Patent US4528514A successfully refreshed from Google Patents.
Patent US3743474A successfully refreshed from Google Patents.
US3743474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet drying method
Assignee: TEXTILE SYST Inc
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Filing: 1971-10-12
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Granted: 1973-07-03
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Expires: 1991-10-12
Abstract
Abstract A method of drying carpets and the like including the steps of passing wet carpet along its length through a housing along a rectilinear path, passing hot air from one side of the path through the carpet and recirculating the air from the other side of the carpet about the side edges of the carpet, heating the air after it has passed through the carpet prior to recirculating the air, and exhausting to the atmosphere that portion of the air which is passed through the carpet first entering the housing.
Inventors
- 👤 J Brock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:03
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
118 words
A method of drying carpet and the like comprising: moving a length of carpet along its length through a predetermined path, passing air at an elevated temperature from one side of the path through the carpet to the other side of the path at a first position along the path at a given velocity and then exhausting the air to the atmosphere or the like, passing air at substantially the same elevated temperature from the one side of the path through the carpet to the other side of the path at a second position along the path at a velocity lower than the said given velocity and recirculating the air back to the one side of the path.
Claim 2
Independent Claim
118 words
A method of drying carpet and the like comprising: moving a length of carpet along its length through a predetermined path, passing air at an elevated temperature from one side of the path through the carpet to the other side of the path at a first position along the path at a given velocity and then exhausting the air to the atmosphere or the like, passing air at substantially the same elevated temperature from the one side of the path through the carpet to the other side of the path at a second position along the path at a velocity lower than the said given velocity and recirculating the air back to the one side of the path.
Claim 3
Independent Claim
90 words
A method of drying carpets and the like including the steps of passing wet carpet along its length through a housing along a rectilinear path, passing hot air from one side of the path through the carpet and recirculating the air from the other side of the carpet about the side edges of the carpet, heating the air after it has passed through the carpet prior to recirculating the air, and exhausting to the atmosphere that portion of the air which is passed through the carpet first entering the housing.
Claim 4
Independent Claim
90 words
A method of drying carpets and the like including the steps of passing wet carpet along its length through a housing along a rectilinear path, passing hot air from one side of the path through the carpet and recirculating the air from the other side of the carpet about the side edges of the carpet, heating the air after it has passed through the carpet prior to recirculating the air, and exhausting to the atmosphere that portion of the air which is passed through the carpet first entering the housing.
Claim 5
Dependent Claim
21 words
The method of claim 2 and wherein the step of heating the air comprises heating the air with a gas flame.
Claim 6
Dependent Claim
73 words
The method of claim 2 and wherein the step of passing the carpet along its length through a housing comprises moving the carpet laterally through the housing, and the step of passing hot air from one side of the path through the carpet comprises passing the hot air in a downward direction from above the path through the carpet, and the step of heating the air comprises heating the air below the path.
Claim 7
Dependent Claim
21 words
The method of claim 2 and wherein the step of heating the air comprises heating the air with an oil flame.
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |