US3799352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dessicant device
Assignee: Clecon Inc
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Filing: 1972-03-20
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Granted: 1974-03-26
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Expires: 1992-03-20
Abstract
Abstract The application discloses a desiccant device with an integral, mechanical filter adapted for use in removing solid particles and moisture from the refrigerant fluid in refrigerant systems. The device comprises a body which receives the desiccant and is pervious to the passage of refrigerant fluid through it and at least one foraminous member sealed to the body to mechanically filter the fluid passing through the body. In one form, the foraminous member extends beyond the periphery of the body in a configuration and dimension sufficient to sealingly engage the walls of the housing of the refrigerant system within which it is disposed, thereby providing a filtering seal.
Inventors
- 👤 Clive R Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:56
CPC Classifications
F; F25; F25B; F25B43/00; F25B43/003; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0202; B01D29/00; B01D29/01; B01D29/50; B01D29/56; B01D36/00; B01D36/003; C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; Y; Y10; Y10S; Y10S210/00; Y10S210/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
344 words
A unitary, one-piece desiccant device containing a desiccant material adapted for replaceable installation in a refrigeration system of the type having a hollow housing for interiorly mounting said device for removing moisture from a refrigerant fluid said desiccant device comprising, a hollow body member containing said desiccant material removably insertable in a bore in said housing in the path of refrigerant flow therethrough, said body member including an axially rigid, endless exterior side wall made from a polymeric material and having upper and lower peripheral end edges, said side wall being of a fluid impervious, self-supporting construction having a maximum transverse dimensiOn which is less than the corresponding minimum transverse dimension of the bore in said housing, said body including upper and lower flexible, filter members each made from a fluid pervious, polymeric fibrous material, the polymeric material of said body and filter members being sufficiently compatible with one another so that said upper and lower filter members are secured in heat fused and sealed engagement with the confronting surfaces of the associated upper and lower end edges of said body member respectively, said body and filter members together defining a closed receptacle for containing said desiccant material and with said filter members conjointly acting with particles and moisture from said refrigerant flow, said filter members being of a generally flat construction extending generally parallel to one another and generally normal to the longitudinal central axis of said body member, at least one of said filter members extending transversely outwardly beyond the outer periphery of said side wall to provide an endless flexible flap portion adapted to sealingly engage the confronting interior surface of said housing, said flap portion being of said fluid pervious construction to enable refrigerant flow therethrough and adapted for mechanically filtering solid particles from said refrigerant flow thereby to retard general bypassing of refrigerant through the desiccant material of said desiccant device, and said body and filter members being made from polymeric materials selected from compatible heat fusible materials selected from the group consisting of polypropylene, polystyrene and the like.
Claim 2
Dependent Claim
344 words
A unitary, one-piece desiccant device containing a desiccant material adapted for replaceable installation in a refrigeration system of the type having a hollow housing for interiorly mounting said device for removing moisture from a refrigerant fluid said desiccant device comprising, a hollow body member containing said desiccant material removably insertable in a bore in said housing in the path of refrigerant flow therethrough, said body member including an axially rigid, endless exterior side wall made from a polymeric material and having upper and lower peripheral end edges, said side wall being of a fluid impervious, self-supporting construction having a maximum transverse dimensiOn which is less than the corresponding minimum transverse dimension of the bore in said housing, said body including upper and lower flexible, filter members each made from a fluid pervious, polymeric fibrous material, the polymeric material of said body and filter members being sufficiently compatible with one another so that said upper and lower filter members are secured in heat fused and sealed engagement with the confronting surfaces of the associated upper and lower end edges of said body member respectively, said body and filter members together defining a closed receptacle for containing said desiccant material and with said filter members conjointly acting with particles and moisture from said refrigerant flow, said filter members being of a generally flat construction extending generally parallel to one another and generally normal to the longitudinal central axis of said body member, at least one of said filter members extending transversely outwardly beyond the outer periphery of said side wall to provide an endless flexible flap portion adapted to sealingly engage the confronting interior surface of said housing, said flap portion being of said fluid pervious construction to enable refrigerant flow therethrough and adapted for mechanically filtering solid particles from said refrigerant flow thereby to retard general bypassing of refrigerant through the desiccant material of said desiccant device, and said body and filter members being made from polymeric materials selected from compatible heat fusible materials selected from the group consisting of polypropylene, polystyrene and the like.
Claim 3
Dependent Claim
37 words
A desiccant device in accordance with claim 1, wherein said upper and lower filter members each extend transversely outwardly beyond the outer periphery of said side wall to provide a pair of said endless, flexible flap portions.
Claim 4
Dependent Claim
38 words
A desiccant device in accordance with claim 1, wherein said filter members are made from a polymeric felt material of the type that is fusible by ultrasonic welding to the upper and lower edges of said side wall.
Claim 5
Dependent Claim
52 words
A dessicant device in accordance with claim 1, including an interior endless side wall disposed radially inwardly of said exterior side wall and defining an axial passageway extending between said filter members, and web means rigidly mounting said interior side wall in predetermined spaced relation with respect to said exterior side wall.
Claim 6
Dependent Claim
30 words
A dessicant device in accordance with claim 4, wherein, said filter members each includes an aperture communicating with said passageway and aligned therewith to receive a conduit element inserted therethrough.
Claim 7
Dependent Claim
54 words
A dessicant device in accordance with claim 5, including flange-like means disposed adjacent at least one end of said interior side wall, and said flange-like means projecting radially inwardly in a direction toward the longitudinal central axis of said passageway adapted for coacting friction sealing engagement with the confronting surfaces of said conduit element.
Claim 8
Dependent Claim
41 words
A dessicant device in accordance with claim 6, wherein said flange-like means are formed generally from the material of said filter member and project radially inwardly a distance sufficient to frictionally hold said device in supported relation on said conduit element.
Claim 9
Dependent Claim
30 words
A dessicant device in accordance with claim 5, wherein the longitudinal central axis of said interior side wall is co-incident with the longitudinal central axis of said exterior side wall.
Claim 10
Dependent Claim
37 words
A dessicant device in accordance with claim 4, wherein the longitudinal central axis of said interior wall member extends between the longitudinal central axis of said exterior wall member and the internal surface of said exterior wall.
Claim 11
Dependent Claim
28 words
A dessicant device in accordance with claim 4, wherein said web means includes a plurality of rib elements extending outwardly from said interior wall to said exterior wall.
Claim 12
Dependent Claim
55 words
A dessicant device in Accordance with claim 4, wherein said web means includes a plurality of spaced rib elements, certain of said rib elements extending axially of said interior wall, others of said rib elements extending radially from said interior wall to said exterior wall, and additional rib elements extending axially of said exterior wall.
Claim 13
Dependent Claim
65 words
A dessicant device in accordance with claim 4, wherein said web means includes a plurality of spaced radially extending rib elements, said rib elements being made integral at one end with said interior wall and being made integral at their opposite ends with said exterior wall so as to hold both of said walls in generally rigid predetermined spaced relationship with respect to one another.
Claim 14
Dependent Claim
304 words
A unitary, one-piece desiccant device containing a desiccant material adapted for replaceable installation in a refrigeration system of the type having a cylindrical, hollow housing for interiorly mounting said device for removing moisture from a refrigerant fluid, said desiccant device comprising, a cylindrical, hollow body member containing said desiccant material removably insertable in a bore in said housing in the path of refrigerant flow therethrough, said body member including a substantially axially rigid, endless exterior side wall made from a polymeric material and having upper and lower peripheral end edges, said side wall being of a fluid impervious, self-supporting construction having a maximum transverse dimension which is less than the corresponding minimum transverse dimension of the bore in said housing, said body including upper and lower flexible, filter members each made from a fluid pervious, polymeric material, said body and filter members being of the same polymeric material so that said upper and lower filter members are secured in heat fused and sealed engagement with the confronting surfaces of the associated upper and lower end edges of said body member respectively, said body and filter members together defining a closed receptacle for containing said desiccant material and with said filter members conjointly acting with said desiccant material to mechanically filter solid particles and moisture from said refrigerant flow, said filter members being of a generally flat construction extending generally parallel to one another and generally normal to the longitudinal central axis of said body member, at least one of said filter members extending tranversely outwardly beyond the outer periphery of said side wall to provide an endless flexible flap portion adapted to engage the confronting interior surface of said housing, for mechanically filtering solid particles from said refrigerant flow thereby to retard general bypassing of refrigerant through the desiccant material of said desiccant device.
Claim 15
Dependent Claim
304 words
A unitary, one-piece desiccant device containing a desiccant material adapted for replaceable installation in a refrigeration system of the type having a cylindrical, hollow housing for interiorly mounting said device for removing moisture from a refrigerant fluid, said desiccant device comprising, a cylindrical, hollow body member containing said desiccant material removably insertable in a bore in said housing in the path of refrigerant flow therethrough, said body member including a substantially axially rigid, endless exterior side wall made from a polymeric material and having upper and lower peripheral end edges, said side wall being of a fluid impervious, self-supporting construction having a maximum transverse dimension which is less than the corresponding minimum transverse dimension of the bore in said housing, said body including upper and lower flexible, filter members each made from a fluid pervious, polymeric material, said body and filter members being of the same polymeric material so that said upper and lower filter members are secured in heat fused and sealed engagement with the confronting surfaces of the associated upper and lower end edges of said body member respectively, said body and filter members together defining a closed receptacle for containing said desiccant material and with said filter members conjointly acting with said desiccant material to mechanically filter solid particles and moisture from said refrigerant flow, said filter members being of a generally flat construction extending generally parallel to one another and generally normal to the longitudinal central axis of said body member, at least one of said filter members extending tranversely outwardly beyond the outer periphery of said side wall to provide an endless flexible flap portion adapted to engage the confronting interior surface of said housing, for mechanically filtering solid particles from said refrigerant flow thereby to retard general bypassing of refrigerant through the desiccant material of said desiccant device.
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |