive cap for friction fit engagement within a container wall opening. A tearing diaphragm seals off the upper end of the nozzle and has a cylindrical wall depending from its lower surface within the confines of the nozzle throat. A retractable pouring spout has its upper end tightly surrounding the depending cylinderical wall in stored position so as to require breaking of the diaphragm seal prior to unplugging the spout.
Inventors
- 👤 Davis B. Dwinell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:56
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/06; B65D47/12; B65D47/14; B65D47/147; B65D47/061; B65D47/10; B65D47/103
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
140 words
A retractable pouring spout closure for dispensing liquid products from containers comprising an annular nozzle molded of synthetic plastic material, said nozzle defining an axial dispensing throat having a zone of reduced internal diameter, an integrally formed sealing diaphragm closing off said throat, a retractable pouring spout having a circumferential lip at its upper end, said upper end being housed within said nozzle throat in stored position with said circumferential lip radially spaced from said throat and forming an axial passage between said spout and said reduced diameter zone and means formed on the undersurface of said sealing diaphragm for closing off the uppermost end of said spout whereby initial dispensing from the container requires breaking of said diaphragm seal prior to opening said spout upper end by axial withdrawal of said closing means with said spout in stored position.
Claim 2
Dependent Claim
140 words
A retractable pouring spout closure for dispensing liquid products from containers comprising an annular nozzle molded of synthetic plastic material, said nozzle defining an axial dispensing throat having a zone of reduced internal diameter, an integrally formed sealing diaphragm closing off said throat, a retractable pouring spout having a circumferential lip at its upper end, said upper end being housed within said nozzle throat in stored position with said circumferential lip radially spaced from said throat and forming an axial passage between said spout and said reduced diameter zone and means formed on the undersurface of said sealing diaphragm for closing off the uppermost end of said spout whereby initial dispensing from the container requires breaking of said diaphragm seal prior to opening said spout upper end by axial withdrawal of said closing means with said spout in stored position.
Claim 3
Dependent Claim
32 words
A retractable pouring spout closure as in claim 1, said spout closing means comprising a depending, cylindrical wall for plugging the upper end of said spout by means of friction fit engagement.
Claim 4
Dependent Claim
27 words
A retractable pouring spout closure as in claim 1, including closure cap receiving means formed on said nozzle and a closure cap for engaging said receiving means.
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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |