US3174238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic sheet feeding device
Assignee: McGraw Edison Co
•
Filing: 1962-04-17
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Granted: 1965-03-23
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Expires: 1982-04-17
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Grantham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:14
CPC Classifications
D; D06; D06F; D06F67/00; D06F67/04; D06C; D06C3/00; D06C2700/00; D06C2700/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
APPARATUS FOR SPREADING A LAUNDRY FLATWORK WORKPIECE, AND HAVING A RECEIVING END ANE A DELIVERY END, SAID APPARATUS BEING ADAPTED TO DELIVER THE WORKPIECE TO A DELIVERY ZONE ADJACENT TO FURTHER PROCESSING MEANS, SAID APPARATUS COMPRISING A PAIR OF ELONGATED SWINGABLE MEMBERS EACH PIVOTED AT A WORKPIECE RECEIVING ZONE, AT SAID RECEIVING END AND EXTENDING TO THE DELIVERY ZONE, AN ENDLESS CONVEYOR CARRIED ON EACH MEMBER, WORKPIECE GRIPPING MEANS CARRIED ON EACH CONVEYOR EACH ADAPTED TO GRIP ONE OF THE OPPOSITE CORNERS OF THE LEADING EDGE OF THE WORKPIECE AND FOR ADVANCING THE WORKPIECE TO SAID DELIVERY END WHEN SAID CONVEYOR IS RUNNING, AND MEANS BIASING SAID SWINGABLE MEMBERS OUTWARDLY ARCUATELY AROUND THEIR RESPECTIVE PIVOTS AND AWAY FROM EACH OTHER TO STRETCH THE LEADING EDGE TO A TAUT CONDITION.
Claim 2
Dependent Claim
129 words
APPARATUS FOR SPREADING A LAUNDRY FLATWORK WORKPIECE, AND HAVING A RECEIVING END ANE A DELIVERY END, SAID APPARATUS BEING ADAPTED TO DELIVER THE WORKPIECE TO A DELIVERY ZONE ADJACENT TO FURTHER PROCESSING MEANS, SAID APPARATUS COMPRISING A PAIR OF ELONGATED SWINGABLE MEMBERS EACH PIVOTED AT A WORKPIECE RECEIVING ZONE, AT SAID RECEIVING END AND EXTENDING TO THE DELIVERY ZONE, AN ENDLESS CONVEYOR CARRIED ON EACH MEMBER, WORKPIECE GRIPPING MEANS CARRIED ON EACH CONVEYOR EACH ADAPTED TO GRIP ONE OF THE OPPOSITE CORNERS OF THE LEADING EDGE OF THE WORKPIECE AND FOR ADVANCING THE WORKPIECE TO SAID DELIVERY END WHEN SAID CONVEYOR IS RUNNING, AND MEANS BIASING SAID SWINGABLE MEMBERS OUTWARDLY ARCUATELY AROUND THEIR RESPECTIVE PIVOTS AND AWAY FROM EACH OTHER TO STRETCH THE LEADING EDGE TO A TAUT CONDITION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |