US3221932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflating device for flotation gear
Assignee: Individual
•
Filing: 1962-04-04
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Granted: 1965-12-07
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Expires: 1982-04-04
Abstract
No abstract record available.
Inventors
- 👤 Gustaf A Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:08
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/24; Y; Y10; Y10T; Y10T137/00; Y10T137/1624
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
AN INFLATING DEVICE FOR LIFE PRESERVES AND OTHER INFLATABLE APPARATUS COMPRISING A CYLINDER PROVIDED WITH A PORT IN ITS SIDE WALL, A CARTRIDGE CONTAINING INFLATING FLUID UNDER PRESSURE HAVING ONE END THEREOF EXTENDING INTO ONE END OF SAID CYLINDER, MEANS IN SAID CYLINDER FOR PUNCTURING SAID CARTRIDGE TO RELEASE SAID FLUID INTO SAID CYLINDER, A PISTON MOVABLE IN SAID CYLINDER TO CLOSE AND OPEN SAID PORT, AND WATER SOLUBLE PELLET MEANS IN SAID CYLINDER FOR NORMALLY MAINTAINING SAID PISTON IN A PORT CLOSING POSITION, SAID CYLINDER BEING PROVIDED WITH PASSAGEWAYS TO PROVIDE FOR THE ENTRY OF WATER TO DISSOLVE SAID PELLET MEANS AND PERMIT SAID PISTON TO BE MOVED IN SAID CYLINDER BY THE PRESSURE OF SAID FLUID TO A PORT OPENING POSITION.
Claim 2
Dependent Claim
123 words
AN INFLATING DEVICE FOR LIFE PRESERVES AND OTHER INFLATABLE APPARATUS COMPRISING A CYLINDER PROVIDED WITH A PORT IN ITS SIDE WALL, A CARTRIDGE CONTAINING INFLATING FLUID UNDER PRESSURE HAVING ONE END THEREOF EXTENDING INTO ONE END OF SAID CYLINDER, MEANS IN SAID CYLINDER FOR PUNCTURING SAID CARTRIDGE TO RELEASE SAID FLUID INTO SAID CYLINDER, A PISTON MOVABLE IN SAID CYLINDER TO CLOSE AND OPEN SAID PORT, AND WATER SOLUBLE PELLET MEANS IN SAID CYLINDER FOR NORMALLY MAINTAINING SAID PISTON IN A PORT CLOSING POSITION, SAID CYLINDER BEING PROVIDED WITH PASSAGEWAYS TO PROVIDE FOR THE ENTRY OF WATER TO DISSOLVE SAID PELLET MEANS AND PERMIT SAID PISTON TO BE MOVED IN SAID CYLINDER BY THE PRESSURE OF SAID FLUID TO A PORT OPENING POSITION.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |