US4644256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System driven by solar energy for pumping liquids
Assignee: ICOTRON SA INDUSTRIA DE COMPONENTES ELECTRONICOS 94000 GRAVATAI BRAZIL A CORP OF BRAZIL
•
Filing: 1983-07-15
•
Granted: 1987-02-17
•
Expires: 2003-07-15
Abstract
Abstract A system converting solar energy into electric power for driving an electro-mechanical pump to pump liquid by processing electric power furnished by solar cells of variable level, which includes converting the solar energy into pulses of constant electric power, the pulses spaced from one another as a function of the level of solarization.
Inventors
- 👤 Paulo D. Farias
- 👤 Francisco A. F. Mazzei
- 👤 Ubirajara do E. Santo
- 👤 Paulo Werle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:09
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/66; G05F1/67; Y; Y10; Y10S; Y10S136/00; Y10S136/291; Y10S136/293; Y10S323/00; Y10S323/906
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
59 words
Process for converting solar energy into electric power for driving an electro-mechanical pump to pump liquid by processing electric power furnished by solar cell exposed to a variable level of solarization, which comprises converting the solar energy into succeeding pulses of constant electric power, the pulses being spaced from one another as a function of the level of solarization.
Claim 2
Dependent Claim
59 words
Process for converting solar energy into electric power for driving an electro-mechanical pump to pump liquid by processing electric power furnished by solar cell exposed to a variable level of solarization, which comprises converting the solar energy into succeeding pulses of constant electric power, the pulses being spaced from one another as a function of the level of solarization.
Claim 3
Dependent Claim
29 words
Process according to claim 1, which includes re-utilizing a counterelectromotive force resulting from interruption of each pulse at the end of its period for forming a next succeeding pulse.
Claim 4
Dependent Claim
92 words
System for performing a process of converting solar energy into electric power for driving an electro-mechanical pump to pump liquid, comprising a first condenser connected to and charge by solar cells to a given potential, two pairs of switch elements, a second condenser having a given polarity and a control circuit, by which, depending upon said given potential of said first condenser and said polarity of said second condenser, the second condenser is alternately connected in series with a coil of the electro-mechanical pump via a respective pair of said switch elements.
Claim 5
Dependent Claim
92 words
System for performing a process of converting solar energy into electric power for driving an electro-mechanical pump to pump liquid, comprising a first condenser connected to and charge by solar cells to a given potential, two pairs of switch elements, a second condenser having a given polarity and a control circuit, by which, depending upon said given potential of said first condenser and said polarity of said second condenser, the second condenser is alternately connected in series with a coil of the electro-mechanical pump via a respective pair of said switch elements.
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) | 1990-02-16 | 1990-08-18 | 1991-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-16 | 1994-08-18 | 1995-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-16 | 1998-08-18 | 1999-02-17 | $7700.00 | Window Closed / Lapsed |