US2771387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bituminous treated glass fiber structures and methods of producing them
Assignee: Owens Corning
•
Filing: 1951-11-21
•
Granted: 1956-11-20
•
Expires: 1971-11-21
Abstract
No abstract record available.
Inventors
- 👤 Kleist Dale
- 👤 William K Sidwell
- 👤 Ralph J Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:50
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; B29C70/504; B29C70/06; B29C70/08; B29C70/083; B29C70/68; B29C70/82; C; C04; C04B; C04B30/00; C04B30/02; D; D06; D06N; D06N5/00; B29K; B29K2095/00; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0854; B29K2105/10; B29K2105/101; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31815; Y10T442/00; Y10T442/60; Y10T442/603; Y10T442/604; Y10T442/643; Y10T442/644
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
43 words
A COMPOSITION OF MATTER COMPRISING A POROUS FABRIC OF GLASS WOOL FIBERS, A BITUMINOUS COMPOUND IMPREGNATING THE FABRIC AND COATING THE SURFACES THEREOF, AND A PLURALITY OF GLASS FIBER STRANDS IN CLOSELY SPACED APART RELATION EMBEDDED WITHIN THE COATING OF THE BITUMINOUS COMPOUND.
Claim 2
Dependent Claim
43 words
A COMPOSITION OF MATTER COMPRISING A POROUS FABRIC OF GLASS WOOL FIBERS, A BITUMINOUS COMPOUND IMPREGNATING THE FABRIC AND COATING THE SURFACES THEREOF, AND A PLURALITY OF GLASS FIBER STRANDS IN CLOSELY SPACED APART RELATION EMBEDDED WITHIN THE COATING OF THE BITUMINOUS COMPOUND.
Claim 3
Independent Claim
140 words
THE METHOD OF MANUFACTURING A GLASS FIBER FABRIC IMPREGNATED WITH BITUMINOUS MATERIAL COMPRISING THE STEPS OF HEATING A BITUMINOUS COMPOSITION ORDINARILY SOLID AT ROOM TEMPERATURE TO FLUID CONDITION, APPLYING THE HOT MELT OF BITUMINOUS MATERIAL TO A POROUS FABRIC OF GLASS WOOL FIBERS IN SUFFICIENT QUANTITY TO FILL THE PORES OF THE FABRIC AND PROVIDE A GENEROUS COATING, PASSING THE FABRIC WITH THE BITUMEN THROUGH SQUEEZE ROLLS WHILE THE BITUMINOUS COMPOSITION IS STILL IN FLOWABLE FORM WHEREBY PUDDLES OF BITUMINOUS MATERIAL ARE FORMED AT THE NIP, FEEDING A PLURALITY OF STRANDS OF CONTINUOUS FIBERS IN CLOSELY SPACED APART PARELLEL RELATION THROUGH THE PUDDLES AND THEN BETWEEN THE SQUEEZE ROLLERS WHEREBY THEY ARE FULLY WETTED BY THE BTIUMINOUS COMPOSITION AND EMBEDDED WITHIN THE COATING OF THE FABRIC, AND THEN PASSING THE IMPREGNATED MASS ABOUT COOLING ROLLS TO SET THE BITUMINOUS MATERIAL.
Claim 4
Independent Claim
140 words
THE METHOD OF MANUFACTURING A GLASS FIBER FABRIC IMPREGNATED WITH BITUMINOUS MATERIAL COMPRISING THE STEPS OF HEATING A BITUMINOUS COMPOSITION ORDINARILY SOLID AT ROOM TEMPERATURE TO FLUID CONDITION, APPLYING THE HOT MELT OF BITUMINOUS MATERIAL TO A POROUS FABRIC OF GLASS WOOL FIBERS IN SUFFICIENT QUANTITY TO FILL THE PORES OF THE FABRIC AND PROVIDE A GENEROUS COATING, PASSING THE FABRIC WITH THE BITUMEN THROUGH SQUEEZE ROLLS WHILE THE BITUMINOUS COMPOSITION IS STILL IN FLOWABLE FORM WHEREBY PUDDLES OF BITUMINOUS MATERIAL ARE FORMED AT THE NIP, FEEDING A PLURALITY OF STRANDS OF CONTINUOUS FIBERS IN CLOSELY SPACED APART PARELLEL RELATION THROUGH THE PUDDLES AND THEN BETWEEN THE SQUEEZE ROLLERS WHEREBY THEY ARE FULLY WETTED BY THE BTIUMINOUS COMPOSITION AND EMBEDDED WITHIN THE COATING OF THE FABRIC, AND THEN PASSING THE IMPREGNATED MASS ABOUT COOLING ROLLS TO SET THE BITUMINOUS MATERIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |