US3074127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable shading device
Assignee: Individual
•
Filing: 1960-03-30
•
Granted: 1963-01-22
•
Expires: 1980-03-30
Abstract
No abstract record available.
Inventors
- 👤 Rollo G Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:41
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; Y; Y10; Y10S; Y10S160/00; Y10S160/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A DEVICE FOR CONTROLLING THE ADMISSION OF LIGHT, INCLUDING A PLURALITY OF LOUVERS OF SUBSTANTIAL LENGTH AND OF A WIDTH GREATER THAN THE SPACING THEREOF, SUPPORTING CABLES PASSING THROUGH SAID LOUVERS, SPACING ELEMENTS ON SAID CABLES FOR SPACING THE LOUVERS FROM EACH OTHER, LOOPS ON THE END OF THE CABLES, A PLURALITY OF PAIRS OF EYES ON TOP AND BOTTOM SUPPORTS FOR RECEIVING SAID LOOPS, A SPRING BETWEEN THE LOWER LOOPS AND SAID SUPPORTING EYES, PULL CABLES AT ONE EDGE OF SAID LOUVERS HAVING SAID SPACING MEANS THEREON BETWEEN THE LOUVERS, SPRINGS CONNECTING THE ENDS OF SAID PULL CABLES TO SAID BOTTOM EYES, PULLEYS ON SAID UPPER EYES THROUGH WHICH SAID PULL CABLES EXTEND, AND OPERATING MEANS FOR PULLING SAID PULL CABLES TO THEREBY TILT SAID LOUVERS ON SAID SUPPORTING CABLE.
Claim 2
Dependent Claim
132 words
IN A DEVICE FOR CONTROLLING THE ADMISSION OF LIGHT, INCLUDING A PLURALITY OF LOUVERS OF SUBSTANTIAL LENGTH AND OF A WIDTH GREATER THAN THE SPACING THEREOF, SUPPORTING CABLES PASSING THROUGH SAID LOUVERS, SPACING ELEMENTS ON SAID CABLES FOR SPACING THE LOUVERS FROM EACH OTHER, LOOPS ON THE END OF THE CABLES, A PLURALITY OF PAIRS OF EYES ON TOP AND BOTTOM SUPPORTS FOR RECEIVING SAID LOOPS, A SPRING BETWEEN THE LOWER LOOPS AND SAID SUPPORTING EYES, PULL CABLES AT ONE EDGE OF SAID LOUVERS HAVING SAID SPACING MEANS THEREON BETWEEN THE LOUVERS, SPRINGS CONNECTING THE ENDS OF SAID PULL CABLES TO SAID BOTTOM EYES, PULLEYS ON SAID UPPER EYES THROUGH WHICH SAID PULL CABLES EXTEND, AND OPERATING MEANS FOR PULLING SAID PULL CABLES TO THEREBY TILT SAID LOUVERS ON SAID SUPPORTING CABLE.
References Cited (Backward Citations)
US950746A
Cited
US1344561A
Cited
US1590886A
Cited
FR821005A
Cited
US2559058A
Cited
US2646741A
Cited
US2759573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |