US3774644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Converter for converting electrical signals into fluid signals
Assignee: Robert Bosch GmbH
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Filing: 1972-03-27
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Granted: 1973-11-27
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Expires: 1992-03-27
Abstract
Abstract A converter for converting electrical signals into fluid signals has a permanent magnet and a pair of soft iron pole pieces to form an air gap. Three soft iron plates are integrated with the soft iron pole pieces to complete the magnetic circuit of the permanent magnet. Each plate is provided with rectangular extensions for mating with the soft iron pole pieces, and an armature portion having a fixed end and an opposite free movable end. A coil is wound upon the armature portion for receiving electrical signals and modifying the strength and direction of the magnetic field created by the permanent magnet for urging the free end to move in one or another direction from the neutral position. A fluid passage extending along the axis of symmetry of the armature injects liquid passing therethrough under a supply pressure to a pair of receiving nozzles symmetrically oriented about said axis of symmetry for receiving more or less fluid from said armature in dependence on the position of the latter.
Inventors
- 👤 V Leutner
- 👤 R Romes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:39
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/02; F15C1/04; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2213; Y10T137/2224; Y10T137/2278; Y10T137/2322
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
232 words
A transducer for converting electrical signals into pressurefluid signals, comprising, in combination, first means defining two receptor conduits having respective outlet ports connectable to a fluid-controlled device and having respective inlet ports located adjacent each other, and including a plurality of firmly joined laminated flat members forming a unitary bendable conduit having one end provided with an inlet connectable to a source of pressure fluid and having an other end provided with an outlet and having an internal flow path extending from said outlet, said bendable conduit being mounted at said one end with such an orientation that the outlet of said bendable conduit is located in the vicinity of said inlet ports but spaced from the latter to establish a branched path for the flow of fluid from the outlet of said bendable conduit simultaneously into both of said inlet ports; and electromagnetic means operative when energized for causing said bendable conduit to bend in dependence upon the energization of said electromagnetic second means in a direction and to an extent moving the outlet of said conduit towards one of said inlet ports and away from the other of said inlet ports to increase the fluid flow into the former and decrease the fluid flow into the latter to establish a difference in the presence of fluid in the two receptor conduits indicative of the energization of said electromagnetic second means.
Claim 2
Dependent Claim
232 words
A transducer for converting electrical signals into pressurefluid signals, comprising, in combination, first means defining two receptor conduits having respective outlet ports connectable to a fluid-controlled device and having respective inlet ports located adjacent each other, and including a plurality of firmly joined laminated flat members forming a unitary bendable conduit having one end provided with an inlet connectable to a source of pressure fluid and having an other end provided with an outlet and having an internal flow path extending from said outlet, said bendable conduit being mounted at said one end with such an orientation that the outlet of said bendable conduit is located in the vicinity of said inlet ports but spaced from the latter to establish a branched path for the flow of fluid from the outlet of said bendable conduit simultaneously into both of said inlet ports; and electromagnetic means operative when energized for causing said bendable conduit to bend in dependence upon the energization of said electromagnetic second means in a direction and to an extent moving the outlet of said conduit towards one of said inlet ports and away from the other of said inlet ports to increase the fluid flow into the former and decrease the fluid flow into the latter to establish a difference in the presence of fluid in the two receptor conduits indicative of the energization of said electromagnetic second means.
Claim 3
Dependent Claim
57 words
A transducer as defined in claim 1, wherein said plurality of firmly joined laminated flat members includes at least one flat member comprising a portion having a cut-out defining at least a part of said internal flow path and comprising a further portion having another cut-out defining at least a part of one of said receptor conduits.
Claim 4
Dependent Claim
55 words
A transducer as defined in claim 1, wherein said plurality of firmly joined laminated flat members includes at least one flat member comprising a portion having a cut-out defining at least a part of said internal flow path and comprising a further portion having another cut-out defining at least part of both said receptor conduits.
Claim 5
Dependent Claim
47 words
A transducer as defined in claim 1, wherein said plurality of firmly joined laminated flat members includes at least one flat member having one cut-out defining at least a part of said internal flow path and also at least a part of one of said receptor conduits.
Claim 6
Dependent Claim
45 words
A transducer as defined in claim 1, wherein said plurality of firmly joined laminated flat members includes at least one flat member having one cut-out defining at least a part of said internal flow path and also at least part of both said receptor conduits.
Claim 7
Dependent Claim
62 words
A transducer as defined in claim 5, wherein said plurality of firmly joined laminated flat members includes two further flat members located at opposite sides of said first flat member and each having a surface portion overlying said cut-out of said one flat member and forming a wall of said internal flow path and a wall of each of said receptor conduits.
Claim 8
Dependent Claim
35 words
A transducer as defined in claim 5, wherein said outlet of said bendable conduit is of nozzle-shaped configuration, and wherein the inlet portion of each of said two receptor conduits is configurated as a difussor.
Claim 9
Dependent Claim
34 words
A transducer as defined in claim 1, wherein said plurality of firmly joined laminated flat members together form a unitary laminated Structure defining both said internal flow path and also said two receptor conduits.
Claim 10
Dependent Claim
26 words
A transducer as defined in claim 8, wherein all the flat members of said plurality of firmly joined flat members have outer peripheries of identical configuration.
Claim 11
Dependent Claim
37 words
A transducer as defined in claim 8, wherein said plurality of firmly joined flat members is composed of flat members located in different parallel layers with each of said parallel layers containing only a single flat member.
Claim 12
Dependent Claim
20 words
A transducer as defined in claim 8, wherein said electromagnetic second means comprises electromagnet coils means encircling said bendable conduit.
Claim 13
Dependent Claim
61 words
A transducer as defined in claim 11, wherein said unitary laminated structure includes four generally rectangular projections two of which are located at one axial side of said coil means at either side of said bendable conduit and the other two of which are located at the other axial side of said coil means at either side of said bendable conduit.
Claim 14
Dependent Claim
66 words
A transducer as defined in claim 12, wherein said bendable conduit of said unitary laminated structure is elongated and extends in a general direction, and wherein said unitary laminated structure includes two elongated portions substantially parallel to said general direction and located to either side of said bendable conduit and each joining together the respective two projections located as the respective side of said bendable conduit.
Claim 15
Dependent Claim
117 words
A transducer as defined in claim 13, wherein said two elongated portions define with said bendable conduit two first slots generally parallel to said elongated portions, and wherein said unitary laminated structure has two second slots extending normal to said first slots and forming a continuation of said first slots and extending towards each other and two third slots extending parallel to said first slots and located between said first slots, said bendable conduit being connected to the remainder of said unitary laminated structure solely by material located intermediate said two third slots, and wherein said internal flow path extends in direction generally parallel to said third slots through the material located intermediate said two third slots.
Claim 16
Dependent Claim
69 words
A transducer as defined in claim 12, wherein said bendable conduit at said one end thereof is provided with a plurality of claw-like projections extending in direction to either side of said bendable conduit, and wherein the two of said four generally rectangular projections adjoining said one end of said bendable conduit are each provided with recesses facing and substantially complementary to said claw-like projections of said bendable conduit.
Claim 17
Dependent Claim
75 words
A transducer as defined in claim 12, wherein said electromagnetic second means further comprises two ferromagnetic yoke members each located to one respective side of said bendable conduit and each magnetically connecting the two generally rectangular projections located at the respective side of said bendable conduit, and further including permanent magnet means having a north pole connected to one of said yoke members and a south pole connected to the other of said yoke members.
Claim 18
Dependent Claim
48 words
A transducer as defined in claim 1, wherein said electromagnetic second means comprises means operative for causing said bendable conduit to bend in dependence upon energization of said second means substantially exclusively in direction parallel to the planes occupied by the facing major surfaces of said flat members.
Claim 19
Dependent Claim
27 words
A transducer as defined in claim 1, wherein at least a portion of at least one of said plurality of flat members is comprised of ferromagnetic material.
Claim 20
Dependent Claim
17 words
A transducer as defined in claim 1, wherein said flat members are glued together in pressure-tight manner.
Claim 21
Dependent Claim
17 words
A transducer as defined in claim 1, wherein said flat members are soldered together in pressure-tight manner.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |