Patent US1302540A successfully refreshed from Google Patents.
Patent US4194798A successfully refreshed from Google Patents.
US4194798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side channel compressor with at least one bearing arranged at the housing cover of the side channel compressor
Assignee: Siemens AG
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Filing: 1978-03-21
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Granted: 1980-03-25
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Expires: 1998-03-21
Abstract
Abstract In a side channel compressor having a housing cover and a bearing arranged at the housing cover, the improvement wherein the compressor is further provided with a separate bearing cap which is fastened to the housing cover and within which is disposed the bearing and with a centering rim on the cover for aligning the cap.
Inventors
- 👤 Siegfried Schonwald
- 👤 Rudolf Schoning
- 👤 Eberhard Breyer
- 👤 Gert Hecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:47
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/05; F04D29/056; F04D29/059; F04D23/00; F04D23/008
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
150 words
In a side channel ring compressor having a housing cover and a ball bearing arranged at said housing cover, the improvement comprising: (a) a separate bearing cap, said bearing cap having a bore therein, said bearing arranged wholly within said bore such that the radial periphery of said bearing contacts only said bore, said bearing cap attached to said cover at a plurality of circumferentially spaced fastening locations; (b) a centering rim on said housing cover; and (c) a layer of insulation inserted between said cover and said bearing cup at said fastening locations, said layer being formed of a material which is a poor heat conductor so as to inhibit heat transfer from said cover to said cap, whereby the transfer of heat from said cover to said bearing will be minimized thereby avoiding a substantial temperature rise which could have a detrimental effect on lubricant for said bearing.
Claim 2
Dependent Claim
150 words
In a side channel ring compressor having a housing cover and a ball bearing arranged at said housing cover, the improvement comprising: (a) a separate bearing cap, said bearing cap having a bore therein, said bearing arranged wholly within said bore such that the radial periphery of said bearing contacts only said bore, said bearing cap attached to said cover at a plurality of circumferentially spaced fastening locations; (b) a centering rim on said housing cover; and (c) a layer of insulation inserted between said cover and said bearing cup at said fastening locations, said layer being formed of a material which is a poor heat conductor so as to inhibit heat transfer from said cover to said cap, whereby the transfer of heat from said cover to said bearing will be minimized thereby avoiding a substantial temperature rise which could have a detrimental effect on lubricant for said bearing.
Claim 3
Dependent Claim
22 words
The improvement according to claim 1 wherein said centering rim has a diameter equal to the outer diameter of said ball bearing.
Claim 4
Dependent Claim
33 words
The improvement according to claim 2 wherein said ball bearing has an outer race and wherein the radial thickness of said centering rim is smaller than the radial thickness of said outer race.
Claim 5
Dependent Claim
17 words
The improvement according to claim 2 wherein said centering rim has cutouts extending in the axial direction.
Claim 6
Dependent Claim
43 words
The improvement according to claim 1 wherein said bearing cap is attached at said plurality of fastening locations by means of bolts and wherein said layer of insulation comprises insulating washers inserted between said cover and said bearing cap at said fastening locations.
References Cited (Backward Citations)
US3694101A
Cited
DE2228326A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-25 | 1983-09-24 | 1984-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-25 | 1987-09-24 | 1988-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-25 | 1991-09-24 | 1992-03-25 | $7700.00 | Window Closed / Lapsed |