US3089792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cleansing spray tubes
Assignee: Individual
•
Filing: 1961-02-27
•
Granted: 1963-05-14
•
Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Karl A Skardal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:16
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A METHOD OF CLEANING SPRAY TUBES FROM IMPURITIES OCCURRING IN THE FLUSHING LIQUID, SUCH AS FIBERS AND THE LIKE THAT MAY CAUSE CLOGGING UP OF THE SPRAY HOLES, IN WHICH THE LIQUID ENTERS THROUGH AN INLET PROVIDED AT ONE END OF THE SPRAY TUBE AND FLOWS OUT THROUGH AN OUTLET PROVIDED AT THE OPPOSITE END OF THE TUBE, CHARACTERIZED IN THAT THE INLET IS CLOSED SIMULTANEOUSLY WITH THE OPENING OF THE OUTLET, A PRESSURE BELOW ATMOSPHERE BEING THAN CREATED IN THE SPRAY TUBE, WHEREBY AIR WILL BE SUCKED IN THROUGH THE SPRAY HOLES.
Claim 2
Independent Claim
93 words
A METHOD OF CLEANING SPRAY TUBES FROM IMPURITIES OCCURRING IN THE FLUSHING LIQUID, SUCH AS FIBERS AND THE LIKE THAT MAY CAUSE CLOGGING UP OF THE SPRAY HOLES, IN WHICH THE LIQUID ENTERS THROUGH AN INLET PROVIDED AT ONE END OF THE SPRAY TUBE AND FLOWS OUT THROUGH AN OUTLET PROVIDED AT THE OPPOSITE END OF THE TUBE, CHARACTERIZED IN THAT THE INLET IS CLOSED SIMULTANEOUSLY WITH THE OPENING OF THE OUTLET, A PRESSURE BELOW ATMOSPHERE BEING THAN CREATED IN THE SPRAY TUBE, WHEREBY AIR WILL BE SUCKED IN THROUGH THE SPRAY HOLES.
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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |