US3815747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water softening systems
Assignee: Clack Corp
•
Filing: 1972-05-26
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Granted: 1974-06-11
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Expires: 1992-05-26
Abstract
Abstract A method and apparatus for softening water in a single conditioning tank system. The water flow through the mineral bed in each service cycle is reversed from the last preceding service cycle and the water-brine solution flow through the mineral bed in each regeneration cycle is reversed from the last preceding regeneration cycle. That is, a downflow service cycle through the mineral bed is followed by an upflow regeneration cycle, an upflow service cycle and a downflow regeneration cycle.
Inventors
- 👤 W Clack
- 👤 C Nygren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:03
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/42; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87338; Y10T137/87362; Y10T137/8737
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
484 words
Water softening apparatus comprising: a. a single conditioning tank, b. a mineral bed in said tank, c. a distributor in the top of said tank d. a riser pipe in said tank, e. a distributor connected to said riser pipe in the bottom of said tank, f. a valve mounted on said tank, g. a brine injector port in said valve, h. an inlet in said valve for supplying raw water to said tank for conditioning and to said brine injector port for forming a waterbrine solution, i. an outlet in said valve for supplying water for service from said apparatus, j. a drain port in said valve for discharging waterbrine solution from said apparatus, k. a first distributor port in said valve for supplying raw water and water-brine solution to said top distributor, l. a second distributor port in said valve for supplying conditioned water from said top distributor to said outlet and water-brine solution from said top distributor to said drain port, m. a riser port in said valve for supplying raw water and waterbrine solution to said riser pipe, for supplying conditioned water from said riser pipe to said outlet, and for supplying water-brine solution from said riser pipe to said drain port, n. a first passageway in said valve for connecting said inlet to said first distributor port and said riser port, o. a second passageway in said valve for connecting said outlet to said riser port and to said second distributor port and said drain port to said riser port and to said second distributor port, p. a third passageway in said valve for connecting said inlet to said brine port, said riser port and said first distributor port, q. a first valve member being reciprocal between a service position and a regeneration position in a first valve bore which is in communication with said outlet, drain port and inlet, said first valve member having, 1. a first valve closure movable within said first valve bore from one side of said second passageway to the other side thereof, 2. a second valve closure located within said first valve bore between said drain port and said first passageway, and 3. a third vAlve closure movable within said first valve bore from one side of said inlet to the other side of said inlet, and r. a second valve member being reciprocal between a downflow service and downflow regeneration position and an upflow service and upflow regeneration position in a second valve bore which is in communication with said first and second distributor ports and said riser port, said second valve member having, 1. a first valve closure movable within said second valve bore from one side of said second passageway to the other side thereof, and 2. a second valve closure movable within said second valve bore from one side of said first passageway to the other side thereof. DUIINEEGENO
Claim 2
Dependent Claim
484 words
Water softening apparatus comprising: a. a single conditioning tank, b. a mineral bed in said tank, c. a distributor in the top of said tank d. a riser pipe in said tank, e. a distributor connected to said riser pipe in the bottom of said tank, f. a valve mounted on said tank, g. a brine injector port in said valve, h. an inlet in said valve for supplying raw water to said tank for conditioning and to said brine injector port for forming a waterbrine solution, i. an outlet in said valve for supplying water for service from said apparatus, j. a drain port in said valve for discharging waterbrine solution from said apparatus, k. a first distributor port in said valve for supplying raw water and water-brine solution to said top distributor, l. a second distributor port in said valve for supplying conditioned water from said top distributor to said outlet and water-brine solution from said top distributor to said drain port, m. a riser port in said valve for supplying raw water and waterbrine solution to said riser pipe, for supplying conditioned water from said riser pipe to said outlet, and for supplying water-brine solution from said riser pipe to said drain port, n. a first passageway in said valve for connecting said inlet to said first distributor port and said riser port, o. a second passageway in said valve for connecting said outlet to said riser port and to said second distributor port and said drain port to said riser port and to said second distributor port, p. a third passageway in said valve for connecting said inlet to said brine port, said riser port and said first distributor port, q. a first valve member being reciprocal between a service position and a regeneration position in a first valve bore which is in communication with said outlet, drain port and inlet, said first valve member having, 1. a first valve closure movable within said first valve bore from one side of said second passageway to the other side thereof, 2. a second valve closure located within said first valve bore between said drain port and said first passageway, and 3. a third vAlve closure movable within said first valve bore from one side of said inlet to the other side of said inlet, and r. a second valve member being reciprocal between a downflow service and downflow regeneration position and an upflow service and upflow regeneration position in a second valve bore which is in communication with said first and second distributor ports and said riser port, said second valve member having, 1. a first valve closure movable within said second valve bore from one side of said second passageway to the other side thereof, and 2. a second valve closure movable within said second valve bore from one side of said first passageway to the other side thereof. DUIINEEGENO
Claim 3
Dependent Claim
19 words
a second valve closure located within said first valve bore between said drain port and said first passageway, and
Claim 4
Dependent Claim
19 words
a second valve closure located within said first valve bore between said drain port and said first passageway, and
Claim 5
Dependent Claim
23 words
a second valve closure movable within said second valve bore from one side of said first passageway to the other side thereof. DUIINEEGENO
Claim 6
Dependent Claim
23 words
a second valve closure movable within said second valve bore from one side of said first passageway to the other side thereof. DUIINEEGENO
Claim 7
Dependent Claim
28 words
A valve as specified in claim 1 having a raw water by-pass connecting said inlet with said outlet for supplying raw water to service during each regeneration cycle.
Claim 8
Dependent Claim
72 words
a third vAlve closure movable within said first valve bore from one side of said inlet to the other side of said inlet, and r. a second valve member being reciprocal between a downflow service and downflow regeneration position and an upflow service and upflow regeneration position in a second valve bore which is in communication with said first and second distributor ports and said riser port, said second valve member having,
Claim 9
Dependent Claim
72 words
a third vAlve closure movable within said first valve bore from one side of said inlet to the other side of said inlet, and r. a second valve member being reciprocal between a downflow service and downflow regeneration position and an upflow service and upflow regeneration position in a second valve bore which is in communication with said first and second distributor ports and said riser port, said second valve member having,
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |