US3715032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid treatment devices
Assignee: Individual
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Filing: 1971-11-03
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Granted: 1973-02-06
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Expires: 1991-11-03
Abstract
Abstract Fluid treatment devices are disclosed utilizing a removable and preferably disposable fluid treatment unit, which may take the form of a filter, strainer, water softener or the like. The fluid treatment unit is removably mounted on a valve body which is arranged to direct the fluid through the treatment unit when it is mounted on the body. Inlet and outlet ports are preferably formed in the valve body and are adapted to be connected to the fluid supply system. The valve body is also preferably provided with discharge and return ports adapted to be connected to the fluid treatment unit. An automatic valve mechanism is provided in the valve body to disconnect the discharge port from the inlet port when the treatment unit is removed from the body. The outlet port is also preferably disconnected from the return port. In this way, no substantial quantity of the fluid will be discharged from the valve body when the treatment unit is removed. The automatic valve mechanism also preferably opens a bypass passage between the inlet and outlet ports when the treatment unit is removed. When a new fluid treatment unit is mounted on the body, the automatic valve mechanism is preferably operated so as to close the bypass passage while opening the normal service passages so that the fluid can flow from the inlet port to the discharge port, through the treatment unit, and then from the return port to the outlet port. Preferably, the valve mechanism is operated by a tube projecting out of the fluid treatment unit and adapted to be inserted into the valve body. The tube may be provided by a coupling component, adapted to receive a disposable canister or the like and arranged to be removably mounted on the valve body.
Inventors
- 👤 S Nicko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:01
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/04; B; B01; B01D; B01D35/00; B01D35/14; B01D35/147; B01D35/153; C; C02; C02F; C02F1/00; C02F1/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
471 words
A fluid treatment device, comprising an exchangeable fluid treatment unit including a container having coaxial inlet and outlet conduits, one of said conduits being in the form of a generally cylindrical axial pipe member projecting from said container, the other of said coaxial conduits being in the form of a tubular neck member disposed on said container around said axial pipe member and spaced outwardly therefrom, said neck member having a first threaded connecting member connected thereto and coaxial therewith, a valve body having inlet and outlet ports for connection to a supply system, said valve body having a second threaded connecting member for mating with said first threaded connecting member to connect said container to said valve body in an easily removable manner, said valve body having a generally cylindrical wall member for mating with said neck member on said container, a first sealing ring for providing a sliding seal between said neck member and said wall member, one of said last-mentioned members having a groove therein for retaining said sealing ring, said valve body having a valve mechanism including a valve member movable in said body between normal service and out-ofservice positions, said valve member having a bore therein for receiving said pipe member, and a second sealing ring for providing a sliding seal between said pipe member and said bore in said valve member, one of said last-mentioned members Having a groove therein for retaining said sealing ring, said valve body having a bypass passage therein, said valve mechanism including means operable by said valve member in said normal service position to provide supply passages connecting one of said ports to the interior of said pipe member while connecting the other port to the space between said pipe member and said neck member, said means being operable by said valve member in said out-ofservice position to close off said supply passages while connecting both of said ports to said bypass passage, said valve mechanism including resilient means biasing said valve member toward said out-of-service position, said bore in said valve member having a shoulder therein engageable by the end of said pipe member upon insertion of said pipe member into said bore and connection of said first and second threaded connecting members whereby said pipe member is effective to move said valve member between said normal service position and said out-of-service position, the relative positions of said shoulder, said first and second sealing rings and said first and second threaded connecting members being made such that said pipe member does not engage said shoulder until after said first and second sealing rings are engaged by the corresponding members and fully operative as seals therebetween, and also until after said first and second threaded connecting members are mutually engaged to retain said fluid treatment unit on said valve body.
Claim 2
Dependent Claim
471 words
A fluid treatment device, comprising an exchangeable fluid treatment unit including a container having coaxial inlet and outlet conduits, one of said conduits being in the form of a generally cylindrical axial pipe member projecting from said container, the other of said coaxial conduits being in the form of a tubular neck member disposed on said container around said axial pipe member and spaced outwardly therefrom, said neck member having a first threaded connecting member connected thereto and coaxial therewith, a valve body having inlet and outlet ports for connection to a supply system, said valve body having a second threaded connecting member for mating with said first threaded connecting member to connect said container to said valve body in an easily removable manner, said valve body having a generally cylindrical wall member for mating with said neck member on said container, a first sealing ring for providing a sliding seal between said neck member and said wall member, one of said last-mentioned members having a groove therein for retaining said sealing ring, said valve body having a valve mechanism including a valve member movable in said body between normal service and out-ofservice positions, said valve member having a bore therein for receiving said pipe member, and a second sealing ring for providing a sliding seal between said pipe member and said bore in said valve member, one of said last-mentioned members Having a groove therein for retaining said sealing ring, said valve body having a bypass passage therein, said valve mechanism including means operable by said valve member in said normal service position to provide supply passages connecting one of said ports to the interior of said pipe member while connecting the other port to the space between said pipe member and said neck member, said means being operable by said valve member in said out-ofservice position to close off said supply passages while connecting both of said ports to said bypass passage, said valve mechanism including resilient means biasing said valve member toward said out-of-service position, said bore in said valve member having a shoulder therein engageable by the end of said pipe member upon insertion of said pipe member into said bore and connection of said first and second threaded connecting members whereby said pipe member is effective to move said valve member between said normal service position and said out-of-service position, the relative positions of said shoulder, said first and second sealing rings and said first and second threaded connecting members being made such that said pipe member does not engage said shoulder until after said first and second sealing rings are engaged by the corresponding members and fully operative as seals therebetween, and also until after said first and second threaded connecting members are mutually engaged to retain said fluid treatment unit on said valve body.
Claim 3
Dependent Claim
471 words
A fluid treatment device, comprising an exchangeable fluid treatment unit including a container having coaxial inlet and outlet conduits, one of said conduits being in the form of a generally cylindrical axial pipe member projecting from said container, the other of said coaxial conduits being in the form of a tubular neck member disposed on said container around said axial pipe member and spaced outwardly therefrom, said neck member having a first threaded connecting member connected thereto and coaxial therewith, a valve body having inlet and outlet ports for connection to a supply system, said valve body having a second threaded connecting member for mating with said first threaded connecting member to connect said container to said valve body in an easily removable manner, said valve body having a generally cylindrical wall member for mating with said neck member on said container, a first sealing ring for providing a sliding seal between said neck member and said wall member, one of said last-mentioned members having a groove therein for retaining said sealing ring, said valve body having a valve mechanism including a valve member movable in said body between normal service and out-of-service positions, said valve member having a bore therein for receiving said pipe member, and a second sealing ring for providing a sliding seal between said pipe member and said bore in said valve member, one of said last-mentioned members Having a groove therein for retaining said sealing ring, said valve body having a bypass passage therein, said valve mechanism including means operable by said valve member in said normal service position to provide supply passages connecting one of said ports to the interior of said pipe member while connecting the other port to the space between said pipe member and said neck member, said means being operable by said valve member in said out-of-service position to close off said supply passages while connecting both of said ports to said bypass passage, said valve mechanism including resilient means biasing said valve member toward said out-of-service position, said bore in said valve member having a shoulder therein engageable by the end of said pipe member upon insertion of said pipe member into said bore and connection of said first and second threaded connecting members whereby said pipe member is effective to move said valve member between said normal service position and said out-of-service position, the relative positions of said shoulder, said first and second sealing rings and said first and second threaded connecting members being made such that said pipe member does not engage said shoulder until after said first and second sealing rings are engaged by the corresponding members and fully operative as seals therebetween, and also until after said first and second threaded connecting members are mutually engaged to retain said fluid treatment unit on said valve body.
Claim 4
Dependent Claim
471 words
A fluid treatment device, comprising an exchangeable fluid treatment unit including a container having coaxial inlet and outlet conduits, one of said conduits being in the form of a generally cylindrical axial pipe member projecting from said container, the other of said coaxial conduits being in the form of a tubular neck member disposed on said container around said axial pipe member and spaced outwardly therefrom, said neck member having a first threaded connecting member connected thereto and coaxial therewith, a valve body having inlet and outlet ports for connection to a supply system, said valve body having a second threaded connecting member for mating with said first threaded connecting member to connect said container to said valve body in an easily removable manner, said valve body having a generally cylindrical wall member for mating with said neck member on said container, a first sealing ring for providing a sliding seal between said neck member and said wall member, one of said last-mentioned members having a groove therein for retaining said sealing ring, said valve body having a valve mechanism including a valve member movable in said body between normal service and out-of-service positions, said valve member having a bore therein for receiving said pipe member, and a second sealing ring for providing a sliding seal between said pipe member and said bore in said valve member, one of said last-mentioned members Having a groove therein for retaining said sealing ring, said valve body having a bypass passage therein, said valve mechanism including means operable by said valve member in said normal service position to provide supply passages connecting one of said ports to the interior of said pipe member while connecting the other port to the space between said pipe member and said neck member, said means being operable by said valve member in said out-of-service position to close off said supply passages while connecting both of said ports to said bypass passage, said valve mechanism including resilient means biasing said valve member toward said out-of-service position, said bore in said valve member having a shoulder therein engageable by the end of said pipe member upon insertion of said pipe member into said bore and connection of said first and second threaded connecting members whereby said pipe member is effective to move said valve member between said normal service position and said out-of-service position, the relative positions of said shoulder, said first and second sealing rings and said first and second threaded connecting members being made such that said pipe member does not engage said shoulder until after said first and second sealing rings are engaged by the corresponding members and fully operative as seals therebetween, and also until after said first and second threaded connecting members are mutually engaged to retain said fluid treatment unit on said valve body.
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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |