US3863818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispensing closures with integral spout latches
Assignee: Silgan Dispensing Systems Slatersville LLC
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Filing: 1973-12-17
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Granted: 1975-02-04
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Expires: 1993-12-17
Abstract
Abstract A dispensing closure having a cap and a spout rotatably mounted on the cap can be formed so as to include at least one latch structure which is integral with the cap. The cap and the latch structure are manufactured from a resilient material such as polyethylene. The latch structure extends above the top of the cap and overlays a part of the spout so that only by moving and holding the latch structure is the spout released so that it can be rotated from a closed to an open position. The latch structure preferably includes an enlarged, lever type extension. Several of such latch structures are preferably used. Such a closure is considered to be of a relatively child resistant character.
Inventors
- 👤 Robert E Hazard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:53
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/30; B65D47/305
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
259 words
In a dispensing closure having a cap and a spout, said cap being adapted to be attached to a container and having an opening leading therethrough, said spout having a passage extending therethrough and being capable of being rotatably mounted on said cap so as to be capable of being rotated between a closed position in which said spout closes off said opening and an opened position in which said passage is aligned with said opening, the improvement which comprises: said cap having latch means formed integrally therewith, said cap and said latch means being formed of a resilient material, said latch means including a resilient wall means which extends from the top of said cap and a lever means and a latch surface means both of which are carried by the extremity of said wall means remote from the top of said cap, said latch surface means overlying a part of said spout when said spout is in said closed position so as to lock said spout against rotation from said closed position, said lever means being spaced from the top of said cap and said wall so as to be capable of being manually engaged so as to rotate said latch surface means to a sufficient extent so that said spout may be rotated to said opened position, said latch means being sufficiently resilient so that when said spout is rotated from said opened position to said closed position said latch surface means automatically engages said spout so as to hold said spout in said closed position.
Claim 2
Dependent Claim
259 words
In a dispensing closure having a cap and a spout, said cap being adapted to be attached to a container and having an opening leading therethrough, said spout having a passage extending therethrough and being capable of being rotatably mounted on said cap so as to be capable of being rotated between a closed position in which said spout closes off said opening and an opened position in which said passage is aligned with said opening, the improvement which comprises: said cap having latch means formed integrally therewith, said cap and said latch means being formed of a resilient material, said latch means including a resilient wall means which extends from the top of said cap and a lever means and a latch surface means both of which are carried by the extremity of said wall means remote from the top of said cap, said latch surface means overlying a part of said spout when said spout is in said closed position so as to lock said spout against rotation from said closed position, said lever means being spaced from the top of said cap and said wall so as to be capable of being manually engaged so as to rotate said latch surface means to a sufficient extent so that said spout may be rotated to said opened position, said latch means being sufficiently resilient so that when said spout is rotated from said opened position to said closed position said latch surface means automatically engages said spout so as to hold said spout in said closed position.
Claim 3
Dependent Claim
27 words
A dispensing closure as claimed in claim 1 wherein: there are two of said latch means, said latch means being located on opposite sides of said spout.
Claim 4
Dependent Claim
16 words
A dispensing closure as claimed in claim 1 wherein: there is one of said latch means.
Claim 5
Dependent Claim
125 words
A dispensing closure as claimed in claim 1 including: a wall extending in a U-shaped path along the sides of said spout and around an end of said spout when said spout is in said closed position, said wall being resilient and being formed integrally with said top. there is a single latch means, a portion of said wall constituting said resilient wall means of said single latch means, said lever means in said single latch means comprising a single lever, said latch surface means in said single latch means comprising a single latch surface, said lever and said latch surface being located on the portion of said wall extending around said one end of said spout when said spout is in said closed position.
Claim 6
Dependent Claim
55 words
A dispensing closure as claimed in claim 4 wherein: said one end of said spout has a notch formed therein, and said latch surface fits within said notch when said spout is in said closed position and resiliently bears against said one end of said spout when said spout is not in said closed position.
Claim 7
Dependent Claim
176 words
A dispensing closure as claimed in claim 1 including: a wall extending in a U-shaped path along the sides of said spout and around the end of said spout when said spout is in said closed position, said wall being resilient and being formed integrally with said top, there are two of said latch means, a portion of said wall on one side of said spout when said spout is in a closed position constituting said resilient wall means of one of said latch means, a portion of said wall on the other side of said spout when said spout is in said closed position constituting said resilient wall means of the other of said latch means, said lever means of each of said latch means comprises a single lever, said levers extending from opposite sides of said spout when said spout is in said closed position, said latch surface means of each of said latch means comprising a latch surface which overlays a portion of said spout when said spout is in said closed position.
Claim 8
Dependent Claim
54 words
A dispensing closure as claimed in claim 6 including: sloping surfaces formed on said wall above said latch surfaces for engagement by said spout when said spout is rotated to said closed position so as to distend said wall so that said spout may be rotated to a closed position beneath said latch surface.
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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |