US3102584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window shade roller
Assignee: Eastern Products Corp
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Filing: 1961-12-07
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Granted: 1963-09-03
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Expires: 1981-12-07
Abstract
No abstract record available.
Inventors
- 👤 Znamirowski Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:10
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/56; E06B9/78; E06B9/24; E06B9/40; E06B9/42; E06B9/44; E06B9/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
228 words
IN A CORD-OPERATED WINDOW SHADE ROLLER, AN OPERATING MECHANISM COMPRISING A SHAFT, AN ANNULAR CORD WHEEL ROTATABLY MOUNTED ON SAID SHAFT ADJACENT ONE END OF SAID SHAFT AND ADAPTED TO BE AFFIXED TO ONE END OF SAID ROLLER FOR ROTATION THEREWITH AS A UNIT UNDER THE ACTION OF AN OPERATING CORD ENGAGED BY SAID CORD WHEEL, A FITTING ADAPTED TO BE SUPPORTED FROM A WINDOW FRAME OR THE LIKE AND HAVING AN APERTURE ALIGNED WITH AND FORMING A BEARING SURFACE FOR THE OTHER END OF SAID SHAFT, A RATCHET AFFIXED TO SAID SHAFT, A PAWL PIVOTALLY ATTACHED TO SAID FITTING AND HAVING A HOOK FORMATION ARRANGED TO CONTACT SAID RATCHET AND TO LOCK SAID RATCHET AGAINST ROTATION IN ONE DIRECTION CORRESPONDING TO SHADE LOWERING ROTATION OF SAID CORD WHEEL, A FRICTION WASHER ROTATABLY MOUNTED ON SAID SHAFT AND ARRANGED TO CONTACT SAID CORD WHEEL, A SPRING WASHER AFFIXED TO SAID SHAFT AND ARRANGED TO CONTACT SAID FRICTION WASHER AND TO BIAS SAID FRICTION WASHER INTO FRICTION CONTACT WITH SAID CORD WHEEL, SAID FRICTION WASHER AND SAID SPRING WASHER FORMING A FRICTION CLUTCH INTERCOUPLING SAID CORD WHEEL AND SAID SHAFT WHEREBY ROTATION OF SAID CORD WHEEL IN A SHADE LIFTING DIRECTION PRODUCES A CORRESPONDING ROTATION OF SAID SHAFT AND ROTATION OF SAID CORD WHEEL IN A SHADE LOWERING DIRECTION IS OPPOSED BY THE FRICTIONAL RESISTANCE OF SAID FRICTION CLUTCH.
Claim 2
Dependent Claim
228 words
IN A CORD-OPERATED WINDOW SHADE ROLLER, AN OPERATING MECHANISM COMPRISING A SHAFT, AN ANNULAR CORD WHEEL ROTATABLY MOUNTED ON SAID SHAFT ADJACENT ONE END OF SAID SHAFT AND ADAPTED TO BE AFFIXED TO ONE END OF SAID ROLLER FOR ROTATION THEREWITH AS A UNIT UNDER THE ACTION OF AN OPERATING CORD ENGAGED BY SAID CORD WHEEL, A FITTING ADAPTED TO BE SUPPORTED FROM A WINDOW FRAME OR THE LIKE AND HAVING AN APERTURE ALIGNED WITH AND FORMING A BEARING SURFACE FOR THE OTHER END OF SAID SHAFT, A RATCHET AFFIXED TO SAID SHAFT, A PAWL PIVOTALLY ATTACHED TO SAID FITTING AND HAVING A HOOK FORMATION ARRANGED TO CONTACT SAID RATCHET AND TO LOCK SAID RATCHET AGAINST ROTATION IN ONE DIRECTION CORRESPONDING TO SHADE LOWERING ROTATION OF SAID CORD WHEEL, A FRICTION WASHER ROTATABLY MOUNTED ON SAID SHAFT AND ARRANGED TO CONTACT SAID CORD WHEEL, A SPRING WASHER AFFIXED TO SAID SHAFT AND ARRANGED TO CONTACT SAID FRICTION WASHER AND TO BIAS SAID FRICTION WASHER INTO FRICTION CONTACT WITH SAID CORD WHEEL, SAID FRICTION WASHER AND SAID SPRING WASHER FORMING A FRICTION CLUTCH INTERCOUPLING SAID CORD WHEEL AND SAID SHAFT WHEREBY ROTATION OF SAID CORD WHEEL IN A SHADE LIFTING DIRECTION PRODUCES A CORRESPONDING ROTATION OF SAID SHAFT AND ROTATION OF SAID CORD WHEEL IN A SHADE LOWERING DIRECTION IS OPPOSED BY THE FRICTIONAL RESISTANCE OF SAID FRICTION CLUTCH.
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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |