US4693013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared dryer
Assignee: A Monforts GmbH and Co
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Filing: 1986-06-19
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Granted: 1987-09-15
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Expires: 2006-06-19
Abstract
Abstract An infrared dryer includes an operating duct being at least as wide as a spread out textile fabric web passing through the duct for treatment, outer ducts disposed outside the operating duct, heating walls formed of adjacent wall elements substantially parallel to the surface of the fabric web separating said operating duct from the outer ducts, infrared radiators disposed on the wall elements, pivot axes about which the wall elements are pivotable through substantially 180° for moving the infrared radiators between the operating duct and the outer ducts, an air suction device, and a device for directing air into the air suction device from any of the ducts containing the infrared radiators at a given moment.
Inventors
- 👤 Manfred Pabst
- 👤 Peter Mevissen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:09
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B3/00; F26B3/28; F26B3/283
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
114 words
Infrared dryer, comprising an operating duct being at least as wide as a spread out textile fabric web passing through said duct for treatment, outer ducts disposed outside said operating duct, heating walls formed of adjacent wall elements substantially parallel to the surface of the fabric web separating said operating duct from said outer ducts, infrared radiators disposed on said wall elements, pivot axes about which said wall elements are pivotable through substantially 180° for moving said infrared radiators between said operating duct and said outer ducts, an air suction device, and means for directing air into said air suction device from any of said ducts containing said infrared radiators at a given moment.
Claim 2
Dependent Claim
114 words
Infrared dryer, comprising an operating duct being at least as wide as a spread out textile fabric web passing through said duct for treatment, outer ducts disposed outside said operating duct, heating walls formed of adjacent wall elements substantially parallel to the surface of the fabric web separating said operating duct from said outer ducts, infrared radiators disposed on said wall elements, pivot axes about which said wall elements are pivotable through substantially 180° for moving said infrared radiators between said operating duct and said outer ducts, an air suction device, and means for directing air into said air suction device from any of said ducts containing said infrared radiators at a given moment.
Claim 3
Dependent Claim
25 words
Infrared dryer according to claim 1, including means for pivoting said wall elements about said axes, said pivoting means being coupled to said directing means.
Claim 4
Dependent Claim
53 words
Infrared dryer according to claim 1, including means for pivoting said wall elements so that said infrared radiators are out of said operating duct when the fabric web stops moving and for pivoting said wall elements so that said infrared radiators are in said operating duct when the fabric web starts moving again.
Claim 5
Dependent Claim
53 words
Infrared dryer according to claim 2, including means for pivoting said wall elements so that said infrared radiators are out of said operating duct when the fabric web stops moving and for pivoting said wall elements so that said infrared radiators are in said operating duct when the fabric web starts moving again.
Claim 6
Dependent Claim
26 words
Infrared dryer according to claim 1, including means for maintaining said radiators at full power while facing into said operating duct and into said outer ducts.
References Cited (Backward Citations)
US4005135A
Cited
US4220865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-09-14 | 1991-03-16 | 1991-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-14 | 1995-03-16 | 1995-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-14 | 1999-03-16 | 1999-09-15 | $7700.00 | Window Closed / Lapsed |