US3168307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabric handling
Assignee: Walton SL
•
Filing: 1962-07-09
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Granted: 1965-02-02
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Expires: 1982-07-09
Abstract
No abstract record available.
Inventors
- 👤 Richard R Walton
- 👤 George E Munchbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:43
CPC Classifications
D; D06; D06F; D06F67/00; D06F67/04; B; B65; B65H; B65H3/00; B65H3/08; B65H3/10; B65H3/14; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/423; B65H2301/4232; B65H2301/42324
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A CLOTH LOOSENING APPARATUS FOR LOOSENING THE TOP SHEET OF CLOTH FROM A STACK BY DISTORTING SAID SHEET, SAID APPARATUS COMPRISING A WALL FORMING MEANS LOCATED INWARDLY FROM THE EDGES OF SAID TOP SHEET, SAID WALL FORMING MEANS ARRANGED TO APPLY A LIFTING FORCE TO A PREDETERMINED PART OF SAID SHEET TO FORM A WALL THEREIN, SAID WALL FORMING MEANS PROVIDING AN OPEN SPACE ABOVE SAID STACK IN WHICH SAID WALL CAN STAND AT A SUBSTANTIAL ANGLE TO AN ADJACENT PART OF SAID SHEET, SAID WALL FORMING MEANS ADAPTED TO FORM SAID WALL WITHOUT PRESSING SAID ADJACENT PART AGAINST SAID STACK, AND POSITIVE PRESSURIZED AIR MEANS INCLUDING MEANS SUPPLYING AIR UNDER POSITIVE PRESSURE ARRANGED TO PRODUCE A LATERAL STREAM OF SUCH AIR AGAINST THE OUTER SURFACE OF SAID WALL, IN THE GENERAL DIRECTION OF SAID ADJACENT PART OF SAID SHEET, WHEREBY SAID AIR STREAM CAN AT LEAST PARTIALLY PASS LATERALLY THROUGH SAID WALL, THENCE LATERALLY BETWEEN SAID ADJACENT PART AND SAID STACK TO LOOSEN SAID ADJACENT PART FROM SAID STACK.
Claim 2
Dependent Claim
170 words
A CLOTH LOOSENING APPARATUS FOR LOOSENING THE TOP SHEET OF CLOTH FROM A STACK BY DISTORTING SAID SHEET, SAID APPARATUS COMPRISING A WALL FORMING MEANS LOCATED INWARDLY FROM THE EDGES OF SAID TOP SHEET, SAID WALL FORMING MEANS ARRANGED TO APPLY A LIFTING FORCE TO A PREDETERMINED PART OF SAID SHEET TO FORM A WALL THEREIN, SAID WALL FORMING MEANS PROVIDING AN OPEN SPACE ABOVE SAID STACK IN WHICH SAID WALL CAN STAND AT A SUBSTANTIAL ANGLE TO AN ADJACENT PART OF SAID SHEET, SAID WALL FORMING MEANS ADAPTED TO FORM SAID WALL WITHOUT PRESSING SAID ADJACENT PART AGAINST SAID STACK, AND POSITIVE PRESSURIZED AIR MEANS INCLUDING MEANS SUPPLYING AIR UNDER POSITIVE PRESSURE ARRANGED TO PRODUCE A LATERAL STREAM OF SUCH AIR AGAINST THE OUTER SURFACE OF SAID WALL, IN THE GENERAL DIRECTION OF SAID ADJACENT PART OF SAID SHEET, WHEREBY SAID AIR STREAM CAN AT LEAST PARTIALLY PASS LATERALLY THROUGH SAID WALL, THENCE LATERALLY BETWEEN SAID ADJACENT PART AND SAID STACK TO LOOSEN SAID ADJACENT PART FROM SAID STACK.
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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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |