Patent US3724294A successfully refreshed from Google Patents.
US3724294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulating installation of a hydraulic control system, especially in vehicle transmissions
Assignee: Daimler Benz AG
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Filing: 1971-04-12
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Granted: 1973-04-03
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Expires: 1991-04-12
Abstract
Abstract A regulating installation for the working or shifting pressure of a hydraulic control system, especially of an automatic vehicle transmission, in which a bimetallic spring circumcirculated by the hydraulic medium is built into the regulating installation, which spring is fixedly mounted at one end and which abuts with the other end at least within a predetermined temperature range at the regulating installation.
Inventors
- 👤 H Gaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:36
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/0021; F15; F15B; F15B21/00; F15B21/04; F15B21/045; F16H59/00; F16H59/68; F16H59/72; Y; Y10; Y10S; Y10S74/00; Y10S74/01
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
161 words
In a regulating installation for controlling the operating pressure and control pressure of a hydraulic medium of an automatic vehicle transmission which installation includes a regulating slide valve meanS having a piston-like end surface and control edge portions, the regulating slide valve means having the pressure medium supplied thereto for providing in dependence upon the position of the control edge portions at least one of a modulating pressure to an amplifier means and a recycling of the pressure medium, the regulating slide valve means being acted on in one direction by the modulating pressure and in the other direction by diaphragm means operatively connected with the suction pipe vacuum of a vehicle engine, the improvement comprising a bimetallic spring means circumcirculated by the hydraulic medium, said bimetallic spring means having one end fixedly mounted at a part of the regulating installation and having the other end thereof abutting at least within a predetermined temperature range at the regulating slide valve means.
Claim 2
Dependent Claim
161 words
In a regulating installation for controlling the operating pressure and control pressure of a hydraulic medium of an automatic vehicle transmission which installation includes a regulating slide valve meanS having a piston-like end surface and control edge portions, the regulating slide valve means having the pressure medium supplied thereto for providing in dependence upon the position of the control edge portions at least one of a modulating pressure to an amplifier means and a recycling of the pressure medium, the regulating slide valve means being acted on in one direction by the modulating pressure and in the other direction by diaphragm means operatively connected with the suction pipe vacuum of a vehicle engine, the improvement comprising a bimetallic spring means circumcirculated by the hydraulic medium, said bimetallic spring means having one end fixedly mounted at a part of the regulating installation and having the other end thereof abutting at least within a predetermined temperature range at the regulating slide valve means.
Claim 3
Dependent Claim
49 words
A regulating installation according to claim 1, characterized in that a spiral spring means is provided as bimetallic spring means whose inner end is fixedly held whereas the outer end, which is movable in dependence on the temperature, is in the movement path of the regulating slide valve means.
Claim 4
Dependent Claim
44 words
A regulating installation according to claim 2, characterized in that the regulating slide valve means includes two abutments for the bimetallic spring means on mutually opposite sides of the free end of the bimetallic spring means and disposed at a distance from one another.
Claim 5
Dependent Claim
40 words
A regulating installation according to claim 3, characterized in that the free end of the bimetallic spring means includes a fork-shaped portion which surrounds a neck-shaped extension of the regulating slide valve means provided at one end with a collar.
Claim 6
Dependent Claim
24 words
A regulating installation according to claim 4, characterized in that said fork-shaped portion is formed by the free end of the bimetallic spring means.
Claim 7
Dependent Claim
24 words
A regulating installation according to claim 4, characterized in that the fork-shaped portion is secured at the free end of the bimetallic spring means.
Claim 8
Dependent Claim
42 words
A regulating installation according to claim 4, characterized in that a compression spring means is provided between the free end of the bimetallic spring means and the collar mounted at the end of the neck-shaped extension of the regulating slide valve means.
Claim 9
Dependent Claim
27 words
A regulating installation according to claim 7, characterized in that a rotatable and lockable fastening means is provided for the fixed end of the bimetallic spring means.
Claim 10
Dependent Claim
31 words
A regulating installation according to claim 8, characterized in that a pivotal lever means adapted to be locked serves as fastening means for the fixed end of the bimetallic spring means.
Claim 11
Dependent Claim
21 words
A regulating installation according to claim 9, characterized in that said lever is adapted to be fixed by a threaded means.
Claim 12
Dependent Claim
53 words
A regulating installation according to claim 10, characterized in that the bimetallic spring means engages at the regulating slide valve means that abuts at a diaphragm spring of the diaphragm means which is acted upon by a diaphragm of the diaphragm means operatively connected with the suction pipe vacuum of the vehicle engine.
Claim 13
Dependent Claim
40 words
A regulating installation according to claim 1, characterized in that the free end of the bimetallic spring means includes a fork-shaped portion which surrounds a neck-shaped extension of a regulating slide valve means provided at one end with a collar.
Claim 14
Dependent Claim
24 words
A regulating installation according to claim 12, characterized in that said fork-shaped portion is formed by the free end of the bimetallic spring means.
Claim 15
Dependent Claim
24 words
A regulating installation according to claim 12, characterized in that the fork-shaped portion is secured at the free end of the bimetallic spring means.
Claim 16
Dependent Claim
42 words
A regulating installation according to claim 12, characterized in that a compression spring means is provided between the free end of the bimetallic spring means and the collar mounted at the end of the neck-shaped extension of the regulating slide valve means.
Claim 17
Dependent Claim
27 words
A regulating installation according to claim 12, characterized In that a rotatable and lockable fastening means is provided for the fixed end of the bimetallic spring means.
Claim 18
Dependent Claim
31 words
A regulating installation according to claim 16, characterized in that a pivotal lever means adapted to be locked serves as fastening means for the fixed end of the bimetallic spring means.
Claim 19
Dependent Claim
21 words
A regulating installation according to claim 17, characterized in that said lever is adapted to be fixed by a threaded means.
Claim 20
Dependent Claim
53 words
A regulating installation according to claim 1, characterized in that the bimetallic spring means engages at a regulating slide valve means that abuts at a diaphragm spring of the diaphragm means which is acted upon by a diaphragm of the diaphragm means operatively connected with the suction pipe vacuum of the vehicle engine.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |