← Back to Patent Explorer
US3073136A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for continuously gathering fiber

Assignee: Johns Manville Corp
•
Filing: 1960-11-02
•
Granted: 1963-01-15
•
Expires: 1980-11-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Harry N Dean

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 11:54
CPC Classifications
D; D01; D01D; D01D7/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 138 words
APPARATUS FOR FORMING A GLASS FIBER STRAND, COMPRISING IN COMBINATION: A GLASS MELTING RECEPTACLE HAVING A PLURALITY OF ORIFICES THROUGH WHICH GLASS IS EXUDED TO FORM EXUDATIONS; MEANS FOR APPLYING A FORCE TO SAID EXUDATIONS FOR ATTENUATION INTO FILAMENTS, SAID RECEPTACLE AND SAID MEANS BEING DISPOSED TO CAUSE SAID FILAMENTS TO FOLLOW A LONGITUDINAL PATH; A PAIR OF ROTATABLE ELEMENTS, EACH HAVING A PERIPHERAL SURFACE CURVED IN THE DIRECTION OF SAID PATH, ONE OF SAID ELEMENTS BEING POSITIONED TO OVERLAP A PORTION OF THE OTHER OF SAID ELEMENTS, WHEN VIEWED IN PLAN, EACH OF SAID ELEMENTS ALSO BEING ARRANGED TO HAVE ITS PERIPHERAL SURFACE IN TANGENTIAL CONTACT WITH SAID FILAMENTS AND TO DEFINE A FILAMENT GATHERING ZONE WITH THE OTHER OF SAID ELEMENTS; AND MEANS FOR ROTATING SAID ELEMENTS IN COUNTER-ROTATING RELATION TO DETER TWISTING OF SAID FILAMENTS.
Claim 2
Independent Claim 64 words
THE METHOD OF FORMING A GLASS FIBER STRAND WHICH COMPRISES, IN COMBINATION: PROVIDING A PLURALITY OF CONTINUOUS GLASS FIBERS; ADVANCING SAID FIBERS IN SPACED RELATION AND IN A GENERALLY LONGITUDINAL PATH; ENGAGING SAID FIBERS WITH AT LEAST TWO SEPARATE AND MOVING CURVED SURFACES SPACED APART IN A DIRECTION ALONG SAID PATH BUT IN FIBER GATHERING RELATIONSHIP TO FORM A STRAND; AND COLLECTING SAID STRAND.

References Cited (Backward Citations)

US2224149A Cited
US2373078A Cited
US2380373A Cited
US2523338A Cited
US2625498A Cited
US2976580A Cited
US2938821A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-01-14 1966-07-16 1967-01-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-01-14 1970-07-16 1971-01-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-01-14 1974-07-16 1975-01-15 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag