Patent US4274209A successfully refreshed from Google Patents.
US4274209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for improved aftertreatment of textile material by application of microwaves
Assignee: Ichikin Ltd
•
Filing: 1979-12-28
•
Granted: 1981-06-23
•
Expires: 1999-12-28
Abstract
Abstract For improved treatment of textile material after scouring or dyeing by application of microwaves, a preparatory heating chamber replete with steam is arranged for passage of the textile material substantially in a sheet form, and, is accompanied with a downstream microwave irradiation chamber of a confined construction replete with steam in which microwaves are applied to the textile material in the form of a rotating roll. Ideal aftertreatment can be carried out uniformly throughout the textile material at high thermal efficiency without any leakage of microwaves and steam.
Inventors
- 👤 Bunshire Kawaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:01
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B3/00; F26B3/32; F26B3/34; F26B3/343
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
106 words
Apparatus for improved aftertreatment of textile material by application of microwaves comprising a preparatory heating chamber arranged on the travelling path of said textile material which said textile material travels through and is provided with means for feeding steam into the interior of said chamber, and an almost confined microwave irradiation chamber arranged on the downstream side of said preparatory heating chamber, said microwave irradiation chamber being provided with means for winding up said textile material into a roll, means for rotating said roll following a programmed sequence, an applicator of said microwaves and means for feeding steam into the interior of said microwave irradiation chamber.
Claim 2
Dependent Claim
106 words
Apparatus for improved aftertreatment of textile material by application of microwaves comprising a preparatory heating chamber arranged on the travelling path of said textile material which said textile material travels through and is provided with means for feeding steam into the interior of said chamber, and an almost confined microwave irradiation chamber arranged on the downstream side of said preparatory heating chamber, said microwave irradiation chamber being provided with means for winding up said textile material into a roll, means for rotating said roll following a programmed sequence, an applicator of said microwaves and means for feeding steam into the interior of said microwave irradiation chamber.
Claim 3
Dependent Claim
28 words
Apparatus as claimed in claim 1 further comprising a shelter construction arranged near the inlet of said microwave irradiation chamber for blocking leakage of said steam and microwaves.
Claim 4
Dependent Claim
51 words
Apparatus as claimed in claim 2 in which said shelter construction includes a pair of vertical walls defining a space, an adjustable slit plate closing the top of said space whilst allowing passage of said textile material, and a blocking filter arranged within said space which said textile material passes through.
Claim 5
Dependent Claim
50 words
Apparatus as claimed in claim 3 in which said blocking filter includes a plurality of electric wave damping elements aligned vertically on the one side of the traveling path of said textile material and a vertically elongated electric wave absorbable plate arranged on the other side of said travelling path.
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) | 1984-06-22 | 1984-12-22 | 1985-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-22 | 1988-12-22 | 1989-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-22 | 1992-12-22 | 1993-06-23 | $7700.00 | Window Closed / Lapsed |