US3122267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for separating a flexible lid from a stack of lids
Assignee: Illinois Tool Works Inc
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Filing: 1962-01-30
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Granted: 1964-02-25
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Expires: 1982-01-30
Abstract
No abstract record available.
Inventors
- 👤 Edwards Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:11
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/16; B65B7/28; B65B7/2807
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
148 words
A METHOD OF SEPARATING THE BOTTOM-MOST LID FROM A STACK OF THIN FLEXIBLE LIDS IN NESTED STACKED RELATIONSHIP, EACH LID HAVING A SHALLOW CUP-LIKE CONFIGURATION WITH A RELATIVELY LARGE BOTTOM WALL SURFACE AND A RELATIVELY SHORT SIDE WALL SURFACE COMPRISING THE STEPS OF IMPOSING A FIRST SEPARATING FORCE AT TWO SPACED POINTS BETWEEN THE PENULTIMATE LID AND THE BOTTOM-MOST LID IN A FIRST DIRECTION ALONG THE AXIS OF THE STACK OF LIDS IN A MANNER TO CAUSE PORTIONS OF THE BOTTOM-MOST LID TO MOVE IN A DIRECTION OPPOSITE TO SAID FIRST DIRECTION IMPOSED BY SAID FIRST FORCE, AND THEN IMPOSING A SECOND FORCE TO SAID BOTTOM-MOST LID IN A DIRECTION TRANSVERSE TO SAID FIRST FORCE TO CAUSE SAID PORTIONS TO SNAP OVER CENTER AND MOVE IN THE SAME DIRECTION OF SAID FIRST DIRECTION WHEREBY A THIN FLEXIBLE LID MAY BE POSITIVELY SEPARATED FROM A STACK OF NESTED LIDS.
References Cited (Backward Citations)
US1260432A
Cited
US1907713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |