US3964646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric sieve
Assignee: LEC (A/K/A LEC INC) KK
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Filing: 1974-12-30
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Granted: 1976-06-22
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Expires: 1994-12-30
Abstract
Abstract A casing, in which a powdered substance to be sieved is fed, is provided with a handle portion containing a battery therein. A supporting arm extends from the inner wall of the casing and is connected with a vibratable motor cover at the center portion of the casing. A motor is mounted within the motor cover, and a weighted member is eccentrically connected to the output shaft thereof. The meshed member of the sieve is connected to the motor cover.
Inventors
- 👤 Toshio Yazawa
- 👤 Fumi Yazawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:35
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/02; A; A47; A47J; A47J43/00; A47J43/22; B07B1/28; B07B1/38; Y; Y10; Y10S; Y10S366/00; Y10S366/601
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
182 words
An electric sieve comprising: a casing adapted to contain fine particles or a powdered substance to be sifted, a handle portion connected to said casing adapted to be grasped by one hand of an operator, for holding the sieve, a supporting arm extending from the inner wall of said casing to the center portion thereof, a motor cover connected to said supporting arm at the center portion of said casing, an electric motor secured within said motor cover and having an output shaft extending downwardly therefrom, a weight member eccentrically connected to said output shaft of said motor, a meshed member disposed within said casing adjacent the lower end portion thereof, means for mounting said meshed member for vibration by rotation of said output shaft upon actuation of said motor, means for supplying electric current to said motor for actuation thereof, inner and outer annular flange members at the lower part of said casing and spaced apart to provide an annular recess therebetween, and a vertically extending annular flange around the periphery of said meshed member partially received within said annular recess.
Claim 2
Dependent Claim
182 words
An electric sieve comprising: a casing adapted to contain fine particles or a powdered substance to be sifted, a handle portion connected to said casing adapted to be grasped by one hand of an operator, for holding the sieve, a supporting arm extending from the inner wall of said casing to the center portion thereof, a motor cover connected to said supporting arm at the center portion of said casing, an electric motor secured within said motor cover and having an output shaft extending downwardly therefrom, a weight member eccentrically connected to said output shaft of said motor, a meshed member disposed within said casing adjacent the lower end portion thereof, means for mounting said meshed member for vibration by rotation of said output shaft upon actuation of said motor, means for supplying electric current to said motor for actuation thereof, inner and outer annular flange members at the lower part of said casing and spaced apart to provide an annular recess therebetween, and a vertically extending annular flange around the periphery of said meshed member partially received within said annular recess.
Claim 3
Dependent Claim
38 words
An electric sieve as defined in claim 1, wherein said electric current supply means comprises a battery contained in said handle portion and a switch provided on said handle portion for electrically connecting said battery to said motor.
Claim 4
Dependent Claim
33 words
An electric sieve as defined in claim 1, wherein said motor cover has an integral upper bridge portion through which a screw is threaded to connect said motor cover to said supporting arm.
Claim 5
Dependent Claim
55 words
An electric sieve as defined in claim 1, wherein said supporting arm has a small housing at the lower center part of said casing, and said motor cover is disposed within said housing to provide an annular space between the inner peripheral wall of said housing and the outer peripheral wall of said motor cover.
Claim 6
Dependent Claim
16 words
An electric sieve as defined in claim 1, wherein said weight member is an eccentric disc.
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) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |