Patent US3987556A successfully refreshed from Google Patents.
US3987556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for drying hides and skins
Assignee: Individual
•
Filing: 1973-04-17
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Granted: 1976-10-26
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Expires: 1993-04-17
Abstract
Abstract The present invention relates to a novel process for drying articles with low dimensional stability such as animal skins and hides and to apparatus for carrying it out. The drier designed to carry out the above-mentioned process comprises in combination: At least one support on which the articles to be dried are placed; At least one chamber provided with irradiation means; At least one chamber of known type comprising means for circulating air, the said chamber having means in its lower portion for extracting damp air; and Means for conveying the support through the above-mentioned chambers.
Inventors
- 👤 Olivier Tissot
- 👤 Irenee Catalo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:57
CPC Classifications
F; F26; F26B; F26B15/00; F26B15/10; F26B15/12; F26B15/18; C; C14; C14B; C14B1/00; C14B1/26; F26B15/14; F26B3/00; F26B3/28; F26B3/283; F26B5/00; F26B5/04; F26B5/06; C14B2700/00; C14B2700/07
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
142 words
A drier for drying articles of low dimensional stability such as hides and skins by heating the articles while supporting them upon their epidermal surfaces and then subjecting them to hot air currents of predetermined humidity, comprising: at least one non-porous support on which the articles to be dried are arranged on their epidermal surfaces; means for heating said support prior to arrangement of the articles thereon; at least one impingement chamber having means for passing a current of pressurized air thereinto and directing the air upon the unsupported surfaces of the articles at a high flow-rate, other means for heating this current of air, a casing situated at the base of said chamber below the support to extract the damp air contained in the chamber, and an outlet tunnel from the chamber; and means for conveying the support into the chamber.
Claim 2
Dependent Claim
142 words
A drier for drying articles of low dimensional stability such as hides and skins by heating the articles while supporting them upon their epidermal surfaces and then subjecting them to hot air currents of predetermined humidity, comprising: at least one non-porous support on which the articles to be dried are arranged on their epidermal surfaces; means for heating said support prior to arrangement of the articles thereon; at least one impingement chamber having means for passing a current of pressurized air thereinto and directing the air upon the unsupported surfaces of the articles at a high flow-rate, other means for heating this current of air, a casing situated at the base of said chamber below the support to extract the damp air contained in the chamber, and an outlet tunnel from the chamber; and means for conveying the support into the chamber.
Claim 3
Dependent Claim
32 words
A drier as described in claim 1, which comprises a plurality of supports in the form of plates rigidly connected to a funicular member which passes through the chambers at variable speed.
Claim 4
Independent Claim
112 words
A device for drying articles of low dimensional stability such as hides and skins by heating the articles while supporting them upon their epidermal surfaces and then subjecting them alternately to irradiation and to hot air currents of predetermined humidity, comprising: at least one pre-heated support on which the articles to be dried are placed on their epidermal surfaces; at least one chamber provided with irradiation means; at least another chamber having means for circulating hot air therethrough and impinging the air on the unsupported surfaces of the articles, said chamber having means in its lower portion for extracting damp air; and means for conveying the support through the above mentioned chambers.
Claim 5
Independent Claim
112 words
A device for drying articles of low dimensional stability such as hides and skins by heating the articles while supporting them upon their epidermal surfaces and then subjecting them alternately to irradiation and to hot air currents of predetermined humidity, comprising: at least one pre-heated support on which the articles to be dried are placed on their epidermal surfaces; at least one chamber provided with irradiation means; at least another chamber having means for circulating hot air therethrough and impinging the air on the unsupported surfaces of the articles, said chamber having means in its lower portion for extracting damp air; and means for conveying the support through the above mentioned chambers.
Claim 6
Dependent Claim
21 words
A drier as set forth in claim 3 wherein the support consists of an endless conveyor belt of polished stainless steel.
Claim 7
Dependent Claim
21 words
A drier as described in claim 3 wherein the chamber in which the air is circulated is of the impingement type.
Claim 8
Dependent Claim
21 words
A drier as described in claim 3 wherein the chamber in which the air is circulated is of a reduced-pressure type.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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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) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |