Patent US3729832A successfully refreshed from Google Patents.
US3729832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for drying motor compressors
Assignee: Danfoss AS
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Filing: 1971-05-12
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Granted: 1973-05-01
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Expires: 1991-05-12
Abstract
Abstract The invention relates to a method and apparatus for drying motor compressors of the type having a semispherically shaped casing with a motor compressor unit mounted in the casing. The drying object is achieved by introducing, under pressure, a directed stream (or streams) of a gaseous drying medium into the gap between the wall of the case and the motor compressor unit at several peripheral points and the internal curvature of the casing causes the streams to respectively leave the gap at other peripheral points.
Inventors
- 👤 E Lund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:50
CPC Classifications
F; F26; F26B; F26B15/00; F26B15/10; F26B15/12; F26B15/18; F25; F25B; F25B31/00; F26B21/00; F26B21/20; F26B21/25; F26B21/50; F26B21/55; H; H02; H02K; H02K15/00; H02K15/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
70 words
A method for drying a motor compressor assembly of the type having a generally semispherically shaped casing with a motor and compressor unit mounted therein comprising the step of directing a stream of gaseous drying medium so as to enter into the circumferential space between said unit and the internal surface of said case at one peripheral point and to leave said circumferential space at another diametrically opposite peripheral point.
Claim 2
Independent Claim
70 words
A method for drying a motor compressor assembly of the type having a generally semispherically shaped casing with a motor and compressor unit mounted therein comprising the step of directing a stream of gaseous drying medium so as to enter into the circumferential space between said unit and the internal surface of said case at one peripheral point and to leave said circumferential space at another diametrically opposite peripheral point.
Claim 3
Dependent Claim
30 words
A method according to claim 1 wherein at least one more stream similar to said stream is provided and said streams are successively directed into and out of said casing.
Claim 4
Dependent Claim
25 words
A method according to claim 2 wherein said streams are positionally arranged so that opposite sides of a casing are alternately subjected to said streams.
Claim 5
Dependent Claim
36 words
A method according to claim 2 wherein assemblies similar to said assembly are moved on a conveyor through a drying chamber and a stationary nozzle arrangement for delivering said streams of gaseous drying medium is provided.
Claim 6
Dependent Claim
69 words
Drying apparatus for drying motor compressor assemblies of the type having a generally semispherically shaped casing with a motor and compressor unit mounted therein comprising a conveyor belt, a drying chamber duct surrounding said belt having a height and width which only slightly exceeds the corresponding dimensions of said casings and sets of nozzles for directing streams of gaseous drying medium arranged alternately on opposite sides of said belt.
Claim 7
Dependent Claim
69 words
Drying apparatus for drying motor compressor assemblies of the type having a generally semispherically shaped casing with a motor and compressor unit mounted therein comprising a conveyor belt, a drying chamber duct surrounding said belt having a height and width which only slightly exceeds the corresponding dimensions of said casings and sets of nozzles for directing streams of gaseous drying medium arranged alternately on opposite sides of said belt.
Claim 8
Dependent Claim
23 words
Apparatus according to claim 5 wherein said nozzles are positioned above said belt and suction orifices are in said duct beneath said belt.
Claim 9
Independent Claim
81 words
A method for drying a motor compressor assembly of the type having a generally semispherically shaped casing with a motor and compressor unit mounted therein comprising the step of directing a steam of gaseous drying medium so as to enter into the circumferential space between said unit and the internal surface of said case at one peripheral point and to leave said circumferential space at another peripheral point, said stream moving in a circular path about the axis of said casing.
Claim 10
Independent Claim
81 words
A method for drying a motor compressor assembly of the type having a generally semispherically shaped casing with a motor and compressor unit mounted therein comprising the step of directing a steam of gaseous drying medium so as to enter into the circumferential space between said unit and the internal surface of said case at one peripheral point and to leave said circumferential space at another peripheral point, said stream moving in a circular path about the axis of said casing.
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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |