US4113456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiberization energy conservation
Assignee: Saint Gobain Industries SA
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Filing: 1977-08-31
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Granted: 1978-09-12
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Expires: 1997-08-31
Abstract
Abstract Gas blast attenuation of thermoplastic attenuable material is disclosed including the use of a principle current or blast with one or more jets of smaller cross section directed transversely into the blast and creating zones of interaction having whirling currents, especially of the kind developed in toration techniques, the whirling currents including fuel and comburent components in proportions providing a combustible mixture, and a stream of thermoplastic attenuable material at a temperature at least as high as the ignition temperature of said mixture being delivered into each zone of interaction.
Inventors
- 👤 Marcel Levecque
- 👤 Jean A. Battigelli
- 👤 Dominique Plantard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:46
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
121 words
A method for attenuating thermoplastic mineral material comprising generating a gaseous blast, generating a gaseous jet having a smaller cross sectional dimension than that of the blast in a direction transversely of the blast, the jet having greater kinetic energy per unit of volume than the blast and being directed transversely into the blast thereby developing a zone of interaction having whirling gas currents, and delivering a stream of attenuable material into said zone, characterized in that the gas currents in said zone include fuel and comburent components in proportions providing a combustible mixture, and in that the stream of attenuable material is delivered into said zone at a temperature at least as high as the ignition temperature of said mixture.
Claim 2
Independent Claim
121 words
A method for attenuating thermoplastic mineral material comprising generating a gaseous blast, generating a gaseous jet having a smaller cross sectional dimension than that of the blast in a direction transversely of the blast, the jet having greater kinetic energy per unit of volume than the blast and being directed transversely into the blast thereby developing a zone of interaction having whirling gas currents, and delivering a stream of attenuable material into said zone, characterized in that the gas currents in said zone include fuel and comburent components in proportions providing a combustible mixture, and in that the stream of attenuable material is delivered into said zone at a temperature at least as high as the ignition temperature of said mixture.
Claim 3
Dependent Claim
23 words
A method as defined in claim 1 in which the fuel and comburent components are present in said zone in substantially stoichiometric proportions.
Claim 4
Dependent Claim
33 words
A method as defined in claim 1 in which at least one of said fuel and comburent components is introduced into said zone as at least a portion of the jet or blast.
Claim 5
Dependent Claim
47 words
A method as defined in claim 1 in which one of said components is introduced into said zone as at least a portion of the jet and in which the other of said components is introduced into said zone as at least a portion of the blast.
Claim 6
Dependent Claim
43 words
A method as defined in claim 1 in which the fuel is introduced into said zone as at least a portion of the jet and in which the comburent component is introduced into said zone as at least a portion of said blast.
Claim 7
Dependent Claim
54 words
A method as defined in claim 1 in which the comburent is introduced into said zone as at least a portion of the jet or blast and in which the fuel component is introduced into said zone by generating a pressurized gaseous fuel jet directed into the blast in the region of said zone.
Claim 8
Dependent Claim
26 words
A method as defined in claim 6 in which the fuel jet is directed into the blast in a position upstream of the first mentioned jet.
Claim 9
Dependent Claim
57 words
A method as defined in claim 1 in which the fuel component is introduced into said zone by generating a pressurized gaseous fuel jet directed into the blast, upstream of the first mentioned jet and in which the comburent is introduced into the blast as air delivered under pressure into the blast upstream of the fuel jet.
Claim 10
Dependent Claim
35 words
A method as defined in claim 1 in which the temperature of the blast in a region upstream of said zone is lower than that of the stream of attenuable material delivered into said zone.
Claim 11
Independent Claim
97 words
A method for attenuating thermoplastic mineral material comprising generating a gaseous blast, generating a gaseous jet having a smaller cross sectional dimension than that of the blast in a direction transversely of the blast, the jet having greater kinetic energy per unit of volume than the blast and being directed transversely into the blast thereby developing a zone of interaction having whirling gas currents, delivering a stream of attenuable material into said zone, the gas currents in said zone including fuel and comburent components in proportions providing a combustible mixture, and igniting said mixture in said zone.
Claim 12
Independent Claim
97 words
A method for attenuating thermoplastic mineral material comprising generating a gaseous blast, generating a gaseous jet having a smaller cross sectional dimension than that of the blast in a direction transversely of the blast, the jet having greater kinetic energy per unit of volume than the blast and being directed transversely into the blast thereby developing a zone of interaction having whirling gas currents, delivering a stream of attenuable material into said zone, the gas currents in said zone including fuel and comburent components in proportions providing a combustible mixture, and igniting said mixture in said zone.
Claim 13
Dependent Claim
42 words
A method as defined in claim 10 in which said comburent component is introduced into said zone as at least a portion of the blast and in which the fuel component is introduced into said zone independently of the jet and blast.
Claim 14
Independent Claim
106 words
A method for attenuating a thermoplastic material comprising generating a gaseous blast, generating a plurality of gaseous jet flows, each jet flow having a smaller cross sectional dimension than that of the blast in a direction transversely of the blast, each jet flow having a greater kinetic energy per unit of volume than the blast and being directed transversely into the blast, each jet flow thereby developing a zone of interaction in the blast, delivering a stream of thermoplastic material into each interaction zone, developing a combustible mixture of fuel and comburent in each of said interaction zones, and igniting the mixture in each interaction zone.
Claim 15
Independent Claim
106 words
A method for attenuating a thermoplastic material comprising generating a gaseous blast, generating a plurality of gaseous jet flows, each jet flow having a smaller cross sectional dimension than that of the blast in a direction transversely of the blast, each jet flow having a greater kinetic energy per unit of volume than the blast and being directed transversely into the blast, each jet flow thereby developing a zone of interaction in the blast, delivering a stream of thermoplastic material into each interaction zone, developing a combustible mixture of fuel and comburent in each of said interaction zones, and igniting the mixture in each interaction zone.
Claim 16
Dependent Claim
18 words
A method as in claim 12 wherein fuel is supplied to each interaction zone by said jet flows.
Claim 17
Dependent Claim
18 words
A method as in claim 12 wherein comburent is supplied to each interaction zone by said jet flows.
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) | 1981-09-11 | 1982-03-13 | 1982-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-11 | 1986-03-13 | 1986-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-11 | 1990-03-13 | 1990-09-12 | $7700.00 | Window Closed / Lapsed |