Patent US4581903A successfully refreshed from Google Patents.
US4581903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interchangeable suction accumulator and filter-drier
Assignee: Individual
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Filing: 1984-08-23
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Granted: 1986-04-15
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Expires: 2004-08-23
Abstract
Abstract An interchangeable suction line filter-drier and accumulator comprising a vessel having an inlet and an outlet, a removable filter-drier element, and a removable non-porous evaporator conduit which interchangeably functions as a filter-drier when the filter-drier is installed or as a suction accumulator when the non-porous evaporator is installed.
Inventors
- 👤 Harry Kerry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:43
CPC Classifications
F; F25; F25B; F25B43/00; F25B43/006; F25B43/003; F25B2400/00; F25B2400/03
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
135 words
An interchangeable suction accumulator and filter-drier device, for use in conjunction with a vapor compression heat transfer system employing a circulating refrigerant, comprising in combination: an open-ended vessel having an inlet and an outlet; cover means for sealingly closing the opened end of said vessel; a filter element; a non-porous evaporator conduit; means for removably installing said filter element within said vessel to filter the refrigerant flowing from said inlet to said outlet of said vessel; and means for removable installing said non-porous evaporator conduit in fluid communication with said outlet in said vessel to assure, when installed, accumulation of the liquid refrigerant in the bottom of said vessel, whereby the apparatus interchangeably functions as a suction filter-drier when the filter element is installed and as a suction accumulator when said evaporator conduit is installed.
Claim 2
Dependent Claim
135 words
An interchangeable suction accumulator and filter-drier device, for use in conjunction with a vapor compression heat transfer system employing a circulating refrigerant, comprising in combination: an open-ended vessel having an inlet and an outlet; cover means for sealingly closing the opened end of said vessel; a filter element; a non-porous evaporator conduit; means for removably installing said filter element within said vessel to filter the refrigerant flowing from said inlet to said outlet of said vessel; and means for removable installing said non-porous evaporator conduit in fluid communication with said outlet in said vessel to assure, when installed, accumulation of the liquid refrigerant in the bottom of said vessel, whereby the apparatus interchangeably functions as a suction filter-drier when the filter element is installed and as a suction accumulator when said evaporator conduit is installed.
Claim 3
Dependent Claim
30 words
The device as set forth in claim 1, further comprising a screen tube positioned concentrically with said outlet to provide support to said filter elements when installed in the device.
Claim 4
Dependent Claim
20 words
The device as set forth in claim 2, wherein said non-porous conduit is dimensioned to fit over said screen tube.
Claim 5
Dependent Claim
21 words
The device as set forth in claim 3, wherein said non-porous evaporator conduit is dimensioned to fit inside said screen tube.
Claim 6
Dependent Claim
29 words
The device as set forth in claim 1, further including deflector means for deflecting refrigerant flowing into said vessel via said inlet downwardly toward the bottom of said vessel.
Claim 7
Dependent Claim
20 words
The device as set forth in claim 1, wherein said outlet is positioned in a bottom wall of said vessel.
Claim 8
Dependent Claim
15 words
The device as set forth in claim 6, wherein said non-porous evaporator conduit is upstanding.
Claim 9
Dependent Claim
26 words
The device as set forth in claim 1, wherein said non-porous evaporator conduit is horizontally disposed when installed in said vessel and has an upturned end.
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) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |