US3234836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cutting polyurethane foam and the like
Assignee: GFC FOAM Corp A CORP OF DE
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Filing: 1963-05-15
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Granted: 1966-02-15
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Expires: 1983-05-15
Abstract
No abstract record available.
Inventors
- 👤 Buff Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:33
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/006; B26D3/008; B25; B25B; B25B11/00; B25B11/005; B26D7/00; B26D7/01; B26D7/018; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2183; Y10T83/2185; Y10T83/647; Y10T83/6579; Y10T83/748; Y10T83/929; Y10T83/9317
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN APPARATUS OF THE CHARACTER DESCRIBED, THE COMBINATION OF, A PERFORATED CONVEYOR BELT, MEANS MOUNTING SAID CONVEYOR BELT TO CARRY A BODY OF PLASTIC FOAM OR THE LIKE UPON A SUPPORTING SURFACE THROUGH A CURRING OR SLITTING ZONE, A SUCTION BOX HAVING A TOP WALL STRUCTURE WITH OPENINGS THERETHROUGH AND ALONG WHICH SAID CONVEYOR BELT PASSES, SUCTION BLOWER MEANS CREATING A PARTIAL VACUUM CONDITION WITHIN SAID SUCTION BOX THEREBY TO PRODUCE A PARTIAL VACUUM CONDITION THROUGH SAID OPENINGS AND THE COEXTENSIVE PORTION OF SAID CONVEYOR BELT WITHIN AN AREA WHICH INCLUDES SAID CUTTING AND SLITTING ZONE WHEREBY THE BODY OF FOAM IS HELD FIRMLY TO SAID CONVEYOR BELT, AND ADJUSTABLE MEANS TO CLOSE SELECTED OF SAID OPENINGS THEREBY TO RESTRICT THE AREA OF THE PARTIAL VACUUM CONDITION THROUGH SAID CONVEYOR BELT.
Claim 2
Dependent Claim
131 words
IN APPARATUS OF THE CHARACTER DESCRIBED, THE COMBINATION OF, A PERFORATED CONVEYOR BELT, MEANS MOUNTING SAID CONVEYOR BELT TO CARRY A BODY OF PLASTIC FOAM OR THE LIKE UPON A SUPPORTING SURFACE THROUGH A CURRING OR SLITTING ZONE, A SUCTION BOX HAVING A TOP WALL STRUCTURE WITH OPENINGS THERETHROUGH AND ALONG WHICH SAID CONVEYOR BELT PASSES, SUCTION BLOWER MEANS CREATING A PARTIAL VACUUM CONDITION WITHIN SAID SUCTION BOX THEREBY TO PRODUCE A PARTIAL VACUUM CONDITION THROUGH SAID OPENINGS AND THE COEXTENSIVE PORTION OF SAID CONVEYOR BELT WITHIN AN AREA WHICH INCLUDES SAID CUTTING AND SLITTING ZONE WHEREBY THE BODY OF FOAM IS HELD FIRMLY TO SAID CONVEYOR BELT, AND ADJUSTABLE MEANS TO CLOSE SELECTED OF SAID OPENINGS THEREBY TO RESTRICT THE AREA OF THE PARTIAL VACUUM CONDITION THROUGH SAID CONVEYOR BELT.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |