Patent US3563351A successfully refreshed from Google Patents.
US3563351A
Expired / Lapsed
US
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Antiskid brake control apparatus for sensing changes in the absolute rotational speed of a vehicle wheel
Assignee: Robert Bosch GmbH
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Filing: 1969-04-18
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Granted: 1971-02-16
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Expires: 1989-04-18
Abstract
Abstract An antiskid brake control system having means for sensing changes in the absolute rotational speed of a vehicle wheel. The sensing means includes a hermetically sealed housing, an inertial mass arranged within the housing and rotatable relative to the housing within a limited angular range, an electrical signaling device responsive to the relative rotation between the inertial mass and the housing and at least one electrical conductor connected to the signaling device and passing through the housing. The brake control system is also provided with an electrically actuatable device for controlling the brake pressure applied to the sensed wheel and an electrical line interconnecting the sensing means with this control device. According to the invention, the sensor housing and the vehicle wheel or a member rigidly connected with the vehicle wheel are provided with means for detachably coupling these two parts together. Contact elements are also provided, beneath the side of the sensor housing that faces the wheel, to detachably connect the electrical line to the electrical conductor.
Inventors
- 👤 Heinz Leiber
- 👤 Heinz Wehde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:45
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/72; B60T8/74; G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; A; A61; A61C; A61C2204/00; A61C2204/002
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
141 words
An antiskid brake control system for wheeled vehicles comprising electrically actuatable means for controlling the brake pressure applied to a wheel; means for sensing changes in the absolute rotational speed of such wheel, said sensing means comprising a hermetically sealed housing, an inertial mass arranged within said housing and rotatable relative to said housing within a limited angular range, electrical signaling means responsive to the relative rotation between said mass and said housing and at least one insulated electrical conductor connected to said signaling means and passing through said housing; an electrical line connecting said sensing means with said brake pressure control means; connecting means, associated with said housing and such wheel, for detachably connecting said housing to such wheel; and electrical contact means, arranged on one siDe of said housing, for detachably connecting said electrical line with said electrical conductor.
Claim 2
Dependent Claim
141 words
An antiskid brake control system for wheeled vehicles comprising electrically actuatable means for controlling the brake pressure applied to a wheel; means for sensing changes in the absolute rotational speed of such wheel, said sensing means comprising a hermetically sealed housing, an inertial mass arranged within said housing and rotatable relative to said housing within a limited angular range, electrical signaling means responsive to the relative rotation between said mass and said housing and at least one insulated electrical conductor connected to said signaling means and passing through said housing; an electrical line connecting said sensing means with said brake pressure control means; connecting means, associated with said housing and such wheel, for detachably connecting said housing to such wheel; and electrical contact means, arranged on one siDe of said housing, for detachably connecting said electrical line with said electrical conductor.
Claim 3
Dependent Claim
20 words
The improvement defined in claim 1, wherein said connecting means is arranged to directly connect said housing to said wheel.
Claim 4
Dependent Claim
34 words
The improvement defined in claim 1, wherein said connecting means includes a member which is rigidly connected to said wheel and said connecting means is arranged to directly connect said housing to said member.
Claim 5
Dependent Claim
22 words
The improvement defined in claim 1, wherein said contact means are arranged on the side of said housing which faces said wheel.
Claim 6
Dependent Claim
54 words
The improvement defined in claim 1, wherein said contact means are constructed to provide an automatic connection between said electrical line and said electrical conductor when said sensing means is attached to said wheel and to automatically disconnect said electrical line from said electrical conductor when said sensing means is removed from said wheel.
Claim 7
Dependent Claim
47 words
The improvement defined in claim 1, further comprising means for transmitting a signal, during the rotation of said wheel, from said electrical signaling means in said sensing means to said means for controlling the brake pressure, said signal transmitting means being separately arranged from said sensing means.
Claim 8
Dependent Claim
34 words
The improvement defined in claim 6, wherein said wheel is mounted on at least one wheel bearing and said signal transmitting means is arranged in the proximity of said at least one wheel bearing.
Claim 9
Dependent Claim
19 words
The improvement defined in claim 1, wherein said sensing means is arranged on a common axis with said wheel.
Claim 10
Dependent Claim
89 words
The improvement defined in claim 1, wherein said sensing means is arranged eccentrically with respect to the axis of said wheel. 10, The improvement defined in claim 8, wherein said wheel is arranged to rotate about a nonrotatable axle, and wherein said electrical contact means include first contact element means fastened to the outer end of said axle and second contact element means fastened to said one side of said housing of said sensing means, said first and second contact element means being in slidable contact with one another.
Claim 11
Dependent Claim
30 words
The improvement defined in claim 10, wherein said first and second contact element means are in slidable contact at a single point, said point being arranged on said common axis.
Claim 12
Dependent Claim
28 words
The improvement defined in claim 8, wherein said wheel is connected to a rotatable axle, and wherein said electrical contact means is arranged to rotate with said axle.
Claim 13
Dependent Claim
40 words
The improvement defined in claim 8, wherein said wheel includes a detachable wheel rim having a central opening, and wherein said housing of said sensing means has a maximum width which is less than the diameter of said central opening.
Claim 14
Dependent Claim
40 words
The improvement defined in claim 1, wherein said wheel is arranged to rotate on an axle having a cavity in the outer end thereof, and wherein at least a portion of said electrical contact means is arranged in said cavity.
Claim 15
Dependent Claim
31 words
The improvement defined in claim 1, wherein said wheel is arranged to rotate on an axle having a bore extending longitudinally therein, and wherein said electrical line passes through said bore.
Claim 16
Dependent Claim
32 words
The improvement defined in claim 1, wherein said sensing means is electrically connected to said brake control means through the ground connection between said wheel and the chassis of said wheeled vehicle.
Claim 17
Dependent Claim
52 words
The improvement defined in claim 16, wherein the brake pressure applied to said wheel is applied by means of at least one brakeshoe, and wherein said at least one brakeshoe contains a metal insert connected to said chassis of said vehicle for reducing the ground resistance between said wheel and said chassis.
Claim 18
Dependent Claim
22 words
The improvement defined in claim 17, wherein said metal insert is arranged to wear down together with said at least one brakeshoe.
Claim 19
Dependent Claim
25 words
The improvement defined in claim 6, wherein said signal transmitting means includes two electromagnetically coupled annular coils arranged on a common axis with said wheel.
Claim 20
Dependent Claim
47 words
The improvemenT defined in claim 3, wherein said sensing means is arranged on said member, eccentrically with respect to the axis of said wheel, and wherein said member is an annular disc having counterweight means, arranged diametrically opposite to said sensing means, for balancing said sensing means.
Claim 21
Dependent Claim
51 words
The improvement defined in claim 20, wherein said wheel includes a wheel hub, a wheel rim and a plurality of bolts for attaching said rim to said hub, and wherein said member is attached to said wheel rim and said wheel hub with at least some of said plurality of bolts.
References Cited (Backward Citations)
US3477765A
Cited
US3503653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |