Patent US3113349A successfully refreshed from Google Patents.
US3113349A
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Methods and apparatus for the production of perforated non-woven fiber webs
Assignee: FREUDENBERG USA Inc
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Filing: 1960-11-29
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Granted: 1963-12-10
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Expires: 1980-11-29
Abstract
No abstract record available.
Inventors
- 👤 Nottebohm Carl-Ludwig
- 👤 Fahrbach Erich
- 👤 Graber Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:27
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/74; D04H1/40; D04H1/44; D04H1/46; D04H1/492; D04H1/495; D04H1/72; D04H1/736; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
METHOD FOR PRODUCING A MULTIPLE NUMBER OF SPACED APERTURES IN A NON-WOVEN FIBER WEB, WHICH COMPRISES PASSING A STREAM OF GAS THROUGH A PERFORATE SURFACE HAVING A MULTIPLE NUMBER OF PERFORATIONS THEREIN AND THE WEB AGAINST AN IMPERFORATE BACKING SURFACE WHILE MAINTAINING THE WEB BETEEN SAID PERFORATE SURFACE AND SAID IMPERFORATE BACKING SURFACE, THE PERFORATE SURFACE PRESSING THE WEB INTO CONTACT WITH THE IMIPERFORATE SURFACE, THE VELOCITY OF SAID GAS STREAM BEING SUFFICIENT TO EFFECT LATERAL DISPLACEMENT OF FIBERS WITHIN THE WEB AND THEREBY PROVIDE SAID SPACED APERTURES THEREIN.
Claim 2
Dependent Claim
89 words
METHOD FOR PRODUCING A MULTIPLE NUMBER OF SPACED APERTURES IN A NON-WOVEN FIBER WEB, WHICH COMPRISES PASSING A STREAM OF GAS THROUGH A PERFORATE SURFACE HAVING A MULTIPLE NUMBER OF PERFORATIONS THEREIN AND THE WEB AGAINST AN IMPERFORATE BACKING SURFACE WHILE MAINTAINING THE WEB BETEEN SAID PERFORATE SURFACE AND SAID IMPERFORATE BACKING SURFACE, THE PERFORATE SURFACE PRESSING THE WEB INTO CONTACT WITH THE IMIPERFORATE SURFACE, THE VELOCITY OF SAID GAS STREAM BEING SUFFICIENT TO EFFECT LATERAL DISPLACEMENT OF FIBERS WITHIN THE WEB AND THEREBY PROVIDE SAID SPACED APERTURES THEREIN.
Claim 3
Dependent Claim
93 words
APPARATUS FOR THE PERFORATION OF NON-WOVEN FIBER WEBS, COMPRISING MEANS DEFINING AN IMPERFORATE BACKING SURFACE, A MESH SCREEN DEFINING A PERFORATE SURFACE ADJACENT SAID IMPERFORATE BACKING SURFACE, MEANS FOR SUBSTANTIALLY CONTINUOUSLY PASSING A WEB OF NON-WOVEN TEXTILE FIBERS AGAINST SAID IMPERFORATE BACKING SURFACE BETWEEN IT AND SAID PERFORATE SURFACE AND THEN AWAY FROM SAID PERFORATE SURFACE, AND MEANS FOR PASSING A STREAM OF GAS THROUGH SAID PERFORATE SURFACE AGASINST SAID IMPERFORATE BACKING SURFACE TO EFFECT LATERAL DISPLACEMENT OF THE FIBERS WITHIN THE WEB AND THEREBY PROVIDE SAID PERFORATION OF THE NON-WOVEN FIBER WEB.
Claim 4
Dependent Claim
93 words
APPARATUS FOR THE PERFORATION OF NON-WOVEN FIBER WEBS, COMPRISING MEANS DEFINING AN IMPERFORATE BACKING SURFACE, A MESH SCREEN DEFINING A PERFORATE SURFACE ADJACENT SAID IMPERFORATE BACKING SURFACE, MEANS FOR SUBSTANTIALLY CONTINUOUSLY PASSING A WEB OF NON-WOVEN TEXTILE FIBERS AGAINST SAID IMPERFORATE BACKING SURFACE BETWEEN IT AND SAID PERFORATE SURFACE AND THEN AWAY FROM SAID PERFORATE SURFACE, AND MEANS FOR PASSING A STREAM OF GAS THROUGH SAID PERFORATE SURFACE AGASINST SAID IMPERFORATE BACKING SURFACE TO EFFECT LATERAL DISPLACEMENT OF THE FIBERS WITHIN THE WEB AND THEREBY PROVIDE SAID PERFORATION OF THE NON-WOVEN FIBER WEB.
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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |