US3217574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for shearing an elastomeric cellular material
Assignee: Abbott Laboratories
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Filing: 1964-01-24
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Granted: 1965-11-16
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Expires: 1984-01-24
Abstract
No abstract record available.
Inventors
- 👤 Howard J Nauta
- 👤 William P Grasty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:32
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B26F1/0084; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/209; Y10T83/2092; Y10T83/2096; Y10T83/2122; Y10T83/2133; Y10T83/343; Y10T83/869; Y10T83/8752; Y10T83/8755; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
APPARATUS FOR CLEANLY SHEARING A BODY OF COLLAPSIBLE CELLULAR MATERIAL COMPRISING: A PAIR OF ALIGNED PLATENS HAVING OPPOSED FACES ADAPTED TO COMPRESS A BODY OF CELLLAR MATERIAL THEREBETWEEN AND RESPECTIVELY DEFINING AT LEAST ONE PAIR OF COAXIAL PUNCH HOUSINGS, A PUNCH RECIPROCABLY MOUNTED IN EACH OF SAID HOUSINGS, EACH SAID PUNCH HAVING A HEAD, ONE OF SAID PUNCHES ADAPTED TO EXTEND FROM A FIRST POSITION WHEREIN THE PUNCH HEAD IS COPLANAR WITH THE FACE OF THE PLATEN IN WHICH IT IS MOUNTED TO A SECOND POSITION IN WHICH IT EXTENDS INTO SAID HOUSING OF THE OTHER PLATEN TO SHEAR A SECTION OF SAID MATERIAL, STOP MEANS ADAPTED TO LIMIT MOVEMENT OF SAID UPPER PLATEN TO A FIXED DISTANCE FROM SAID LOWER PLATEN, AND MEANS RESPONSIVE TO MOVEMENT OF SAID ONE PUNCH TOWARD SAID OTHER PLATEN WHEN SAID UPPER PLATEN HAS REACHED THE LIMIT OF ITS DOWNWARD MOVEMENT TO DISPLACE THE OTHER PUNCH AWAY FROM SAID ONE PUNCH AND MAINTAIN A FIXED DISTANCE BETWEEN SAID PUNCHES.
Claim 2
Dependent Claim
165 words
APPARATUS FOR CLEANLY SHEARING A BODY OF COLLAPSIBLE CELLULAR MATERIAL COMPRISING: A PAIR OF ALIGNED PLATENS HAVING OPPOSED FACES ADAPTED TO COMPRESS A BODY OF CELLLAR MATERIAL THEREBETWEEN AND RESPECTIVELY DEFINING AT LEAST ONE PAIR OF COAXIAL PUNCH HOUSINGS, A PUNCH RECIPROCABLY MOUNTED IN EACH OF SAID HOUSINGS, EACH SAID PUNCH HAVING A HEAD, ONE OF SAID PUNCHES ADAPTED TO EXTEND FROM A FIRST POSITION WHEREIN THE PUNCH HEAD IS COPLANAR WITH THE FACE OF THE PLATEN IN WHICH IT IS MOUNTED TO A SECOND POSITION IN WHICH IT EXTENDS INTO SAID HOUSING OF THE OTHER PLATEN TO SHEAR A SECTION OF SAID MATERIAL, STOP MEANS ADAPTED TO LIMIT MOVEMENT OF SAID UPPER PLATEN TO A FIXED DISTANCE FROM SAID LOWER PLATEN, AND MEANS RESPONSIVE TO MOVEMENT OF SAID ONE PUNCH TOWARD SAID OTHER PLATEN WHEN SAID UPPER PLATEN HAS REACHED THE LIMIT OF ITS DOWNWARD MOVEMENT TO DISPLACE THE OTHER PUNCH AWAY FROM SAID ONE PUNCH AND MAINTAIN A FIXED DISTANCE BETWEEN SAID PUNCHES.
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |