US3843006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety bottle cap
Assignee: Takeda Pharmaceutical Co Ltd
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Filing: 1972-12-18
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Granted: 1974-10-22
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Expires: 1992-12-18
Abstract
Abstract A safety bottle cap for closing the opening of a bottle which essentially comprises a screw cap with internal threads for screwing the cap detachably over the external threads of the bottle neck, a ratchet secured on the screw cap, and an outer cover completely covering the ratchet and the screw cap, and having internal toothed portions, which can always be engaged with the flexible ratchet teeth of the ratchet in the thread direction of the screw cap, and projections, which can be engaged with the holes of the ratchet when the outer cover is pressed downward against the raising force of a spring element provided between the ratchet and outer cover, whereby the safety bottle cap can be screwed freely on the external threads of the bottle neck by turning it in the thread direction and can be unscrewed only by turning it in the opposite direction while it is pressed down, and thus eliminates the dangers associated with bottles that can be easily opened only by unscrewing action.
Inventors
- 👤 H Naito
- 👤 K Nakabayashi
- 👤 T Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:48
CPC Classifications
B; B65; B65D; B65D50/00; B65D50/02; B65D50/04; B65D50/041
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
220 words
A safety bottle cap comprising a screw cap having a tubular body topped by a roof and threaded internally with threads for engaging detachably with the external threads of the bottle neck of a bottle, a ratchet secured on the roof of the screw cap, and having flexible ratchet teeth in its outer periphery engaging in the threading direction of the screw cap, and fitting portions in its upper surface, and an outer cover which covers the screw cap with the ratchet, and has at its bottom an inwardly turned rim which latches onto the bottom of the screw cap, toothed portions at the upper part of the inside thereof which engage the ratchet teeth of the ratchet in the threading direction of the screw cap, and on lower surface on the roof of which are provided fitting portions and a flexible spacer element or elements extending downward in sliding contact with the upper surface of the ratchet during its rotation, the outer cover being normally held raised by the elastic force of the spacer elements so as to keep the fitting portions of the outer cover disengaged from the fitting portions of the ratchet, but, the former being able to engage with the latter when the outer cover is pressed down against the elastic force of the spacer elements.
Claim 2
Dependent Claim
220 words
A safety bottle cap comprising a screw cap having a tubular body topped by a roof and threaded internally with threads for engaging detachably with the external threads of the bottle neck of a bottle, a ratchet secured on the roof of the screw cap, and having flexible ratchet teeth in its outer periphery engaging in the threading direction of the screw cap, and fitting portions in its upper surface, and an outer cover which covers the screw cap with the ratchet, and has at its bottom an inwardly turned rim which latches onto the bottom of the screw cap, toothed portions at the upper part of the inside thereof which engage the ratchet teeth of the ratchet in the threading direction of the screw cap, and on lower surface on the roof of which are provided fitting portions and a flexible spacer element or elements extending downward in sliding contact with the upper surface of the ratchet during its rotation, the outer cover being normally held raised by the elastic force of the spacer elements so as to keep the fitting portions of the outer cover disengaged from the fitting portions of the ratchet, but, the former being able to engage with the latter when the outer cover is pressed down against the elastic force of the spacer elements.
Claim 3
Dependent Claim
42 words
A safety bottle cap as defined in claim 1, wherein said screw cap has protrusions or holes in its upper surface, and said ratchet has holes or protrusions in its lower surface engaging with the protrusions or holes of the screw cap.
Claim 4
Dependent Claim
47 words
A safety bottle cap as defined in claim 1, wherein said spacer elements comprise flexible, petal-shaped tongue portions formed at and extending downward from the lower surface of the outer cover, by the elastic force of which the outer cover is normally held raised above the ratchet.
Claim 5
Dependent Claim
41 words
A safety bottle cap as defined in claim 1, wherein said spacer element comprises a coil spring inserted between the outer cover and the ratchet, by the elastic force of which the outer cover is normally held raised above the ratchet.
Claim 6
Dependent Claim
62 words
A safety bottle cap as defined in claim 1, wherein said fitting portions of the outer cover comprise opening catch portions formed at and extending downward from its lower surface, and said fitting portions of the ratchet comprise opening catch holes formed in its upper surface, the former being brought into engagement with the latter when the outer cover is pressed down.
Claim 7
Dependent Claim
72 words
A safety bottle cap as defined in claim 1, wherein said fitting portions of the outer cover comprise ratchet projections extending downwards from the lower surface of the outer cover, and said fitting portions of the ratchet comprise ratchet protrusions projecting upward from its upper surface, the former being brought into engagement with the latter when the outer cover is pressed down and rotated in the unthreading direction of the screw cap.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |