US4410280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric food preparation apparatus
Assignee: Panasonic Holdings Corp
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Filing: 1981-07-01
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Granted: 1983-10-18
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Expires: 2001-07-01
Abstract
Abstract The present invention relates to an electric food preparation apparatus such as a food processor, juicer or the like. An annular cavity is formed in the fitting portion between the container body and the container lid. The annular cavity is communicated with the interior of the container body through communication passages. Fluid guiding members are disposed at the upstream side of respective communication passages to generate negative pressure in the respective communication passages. The liquid leaking outside is induced back into the container body through the communication passages so that external leaking of the liquid is prevented.
Inventors
- 👤 Terukazu Yamauchi
- 👤 Hirofumi Nakakura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:54
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/45; A; A47; A47J; A47J43/00; A47J43/04; A47J43/046; B01F27/00; B01F27/80; B01F27/808; B01F35/30; B01F35/32; B01F35/321; B01F35/3213
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
163 words
An electric food preparation apparatus comprising: an electric motor; a main body containing said electric motor; a container body mounted on said main body; a rotating member adapted to be rotatively driven in said container body by said electric motor; and a container lid adapted to be mounted on said container body to cover the upper opening of said container body, said container lid being so structured as to fit its opening brim to the inner periphery of said container body in such a manner that an annular cavity is formed in the fitting portion between said container body and said container lid, the annular cavity being in communication with the interior of the container body through communication passages; said apparatus further comprising fluid guiding members disposed at the upstream side of each communication passage and adjacent to each communication passage as viewed in the direction of rotation of said rotating member, so as to generate a negative pressure in each communication passage.
Claim 2
Dependent Claim
163 words
An electric food preparation apparatus comprising: an electric motor; a main body containing said electric motor; a container body mounted on said main body; a rotating member adapted to be rotatively driven in said container body by said electric motor; and a container lid adapted to be mounted on said container body to cover the upper opening of said container body, said container lid being so structured as to fit its opening brim to the inner periphery of said container body in such a manner that an annular cavity is formed in the fitting portion between said container body and said container lid, the annular cavity being in communication with the interior of the container body through communication passages; said apparatus further comprising fluid guiding members disposed at the upstream side of each communication passage and adjacent to each communication passage as viewed in the direction of rotation of said rotating member, so as to generate a negative pressure in each communication passage.
Claim 3
Dependent Claim
40 words
An apparatus according to claim 1, wherein each communication passage includes a hole formed in the opening brim of said container lid and opened at its lower end, and said fluid guiding member is formed to extend along said hole.
Claim 4
Dependent Claim
27 words
An apparatus according to claim 2, wherein said fluid guiding member has a radial height equal to or greater than the opening breadth of said communication passage.
Claim 5
Dependent Claim
22 words
An apparatus according to claim 2, wherein said fluid guiding member is constituted by an inclined plate inclined toward said communication passage.
Claim 6
Dependent Claim
28 words
An apparatus according to claim 2, wherein the bottom of said annular cavity is recessed at portions opposing said communication passages from the ordinary level of the bottom.
Claim 7
Dependent Claim
41 words
An apparatus according to claim 1, wherein said fluid guiding member is formed on the inner peripheral surface of said container lid so as to extend vertically from the opening edge of said container lid to the ceiling of the latter.
Claim 8
Dependent Claim
47 words
An apparatus according to claim 6, wherein the radial height of the portion of said fluid guiding member closer to the ceiling of said container lid is larger than that of the portion of said fluid guiding member closer to the lower end of said container lid.
Claim 9
Dependent Claim
23 words
An apparatus according to claim 1, wherein said communication passage has an opening oriented in the same direction as said rotating member rotates.
Claim 10
Dependent Claim
30 words
An apparatus according to claim 1, wherein the upstream side of said fluid guiding member as viewed in the direction of rotation of said rotating member, has an inclined surface.
Claim 11
Dependent Claim
38 words
An apparatus according to claim 9, wherein the downstream side of said fluid guiding member as viewed in the direction of rotation of said rotating member, is formed to extend radially toward the center of said container body.
Claim 12
Dependent Claim
24 words
An apparatus according to claim 1, wherein said container lid has an inner diameter equal to or greater than that of said container body.
Claim 13
Dependent Claim
17 words
An apparatus according to claim 1, wherein said communication passage includes a circular or an elliptic hole.
Claim 14
Dependent Claim
39 words
An apparatus according to claim 1, wherein the opening brim of said container body is partially recessed to form said communication passages and wherein said fluid guiding members are formed of the inner peripheral surface of said container body.
Claim 15
Dependent Claim
146 words
An electric food preparation apparatus comprising: an electric motor; a main body containing said electric motor; a container body mounted on said main body; a rotating member adapted to be rotatively driven in said container body by said electric motor, and a container lid adapted to be mounted on said container body to cover the upper opening of said container body, said container lid being so structured as to fit its opening brim to the inner periphery of said container body in such a manner that an annular cavity is formed in the fitting portion between said container body and said container lid, the opening brim of said lid is partially projected outwardly to form recesses, and communication passages are formed in said opening brim of said container lid at upstream sides of said recesses as viewed in the direction of rotation of said rotating member.
Claim 16
Dependent Claim
146 words
An electric food preparation apparatus comprising: an electric motor; a main body containing said electric motor; a container body mounted on said main body; a rotating member adapted to be rotatively driven in said container body by said electric motor, and a container lid adapted to be mounted on said container body to cover the upper opening of said container body, said container lid being so structured as to fit its opening brim to the inner periphery of said container body in such a manner that an annular cavity is formed in the fitting portion between said container body and said container lid, the opening brim of said lid is partially projected outwardly to form recesses, and communication passages are formed in said opening brim of said container lid at upstream sides of said recesses as viewed in the direction of rotation of said rotating member.
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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) | 1986-10-17 | 1987-04-18 | 1987-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-17 | 1991-04-18 | 1991-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-17 | 1995-04-18 | 1995-10-18 | $7700.00 | Window Closed / Lapsed |