Patent US2868491A successfully refreshed from Google Patents.
US3870910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor pump unit
Assignee: Robert Bosch GmbH
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Filing: 1973-11-30
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Granted: 1975-03-11
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Expires: 1993-11-30
Abstract
Abstract A pump is mounted in a housing, together with a drive which comprises an electromotor including a unitary mounting element of sintered material composed of a sleeve-shaped body formed with mounting portions which mount the body for rotation and with a coupling portionwhich is coupled with the pump for driving the same. A motor armature is mounted on the sleeve-shaped body for rotation with the same, and a collector is also mounted on the body.
Inventors
- 👤 Paul Fussner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:50
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M37/08; H; H02; H02K; H02K1/00; H02K1/06; H02K1/22; H02K1/26; H02K5/00; H02K5/04; H02K5/12; H02K5/16; H02K5/167; H02K5/1677; H02K7/00; H02K7/14; F04; F04C; F04C2230/00; F04C2230/20; F04C2230/22
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
101 words
In a pump unit, particularly for liquid fuels, a combination comprising a housing; a pump in said housing; an electromotor located in said housing for driving said pump and including a unitary mounting element of sintered material composed of a sleeve-shaped body integrally provided with a plurality of spokes projecting outwardly therefrom, and with a coupling portion which is coupled with said pump for driving the same, a motor armature comprising said spokes and armature windings mounted on said spokes, and a collector mounted on said sleeve-shaped body; and means mounting said sleeve-shaped body and the elements mounted thereon for rotation.
Claim 2
Dependent Claim
101 words
In a pump unit, particularly for liquid fuels, a combination comprising a housing; a pump in said housing; an electromotor located in said housing for driving said pump and including a unitary mounting element of sintered material composed of a sleeve-shaped body integrally provided with a plurality of spokes projecting outwardly therefrom, and with a coupling portion which is coupled with said pump for driving the same, a motor armature comprising said spokes and armature windings mounted on said spokes, and a collector mounted on said sleeve-shaped body; and means mounting said sleeve-shaped body and the elements mounted thereon for rotation.
Claim 3
Dependent Claim
101 words
In a pump unit, particularly for liquid fuels, a combination comprising a housing; a pump in said housing; an electromotor located in said housing for driving said pump and including a unitary mounting element of sintered material composed of a sleeve-shaped body integrally provided with a plurality of spokes projecting outwardly therefrom, and with a coupling portion which is coupled with said pump for driving the same, a motor armature comprising said spokes and armature windings mounted on said spokes, and a collector mounted on said sleeve-shaped body; and means mounting said sleeve-shaped body and the elements mounted thereon for rotation.
Claim 4
Dependent Claim
101 words
In a pump unit, particularly for liquid fuels, a combination comprising a housing; a pump in said housing; an electromotor located in said housing for driving said pump and including a unitary mounting element of sintered material composed of a sleeve-shaped body integrally provided with a plurality of spokes projecting outwardly therefrom, and with a coupling portion which is coupled with said pump for driving the same, a motor armature comprising said spokes and armature windings mounted on said spokes, and a collector mounted on said sleeve-shaped body; and means mounting said sleeve-shaped body and the elements mounted thereon for rotation.
Claim 5
Dependent Claim
32 words
A combination as defined in claim 1, wherein said means mounting said sleeve-shaped body for rotation comprises a shaft extending through said sleeve-shaped body and mounted on opposite ends in said housing.
Claim 6
Dependent Claim
17 words
A combination as defined in claim 1, and an electrically insulating layer surrounding and protecting said windings.
Claim 7
Dependent Claim
15 words
A combination as defined in claim 3, wherein said spokes are of T-shaped cross section.
Claim 8
Dependent Claim
27 words
A combination as defined in claim 1, said sleeve-shaped body having two spaced end regions, and said coupling portion being provided at one of said end regions.
Claim 9
Dependent Claim
25 words
A combination as defined in claim 5, and further comprising a layer of insulating material surrounding said collector and said armature, including said armature windings.
Claim 10
Dependent Claim
13 words
A combination as defined in claim 6, wherein said insulating material is polyamide.
Claim 11
Dependent Claim
25 words
A combination as defined in claim 3, wherein said sleeve-shaped body has a thickened portion in the region where it is formed with said spokes.
Claim 12
Dependent Claim
30 words
A combination as defined in claim 1, said coupling portion being composed of a plurality of relatively short outwardly extending projections provided at one axial end of said sleeve-shaped body.
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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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |