US3285089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive mechanism for a shutter winding device
Assignee: NIHON BUNKA ROLLER SHUTTER COM
•
Filing: 1964-04-13
•
Granted: 1966-11-15
•
Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Tsugawa Keizo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:11
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/56; E06B9/68; E06B9/74; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A SHUTTER WINDING DEVICE COMPRISING, IN COMBINATION, A PAIR OF COAXIAL, AXIALLY SPACED, RELATIVELY LARGE AND SUBSTANTIALLY EQUAL DIAMETER DRUMS ARRANGED TO HAVE A CURTAIN WOUND THEREON AND UNWOUND THEREFROM AND HAVING A COMBINED AXIAL LENGTH LESS THAN THE WIDTH OF THE CERTAIN TO BE OPERATED THEREBY; SUPPORT BASE MEANS, INCLUDING BEARING MEANS ROTATABLY SUPPORTING EACH OF SAID DRUMS; A MOTOR MOUNTED WITHIN ONE OF SAID DRUMS ON THE ASSOCIATED BASE MEANS AND IN DRIVING CONNECTION WITH SAID ONE DRUM; COUPLING MEANS, EACH SECURED TO A RESPECTIVE DRUM FOR ROTATION THEREBY AND EXTENDING TOWARD THE OTHER DRUM; AND A RELATIVELY SMALL DIAMETER SHAFT CONNECTED AT OPPOSITE ENDS TO BOTH COUPLING MEANS TO INTERCONNECT SAID DRUMS FOR CONJOINT AND SYNCHRONIZED ROTATION, THE LENGTH OF SAID SHAFT BEING SELECTED IN CORRESPONDENCE WITH THE WIDTH OF CERTAIN TO BE SECURED TO SAID DRUMS.
Claim 2
Dependent Claim
140 words
A SHUTTER WINDING DEVICE COMPRISING, IN COMBINATION, A PAIR OF COAXIAL, AXIALLY SPACED, RELATIVELY LARGE AND SUBSTANTIALLY EQUAL DIAMETER DRUMS ARRANGED TO HAVE A CURTAIN WOUND THEREON AND UNWOUND THEREFROM AND HAVING A COMBINED AXIAL LENGTH LESS THAN THE WIDTH OF THE CERTAIN TO BE OPERATED THEREBY; SUPPORT BASE MEANS, INCLUDING BEARING MEANS ROTATABLY SUPPORTING EACH OF SAID DRUMS; A MOTOR MOUNTED WITHIN ONE OF SAID DRUMS ON THE ASSOCIATED BASE MEANS AND IN DRIVING CONNECTION WITH SAID ONE DRUM; COUPLING MEANS, EACH SECURED TO A RESPECTIVE DRUM FOR ROTATION THEREBY AND EXTENDING TOWARD THE OTHER DRUM; AND A RELATIVELY SMALL DIAMETER SHAFT CONNECTED AT OPPOSITE ENDS TO BOTH COUPLING MEANS TO INTERCONNECT SAID DRUMS FOR CONJOINT AND SYNCHRONIZED ROTATION, THE LENGTH OF SAID SHAFT BEING SELECTED IN CORRESPONDENCE WITH THE WIDTH OF CERTAIN TO BE SECURED TO SAID DRUMS.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |