US4577286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar energy-powered calculator or the like
Assignee: Sharp Corp
•
Filing: 1984-01-04
•
Granted: 1986-03-18
•
Expires: 2004-01-04
Abstract
Abstract Disclosed is a solar cell-powered calculator or the like which features an integrated unit comprising solar cells and a protective filter which provides easier handling and minimum damage to the solar cells during handling processes. Such a solar cell-powered appliance easily implements electrical connection either between the solar cells themselves or between solar cells and peripheral electronic parts merely by placing the cell-filter integrated unit inside the cabinet in a simple process. In addition, such an advantageous configuration makes it possible to replace the solar cells using an extremely simple process.
Inventors
- 👤 Yutaka Yoshimura
- 👤 Masahiro Hikami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:57
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/26; G06F1/263; H; H02; H02S; H02S10/00; H02S10/40; H10; H10F; H10F19/00; H10F19/80; H10F77/00; H10F77/40; H10F77/42; H10F77/484; H10F77/488; H10F77/93; H10F77/933; H10F77/935; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/52; Y10; Y10S; Y10S136/00; Y10S136/291
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
84 words
An electronic calculator containing a plurality of solar cells powering the internally provided electronic parts comprising; a removable integrated unit comprising said solar cells, a protective filter, and support means for securing said solar cells to the filter; a plurality of terminals present in said appliance for obtaining the power generated by said solar cells; and means for achieving electrical connections either between said solar cells or between said solar cells and said electronic parts upon installing said integrated unit into said electronic appliance.
Claim 2
Dependent Claim
84 words
An electronic calculator containing a plurality of solar cells powering the internally provided electronic parts comprising; a removable integrated unit comprising said solar cells, a protective filter, and support means for securing said solar cells to the filter; a plurality of terminals present in said appliance for obtaining the power generated by said solar cells; and means for achieving electrical connections either between said solar cells or between said solar cells and said electronic parts upon installing said integrated unit into said electronic appliance.
Claim 3
Dependent Claim
32 words
An electronic calculator as recited in claim 1: wherein said support means comprises molded securing means connected to ends of the filter for directly securing said protective filter to said solar cells.
Claim 4
Dependent Claim
25 words
An electronic calculator as recited in claim 2 wherein said support means further includes positioning grooves in said protective filter for securing said solar cells.
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) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |