US3171493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire protection devices for christmas trees
Assignee: Individual
•
Filing: 1962-12-31
•
Granted: 1965-03-02
•
Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Brian W Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:38
CPC Classifications
A; A62; A62C; A62C35/00; A62C35/02; A62C35/10; A47; A47G; A47G33/00; A47G33/04; A47G33/08; A47G33/0872; A47G2033/089
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A FIRE EXTINGUISHING DEVICE FOR MOUNTING UPON A CHRISTMAS TREE AND COMPRISING A HEAT RELEASABLE SPRINKLER HEAD CONTAINED WITHIN AND SUPPORTING A SUBSTANTIALLY HOLLOW OPEN BOTTOM ORNAMENT, MEANS FOR ATTACHING THE SPRINKLER HEAD AND ORNAMENT TO THE APEX PORTION OF A TREE, A FLASK CONTAINING FIRE EXTINGUISHING LIQUID UNDER GAS PRESSURE, THE BOTTOM PORTION OF THE FLASK BEING CONNECTED TO THE SPRINKLER HEAD TO FEED LIQUID THERETO, AN AUXILIARY CARTRIDGE CONTAINING GAS UNDER PRESSURE AND CONNECTED TO THE TOP PORTION OF THE FLASK TO FEED GAS THEREINTO, AND A VALVE NORMALLY RESTRICTING PASSAGE OF GAS FROM THE CARTRIDGE TO THE FLAST UNDER PRESSURE OF A RETAINING SPRING IN COMBINATION WITH THE GAS PRESSURE IN THE FLASK, THE PRESSURE OF THE RETAINING SPRING BEING SO GRADUATED THAT UPON RELEASE OF THE SPRINKLER HEAD WITH CONSEQUENT REDUCTION OF GAS PRESSURE IN THE FLASK THE SPRING PERMITS OPENING OF THE VALVE AND ENTRANCE OF GAS FROM THE CARTRIDGE INTO THE FLASK.
Claim 2
Dependent Claim
158 words
A FIRE EXTINGUISHING DEVICE FOR MOUNTING UPON A CHRISTMAS TREE AND COMPRISING A HEAT RELEASABLE SPRINKLER HEAD CONTAINED WITHIN AND SUPPORTING A SUBSTANTIALLY HOLLOW OPEN BOTTOM ORNAMENT, MEANS FOR ATTACHING THE SPRINKLER HEAD AND ORNAMENT TO THE APEX PORTION OF A TREE, A FLASK CONTAINING FIRE EXTINGUISHING LIQUID UNDER GAS PRESSURE, THE BOTTOM PORTION OF THE FLASK BEING CONNECTED TO THE SPRINKLER HEAD TO FEED LIQUID THERETO, AN AUXILIARY CARTRIDGE CONTAINING GAS UNDER PRESSURE AND CONNECTED TO THE TOP PORTION OF THE FLASK TO FEED GAS THEREINTO, AND A VALVE NORMALLY RESTRICTING PASSAGE OF GAS FROM THE CARTRIDGE TO THE FLAST UNDER PRESSURE OF A RETAINING SPRING IN COMBINATION WITH THE GAS PRESSURE IN THE FLASK, THE PRESSURE OF THE RETAINING SPRING BEING SO GRADUATED THAT UPON RELEASE OF THE SPRINKLER HEAD WITH CONSEQUENT REDUCTION OF GAS PRESSURE IN THE FLASK THE SPRING PERMITS OPENING OF THE VALVE AND ENTRANCE OF GAS FROM THE CARTRIDGE INTO THE FLASK.
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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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |