US3603119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heat treatment of fabric
Assignee: Ichikin Kogyosha KK
•
Filing: 1970-03-10
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Granted: 1971-09-07
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Expires: 1990-03-10
Abstract
Abstract A fabric heat treatment apparatus comprises a heat treatment chamber containing a plurality of suction feed rolls arranged horizontally to support and advance the fabric through the chamber while the fabric hangs in loops between adjacent rolls. Steam drums are positioned both within the loops and therebelow and the drums have outlets facing the loops to project steam thereagainst to lift and heat the fabric as it passes through the heat treatment chamber whereby to relieve the fabric of tension.
Inventors
- 👤 Yikiyoshi Kawaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:21
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B13/14; F26B13/16; F26B13/101; F26B13/103; Y; Y10; Y10S; Y10S68/00; Y10S68/903
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
70 words
Fabric heat treatment apparatus comprising a treatment chamber, spaced feed rolls in said chamber for engaging the fabric to advance the same through said chamber while the fabric hangs in loops between adjacent rolls, and means for projecting a heating medium against the loops of fabric in an upward direction to suppOrt and lift the loops while heating the same whereby to relieve the fabric of tension in the loops.
Claim 2
Dependent Claim
70 words
Fabric heat treatment apparatus comprising a treatment chamber, spaced feed rolls in said chamber for engaging the fabric to advance the same through said chamber while the fabric hangs in loops between adjacent rolls, and means for projecting a heating medium against the loops of fabric in an upward direction to suppOrt and lift the loops while heating the same whereby to relieve the fabric of tension in the loops.
Claim 3
Dependent Claim
38 words
Apparatus as claimed in claim 1, wherein said feed rolls are perforate at least in the upper surface thereof, said fabric resting on the upper surface of the rolls, and means for establishing a suction within the rolls.
Claim 4
Dependent Claim
30 words
Apparatus as claimed in claim 2, wherein said means for projecting heating medium comprises drums positioned within said loops and having outlets facing said loops at the inner surfaces thereof.
Claim 5
Dependent Claim
12 words
Apparatus as claimed in claim 3, wherein said outlets face obliquely upwards.
Claim 6
Dependent Claim
38 words
Apparatus as claimed in claim 3, wherein said means for projecting heating medium further comprises additional drums positioned beneath the loops and having upwardly facing outlets for discharging medium against said loops to support and lift the same.
Claim 7
Dependent Claim
30 words
Apparatus as claimed in claim 5 comprising steam chambers connected to said drums and blowers to feed steam from the chambers to said drums, said heating medium being the steam.
Claim 8
Dependent Claim
25 words
Apparatus as claimed in claim 4, wherein said outlets are disposed on opposite sides of said drums to face opposite inner surfaces of the loops.
Claim 9
Dependent Claim
18 words
Apparatus as claimed in claim 6 comprising heating means in said steam chambers to superheat the steam therein.
Claim 10
Dependent Claim
37 words
Apparatus as claimed in claim 2, wherein said feed rolls include hollow axles communicating with the interior of said rolls, and said means for establishing suction within the rolls comprises a suction blower connected to said axles.
Claim 11
Dependent Claim
32 words
Apparatus a claimed in claim 1, wherein said feed rolls are arranged in a horizontal row in successive groups, and means is provided for driving the rolls of each group in rotation.
References Cited (Backward Citations)
US3512265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |