Patent US3785566A successfully refreshed from Google Patents.
US3785566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing system for washing machine
Assignee: General Electric Co
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Filing: 1973-01-02
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Granted: 1974-01-15
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Expires: 1993-01-02
Abstract
Abstract An automatic washing machine of the type having a pump-motor arrangement delivering pressurized washing liquid to a spray arm. The pump outlet is provided with a seal member which expands into sealing engagement with the spray arm in response to the delivery of pressurized washing liquid therethrough. The pump-motor arrangement is removable from the bottom of the washing tub by moving it outwardly through the tub. The spray arm is mounted in axial alignment with the pump outlet by a support spanning the pump-motor arrangement.
Inventors
- 👤 T Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:43
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/4246; A47L15/14; A47L15/18; A47L15/22; A47L15/23; A47L15/4214; A47L15/4225
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
106 words
A dishwashing machine comprising a tub providing a wash chamber including a tub bottom having an opening therethrough; a pump-motor arrangement disposed at least partially below the tub bottom having a liquid outlet and a liquid inlet; means sealing the liquid inlet and outlet to the tub bottom; a spray arm and means rotatably supporting the spray arm on the tub independently of the liquid outlet at a location spaced from the rigid pump outlet; and seal means, between the liquid outlet and the spray arm, expansible in response to passage of liquid therethrough for sealably engaging the spray arm and providing a liquid passage therebetween.
Claim 2
Dependent Claim
106 words
A dishwashing machine comprising a tub providing a wash chamber including a tub bottom having an opening therethrough; a pump-motor arrangement disposed at least partially below the tub bottom having a liquid outlet and a liquid inlet; means sealing the liquid inlet and outlet to the tub bottom; a spray arm and means rotatably supporting the spray arm on the tub independently of the liquid outlet at a location spaced from the rigid pump outlet; and seal means, between the liquid outlet and the spray arm, expansible in response to passage of liquid therethrough for sealably engaging the spray arm and providing a liquid passage therebetween.
Claim 3
Dependent Claim
35 words
The washing machine of claim 1 wherein the seal means has one end attached to the liquid outlet and the other end spaced from the spray arm until passage of liquid past the seal means.
Claim 4
Dependent Claim
47 words
The washing machine of claim 1 wherein the seal means comprises a liquid conduit having one end attached to the liquid outlet, another end spaced from the spray arm until passage of liquid therethrough and an intermediate flexible section expansible upon passage of liquid through the conduit.
Claim 5
Dependent Claim
12 words
The washing machine of claim 3 wherein the pump outlet is rigid.
Claim 6
Dependent Claim
25 words
The washing machine of claim 1 wherein the spray arm support means comprises a rigid shell and means securing the shell to the tub bottom.
Claim 7
Dependent Claim
15 words
The washing machine of claim 5 wherein the shell is convex toward the wash chamber.
Claim 8
Dependent Claim
22 words
The washing machine of claim 5 wherein the lower edge of the shell is spaced above the trace of the tub bottom.
Claim 9
Dependent Claim
16 words
The washing machine of claim 5 wherein the rigid shell substantially covers the tub bottom opening.
References Cited (Backward Citations)
US3253784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |