US3840175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
By-pass valve assembly for pool type heater
Assignee: Jacuzzi Brothers Inc
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Filing: 1972-04-05
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Granted: 1974-10-08
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Expires: 1992-04-05
Abstract
Abstract In a pool-type heater, a by-pass passageway around the heat exchanger includes a valve of the flexible disc type under closing pressure against the valve seat, which valve is responsive to differential pressure of a predetermined magnitude across the liquid in the flow path through the heat exchanger, to flex away from its valve seat, to accordingly control by-pass flow. A thermal power unit in the flow path of liquid emerging from the heating means, applies supplemental closing pressure to the disc type valve in accordance with temperature of such water, to minimize excessive temperature rise in said heat exchanger.
Inventors
- 👤 V Jacuzzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:20
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/14; F01P7/16; F24; F24H; F24H9/00; F24H9/20; F24H9/2007; F24H9/2035; G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1306; G05D23/132; G05D23/1333; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7935
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
177 words
A valve assembly for a pool-type heater for water comprising a housing having a pair of flow passages therethrough, one for coupling to the inlet of a heater and the other to the discharge from the heater, a by-pass interconnecting said flow passage, a valve seat spanning said by-pass, a flexible disc-type valve held with its rim against the discharge side of said valve seat by means bearing against the center of said flexible valve, said means bearing said flexible valve against said valve seat including a valve stem adjustably anchored at an end remote from the valve, a compression spring encircling the stem and fixed thereto, said valve mounted on the other end of said stem and in sliding relationship therewith and being engaged by said spring whereby small pressure differentials between the inlet and discharge passages will cause a flexing of said valve while large pressure differentials will cause the valve to slide away from the valve seat thereby allowing for water to by-pass said heater in proportion to the magnitudes of the pressure differentials.
Claim 2
Dependent Claim
177 words
A valve assembly for a pool-type heater for water comprising a housing having a pair of flow passages therethrough, one for coupling to the inlet of a heater and the other to the discharge from the heater, a by-pass interconnecting said flow passage, a valve seat spanning said by-pass, a flexible disc-type valve held with its rim against the discharge side of said valve seat by means bearing against the center of said flexible valve, said means bearing said flexible valve against said valve seat including a valve stem adjustably anchored at an end remote from the valve, a compression spring encircling the stem and fixed thereto, said valve mounted on the other end of said stem and in sliding relationship therewith and being engaged by said spring whereby small pressure differentials between the inlet and discharge passages will cause a flexing of said valve while large pressure differentials will cause the valve to slide away from the valve seat thereby allowing for water to by-pass said heater in proportion to the magnitudes of the pressure differentials.
Claim 3
Dependent Claim
19 words
A valve assembly in accordance with claim 1, characterized by said flexible disc-type valve being somewhat conical in shape.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |