US4044626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balancing ring of centrifugal extractor
Assignee: Sanyo Electric Co Ltd
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Filing: 1976-04-14
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Granted: 1977-08-30
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Expires: 1996-04-14
Abstract
Abstract This invention relates to a balancing ring for a centrifugal extractor for a washing machine which consists of a hollow ring which contains a balancing liquid. The hollow ring is attached to the side wall of a spin basket and is provided with a plurality of partition boards attached alternately to the upper and lower walls of the ring respectively.
Inventors
- 👤 Gentaro Hayashi
- 👤 Kenji Yamamoto
- 👤 Yasakao Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:00
CPC Classifications
D; D06; D06F; D06F37/00; D06F37/20; D06F37/24; D06F37/245; F; F16; F16F; F16F15/00; F16F15/32; F16F15/36; F16F15/366
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
78 words
The combination comprising a spin basket for a cetrifugal type washing machine, said basket having a bottom and a side wall, a hollow balancing ring adapted for containing a liquid attached to said basket side wall, said balancing ring having top bottom and side walls, and a plurality of partition members projecting from said ring top and bottom walls extending only partially into the interior of the ring adapted to modify the flow of liquid in the ring.
Claim 2
Dependent Claim
78 words
The combination comprising a spin basket for a cetrifugal type washing machine, said basket having a bottom and a side wall, a hollow balancing ring adapted for containing a liquid attached to said basket side wall, said balancing ring having top bottom and side walls, and a plurality of partition members projecting from said ring top and bottom walls extending only partially into the interior of the ring adapted to modify the flow of liquid in the ring.
Claim 3
Dependent Claim
21 words
The combination of claim 1 wherein said partition members alternately project from said bottom and top wall of said balancing ring.
Claim 4
Dependent Claim
28 words
The combination of claim 1 wherein the partition members projecting from the top wall of the balancing ring also extend to the outside wall of the balancing ring.
Claim 5
Dependent Claim
24 words
The combination of claim 1 wherein the partition members projecting from the bottom wall are spaced from both side walls of the balancing ring.
Claim 6
Dependent Claim
23 words
The combination of claim 1 wherein said balancing ring is formed of upper and lower sections of plastic material which are welded together.
Claim 7
Dependent Claim
22 words
The combination of claim 1 further comprising a liquid pouring aperture formed in said balancing ring, and a plug sealing said aperture.
Claim 8
Dependent Claim
13 words
The combination of claim 6 further comprising pressure relief means on said plug.
References Cited (Backward Citations)
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Cited
US2549756A
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US2652710A
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US2836083A
Cited
US2836301A
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US3610069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |