Patent US2241225A successfully refreshed from Google Patents.
US4004685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of fabrics in machine dryers
Assignee: Joh A Benckiser GmbH
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Filing: 1972-03-07
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Granted: 1977-01-25
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Expires: 1992-03-07
Abstract
Abstract Fabrics are treated in machine drying apparatus to reduce static electricity carried by the fabrics, soften the fabrics and improve other fabric properties. A reusable dispenser of solid or semi-solid fabric-conditioning agent is placed within the dryer drum and the fabrics are tumbled in the dryer thereby causing some of the fabric-conditioning agent to be transferred to the fabric. When the dryer is heated, the heat of the dryer helps cause the fabric-conditioning agent to soften and assist in its distribution over the surface of fabric with which it is brought into tumbling contact.
Inventors
- 👤 William G. Mizuno
- 👤 Iris N. Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:09
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/20; D06F58/203; D06M; D06M23/00; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/31801; Y10T428/31804
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
191 words
An article for conditioning fabrics in a machine clothes dryer by contact of the fabrics with a fabric-conditioning agent supplied by said article, said article characterized by having: a. fabric conditioning agent in a form such as a bar that is solid at normal room temperature and softens at the elevated temperatures reached during normal operation of a machine clothes dryer; b. a dispenser body surrounding or enclosing the fabric conditioning agent; c. means for selectively attaching the dispenser body to a wall of a machine clothes dryer drum; d. a permeable surface of said dispenser body through which only a small amount of said enclosed fabric conditioning agent can pass when it is softened by heating of said article in a dryer, thereby allowing the enclosed fabric-conditioning agent to act as a long lasting reservoir for fabric conditioning agent which, after it passes through the permeable surface, is transferred to the fabric being treated by contact between the fabric and the permeable surface of the article; and e. said article being capable of substantial re-use in conditioning different batches of fabric without replenishing the fabric conditioner of paragraph "a" hereof.
Claim 2
Dependent Claim
191 words
An article for conditioning fabrics in a machine clothes dryer by contact of the fabrics with a fabric-conditioning agent supplied by said article, said article characterized by having: a. fabric conditioning agent in a form such as a bar that is solid at normal room temperature and softens at the elevated temperatures reached during normal operation of a machine clothes dryer; b. a dispenser body surrounding or enclosing the fabric conditioning agent; c. means for selectively attaching the dispenser body to a wall of a machine clothes dryer drum; d. a permeable surface of said dispenser body through which only a small amount of said enclosed fabric conditioning agent can pass when it is softened by heating of said article in a dryer, thereby allowing the enclosed fabric-conditioning agent to act as a long lasting reservoir for fabric conditioning agent which, after it passes through the permeable surface, is transferred to the fabric being treated by contact between the fabric and the permeable surface of the article; and e. said article being capable of substantial re-use in conditioning different batches of fabric without replenishing the fabric conditioner of paragraph "a" hereof.
Claim 3
Dependent Claim
13 words
An article of claim 1 wherein said permeable surface is made of cloth.
Claim 4
Dependent Claim
12 words
An article of claim 2 wherein said cloth is a cotton/polyester cloth.
Claim 5
Dependent Claim
28 words
An article of claim 3 wherein said means for attaching the dispenser body to a wall of a machine dryer drum includes a woven loop and hook fastener.
Claim 6
Dependent Claim
15 words
An article of claim 4 wherein the dispenser body is a cloth bag or envelope.
Claim 7
Dependent Claim
14 words
An article of claim 5 wherein the fabric conditioning agent comprises an anti-static agent.
Claim 8
Dependent Claim
19 words
An article of claim 5 wherein the agent contained in said bag comprises dimethyl di (hydrogenated tallow) ammonium chloride.
Claim 9
Dependent Claim
115 words
A dispenser for normally solid fabric conditioning agents, said dispenser comprising: a. a cotton/polyester cloth bag or envelope for containing a fabric conditioning agent in heat softenable form, said cloth providing a permeable surface through which said agent can penetrate when heated by a machine dryer; b. fabric conditioning agent in a normally solid and heat-softenable form contained within said cloth bag, said agent being a mixture consisting essentially of stearyl dimethyl benzyl ammonium chloride and dimethyl di (hydrogenated tallow) ammonium chloride in a weight ratio of about 2-4:1; and c. a woven loop and hook fastener carried by said cloth bag for selectively attaching said bag to a wall of a machine dryer drum.
Claim 10
Dependent Claim
115 words
A dispenser for normally solid fabric conditioning agents, said dispenser comprising: a. a cotton/polyester cloth bag or envelope for containing a fabric conditioning agent in heat softenable form, said cloth providing a permeable surface through which said agent can penetrate when heated by a machine dryer; b. fabric conditioning agent in a normally solid and heat-softenable form contained within said cloth bag, said agent being a mixture consisting essentially of stearyl dimethyl benzyl ammonium chloride and dimethyl di (hydrogenated tallow) ammonium chloride in a weight ratio of about 2-4:1; and c. a woven loop and hook fastener carried by said cloth bag for selectively attaching said bag to a wall of a machine dryer drum.
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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) | 1980-01-25 | 1980-07-26 | 1981-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-25 | 1984-07-26 | 1985-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-25 | 1988-07-26 | 1989-01-25 | $7700.00 | Window Closed / Lapsed |