US3604583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container and closure cap therefor
Assignee: LINKLETTER ENTERPRISES 765 BAKER ST COSTA MESA CA A CA LP
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Filing: 1969-08-11
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Granted: 1971-09-14
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Expires: 1989-08-11
Abstract
Abstract A container having an inwardly directed shoulder forming a lower radial surface, and a closure cap therefor wherein the closure caP is provided with a depending flange portion adapted to fit within the mouth of the container and having a radial projection forming an upper radial surface adapted to cooperate with the lower radial surface carried by the container to thereby lock the closure cap to the container. Means are provided for flexing the closure cap to move the radial projection carried thereby out of engagement with the radial surface of the container to thereby release the closure cap. In an additional embodiment, a second depending flange is provided on the closure cap to prevent the cap from becoming contaminated when removed from the container, and in another embodiment, additional means are provided for maintaining the depending flange and radial projection carried by the closure cap in engagement with the corresponding radial surface carried by the container.
Inventors
- 👤 Robert P Linkletter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:19
CPC Classifications
B; B65; B65D; B65D50/00; B65D50/02; B65D50/04; B65D50/045
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
206 words
In combination, a container having a rim defining an open mouth including an internal shoulder forming a downwardly facing radial surface adjacent said mouth, and a flexible safety closure cap therefor comprising: an annular cap section overlying said rim of said container and extending outwardly therebeyond; a first depending flange projecting below said annular cap section and proportioned to fit within said container mouth; an external shoulder extending outwardly from said first flange and forming an upwardly facing radial surface engaging said downwardly facing radial surface of said container thereby securing said closure cap to said container; a central cap section interconnected with the lower portion of said flange and below said external shoulder; and a second depending flange projecting downwardly from said annular cap section and having a diameter greater than the outer diameter of said container rim and extending therearound to restrict flexing of said closure cap whereby said closure cap can not be reMoved from said container by only applying an upward force to said annular cap section, but can be removed by simultaneously pressing said central cap section downwardly to flex said second flange outwardly and said first flange inwardly thereby moving said external shoulder out of engagement with said internal shoulder.
Claim 2
Dependent Claim
206 words
In combination, a container having a rim defining an open mouth including an internal shoulder forming a downwardly facing radial surface adjacent said mouth, and a flexible safety closure cap therefor comprising: an annular cap section overlying said rim of said container and extending outwardly therebeyond; a first depending flange projecting below said annular cap section and proportioned to fit within said container mouth; an external shoulder extending outwardly from said first flange and forming an upwardly facing radial surface engaging said downwardly facing radial surface of said container thereby securing said closure cap to said container; a central cap section interconnected with the lower portion of said flange and below said external shoulder; and a second depending flange projecting downwardly from said annular cap section and having a diameter greater than the outer diameter of said container rim and extending therearound to restrict flexing of said closure cap whereby said closure cap can not be reMoved from said container by only applying an upward force to said annular cap section, but can be removed by simultaneously pressing said central cap section downwardly to flex said second flange outwardly and said first flange inwardly thereby moving said external shoulder out of engagement with said internal shoulder.
Claim 3
Dependent Claim
17 words
The combination as in claim 1 wherein said second flange projects downwardly below said central cap section.
Claim 4
Dependent Claim
26 words
The combination as in claim 1 wherein a disc member having a downwardly directed vertical pin is secured to the center of said central cap section.
Claim 5
Dependent Claim
55 words
The combination as in claim 3 wherein the outer diameter of said disc member is less than the inner diameter of said first depending flange whereby upon depressing said disc member, said pin deflects said central cap section and said disc moves downwardly within said first depending flange to a point adjacent said external shoulder.
Claim 6
Dependent Claim
19 words
The combination as in claim 1 wherein said upwardly and downwardly facing radial surfaces are each continuous circumferential surfaces.
Claim 7
Dependent Claim
35 words
The combination as in claim 1 wherein the surface of said internal shoulder above said downwardly facing radial surface and the surface of said external shoulder below said upwardly facing radial surface are mutually chamfered.
Claim 8
Dependent Claim
55 words
The combination as in claim 1 wherein said closure cap includes a removable cylindrical member having an outer diameter substantially equal to the inner diameter of said first depending flange and adapted to engage therewith to prevent inward flexing of said depending flange thereby to positively prevent removal of said closure cap from said container.
Claim 9
Dependent Claim
35 words
The combination as in claim 7 wherein said cylindrical member includes at least one radial tab extending outwardly therefrom adapted to releasably engage the outer periphery of said annular cap section of said closure cap.
Claim 10
Dependent Claim
27 words
The combination as in claim 7 wherein the inner surface of said first depending flange and the outer surface of said cylindrical member have mutually engaging serrations.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |