US3820683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray can safety cap
Assignee: Individual
•
Filing: 1972-02-10
•
Granted: 1974-06-28
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Expires: 1992-02-10
Abstract
Abstract A cap for an aerosol spray can has an inner skirt which serves the dual functions of compound leaf spring to urge detents which engage the underside of the spray assembly collar inwardly and as a lever to disengage the detents for removal of the cap.
Inventors
- 👤 A Jasinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:45
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/40; Y; Y10; Y10S; Y10S220/00; Y10S220/915
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
227 words
A cap for a spray can having a top and a sprayer assembly including a horizontal collar having an under shoulder mounted centrally in said top, said cap being inverted cup-shaped having a generally flat top and cylindrical side wall and having an inner skirt extending downwardly from said cap top integrally therewith to a level just below that of the sprayer assembly collar when said cap is in closure position upon a spray can, said skirt being generally oval in cross section, detent catches extending inwardly from the bottom of said skirt at the locations of the extremities of the minor axis of said oval skirt, said skirt being resiliently flexible to act as a leaf spring normally urging said catches inwardly to locking position under the sprayer assembly collar of a spray can, said cylindrical side wall of said cap being resiliently flexible and the portions of the oval skirt located at the extremities of the major axis thereof being so arranged that inward flexing of said cap side wall at approximately the locations of said oval skirt major axis extended moves said portions of said skirt inwardly causing the portions of said skirt located at the extremities of the minor axis thereof to move outwardly to withdraw the catches from under the sprayer assembly collar and thus release said cap from the spray can.
Claim 2
Dependent Claim
227 words
A cap for a spray can having a top and a sprayer assembly including a horizontal collar having an under shoulder mounted centrally in said top, said cap being inverted cup-shaped having a generally flat top and cylindrical side wall and having an inner skirt extending downwardly from said cap top integrally therewith to a level just below that of the sprayer assembly collar when said cap is in closure position upon a spray can, said skirt being generally oval in cross section, detent catches extending inwardly from the bottom of said skirt at the locations of the extremities of the minor axis of said oval skirt, said skirt being resiliently flexible to act as a leaf spring normally urging said catches inwardly to locking position under the sprayer assembly collar of a spray can, said cylindrical side wall of said cap being resiliently flexible and the portions of the oval skirt located at the extremities of the major axis thereof being so arranged that inward flexing of said cap side wall at approximately the locations of said oval skirt major axis extended moves said portions of said skirt inwardly causing the portions of said skirt located at the extremities of the minor axis thereof to move outwardly to withdraw the catches from under the sprayer assembly collar and thus release said cap from the spray can.
Claim 3
Dependent Claim
49 words
A cap in accordance with claim 1 wherein the bottom surfaces of the detent catches are inwardly inclined to provide cam surfaces causing said catches to spread apart as said cap is pressed down toward closure position upon a spray can and said catches enGage the spray assembly collar.
Claim 4
Dependent Claim
21 words
A cap in accordance with claim 1 wherein the top surfaces of the detent catches are horizontal or slightly inwardly inclined.
Claim 5
Dependent Claim
37 words
A cap in accordance with claim 1 wherein the portions of the oval skirt located at the extremities of the major axis thereof are separate from but in close proximity to the side wall of said cap.
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) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |