US4504544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High quality mineral wool
Assignee: Energy Fibers International Corp
•
Filing: 1983-11-14
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Granted: 1985-03-12
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Expires: 2003-11-14
Abstract
Abstract Mineral wool produced from fly ash wherein at least 70% to 80% by weight of the mineral wool consists of fibrous strands having a diameter greater than 3 to 5 microns and less than about 7 to 15 microns.
Inventors
- 👤 George J. Monaghan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:47
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/0019; H05B3/0023; C; C03; C03B; C03B5/00; C03B5/005; C03B5/02; C03B5/027; C03B5/0275; C03B5/16; C03B5/26; Y; Y10; Y10S; Y10S106/00; Y10S106/01; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/298
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
34 words
Mineral wool produced from fly ash wherein at least 80% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 7 microns.
Claim 2
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 80% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 7 microns.
Claim 3
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 80% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 10 microns.
Claim 4
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 80% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 10 microns.
Claim 5
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 80% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 15 microns.
Claim 6
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 80% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 15 microns.
Claim 7
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 80% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 3 microns and less than about 7 microns.
Claim 8
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 80% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 3 microns and less than about 7 microns.
Claim 9
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 80% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 3 microns and less than about 10 microns.
Claim 10
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 80% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 3 microns and less than about 10 microns.
Claim 11
Dependent Claim
33 words
Mineral wool produced from fly ash at least 80% by weight of the mineral wool consisting of fibrous strands having a diameter greater than about 3 microns and less than about 15 microns.
Claim 12
Dependent Claim
33 words
Mineral wool produced from fly ash at least 80% by weight of the mineral wool consisting of fibrous strands having a diameter greater than about 3 microns and less than about 15 microns.
Claim 13
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 7 microns.
Claim 14
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 7 microns.
Claim 15
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 10 microns.
Claim 16
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 10 microns.
Claim 17
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 15 microns.
Claim 18
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 5 microns and less than about 15 microns.
Claim 19
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 3 microns and less than about 7 microns.
Claim 20
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 3 microns and less than about 7 microns.
Claim 21
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 3 microns and less than about 10 microns.
Claim 22
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 3 microns and less than about 10 microns.
Claim 23
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 3 microns and less than about 15 microns.
Claim 24
Dependent Claim
34 words
Mineral wool produced from fly ash wherein at least 70% by weight of the mineral wool consists of fibrous strands having a diameter greater than about 3 microns and less than about 15 microns.
Claim 25
Dependent Claim
92 words
Mineral wool produced from fly ash by the process of melting fly ash in a vessel having a nozzle which defines a product exit orifice, a plurality of primary electrodes which define primary current paths adjacent said orifice, and a moveable electrode, comprising steps of: a. energizing said primary electrodes with sufficient multiphase current to maintain a pool of melted product adjacent to said orifice; b. positioning said moveable electrode closer to said orifice than of any said primary electrodes; and c. sequentially replacing each primary electrode electronically with said moveable electrode.
Claim 26
Dependent Claim
92 words
Mineral wool produced from fly ash by the process of melting fly ash in a vessel having a nozzle which defines a product exit orifice, a plurality of primary electrodes which define primary current paths adjacent said orifice, and a moveable electrode, comprising steps of: a. energizing said primary electrodes with sufficient multiphase current to maintain a pool of melted product adjacent to said orifice; b. positioning said moveable electrode closer to said orifice than of any said primary electrodes; and c. sequentially replacing each primary electrode electronically with said moveable electrode.
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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) | 1988-03-11 | 1988-09-10 | 1989-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-11 | 1992-09-10 | 1993-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-11 | 1996-09-10 | 1997-03-12 | $7700.00 | Window Closed / Lapsed |