US3712086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing a durable press in garments containing cellulose or cellulosic derivatives
Assignee: American Laundry Machinery Co
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Filing: 1971-10-26
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Granted: 1973-01-23
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Expires: 1991-10-26
Abstract
Abstract A novel apparatus for treating fabric articles containing cellulosic material to impart thereto a durable press comprises a treating chamber having means for providing therein formaldehyde and sulphur dioxide gases, and steam according to the weight of the cellulosic material in the fabric articles being treated, and for then cutting off the steam and supplying dry heat to raise the temperature in the chamber to at least 250*F. Further, the chamber has suitable blowers and air ducts to enable the chamber to be flushed with fresh air and/or steam to rid the garments of residual odors.
Inventors
- 👤 G Payet
- 👤 J Forg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:36
CPC Classifications
D; D06; D06B; D06B5/00; D06B5/12; D06B5/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
26 words
The apparatus set forth in claim 1 wherein said heating means is provided in said interwall space in thermal contact with the wall of said chamber.
Claim 2
Dependent Claim
33 words
The apparatus set forth in claim 2 including insulating means applied against said heating means and spaced from said outer wall leaving an air space for flow of air from said circulating means.
Claim 3
Dependent Claim
19 words
The apparatus set forth in claim 1 wherein said heating means is in direct contact with the treating atmosphere.
Claim 4
Dependent Claim
82 words
The apparatus set forth in claim 1 including an air inlet duct for said chamber and a damper for said duct, said outer wall having air holes for permitting a flow of outside air into said interwall space in the vicinity of said air inlet duct, and a suction fan connected to said interwall space for causing any leakage of gas through said duct when said damper is closed to be drawn via said air holes into said interwall space and exhausted.
Claim 5
Dependent Claim
77 words
The apparatus set forth in claim 1 including a door for said chamber through which the chamber is loaded and/or unloaded, said outer wall extending to the boundary of said door and being sealed thereat to the wall of said chamber, said outer wall having air holes at said boundary, and a suction fan connected to said interwall space for drawing air inwardly through said air holes to exhaust any leakage of gas from around said door.
Claim 6
Dependent Claim
54 words
The apparatus set forth in claim 1 wherein the means for exposing the articles in said chamber to steam includes means for injecting said steam into said chamber, and manually settable means for controlling the amount of steam injected in proportion to the weight of the cellulosic material in the fabric articles being treated.
Claim 7
Independent Claim
81 words
An apparatus for treating fabric articles containing cellulosic material to impart a durable press thereto, comprising a treating chamber for said articles, means for exposing the articles in said chamber to steam, formaldehyde gas and sulphur dioxide gas, means for heating said chamber after the steam is cut off to a temperature of at least 250*F, and a top wall for said chamber slanting downwardly to cause condensation thereon to drain downwardly and not drip on the fabric articles being treated.
Claim 8
Independent Claim
93 words
An apparatus for treating fabric articles containing cellulosic material to impart A durable press thereto, comprising a treating chamber for said articles, means for exposing the articles in said chamber to steam, formaldehyde gas and sulphur dioxide gas, means for heating said chamber after the steam is cut off to a temperature of at least 250*F, a rail in said chamber in which hangers bearing said fabric articles can be attached, and means for heating said rail so that steam is prevented from condensing thereon and dripping onto the fabric articles being treated.
Claim 9
Dependent Claim
37 words
The apparatus set forth in claim 9 wherein the means for heating said chamber includes steam jacketed heating means and wherein said rail constitutes a pipe extending across said chamber for leading steam to said heating means.
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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |