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US3738537A Expired / Lapsed US ⏱️ 0.0 years remaining

Safety closure for aerosol can

Assignee: Silgan Plastic Food Containers Corp
•
Filing: 1971-12-07
•
Granted: 1973-06-12
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Expires: 1991-12-07
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Abstract

Abstract A safety closure for an aerosol can having a top central valve and spray button. The closure comprises an inverted, cup-shaped actuator surrounding the valve stem and spray button. An inverted cup-shaped overcap encloses the actuator and the upper end of the can. The actuator and overcap have cooperating disengageable locking means which prevent the movement of the actuator to effect discharge of the contents of the aerosol can. The locking means are disengageable by depression thereof with the hand. The cap is so constructed that a small child''s hand cannot grip and disengage the locking means while an adult-sized hand can so disengage the locking means.

Inventors

  • 👤 P Gach

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 00:41
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/16; B65D83/20; B65D83/206; B65D83/22; B65D2215/00; B65D2215/02

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 185 words
A safety closure for an aerosol can having a top center valve and spray button, said closure comprising, in combination, an actuator adapted to fit over said spray button and an overcap adapted to be retained on the end of said can and to enclose all of said actuator except the central top portion thereof, said actuator and said overcap having cooperating disengageable locking means positioned on opposite sides of said overcap and disengageable by the hand of the user, said locking means comprising a pair of diametrically opposed resilient arms on said actuator, each of said arms having an outwardly protruding tab on its lower end, and a pair of slots in the wall of said overcap outwardly through which said tabs extend, each of said tabs having a lower element that is urged into engagement with the lower edge of the respective slot by the respective resilient arm for preventing downward movement of said actuator relative to said overcap, the span between the outer sides of said protruding tabs being greater than the span of a hand of a child of tender years.
Claim 2
Dependent Claim 185 words
A safety closure for an aerosol can having a top center valve and spray button, said closure comprising, in combination, an actuator adapted to fit over said spray button and an overcap adapted to be retained on the end of said can and to enclose all of said actuator except the central top portion thereof, said actuator and said overcap having cooperating disengageable locking means positioned on opposite sides of said overcap and disengageable by the hand of the user, said locking means comprising a pair of diametrically opposed resilient arms on said actuator, each of said arms having an outwardly protruding tab on its lower end, and a pair of slots in the wall of said overcap outwardly through which said tabs extend, each of said tabs having a lower element that is urged into engagement with the lower edge of the respective slot by the respective resilient arm for preventing downward movement of said actuator relative to said overcap, the span between the outer sides of said protruding tabs being greater than the span of a hand of a child of tender years.
Claim 3
Dependent Claim 41 words
A safety closure according to claim 1 in which the tabs protrude through the slots a distance such that inward movement of said tabs flexes the arm inwardly suFficiently to disengage the lower elements thereof from the edges of the slots.

References Cited (Backward Citations)

US3169672A Cited
US3323690A Cited
US3347423A Cited
US3531026A Cited
US3608785A Cited
US3666338A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-06-11 1976-12-11 1977-06-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-11 1980-12-11 1981-06-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-11 1984-12-11 1985-06-12 $7700.00 Window Closed / Lapsed

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