US4270280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rice drying machine
Assignee: Individual
•
Filing: 1979-02-26
•
Granted: 1981-06-02
•
Expires: 1999-02-26
Abstract
Abstract Rice drying apparatus, a dryer directing heated air through the rice being dried, a control maintaining predetermined differential between the wet bulb and dry bulb temperature of the air used in drying, a modulating apparatus controlling the heat of the burner, the method of establishing a predetermined differential between wet bulb and dry bulb temperature of the air used in drying rice and the like, and subsequently increasing the differential as drying proceeds.
Inventors
- 👤 Jay L. McClaren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:06
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/12; F26B17/122; F26B17/02; F26B17/04; F26B17/26; F26B21/00; F26B21/30; F26B21/35; F26B3/00; F26B3/02; F26B3/06
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
133 words
A method drying rice or the like to be suitable for storing or further processing, comprising, confining a quantity of the rice in a chamber through which air may be passed, heating and pressurizing air at one side of the chamber and causing the heated air to once pass through the entire quantity of confined rice in the chamber, and sensing the wet bulb temperature of the air prior to passing the air through the chamber, and sensing the dry bulb temperature of the air prior to passing the air through the chamber and comparing the dry bulb temperature of the air with the wet bulb temperature of the air, and regulating the heating of the air to maintain a predetermined differential between the dry bulb and wet bulb temperatures of the air.
Claim 2
Independent Claim
133 words
A method drying rice or the like to be suitable for storing or further processing, comprising, confining a quantity of the rice in a chamber through which air may be passed, heating and pressurizing air at one side of the chamber and causing the heated air to once pass through the entire quantity of confined rice in the chamber, and sensing the wet bulb temperature of the air prior to passing the air through the chamber, and sensing the dry bulb temperature of the air prior to passing the air through the chamber and comparing the dry bulb temperature of the air with the wet bulb temperature of the air, and regulating the heating of the air to maintain a predetermined differential between the dry bulb and wet bulb temperatures of the air.
Claim 3
Dependent Claim
26 words
The drying method according to claim 1 and the differential having a magnitude significantly in excess of the differential required to maintain an equilibrium moisture condition.
Claim 4
Dependent Claim
37 words
The drying method according to claim 1 and progressively increasing the differential between wet bulb and dry bulb temperatures of the air as drying of the rice continues to remove additional quantities of moisture from the material.
Claim 5
Dependent Claim
20 words
The drying method according to claim 1 wherein the rice is confined in stationary condition in the chamber during drying.
Claim 6
Dependent Claim
20 words
The drying method according to claim 3 wherein the rice is confined in stationary condition in the chamber during drying.
Claim 7
Dependent Claim
19 words
The drying method according to claim 1 and progressively moving the rice through the chamber during the drying thereof.
Claim 8
Dependent Claim
19 words
The drying method according to claim 3 and progressively moving the rice through the chamber during the drying thereof.
Claim 9
Dependent Claim
28 words
The drying method according to claim 7 wherein, as the rice is progressively moved through the chamber, drying air of progressively increased temperatures is passed through the rice.
Claim 10
Dependent Claim
24 words
The drying method according to claim 4 wherein the differential between dry bulb and wet bulb temperatures is progressively increased as drying is continued.
Claim 11
Dependent Claim
32 words
The drying method according to claim 4 wherein the rice is confined in an upright column of finite thickness, and the air is directed generally horizontally through the upright column of rice.
Claim 12
Dependent Claim
39 words
The drying method according to claim 4 wherein the rice is disposed in a substantially horizontal bed of finite thickness and the air is caused to pass through the bed in a direction substantially transversely of the horizontal bed.
Claim 13
Dependent Claim
35 words
The drying method according to claim 6 wherein the rice is confined in an upright column of finite thickness in the chamber and the air is directed generally horizontally through the upright column of rice.
Claim 14
Dependent Claim
42 words
The drying method according to claim 6 wherein the rice is disposed in a substantially horizontal bed of finite thickness within the chamber and the air is caused to pass through the bed in a direction substantially transversely of the horizontal bed.
Claim 15
Dependent Claim
23 words
The drying method according to claim 12 wherein the rice is moved downwardly in the column through the chamber under influence of gravity.
Claim 16
Dependent Claim
20 words
The drying method according to claim 13 wherein the rice is carried substantially horizontally in a layer in the chamber.
Claim 17
Independent Claim
126 words
A method of drying rice to be suitable for storing or further processing, comprising confining a quantity of rice in a chamber through which air may be passed, heating and pressurizing air at one side of the chamber and causing the heated air to pass through the quantity of confined rice in the chamber, sensing the wet bulb temperature of the air prior to passing the air through the rice, and sensing the dry bulb temperature of the air prior to passing the air through the rice and comparing the dry bulb temperature of the air with the wet bulb temperature of the air, and regulating the heating of the air to maintain a predetermined differential between dry bulb and wet bulb temperatures of the air.
Claim 18
Independent Claim
126 words
A method of drying rice to be suitable for storing or further processing, comprising confining a quantity of rice in a chamber through which air may be passed, heating and pressurizing air at one side of the chamber and causing the heated air to pass through the quantity of confined rice in the chamber, sensing the wet bulb temperature of the air prior to passing the air through the rice, and sensing the dry bulb temperature of the air prior to passing the air through the rice and comparing the dry bulb temperature of the air with the wet bulb temperature of the air, and regulating the heating of the air to maintain a predetermined differential between dry bulb and wet bulb temperatures of the air.
Claim 19
Dependent Claim
42 words
The drying method according to claim 9 and the differential having a magnitude significantly in excess of the differential required to maintain an equilibrium moisture condition in the rice, which moisture condition is suitable to permit storing of the rice without spoilage.
Claim 20
Dependent Claim
22 words
The drying method according to claim 1 and including drawing the air for heating and pressurizing from the adjacent ambient atmospheric conditions.
Claim 21
Dependent Claim
32 words
The drying method according to claim 18 and including returning the air which has been caused to pass through the quantity of confined material in the chamber, into the adjacent ambient atmosphere.
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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) | 1984-06-01 | 1984-12-01 | 1985-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-01 | 1988-12-01 | 1989-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-01 | 1992-12-01 | 1993-06-02 | $7700.00 | Window Closed / Lapsed |