US3626136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency heating apparatus
Assignee: Sanyo Electric Co Ltd
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Filing: 1970-05-11
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Granted: 1971-12-07
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Expires: 1990-05-11
Abstract
Abstract A high-frequency heating apparatus includes a supply source for supplying high-frequency energy into a conductive heating chamber. Two pairs of stirring blades mounted on a rotary shaft inside the chamber are positioned relatively to the supply source so that a substantial portion of the radiated energy is intercepted and reflected by the blades to afford more uniform heating of materials within the chamber. The generally elongated stirring blades are mounted tangentially of the circumference of an imaginary circle lying in a plane normal to the rotary shaft and concentric with the shaft axis. The blades of each pair lie in parallel planes inclined at an angle of 45* with respect to the plane of the imaginary circle and thus are oppositely inclined with respect to the axis of the rotary shaft. As the blades are rotated, high-frequency energy from the source, in a first mode, is reflected from the upper surface of one of the blades of the pair in a centrifugal direction and, in a second mode, from the upper surface of the other blade in a centripital direction toward the first blade of the pair and reflected downwardly from the lower surface of the latter. Continuous rotation of the shaft effects a continuously alternating sequence of the modes thus established by each pair of blades.
Inventors
- 👤 Michio Funahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:19
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/74; Y; Y10; Y10S; Y10S416/00; Y10S416/03
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
165 words
A device for use in a high-frequency heating apparatus having an enclosure made of conductive material into which highfrequency energy is supplied for heating material placed within the enclosure comprising: a pair of blades of conductive material, means for mounting said blades within said enclosure for rotation about a predetermined axis of rotation, said blades being rotatable in succession into position to intercept a portion of the high-frequenCy energy supplied into the enclosure, one of said blades being positioned by said mounting means to direct high-frequency energy intercepted thereby in a centrifugal direction with respect to said axis of rotation, the other of said pair of blades being positioned by said mounting means to direct high-frequency energy intercepted thereby in the centripital direction with respect to said axis of rotation, and said one of said blades furthermore is positioned for intercepting energy directed centripitally from said other of said blades and directing a portion of said centripitally directed energy parallel to the axis of rotation.
Claim 2
Independent Claim
165 words
A device for use in a high-frequency heating apparatus having an enclosure made of conductive material into which highfrequency energy is supplied for heating material placed within the enclosure comprising: a pair of blades of conductive material, means for mounting said blades within said enclosure for rotation about a predetermined axis of rotation, said blades being rotatable in succession into position to intercept a portion of the high-frequenCy energy supplied into the enclosure, one of said blades being positioned by said mounting means to direct high-frequency energy intercepted thereby in a centrifugal direction with respect to said axis of rotation, the other of said pair of blades being positioned by said mounting means to direct high-frequency energy intercepted thereby in the centripital direction with respect to said axis of rotation, and said one of said blades furthermore is positioned for intercepting energy directed centripitally from said other of said blades and directing a portion of said centripitally directed energy parallel to the axis of rotation.
Claim 3
Dependent Claim
70 words
A device as recited in claim 1 wherein said blades of said pair thereof are mounted at diametrically opposite positions relative to the axis of rotation and tangentially of the circumference of an imaginary circle concentric with the axis of rotation and in a plane normal thereto, and said pair of blades are oppositely inclined with respect to the plane of the imaginary circle relative to the axis of rotation.
Claim 4
Dependent Claim
29 words
The device as recited in claim 2 wherein said blades lie in substantially parallel planes inclined to the plane of the imaginary circle at an angle of approximately 45*.
Claim 5
Dependent Claim
32 words
A device as recited in claim 2 wherein said blades define planes intersecting the axis of rotation on opposite sides of the plane of the imaginary circle at angles of approximately 45*.
Claim 6
Dependent Claim
31 words
A device as recited in claim 2 wherein said blades are each of elongated configuration and are positioned along a given dimension thereof tangentially of the circumference of the imaginary circle.
Claim 7
Dependent Claim
47 words
A device as recited in claim 1 wherein there is further provided at least one additional pair of said blades mounted on said rotary shaft with the blades of each pair diametrically disposed about said shaft and with said pairs of blades equiangularly disposed about said shaft.
Claim 8
Dependent Claim
161 words
A high-frequency heating apparatus comprising: an enclosure made of a conductive material, means for supplying high-frequency energy to said enclosure, means for placing a heating load within said enclosure to be heated by the high-frequency energy, a movable device and means including a rotary shaft to which said device is mounted for rotating said device within said enclosure, said movable device includes a pair of conductive blades rotatable in succession into position to intercept a portion of high-frequency energy supplied to the enclosure, one of said pair of blades directing high-frequency energy intercepted thereby in a centrifugal direction with respect to said rotary shaft and the other of said pair of blades directing high-frequency intercepted thereby in a centripital direction with respect to the rotary shaft, and said one of said blades furthermore is positioned for intercepting energy directed centripitally from said other of said blades and directing a portion of said centripitally directed energy parallel to the axis of rotation.
Claim 9
Dependent Claim
161 words
A high-frequency heating apparatus comprising: an enclosure made of a conductive material, means for supplying high-frequency energy to said enclosure, means for placing a heating load within said enclosure to be heated by the high-frequency energy, a movable device and means including a rotary shaft to which said device is mounted for rotating said device within said enclosure, said movable device includes a pair of conductive blades rotatable in succession into position to intercept a portion of high-frequency energy supplied to the enclosure, one of said pair of blades directing high-frequency energy intercepted thereby in a centrifugal direction with respect to said rotary shaft and the other of said pair of blades directing high-frequency intercepted thereby in a centripital direction with respect to the rotary shaft, and said one of said blades furthermore is positioned for intercepting energy directed centripitally from said other of said blades and directing a portion of said centripitally directed energy parallel to the axis of rotation.
Claim 10
Dependent Claim
69 words
Apparatus as recited in claim 7 wherein said blades of said pair thereof are mounted at diametrically opposite positions relative to said rotary shaft and tangentially of the circumference of an imaginary circle concentric with the axis of rotation of said shaft and in a plane normal thereto, and said pair of blades are oppositely inclined with respect to the plane of the imaginary circle and axis of rotation.
Claim 11
Dependent Claim
35 words
Apparatus as recited in claim 8 wherein said blades are mounted by said mounting means to lie in substantially parallel planes inclined to the plane of the imaginary circle at an angle of approximately 45*.
Claim 12
Dependent Claim
35 words
Apparatus as recited in claim 8 wherein said blades define planes intersecting the axis of rotation of said rotary shaft on opposite sides of the plane of the imaginary circle at angles of approximately 45*.
Claim 13
Dependent Claim
24 words
Apparatus as recited in claim 8 wherein said blades are positioned above a given dimension thereof tangentially of the cirCumference of the imaginary circle.
Claim 14
Dependent Claim
47 words
Apparatus as recited in claim 7 wherein said movable device further includes at least one additional pair of said blades mounted on said rotary shaft with the blades of each pair diametrically disposed about said shaft and with said pairs of blades equiangularly disposed about said shaft.
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |