US3794201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Securely closed containers
Assignee: CPI PLASTICS Inc
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Filing: 1971-02-25
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Granted: 1974-02-26
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Expires: 1991-02-25
Abstract
Abstract Containers are provided with ratchet locking mechanisms that prevent loosening of closures from vibration or otherwise but may be easily released when the closure is to be removed.
Inventors
- 👤 H Galer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:38
CPC Classifications
B; B65; B65D; B65D55/00; B65D55/02; B65D55/022
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
215 words
For a hollow container having a body and a closure, a. a pour opening in said body, b. a closure adapted to close said pour opening to retain fluid contents in said container, c. and locking means associated with said body and said closure for repeated, releasable, positive locking of said closure in fluid retaining position in said pour opening, 1. said locking means having a ratchet annularly disposed about said pour opening and carried by one member of said body and said closure, 2. at least one pawl carried by the other member of said body and said closure, operable to engage said ratchet to positively lock said closure to said body against disengagement when said closure is in fluid retaining relationship with said body, d. and means for causing relative longitudinal restraining engagement between said closure and said pour opening, said locking means and said longitudinal restraining engagement means being in conjunctive relationship so that said locking means is engageable for positive locking while said longitudinal restraining means is disengaged, and e. said pour opening and said closure being located adjacent to an edge of said body member and an elevated fluid engaging portion of said body member being adjacent to said closure and pour opening and cooperating to form a pouring surface.
Claim 2
Dependent Claim
215 words
For a hollow container having a body and a closure, a. a pour opening in said body, b. a closure adapted to close said pour opening to retain fluid contents in said container, c. and locking means associated with said body and said closure for repeated, releasable, positive locking of said closure in fluid retaining position in said pour opening, 1. said locking means having a ratchet annularly disposed about said pour opening and carried by one member of said body and said closure, 2. at least one pawl carried by the other member of said body and said closure, operable to engage said ratchet to positively lock said closure to said body against disengagement when said closure is in fluid retaining relationship with said body, d. and means for causing relative longitudinal restraining engagement between said closure and said pour opening, said locking means and said longitudinal restraining engagement means being in conjunctive relationship so that said locking means is engageable for positive locking while said longitudinal restraining means is disengaged, and e. said pour opening and said closure being located adjacent to an edge of said body member and an elevated fluid engaging portion of said body member being adjacent to said closure and pour opening and cooperating to form a pouring surface.
Claim 3
Dependent Claim
130 words
at least one pawl carried by the other member of said body and said closure, operable to engage said ratchet to positively lock said closure to said body against disengagement when said closure is in fluid retaining relationship with said body, d. and means for causing relative longitudinal restraining engagement between said closure and said pour opening, said locking means and said longitudinal restraining engagement means being in conjunctive relationship so that said locking means is engageable for positive locking while said longitudinal restraining means is disengaged, and e. said pour opening and said closure being located adjacent to an edge of said body member and an elevated fluid engaging portion of said body member being adjacent to said closure and pour opening and cooperating to form a pouring surface.
Claim 4
Dependent Claim
130 words
at least one pawl carried by the other member of said body and said closure, operable to engage said ratchet to positively lock said closure to said body against disengagement when said closure is in fluid retaining relationship with said body, d. and means for causing relative longitudinal restraining engagement between said closure and said pour opening, said locking means and said longitudinal restraining engagement means being in conjunctive relationship so that said locking means is engageable for positive locking while said longitudinal restraining means is disengaged, and e. said pour opening and said closure being located adjacent to an edge of said body member and an elevated fluid engaging portion of said body member being adjacent to said closure and pour opening and cooperating to form a pouring surface.
Claim 5
Dependent Claim
60 words
For a hollow container having a thermoplastic body and closure, a. a pour opening in said body, b. a closure adapted to close said pour opening to retain fluid contents in said container, c. and locking means associated with said body and said closure for repeated releasable positive locking of said closure in fluid retaining position in said pour opening,
Claim 6
Dependent Claim
60 words
For a hollow container having a thermoplastic body and closure, a. a pour opening in said body, b. a closure adapted to close said pour opening to retain fluid contents in said container, c. and locking means associated with said body and said closure for repeated releasable positive locking of said closure in fluid retaining position in said pour opening,
Claim 7
Dependent Claim
151 words
at least two pawls carried by said closure, operable to engage said ratchet to positively lock said closure to said body against disengagement when said closure is in fluid retaining relationship with said body, said pawls being hingedly attached to and extending outwardly from said closure and being disposed in the region of said closure adjacent to said body, d. and means for causing relative longitudinal restraining engagement between said closure and said pour opening, said locking means and said longitudinal restraining engagement means being in conjunctive relationship so that each pawl of said locking means is engageable for positive locking while said longitudinal restraining means is disengaged, and e. said pour opening and said closure being located adjacent to an edge of said body member and an elevated fluid engaging portion of said body member being adjacent to said closure and pour opening and cooperating to form a pouring surface.
Claim 8
Dependent Claim
151 words
at least two pawls carried by said closure, operable to engage said ratchet to positively lock said closure to said body against disengagement when said closure is in fluid retaining relationship with said body, said pawls being hingedly attached to and extending outwardly from said closure and being disposed in the region of said closure adjacent to said body, d. and means for causing relative longitudinal restraining engagement between said closure and said pour opening, said locking means and said longitudinal restraining engagement means being in conjunctive relationship so that each pawl of said locking means is engageable for positive locking while said longitudinal restraining means is disengaged, and e. said pour opening and said closure being located adjacent to an edge of said body member and an elevated fluid engaging portion of said body member being adjacent to said closure and pour opening and cooperating to form a pouring surface.
Claim 9
Dependent Claim
129 words
at least two pawls carried by said closure, said pawls being disposed in the region of said closure adjacent to said body and said pawls being hingedly attached to and extending outwardly from the surface of said closure, said pawls being operable to engage said ratchet to positively lock said closure to said body against disengagement when said closure is in fluid retaining relationship with said body, d. and means on said body in the form of an externally threaded spout about said pour opening for causing relative longitudinal restraining engagement between said closure and said pour opening, each pawl of said locking means being in conjunctive relationship with said longitudinal restraining engagement so that said locking means is engageable for positive locking while said longitudinal engagement is disengaged.
Claim 10
Dependent Claim
129 words
at least two pawls carried by said closure, said pawls being disposed in the region of said closure adjacent to said body and said pawls being hingedly attached to and extending outwardly from the surface of said closure, said pawls being operable to engage said ratchet to positively lock said closure to said body against disengagement when said closure is in fluid retaining relationship with said body, d. and means on said body in the form of an externally threaded spout about said pour opening for causing relative longitudinal restraining engagement between said closure and said pour opening, each pawl of said locking means being in conjunctive relationship with said longitudinal restraining engagement so that said locking means is engageable for positive locking while said longitudinal engagement is disengaged.
Claim 11
Dependent Claim
29 words
The container of claim 2 wherein said ratchet comprises a semi-circular segment disposed about said pour opening and which segment has its terminal portions adjacent to said pour surface.
Claim 12
Dependent Claim
23 words
The container of claim 2 wherein said container body is made of polyethylene and has a capacity of about 5 to 55 gallons.
Claim 13
Dependent Claim
23 words
The container of claim 2 wherein the closure and body contain an additional security means to permanently engage the closure with the body.
Claim 14
Dependent Claim
83 words
For a hollow container having a thermoplastic body and closure, a. a pouR opening in said body, b. a one-piece closure adapted to close said pour opening to retain fluid contents in said container, said closure being in the form of a cap with internal threads, and having pawls extending from the surface of said cap, c. and locking means associated with said body and said closure for repeated, releasable, positive locking of said closure in fluid retaining position in said pour opening,
Claim 15
Dependent Claim
83 words
For a hollow container having a thermoplastic body and closure, a. a pouR opening in said body, b. a one-piece closure adapted to close said pour opening to retain fluid contents in said container, said closure being in the form of a cap with internal threads, and having pawls extending from the surface of said cap, c. and locking means associated with said body and said closure for repeated, releasable, positive locking of said closure in fluid retaining position in said pour opening,
Claim 16
Dependent Claim
23 words
The container of claim 6 wherein said container body is made of polyethylene and has a capacity of about 5 to 55 gallons.
Claim 17
Dependent Claim
23 words
The container of claim 6 wherein said closure and body contain an additional security means to permanently engage the closure with the body.
Claim 18
Dependent Claim
21 words
The container of claim 6 wherein said pawls are spaced apart at least one half the length of a ratchet element.
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |