US3613264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave cell
Assignee: MOTIONETICS Inc
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Filing: 1969-10-23
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Granted: 1971-10-19
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Expires: 1989-10-23
Abstract
Abstract A WAVE CELL, IN WHICH PLURAL NON-MISCIBLE LIQUIDS DISPLAY FLUIDIC WAVE MOTION, EMPLOYS LIGHT MINERAL OIL AS A PRINCIPAL CONSTITUENT OF A FIRST LIQUID AND EMPLOYS WATER AS A PRINCIPAL CONSTITUENT OF A SECOND LIQUID, WITH A MINOR PORTION OF A FLUORINATED HYDROCARBON IN THE FIRST LIQUID AND PREFERABLY WITH A MINOR PORTION OF ALCOHOL IN THE SECOND LIQUID. THE OPTIONAL ADDITION OF A LOW-FOAMING SURFACTANT ENHANCES THE DISPLAYED WAVE MOTIONS. AN OPTICALLY TRANSPARENT ACRYLIC RESIN TUBE CLOSED WITH ACRYLIC RESIN END CAPS FORMS THE WAVE CELL CHAMBER, AND AN AIR TRAP AT ONE END OF THE TUBE ACCOMODATES THERMAL EXPANSION AND CONTRACTION WITHOUT UNDULY STRESSING THE VESSEL.
Inventors
- 👤 Joseph A Vitka
- 👤 James D Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:57
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/06; G09B23/08; G09B23/12
Claims Analysis
Total Claims: 0
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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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |