US4924911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-way valve
Assignee: FW OVENTROP KG A CORP OF WEST GERMANY
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Filing: 1989-08-08
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Granted: 1990-05-15
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Expires: 2009-08-08
Abstract
Abstract A three-way valve has its inlet fitting fixed to a housing and a pair of outlet fittings on opposite sides of the inlet fitting are formed on annular compartments which are rotatable on the housing to simplify orientation of the fittings for installation in pipe networks and the like.
Inventors
- 👤 Dietrich Schmalenbach
- 👤 Bernhard Henke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:40
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/04; F16K11/048; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/5196; Y10T137/8593; Y10T137/86493; Y10T137/86879; Y10T137/86895
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
196 words
A three-way valve, especially for a bivalent heating plant or heat storage, comprising: a valve housing surrounding an axis of the valve housing and formed with an inlet at a fixed location on said housing extending transversely to said axis and opening into a valve chamber formed in said housing; a pair of outlet fittings extending transversely to said axis and communicating with said chamber on opposite axial sides thereof, each of said outlet fittings being rotatable about said axis for establishing various relative angular positions of said fittings relative to one another and to said inlet about said axis, each of said outlet fittings being formed on an annular compartment surrounding said housing and communicating with said chamber through a plurality of radial openings formed in said housing; respective axially displaceable valve members spaced apart along said axis and respectively positioned to alternately block communication between said inlet and one of said outlet fittings while communicating between the other outlet fitting and said inlet, and a stem extending along said axis and connecting said valve members for joint axial displacement into a double-valve assembly; and means for axially shifting said assembly relative to said housing.
Claim 2
Dependent Claim
196 words
A three-way valve, especially for a bivalent heating plant or heat storage, comprising: a valve housing surrounding an axis of the valve housing and formed with an inlet at a fixed location on said housing extending transversely to said axis and opening into a valve chamber formed in said housing; a pair of outlet fittings extending transversely to said axis and communicating with said chamber on opposite axial sides thereof, each of said outlet fittings being rotatable about said axis for establishing various relative angular positions of said fittings relative to one another and to said inlet about said axis, each of said outlet fittings being formed on an annular compartment surrounding said housing and communicating with said chamber through a plurality of radial openings formed in said housing; respective axially displaceable valve members spaced apart along said axis and respectively positioned to alternately block communication between said inlet and one of said outlet fittings while communicating between the other outlet fitting and said inlet, and a stem extending along said axis and connecting said valve members for joint axial displacement into a double-valve assembly; and means for axially shifting said assembly relative to said housing.
Claim 3
Dependent Claim
32 words
The three-way valve defined in claim 1, further comprising respective annular seals flanking the openings communicating with each of said annular compartments and sealingly interposed between the respective compartment and said body.
Claim 4
Dependent Claim
17 words
The three-way valve defined in claim 1 wherein said outlet fittings extend radially from the respective compartments.
Claim 5
Dependent Claim
39 words
The three-way valve defined in claim 3 wherein each of said compartments is held axially against an annular shoulder of said housing by a spring ring seated in said housing and permitting rotation of the respective compartment relative thereto.
Claim 6
Dependent Claim
62 words
The three-way valve defined in claim 4 wherein said housing is formed with said chamber surrounding said stem and generally centrally between said compartments, and a pair of further chambers axially flanking the first-mentioned chamber and communicating therewith, each of said further chambers being surrounded by a respective one of said compartments and communicating therewith through a respective plurality of said openings.
Claim 7
Dependent Claim
29 words
The three-way valve defined in claim 5 wherein between each of said further chambers and the first chamber, a respective seat engageable by a respective valve member is formed.
Claim 8
Dependent Claim
14 words
The three-way valve defined in claim 6 wherein said valve members are respective disks.
Claim 9
Dependent Claim
62 words
The three-way valve defined in claim 1 wherein said housing is formed with said chamber surrounding said stem and generally centrally between said compartments, and a pair of further chambers axially flanking the first-mentioned chamber and communicating therewith, each of said further chambers being surrounded by a respective one of said compartments and communicating therewith through a respective plurality of said openings.
Claim 10
Dependent Claim
29 words
The three-way valve defined in claim 8 wherein between each of said further chambers and the first chamber, a respective seat engageable by a respective valve member is formed.
Claim 11
Dependent Claim
14 words
The three-way valve defined in claim 9 wherein said valve members are respective disks.
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) | 1993-05-14 | 1993-11-13 | 1994-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-14 | 1997-11-13 | 1998-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-14 | 2001-11-13 | 2002-05-15 | $7700.00 | Window Closed / Lapsed |