US3705461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dryer damper and control mechanism
Assignee: Individual
•
Filing: 1970-09-24
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Granted: 1972-12-12
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Expires: 1990-09-24
Abstract
Abstract A dryer and damper control mechanism designed to dry articles by forced warm air including a plurality of internal baffles directing the flow of heated air through the dryer, a first set of dampers co-operating to guide the air downwardly through the articles being dried, a second pair of dampers to direct the heated air upwardly through the articles being dried and, controls to precisely regulate the temperature, humidity, and volume of the heated air through all portions of the apparatus.
Inventors
- 👤 Ralph C Parkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:04
CPC Classifications
F; F26; F26B; F26B21/00; F26B21/30; F26B21/20; F26B21/202; F26B21/208; F26B9/00; F26B9/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
252 words
In an article dryer of the type including an enclosing casing, an air heater operatively positioned within the casing and fan means directing a heated air stream through a drying chamber, the combination consisting of: A. a frame supporting the said casing, B. baffle means interiorly affixed to portions of the said frame, 1. said baffle means subdividing the interior of the dryer into a plurality of chambers, 2. a first portion of said baffle means defining an article drying chamber, said first portion of the baffle means including a forward drying chamber baffle and a rearward drying chamber baffle, each of said drying chamber baffles being provided with respective upper and lower openings; C. first damper means positioned in the first portion of the baffle means and journalled into the frame for rotative movement with respect thereto, 1. said first damper means having a first position and a second position, 2. said first damper means directing heated air upwardly through the drying chamber when in the said first position, 3. said first damper means directing heated air downwardly through the drying chamber when in the said second position, 4. said first damper means rotating within the said upper and lower openings, a. said first damper means including upper and lower forward dampers, and upper and lower rearward dampers, b. the said upper forward damper closing the forward baffle upper opening, and the lower forward damper opening the forward baffle lower opening when the first damper means assumes the said first position.
Claim 2
Dependent Claim
252 words
In an article dryer of the type including an enclosing casing, an air heater operatively positioned within the casing and fan means directing a heated air stream through a drying chamber, the combination consisting of: A. a frame supporting the said casing, B. baffle means interiorly affixed to portions of the said frame, 1. said baffle means subdividing the interior of the dryer into a plurality of chambers, 2. a first portion of said baffle means defining an article drying chamber, said first portion of the baffle means including a forward drying chamber baffle and a rearward drying chamber baffle, each of said drying chamber baffles being provided with respective upper and lower openings; C. first damper means positioned in the first portion of the baffle means and journalled into the frame for rotative movement with respect thereto, 1. said first damper means having a first position and a second position, 2. said first damper means directing heated air upwardly through the drying chamber when in the said first position, 3. said first damper means directing heated air downwardly through the drying chamber when in the said second position, 4. said first damper means rotating within the said upper and lower openings, a. said first damper means including upper and lower forward dampers, and upper and lower rearward dampers, b. the said upper forward damper closing the forward baffle upper opening, and the lower forward damper opening the forward baffle lower opening when the first damper means assumes the said first position.
Claim 3
Dependent Claim
69 words
a first portion of said baffle means defining an article drying chamber, said first portion of the baffle means including a forward drying chamber baffle and a rearward drying chamber baffle, each of said drying chamber baffles being provided with respective upper and lower openings; C. first damper means positioned in the first portion of the baffle means and journalled into the frame for rotative movement with respect thereto,
Claim 4
Dependent Claim
69 words
a first portion of said baffle means defining an article drying chamber, said first portion of the baffle means including a forward drying chamber baffle and a rearward drying chamber baffle, each of said drying chamber baffles being provided with respective upper and lower openings; C. first damper means positioned in the first portion of the baffle means and journalled into the frame for rotative movement with respect thereto,
Claim 5
Dependent Claim
18 words
said first damper means directing heated air upwardly through the drying chamber when in the said first position,
Claim 6
Dependent Claim
18 words
said first damper means directing heated air upwardly through the drying chamber when in the said first position,
Claim 7
Dependent Claim
37 words
The invention of claim 1 wherein the upper rearward damper opens the rearward baffle upper opening, and the lower rearward damper closes the rearward baffle lower opening when the first damper means assumes the said first position.
Claim 8
Dependent Claim
75 words
The invention of claim 1 wherein a second portion of the said baffle means defines a combustion chamber, said combustion chamber being positioned downstream of the drying chamber, said combustion chamber being equipped with a recirculation damper which is movable between an open position and a closed position, said second recirculation damper directing a portion of the heated air stream effluent from the drying chamber into the combustion chamber when in the said opEn position.
Claim 9
Dependent Claim
18 words
said first damper means directing heated air downwardly through the drying chamber when in the said second position,
Claim 10
Dependent Claim
18 words
said first damper means directing heated air downwardly through the drying chamber when in the said second position,
Claim 11
Dependent Claim
62 words
said first damper means rotating within the said upper and lower openings, a. said first damper means including upper and lower forward dampers, and upper and lower rearward dampers, b. the said upper forward damper closing the forward baffle upper opening, and the lower forward damper opening the forward baffle lower opening when the first damper means assumes the said first position.
Claim 12
Dependent Claim
62 words
said first damper means rotating within the said upper and lower openings, a. said first damper means including upper and lower forward dampers, and upper and lower rearward dampers, b. the said upper forward damper closing the forward baffle upper opening, and the lower forward damper opening the forward baffle lower opening when the first damper means assumes the said first position.
Claim 13
Dependent Claim
71 words
The invention of claim 3 wherein a third portion of said baffle means defines a heater chamber, said heater chamber being positioned downstream of the drying chamber, said heater chamber being equipped with a damper which is movable between an open position and a closed position, said damper directing a portion of the heated air stream effluent from the drying chamber into the heater chamber when in the said open position.
Claim 14
Dependent Claim
213 words
In an article dryer of the type including an enclosing casing, an air heater operatively positioned within the casing, and fan means directing a heated air stream through a drying chamber, the combination consisting of: a. a frame supporting the said casing, b. baffle means interiorly affixed to portions of the said frame, said baffle means subdividing the interior of the said dryer into a plurality of chambers, a first portion of said baffle means defining an article drying chamber, c. first damper means positioned in the first portion of the baffle means and journalled into the frame for rotative movement with respect thereto, said first damper means having a first position and a second position, said first damper means directing heated air upwardly through the drying chamber when in the said first position, said first damper means directing heated air downwardly through the drying chamber when in the said second position, d. second damper means positioned upstream from the first damper means, said second damper means recycling a portion of the heated air to the fan means, and e. third damper means positioned within the casing downstream from the drying chamber, said third damper means recycling a portion of the heated air effluent from the drying chamber to the said fan means.
Claim 15
Dependent Claim
213 words
In an article dryer of the type including an enclosing casing, an air heater operatively positioned within the casing, and fan means directing a heated air stream through a drying chamber, the combination consisting of: a. a frame supporting the said casing, b. baffle means interiorly affixed to portions of the said frame, said baffle means subdividing the interior of the said dryer into a plurality of chambers, a first portion of said baffle means defining an article drying chamber, c. first damper means positioned in the first portion of the baffle means and journalled into the frame for rotative movement with respect thereto, said first damper means having a first position and a second position, said first damper means directing heated air upwardly through the drying chamber when in the said first position, said first damper means directing heated air downwardly through the drying chamber when in the said second position, d. second damper means positioned upstream from the first damper means, said second damper means recycling a portion of the heated air to the fan means, and e. third damper means positioned within the casing downstream from the drying chamber, said third damper means recycling a portion of the heated air effluent from the drying chamber to the said fan 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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |