US3973329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for drying synthetic fibrous material
Assignee: Hoechst AG
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Filing: 1974-11-05
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Granted: 1976-08-10
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Expires: 1994-11-05
Abstract
Abstract A process for the drying of textile material, preferably made from hydrophobic fibers, which comprises bringing the textile material to be dried into contact with an absorbent material and, after the two materials have been separated, continuously squeezing off the absorbent material to regenerate its absorptivity, and a device for carrying out this process.
Inventors
- 👤 Erich Feess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:13
CPC Classifications
D; D06; D06B; D06B15/00; D06B15/005
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
54 words
A process for drying a textile material which comprises continuously bringing a wet, predominantly hydrophobic textile material into contact with a predominantly hydrophilic absorbent material, drying the textile material, continuously squeezing off the absorbent material to remove water therefrom and regenerate its absorptivity and returning regenerated absorbent material to contact additional wet textile material.
Claim 2
Dependent Claim
54 words
A process for drying a textile material which comprises continuously bringing a wet, predominantly hydrophobic textile material into contact with a predominantly hydrophilic absorbent material, drying the textile material, continuously squeezing off the absorbent material to remove water therefrom and regenerate its absorptivity and returning regenerated absorbent material to contact additional wet textile material.
Claim 3
Dependent Claim
29 words
The process of claim 1 wherein the absorbent material is a member selected from the group consisting of cotton, spun rayon, cellulose flock, fleece, velvet toweling and cotton velvet.
Claim 4
Dependent Claim
25 words
The process of claim 1 wherein the textile material consists predominantly of a member selected from the group consisting of polyester, polyacrylonitrile and polyamide material.
Claim 5
Dependent Claim
17 words
The process of claim 1 wherein the absorbent material is pressed onto the material to be dried.
Claim 6
Dependent Claim
26 words
The process of claim 1 wherein the textile material is brought into contact with the absorbent material at a rate of about 40 meters per minute.
Claim 7
Dependent Claim
25 words
The process of claim 1 wherein the textile material is pressed on and is maintained in contact with the absorbent material for about 5 seconds.
Claim 8
Dependent Claim
19 words
The process of claim 1 wherein the residual moisture content of the dried textile material is less than 35%.
Claim 9
Dependent Claim
16 words
The process of claim 1 wherein the regenerated absorbent material contains less than about 70% moisture.
Claim 10
Dependent Claim
77 words
A process for drying a wet, predominately hydrophobic textile material which comprises continuously bringing the wet textile material into contact with and maintaining it in contact with a regenerated absorbent material, drying the textile material, continuously squeezing off the absorbent material to remove water therefrom and regenerate its absorptivity, returning wet regenerated absorbent material containing less than about 70% moisture to contact additional wet textile material and removing dried textile material containing less than about 35% moisture.
Claim 11
Dependent Claim
77 words
A process for drying a wet, predominately hydrophobic textile material which comprises continuously bringing the wet textile material into contact with and maintaining it in contact with a regenerated absorbent material, drying the textile material, continuously squeezing off the absorbent material to remove water therefrom and regenerate its absorptivity, returning wet regenerated absorbent material containing less than about 70% moisture to contact additional wet textile material and removing dried textile material containing less than about 35% moisture.
Claim 12
Dependent Claim
23 words
The process of claim 9 wherein the absorbent material is simultaneously contacted with the textile material and squeezed off to regenerate its absorptivity.
Claim 13
Dependent Claim
36 words
The process of claim 9 wherein the absorbent material is contacted with the textile material to dry the textile material, is separated from the dried textile material and is then squeezed off to regenerate its absorptivity.
Claim 14
Dependent Claim
88 words
A process for drying a textile material which comprises continuously bringing a wet, predominantly hydrophobic textile material into contact with at least one endless belt predominantly hydrophilic absorbent material, simultaneously squeezing off the absorbent material to regenerate its absorptivity, removing squeezed off water, pressing the textile material onto the absorbent material and maintaining the textile material in contact with the absorbent material, drying the textile material, separating absorbent material from the textile material, removing dried textile material and returning the absorbent material to contact additional wet textile material.
Claim 15
Dependent Claim
88 words
A process for drying a textile material which comprises continuously bringing a wet, predominantly hydrophobic textile material into contact with at least one endless belt predominantly hydrophilic absorbent material, simultaneously squeezing off the absorbent material to regenerate its absorptivity, removing squeezed off water, pressing the textile material onto the absorbent material and maintaining the textile material in contact with the absorbent material, drying the textile material, separating absorbent material from the textile material, removing dried textile material and returning the absorbent material to contact additional wet textile material.
Claim 16
Dependent Claim
90 words
A process for drying a textile material which comprises continuously bringing a wet, predominantly hydrophobic textile material into contact with two endless belt predominantly hydrophilic absorbent materials, simultaneously squeezing off the absorbent material to regenerate their absorptivity, removing squeezed off water, pressing the textile material between the two absorbent materials and maintaining the textile material in contact with the absorbent material, drying the textile material, separating the wet absorbents from the textile material, removing dried textile material and returning each of the absorbent materials to contact additional wet textile material.
Claim 17
Dependent Claim
90 words
A process for drying a textile material which comprises continuously bringing a wet, predominantly hydrophobic textile material into contact with two endless belt predominantly hydrophilic absorbent materials, simultaneously squeezing off the absorbent material to regenerate their absorptivity, removing squeezed off water, pressing the textile material between the two absorbent materials and maintaining the textile material in contact with the absorbent material, drying the textile material, separating the wet absorbents from the textile material, removing dried textile material and returning each of the absorbent materials to contact additional wet textile material.
Claim 18
Independent Claim
94 words
An apparatus for the continuous drying of a wet, predominantly hydrophobic textile material comprising a means for introducing the textile material into the apparatus, cooperating means for pressing a predominantly hydrophilic absorbent material onto the textile material and for maintaining the textile material in contact with the absorbent material to dry said textile material, means operably connected to said apparatus for squeezing off said absorbent material to remove water therefrom, means mounted on said apparatus for separating absorbent material from the textile material and for returning absorbent material to contact additional wet textile material.
Claim 19
Independent Claim
94 words
An apparatus for the continuous drying of a wet, predominantly hydrophobic textile material comprising a means for introducing the textile material into the apparatus, cooperating means for pressing a predominantly hydrophilic absorbent material onto the textile material and for maintaining the textile material in contact with the absorbent material to dry said textile material, means operably connected to said apparatus for squeezing off said absorbent material to remove water therefrom, means mounted on said apparatus for separating absorbent material from the textile material and for returning absorbent material to contact additional wet textile material.
Claim 20
Dependent Claim
28 words
The apparatus of claim 14 wherein the cooperating pressing means and squeezing means are the same and simultaneously dry the textile material and squeeze off the absorbent material.
Claim 21
Dependent Claim
28 words
The apparatus of claim 14 wherein the means for squeezing off the absorbent material is operably connected to said apparatus and applied only to separated wet absorbent material.
Claim 22
Dependent Claim
30 words
The apparatus of claim 14 wherein there are two absorbent materials and means mounted on said apparatus are provided for pressing absorbent material from two sides onto the textile material.
Claim 23
Independent Claim
114 words
An apparatus for the continuous drying of textile material comprising a means for introducing the textile material into the apparatus, cooperating means for pressing absorbent material from both sides onto the textile material and for maintaining the textile material in contact with the absorbent material to dry said textile material, said pressing means simultaneously drying said textile material and squeezing off said absorbent material to remove water therefrom, means operably connected to said apparatus to maintain said textile material in contact with said absorbents, means mounted on said apparatus for separating absorbent material from each side of the textile material and for returning each of the absorbent materials to contact additional wet textile material.
Claim 24
Independent Claim
114 words
An apparatus for the continuous drying of textile material comprising a means for introducing the textile material into the apparatus, cooperating means for pressing absorbent material from both sides onto the textile material and for maintaining the textile material in contact with the absorbent material to dry said textile material, said pressing means simultaneously drying said textile material and squeezing off said absorbent material to remove water therefrom, means operably connected to said apparatus to maintain said textile material in contact with said absorbents, means mounted on said apparatus for separating absorbent material from each side of the textile material and for returning each of the absorbent materials to contact additional wet textile material.
Claim 25
Dependent Claim
22 words
The apparatus of claim 18 wherein the textile material comprises a predominantly hydrophobic material and the absorbent comprises a predominantly hydrophilic 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) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |