← Back to Patent Explorer
US3759680A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for producing fibers from glass

Assignee: Owens Corning
•
Filing: 1970-09-14
•
Granted: 1973-09-18
•
Expires: 1990-09-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The disclosure embraces a method of and apparatus for producing fibers from heat-softenable materials, particularly glass, be centrifuging streams of heat-softened glass delivered through passages of equal diameters, differing lengths and differing flow resistances in the peripheral wall of a rotating spinner into a gaseous attenuating blast and establishing high temperature and other environmental conditions achieving relationship between glass flow of the streams and heat and attenuating energy at different regions with respect to the spinner wall to control the range of size or diameters of the fibers attenuated by the blast and for producing fibers of substantially uniform diameters within a comparatively narrow size range.

Inventors

  • 👤 D Kleist
  • 👤 C Buchanan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 21:41
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/045; C03B37/048; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-09-17 1977-03-19 1977-09-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-09-17 1981-03-19 1981-09-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-09-17 1985-03-19 1985-09-18 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag