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US3744654A Expired / Lapsed US ⏱️ 0.0 years remaining

Safety closure device

Assignee: Individual
•
Filing: 1971-08-02
•
Granted: 1973-07-10
•
Expires: 1991-08-02
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Abstract

Abstract A safety closure for a container of medicine, poison, or other material to be kept out of the reach of small children. The closure has two parts. The first part comprises a tight fitting plug which is frictionally forced into the container opening. The plug is provided with a narrow flange which overhangs the top edge of the container opening. This flange is provided with an outer thread. The second part of the closure comprises an outer container cap in the form of a cylindrical member open at both ends. The main opening is internally threaded to engage complementary threads on the neck of the container. The plug flange does not extend to the outer edge of the container opening so that the cap clears the plug to engage the neck. When the cap is removed by unscrewing, the plug still remains in place to thwart the child. To remove the plug, the cap is reversed, the other end having internal threads for engaging the flange. By engaging these threads and rotating the cap, the plug is pulled from the container. In replacing the cap, the plug is pushed into position and the outer cap is screwed into place. As the outer cap moves downwardly, it pushes the plug tightly back into the container neck.

Inventors

  • 👤 H Bromberg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 21:33
CPC Classifications
B; B65; B65D; B65D50/00; B65D50/02; B65D50/06; B65D50/067

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 110 words
A safety closure for a container having a dispensing neck with an outer thread comprising an annular plug adapted to fit tightly and frictionally into the container neck to close the dispensing opening, a closure cap adapted to fit over said plug and neck, said cap having a recess with internal threads adapted to mesh with the outer neck threads, and means on said cap for removing said plug from the dispensing neck opening, said plug having a narrow flange portion at its upper edge, said flange portion overhanging the container neck but having a smaller diameter than the container neck, the outer surface of said flange portion being threaded.
Claim 2
Dependent Claim 110 words
A safety closure for a container having a dispensing neck with an outer thread comprising an annular plug adapted to fit tightly and frictionally into the container neck to close the dispensing opening, a closure cap adapted to fit over said plug and neck, said cap having a recess with internal threads adapted to mesh with the outer neck threads, and means on said cap for removing said plug from the dispensing neck opening, said plug having a narrow flange portion at its upper edge, said flange portion overhanging the container neck but having a smaller diameter than the container neck, the outer surface of said flange portion being threaded.
Claim 3
Dependent Claim 34 words
A closure member as in claim 1, wherein said removing means includes a second recess in said cap opposite said first recess, said second recess having internal threads for engaging said plug flange threads.
Claim 4
Dependent Claim 30 words
A closure member as in claim 2, wherein said cap is provided with an axial opening therethrough of smaller diameter than said neck and plug, said opening communicating said recesses.
Claim 5
Dependent Claim 28 words
A closure member as in claim 2, wherein said recesses are separated by an integral intermediate shoulder portion, said shoulder portion limiting movement into either of said recesses.
Claim 6
Dependent Claim 23 words
A closure member as in claim 4, wherein said shoulder portion defines a central opening of smaller diameter than said neck and plug.
Claim 7
Dependent Claim 33 words
A closure member as in claim 5, wherein said shoulder portion engages the top of said plug to push said plug into said neck when said cap is threaded onto said neck threads.

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) 1976-07-09 1977-01-08 1977-07-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-07-09 1981-01-08 1981-07-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-07-09 1985-01-08 1985-07-10 $7700.00 Window Closed / Lapsed

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