US3214974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote acoustical sensor
Assignee: Individual
•
Filing: 1963-12-18
•
Granted: 1965-11-02
•
Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 Altman Lawrence
- 👤 Gertz Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:47
CPC Classifications
G; G21; G21C; G21C17/00; G21C17/02; G21C17/035; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/296; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S367/00; Y10S367/908
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
APPARATUS FOR THE MEASUREING OF THE LEVEL OF A LIQUID WITHIN A VESSEL COMPRISING (A) GENERATOR MEANS LOCATED UNDERNEATH SAID VESSEL FOR PRODUCING A SOUND PULSE THROUGH THE WALL OF SAID VESSEL INTO SAID LIQUID IN AN UPWARD DIRECTION; AND (B) REFLECTOR MEANS PARTIALY IMMERSED IN SAID LIQUID HAVING STEPPED, FLAT SURFACES FACING SID GENERATOR MEANS TO REFLECT A SERIES OF SAPCED SOUND PULSES FROM THE SUBMERGED SURFACES, THE NUMBER OF REFLECTED SOUND PULSES THEREBY INDICATING THE LEVEL OF SAID LIQUID WITHIN SAID VESSEL; (C) SAID REFLECTOR MEANS CONSISTING OF A SHAFT HAVING SPIRALLY ARRANGED, WEDGE SHAPED STEPS TO FORM A COMPACT DEVICE OCCUPYING A MINIMUM OF SPACE WITHIN SAID VESSEL.
Claim 2
Dependent Claim
111 words
APPARATUS FOR THE MEASUREING OF THE LEVEL OF A LIQUID WITHIN A VESSEL COMPRISING (A) GENERATOR MEANS LOCATED UNDERNEATH SAID VESSEL FOR PRODUCING A SOUND PULSE THROUGH THE WALL OF SAID VESSEL INTO SAID LIQUID IN AN UPWARD DIRECTION; AND (B) REFLECTOR MEANS PARTIALY IMMERSED IN SAID LIQUID HAVING STEPPED, FLAT SURFACES FACING SID GENERATOR MEANS TO REFLECT A SERIES OF SAPCED SOUND PULSES FROM THE SUBMERGED SURFACES, THE NUMBER OF REFLECTED SOUND PULSES THEREBY INDICATING THE LEVEL OF SAID LIQUID WITHIN SAID VESSEL; (C) SAID REFLECTOR MEANS CONSISTING OF A SHAFT HAVING SPIRALLY ARRANGED, WEDGE SHAPED STEPS TO FORM A COMPACT DEVICE OCCUPYING A MINIMUM OF SPACE WITHIN SAID VESSEL.
References Cited (Backward Citations)
GB191415549A
Cited
US2753542A
Cited
FR1126419A
Cited
GB809681A
Cited
US2883861A
Cited
GB873801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |