Patent US3325931A successfully refreshed from Google Patents.
US3325931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating sign
Assignee: TEL A SIGN Inc
•
Filing: 1964-12-17
•
Granted: 1967-06-20
•
Expires: 1984-12-17
Abstract
No abstract record available.
Inventors
- 👤 Fred W Leuthesser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:40
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
233 words
ROTATOR MECHANISM FOR A REVOLVABLE SIGN FRAME AND INCLUDING A SLAVE PULLEY FAST ON A STATIONARY SHAFT THAT PROJECTS INTO SAID SIGN FRAME, A U-SHAPED SUPPORTING STRUCTURE WITHIN SAID SIGN FRAME HAVING OPPOSED ELONGATED SLOTS THEREIN, A DRIVE PULLEY COPLANAR WITH SAID SLAVE PULLEY AND JOURNALLED ON SAID SIGN FRAME TO ROTATE ABOUT AN AXIS PARALLEL TO SAID SHAFT, SAID DRIVE PULLEY BEING MOUNTED ON A BRACKET MEANS ADAPTED TO BE ADJUSTABLY SECURED TO SAID U-SHAPED SUPPORTING STRUCTURE THROUGH SAID OPPOSED ELONGATED SLOTS, A BELT ENGAGED ABOUT SAID PULLEYS, A MOTOR SUPPORTED ON SAID SIGN FRAME AND CONNECTED TO ROTATE SAID DRIVE PULLEY, THEREBY TO ROTATE SAID SIGN FRAME ABOUT SAID SLAVE PULLEY, WITH SAID BELT HAVING ONE REACH THEREOF UNDER TENSION AND THE OTHER REACH THEREOF FREE DURING SUCH ROTATION OF THE SIGN FRAME, A FRICTION IDLER PULLEY COPLANAR WITH SAID SLAVE AND DRIVE PULLEYS AND MOVABLY MOUNTED ON SAID U-SHAPED SUPPORTING STRUCTURE FOR ENGAGEMENT WITH SAID ONE REACH ONE OF THE BELT, AND RESILIENT MEANS BIASING SAID IDLER PULLEY INTO ENGAGEMENT WITH SAID BELT IN A DIRECTION NORMALLY TO DISTORTINGLY ELONGATE SAID ONE REACH AND MAINTAIN ROTATING DRIVE OF SAID SIGN, SAID RESILIENT MEANS BEING YIELDABLE IN RESPONSE TO ABNORMALLY HIGH BELT FORCES OCCASIONED BY BLOCKAGE OF ROTATION OF SAID SIGN TO ALLOW STRAIGHTENING OF SAID ONE REACH AND CONSEQUENT LOW FRICTION SLIPPAGE OF SAID BELT RELATIVE TO SAID DRIVE PULLEY.
Claim 2
Dependent Claim
233 words
ROTATOR MECHANISM FOR A REVOLVABLE SIGN FRAME AND INCLUDING A SLAVE PULLEY FAST ON A STATIONARY SHAFT THAT PROJECTS INTO SAID SIGN FRAME, A U-SHAPED SUPPORTING STRUCTURE WITHIN SAID SIGN FRAME HAVING OPPOSED ELONGATED SLOTS THEREIN, A DRIVE PULLEY COPLANAR WITH SAID SLAVE PULLEY AND JOURNALLED ON SAID SIGN FRAME TO ROTATE ABOUT AN AXIS PARALLEL TO SAID SHAFT, SAID DRIVE PULLEY BEING MOUNTED ON A BRACKET MEANS ADAPTED TO BE ADJUSTABLY SECURED TO SAID U-SHAPED SUPPORTING STRUCTURE THROUGH SAID OPPOSED ELONGATED SLOTS, A BELT ENGAGED ABOUT SAID PULLEYS, A MOTOR SUPPORTED ON SAID SIGN FRAME AND CONNECTED TO ROTATE SAID DRIVE PULLEY, THEREBY TO ROTATE SAID SIGN FRAME ABOUT SAID SLAVE PULLEY, WITH SAID BELT HAVING ONE REACH THEREOF UNDER TENSION AND THE OTHER REACH THEREOF FREE DURING SUCH ROTATION OF THE SIGN FRAME, A FRICTION IDLER PULLEY COPLANAR WITH SAID SLAVE AND DRIVE PULLEYS AND MOVABLY MOUNTED ON SAID U-SHAPED SUPPORTING STRUCTURE FOR ENGAGEMENT WITH SAID ONE REACH ONE OF THE BELT, AND RESILIENT MEANS BIASING SAID IDLER PULLEY INTO ENGAGEMENT WITH SAID BELT IN A DIRECTION NORMALLY TO DISTORTINGLY ELONGATE SAID ONE REACH AND MAINTAIN ROTATING DRIVE OF SAID SIGN, SAID RESILIENT MEANS BEING YIELDABLE IN RESPONSE TO ABNORMALLY HIGH BELT FORCES OCCASIONED BY BLOCKAGE OF ROTATION OF SAID SIGN TO ALLOW STRAIGHTENING OF SAID ONE REACH AND CONSEQUENT LOW FRICTION SLIPPAGE OF SAID BELT RELATIVE TO SAID DRIVE PULLEY.
References Cited (Backward Citations)
US2741861A
Cited
US2911744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |