US3570520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volumetric valve
Assignee: Individual
•
Filing: 1969-09-24
•
Granted: 1971-03-16
•
Expires: 1989-09-24
Abstract
Abstract A volumetric valve contains an impeller for undergoing rotation in opposite direction depending on the direction of passage of water through a resin in a vessel. The valve switches the direction of water flow after the impeller measures a given magnitude of water passage during treatment and regeneration respectively.
Inventors
- 👤 Fiorello Sodi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:51
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/001; C; C02; C02F; C02F1/00; C02F1/42; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2562; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86413; Y10T137/87265; Y10T137/87338; Y10T137/87346; Y10T137/87362; Y10T137/8737
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
130 words
An automatic volumetric valve adapted for controlling the softening of water by passage thereof through a resin bed and for controlling regeneration of the resin bed, said valve comprising: a volumetric counter including an impeller which can be driven in opposite directions of rotating, means defining a first path for the flow of water in one direction through the impeller during a softening operation, means defining a second path for the flow of water in an opposite direction through the impeller during a regeneration operation, reversing means for controlling the admission of water to one of said first and second paths, and means coupled to said impeller and said reversing means for controlling the admission of water to said respective paths based on the magnitude of rotation of the impeller.
Claim 2
Dependent Claim
130 words
An automatic volumetric valve adapted for controlling the softening of water by passage thereof through a resin bed and for controlling regeneration of the resin bed, said valve comprising: a volumetric counter including an impeller which can be driven in opposite directions of rotating, means defining a first path for the flow of water in one direction through the impeller during a softening operation, means defining a second path for the flow of water in an opposite direction through the impeller during a regeneration operation, reversing means for controlling the admission of water to one of said first and second paths, and means coupled to said impeller and said reversing means for controlling the admission of water to said respective paths based on the magnitude of rotation of the impeller.
Claim 3
Dependent Claim
68 words
A valve as claimed in claim 1, wherein said reversing means comprises a flow valve for selecting said paths, said means for controlling the admission of water to said respective paths comprising a rotatable disc coupled to the impeller for undergoing rotation therewith, and means coupling said disc with said flow valve to cause the latter to select said paths in accordance with the rotation of said disc.
Claim 4
Dependent Claim
68 words
A valve as claimed in claim 2, wherein said means coupling said disc with said flow valve comprises two pins on said disc with an angular interval therebetween, at least one of said pins being adjustable in position on the disc to vary said angular interval, and linkage means positioned in the path of travel of said pins to operate the flow valve when contacted by said pins.
Claim 5
Dependent Claim
30 words
A valve as claimed in claim 3 comprising transmission means between the impeller and disc to provide a different transmission ration for both said directions of rotation of the impeller.
Claim 6
Dependent Claim
45 words
A valve as claimed in claim 4, wherein said transmission means comprises two unidirectional friction couplings, one of which is operative in one direction of rotation of the disc and the other of which is operative in the other direction of rotation of the disc.
Claim 7
Dependent Claim
50 words
A valve as claimed in claim 5, wherein said transmission means comprises an input shaft coupled to said impeller, a pair of output shafts, and gear means between said input and output shafts, said unidirectional friction couplings comprising spiral springs clamped on said shafts and engaged with said gear means.
Claim 8
Dependent Claim
30 words
A valve as claimed in claim 3, wherein said disc is provided with a plurality of apertures in circumferential array, said pins being adjustable by selective engagement in respective apertures.
Claim 9
Dependent Claim
115 words
A valve as claimed in claim 2, wherein said valve comprises a body having a raw water inlet, a treated water outlet, a drain outlet during regeneration and an inlet for regenerating liquid, a valve member at said raw water inlet having a first position in which said first path is closed and a second position in which said first path is opened, and means biassing said valve member to said first position and including a chamber coupled to said drain, said flow valve closing said drain during a softening operation whereby the chamber is pressurized and the valve member biassed to said first position, said flow valve opening said drain during the regeneration operation.
Claim 10
Dependent Claim
40 words
A valve as claimed in claim 3, wherein said linkage means comprises spring means for rendering the linkage means bistable so that when the flow valve is actuated, it is snapped between operative positions for selecting one of said paths.
Claim 11
Dependent Claim
55 words
A vAlve as claimed in claim 9, wherein said spring means is positioned to be energized as the pin acts on the linkage means during rotation of the disc until the spring means snaps the linkage means from one position to the other to cause the flow valve to move to the other position thereof.
Claim 12
Dependent Claim
27 words
A valve as claimed in claim 1 comprising means in said second path to supply regenerant to the water flowing in the second path towards the resin.
Claim 13
Dependent Claim
45 words
A valve as claimed in claim 11, wherein said means in said second path comprises a venturi passage and regenerant supply means coupled to said venturi passage in the suction region thereof for the supply of regenerant by the suction produced in said venturi passage.
Claim 14
Dependent Claim
28 words
A valve as claimed in claim 12, wherein said regenerant supply means comprises valve means for defining minimum and maximum levels of regenerant in the regenerant supply means.
Claim 15
Dependent Claim
60 words
A valve as claimed in claim 13, wherein said valve means in the regenerant supply means comprises a float valve for limiting the maximum level in the regenerant supply means and a second float valve for closing communication between the regenerant supply means and said venturi passage when the minimum level of regenerant is reached in the regenerant supply means.
References Cited (Backward Citations)
US2310978A
Cited
US3509998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |