US3744513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake fluid tank for a hydraulic brake system
Assignee: Daimler Benz AG
•
Filing: 1971-06-04
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Granted: 1973-07-10
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Expires: 1991-06-04
Abstract
Abstract A supply reservoir for brake fluids of a hydraulic brake system, especially for vehicles, which includes at least two chambers and in which two adjacent chambers are connected by way of a pipe whose discharge openings are arranged approximately at the height of the minimum permissive fluid level in the chambers and at such a distance from the partition wall that the discharge opening projects out of the fluid level in case of an inclination of the fluid level which would be present within the chamber when the minimum permissive fluid level is reached.
Inventors
- 👤 L Leitenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:33
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/225; B60T11/00; B60T11/10; B60T11/26; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/4841
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
99 words
A supply reservoir for the brake fluid of a hydraulic brake system which includes at least two chamber means separated by a partition wall means, characterized in that two adjacent chamber means are connected with each other by a pipe means whose discharge openings are arranged approximately at the height of the minimum permissive fluid level within the chamber means at such a distance from the partition wall means that in case of an inclination of the fluid level, one discharge opening projects out of the fluid level which is established in case of a minimum permissive fluid level.
Claim 2
Dependent Claim
99 words
A supply reservoir for the brake fluid of a hydraulic brake system which includes at least two chamber means separated by a partition wall means, characterized in that two adjacent chamber means are connected with each other by a pipe means whose discharge openings are arranged approximately at the height of the minimum permissive fluid level within the chamber means at such a distance from the partition wall means that in case of an inclination of the fluid level, one discharge opening projects out of the fluid level which is established in case of a minimum permissive fluid level.
Claim 3
Dependent Claim
65 words
A supply reservoir according to claim 1, characterized in that the distance of the discharge openings to the partition wall means is so chosen that the volume enclosed by the partition wall means and a plane disposed substantially parallel thereto and passing through a respective discharge opening corresponds at least to the fluid volume present during minimum permissive fluid levels in a respective chamber means.
Claim 4
Dependent Claim
26 words
A supply reservoir with side walls according to claim 1, characterized in that the discharge openings are disposed approximately in the center between the side walls.
Claim 5
Dependent Claim
28 words
A supply reservoir according to claim 1, characterized in that the discharge openings are disposed approximately above the center of the base surface of a respective chamber means.
Claim 6
Dependent Claim
17 words
A supply reservoir according to claim 1, characterized in that the pipe means includes a throttling means.
Claim 7
Dependent Claim
24 words
A supply reservoir according to claim 1, characterized by a common filler connecting means with a single float-actuated control contact for all chamber means.
Claim 8
Dependent Claim
30 words
A supply reservoir according to claim 6, characterized in that an aperture is provided in the upper area of the partition wall means which is closed by a screen insert.
Claim 9
Dependent Claim
29 words
A supply reservoir according to claim 7, characterized in that a substantially rectilinear pipe means is provided which is arranged at the height of the minimum permissive fluid level.
Claim 10
Dependent Claim
30 words
A supply reservoir according to claim 1, characterized in that an aperture is provided in the upper area of the partition wall means which is closed by a screen insert.
Claim 11
Dependent Claim
29 words
A supply reservoir according to claim 1, characterized in that a substantially rectilinear pipe means is provided which is arranged at the height of the minimum permissive fluid level.
Claim 12
Dependent Claim
26 words
A supply reservoir according to claim 1, characterized in that a curved pipe means is provided which is arranged on the bottom of the supply reservoir.
Claim 13
Dependent Claim
18 words
A supply reservoir according to claim 11, characterized in that said curved pipe means has a substantially U-shape.
Claim 14
Dependent Claim
95 words
A supply reservoir for brake fluid of a hydraulic brake system comprising a plurality of chamber means for containing brake fluid; partition wall means for separating adjacent chamber means; and pipe means, having discharge openings disposed substantially at the level of the minimum allowable fluid level in said chamber means, for connecting adjacent chamber means, said pipe means having the discharge openings disposed at a distance from the partition wall means whereby during inclinations of the fluid level at least one discharge opening projects from the minimum allowable fluid level in the associated chamber means.
Claim 15
Dependent Claim
95 words
A supply reservoir for brake fluid of a hydraulic brake system comprising a plurality of chamber means for containing brake fluid; partition wall means for separating adjacent chamber means; and pipe means, having discharge openings disposed substantially at the level of the minimum allowable fluid level in said chamber means, for connecting adjacent chamber means, said pipe means having the discharge openings disposed at a distance from the partition wall means whereby during inclinations of the fluid level at least one discharge opening projects from the minimum allowable fluid level in the associated chamber means.
Claim 16
Dependent Claim
68 words
A fluid supply reservoir according to claim 13, wherein the discharge openings of said pipe means are disposed at a distance from said partition wall means such that the volume enclosed by said partition wall means and a plane disposed substantially parallel thereto and passing through a respective discharge opening corresponds to at least the fluid volume of the minimum allowable fluid level in a respective chamber means.
Claim 17
Dependent Claim
16 words
A fluid supply reservoir according to claim 13, wherein the pipe means includes a throttling means.
Claim 18
Dependent Claim
28 words
A fluid supply reservoir according to claim 13, further comprising side walls for each chamber means wherein said discharge openings are disposed approximately centrally between the side walls.
Claim 19
Dependent Claim
27 words
A fluid supply reservoir according to claim 13, wherein the discharge openings are disposed approximately above the center of the base surface of a respective chamber means.
Claim 20
Dependent Claim
49 words
A fluid supply reservoir according to claim 13, further comprising connecting means attached to an upper surface of said reservoir for permitting said chamber means to be commonly filled with fluid, and a single float-actuated control switch operatively connected to said connecting means for indicating a predetermined fluid level.
Claim 21
Dependent Claim
33 words
A fluid supply reservoir according to claim 13, wherein said partition wall means includes an aperture in an upper portion of said partition wall means, said aperture being closed by a screen insert.
Claim 22
Dependent Claim
33 words
A fluid supply reservoir according to claim 13, wherein said pipe means is a substantially rectilinear pipe means disposed substantially at the level of the minimum allowable fluid level in said chamber means.
Claim 23
Dependent Claim
37 words
A fluid supply reservoir according to claim 13, wherein said pipe means is formed of curved pipe means having a middle section disposed on the base surface of the reservoir, and said discharge openings are disposed upwardly.
Claim 24
Dependent Claim
16 words
A fluid supply reservoir according to claim 18, wherein said curved pipe means is substantially U-shaped.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |