Patent US3870440A successfully refreshed from Google Patents.
US3870440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed compressor suction tube assembly
Assignee: General Electric Co
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Filing: 1974-03-11
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Granted: 1975-03-11
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Expires: 1994-03-11
Abstract
Abstract A hermetic compressor unit comprising a hermetic casing containing a compressor including a cylindrical block having an arcuate surface engaging the inner surface of the casing and a suction tube assembly for connecting the compressor to a refrigeration system. The suction tube assembly comprises a steel tubular connector having a reduced end portion providing a flange. A ring member having a higher ductility than steel is located on the steel connector flange. A steel tubular fitting includes an end portion press fit into a suction passage in the block and a shoulder portion engaging and compressing the ring member to mechanically seal the compressor casing and suction tube assembly to the compressor.
Inventors
- 👤 Jr Edward A Zuercher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:03
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/12; F04B39/123; F16; F16L; F16L13/00; F04C; F04C2240/00; F04C2240/80; F04C2240/806; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A hermetic compressor unit comprising: a casing including a side wall; a compressor including a cylinder block positioned in said casing and having an outer surface adjacent the inner surface of said casing wall; a suction passage in said block opening into said outer surface; said casing having an opening aligned with and larger than said passage; a suction tube connector having a reduced end portion extending into said opening in axial alignment with said suction passage; a circumferentially disposed flange formed on the inner surface of said tube connector adjacent said reduced end portion; a tubular ring member being of greater ductility than engaging parts arranged on said flange; and a tubular fitting having an end portion press fit in said passage and a shoulder portion projecting over said flange for engaging and compressing said ring member between said flange and said shoulder to seal the casing and suction tube connector to the compressor cylinder block.
Claim 2
Dependent Claim
157 words
A hermetic compressor unit comprising: a casing including a side wall; a compressor including a cylinder block positioned in said casing and having an outer surface adjacent the inner surface of said casing wall; a suction passage in said block opening into said outer surface; said casing having an opening aligned with and larger than said passage; a suction tube connector having a reduced end portion extending into said opening in axial alignment with said suction passage; a circumferentially disposed flange formed on the inner surface of said tube connector adjacent said reduced end portion; a tubular ring member being of greater ductility than engaging parts arranged on said flange; and a tubular fitting having an end portion press fit in said passage and a shoulder portion projecting over said flange for engaging and compressing said ring member between said flange and said shoulder to seal the casing and suction tube connector to the compressor cylinder block.
Claim 3
Dependent Claim
157 words
A hermetic compressor unit comprising: a casing including a side wall; a compressor including a cylinder block positioned in said casing and having an outer surface adjacent the inner surface of said casing wall; a suction passage in said block opening into said outer surface; said casing having an opening aligned with and larger than said passage; a suction tube connector having a reduced end portion extending into said opening in axial alignment with said suction passage; a circumferentially disposed flange formed on the inner surface of said tube connector adjacent said reduced end portion; a tubular ring member being of greater ductility than engaging parts arranged on said flange; and a tubular fitting having an end portion press fit in said passage and a shoulder portion projecting over said flange for engaging and compressing said ring member between said flange and said shoulder to seal the casing and suction tube connector to the compressor cylinder block.
Claim 4
Dependent Claim
157 words
A hermetic compressor unit comprising: a casing including a side wall; a compressor including a cylinder block positioned in said casing and having an outer surface adjacent the inner surface of said casing wall; a suction passage in said block opening into said outer surface; said casing having an opening aligned with and larger than said passage; a suction tube connector having a reduced end portion extending into said opening in axial alignment with said suction passage; a circumferentially disposed flange formed on the inner surface of said tube connector adjacent said reduced end portion; a tubular ring member being of greater ductility than engaging parts arranged on said flange; and a tubular fitting having an end portion press fit in said passage and a shoulder portion projecting over said flange for engaging and compressing said ring member between said flange and said shoulder to seal the casing and suction tube connector to the compressor cylinder block.
References Cited (Backward Citations)
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 |