US3704728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing valve for fluids
Assignee: Grohe Water Technology AG and Co KG
•
Filing: 1970-12-10
•
Granted: 1972-12-05
•
Expires: 1990-12-10
Abstract
Abstract A valve housing has an internal mixing chamber and an elongated passage rising from the mixing chamber. At least two fluid conduits open at the bottom wall of the mixing chamber and communicate with the latter so as to discharge fluid under pressure thereinto. A valve arrangement includes a member of arcuately segmental shape which is provided at its opposite ends with valve members accommodated in the open ends of the conduits and capable of being deflected from the closed position in which they stop fluid flow, to open positions in which they are located farther in the mixing chamber and permit the fluid flow into the same. A valve control element is mounted in the passage and is turnable as well as axially displaceable therein, having a lower end face constructed as a cam face and capable of engaging the valve members in a sense moving them to closed position, or retracting therefrom in a sense permitting the valve members to be displaced by the pressure of fluid in the conduits to positions in which they are spaced at different distances from the openings of the conduits and permit the fluid flow out of the conduits into the mixing chamber at different rates.
Inventors
- 👤 Egon Huneke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:51
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/14; F16K11/18; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86815; Y10T137/87056; Y10T137/87064; Y10T137/87088
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
219 words
A mixing valve for fluids, comprising a valve housing having an internal mixing chamber provided with a bottom wall and an elongated passage extending upwardly from said mixing chamber; at least two fluid conduits each having an outlet in said bottom wall and communicating with said mixing chamber for discharging fluid under pressure into the same; a valve arrangement comprising an arcuate support segment having spaced end portions and overlying said bottom wall and two valve members respectively provided on said end portions and each movable between a closure position in which it is partially lodged in and closes an associated one of said outlets, and a plurality of opening positions in which it is upwardly displaced out of said associated outlet to different extents; and a valve control element mounted in said passage turnable and axially displaceable therein and in part projecting beyond said housing for access by a user, said valve control element having an inner end located in said mixing chamber and provided with means for engaging said valve members and urging them to said closing position, and for permitting said valve members to move to said respective open positions thereof in dependence upon the composite rotational and axial displacement of said valve control member and in response to he pressure of fluid in said conduits.
Claim 2
Dependent Claim
219 words
A mixing valve for fluids, comprising a valve housing having an internal mixing chamber provided with a bottom wall and an elongated passage extending upwardly from said mixing chamber; at least two fluid conduits each having an outlet in said bottom wall and communicating with said mixing chamber for discharging fluid under pressure into the same; a valve arrangement comprising an arcuate support segment having spaced end portions and overlying said bottom wall and two valve members respectively provided on said end portions and each movable between a closure position in which it is partially lodged in and closes an associated one of said outlets, and a plurality of opening positions in which it is upwardly displaced out of said associated outlet to different extents; and a valve control element mounted in said passage turnable and axially displaceable therein and in part projecting beyond said housing for access by a user, said valve control element having an inner end located in said mixing chamber and provided with means for engaging said valve members and urging them to said closing position, and for permitting said valve members to move to said respective open positions thereof in dependence upon the composite rotational and axial displacement of said valve control member and in response to he pressure of fluid in said conduits.
Claim 3
Dependent Claim
26 words
A mixing valve as defined in claim 1, said means including cam means provided on said inner end and operative for engagement with said valve members.
Claim 4
Dependent Claim
31 words
A mixing valve as defined in claim 1, said valve members being of substantially conical configuration and each arranged to extend at least in part axially into one of said outlets.
Claim 5
Dependent Claim
19 words
A mixing valve as defined in claim 1, wherein aid arcuate segment consists at least predominantly of elastomeric material.
Claim 6
Dependent Claim
18 words
A mixing valve as defined in claim 1, wherein said valve members are unitary with said arcuate segment.
Claim 7
Dependent Claim
33 words
A mixing valve as defined in claim 1; further comprising rotation-preventing means on said segment and said housing for preventing rotation of the former with reference to he latter in said mixing chamber.
Claim 8
Dependent Claim
52 words
A mixing valve as defined in claim 1, said means comprising an annular face surrounding the axis of rotation of said valve control element, said face having a smooth portion extending over substantially one-third over the circumference of said annular face and a wavy portion extending over substantially two-thirds of said circumference.
Claim 9
Dependent Claim
29 words
A mixing valve as defined in claim 7, said annular face being an axial endface of said valve control element and facing towards said bottom wall of said chamber.
Claim 10
Dependent Claim
36 words
A mixing valve as defined in claim 1, said valve control element being a control cylinder having a central bore, and a plurality of apertures communicating with said central bore and with aid mixing chamber, respectively.
Claim 11
Dependent Claim
57 words
A mixing valve as defined in claim 9, said housing comprising a first portion provided with said mixing chamber, and a second portion provided with said passage, and wherein said control cylinder is mounted in said second portion; and further comprising sealing means sealing said housing against escape of fluid through said passage along said control cylinder.
Claim 12
Dependent Claim
26 words
A mixing valve as defined in claim 10; and further comprising a spring ring releasably connecting said second portion with said first portion of said housing.
Claim 13
Dependent Claim
34 words
A mixing valve as defined in claim 11, wherein said second portion and said valve control element are removable as a unit from said first portion in response to release of said spring ring.
Claim 14
Dependent Claim
65 words
A mixing valve as defined in claim 1, said valve control element comprising control cylinder having a central axial bore provided with a plurality of apertures communicating with said bore and said mixing chamber, respectively, and a slide member slidably mounted in said bore for blocking nd unblocking said apertures in dependence upon sliding movement of said slide member with reference to said control cylinder.
Claim 15
Dependent Claim
23 words
A mixing valve as defined in claim 13, said valve control element further comprising a pressure-relief piston operatively associated with said slide member.
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) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |