Patent US3738537A successfully refreshed from Google Patents.
US3738537A
Expired / Lapsed
US
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Safety closure for aerosol can
Assignee: Silgan Plastic Food Containers Corp
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Filing: 1971-12-07
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Granted: 1973-06-12
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Expires: 1991-12-07
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
2026-10-30 21:27
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)
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US3347423A
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US3531026A
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US3608785A
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US3666338A
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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 |