US3707207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spot disc brakes for vehicles
Assignee: Aisin Corp
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Filing: 1970-09-04
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Granted: 1972-12-26
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Expires: 1990-09-04
Abstract
Abstract Spot disc brakes particularly for use on heavy vehicles comprising plural brake discs, wherein one brake disc is securely mounted on a rotatable sleeve and is provided with a plurality of axially extended splines thereon, while the other brake disc is mounted slidably in its axial direction on and along the splines of said secured brake disc.
Inventors
- 👤 Toshio Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:37
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/24; F16D55/26; F16D55/28; F16D55/32; F16D55/02; F16D55/025; F16D2055/0004; F16D2055/0062
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
166 words
Spot disc brakes for vehicles comprising, a non-rotatable shaft, a sleeve mounted on said shaft through bearings and rotatable with a wheel of the vehicle, a first brake disc fixed to said rotatable sleeve and provided with splines, a second brake disc mounted on the splines of said first brake disc and slidable in its axial direction and rotatable with said first brake disc, supporting pins mounted on a fixed member of the vehicle, hydraulic actuating means straddling over the outer peripheries of said discs and slidably supported by said supporting pins, a first friction pad frictionally engageable with said first brake disc by said hydraulic actuating means, a second friction pad frictionally engageable with said second brake disc by said hydraulic actuating means, and a further friction pad provided between said first and second brake discs and slidably supported by said supporting pins, said further friction pad being axially slidable by said second brake disc for frictionally engaging with said first and second brake discs.
Claim 2
Dependent Claim
166 words
Spot disc brakes for vehicles comprising, a non-rotatable shaft, a sleeve mounted on said shaft through bearings and rotatable with a wheel of the vehicle, a first brake disc fixed to said rotatable sleeve and provided with splines, a second brake disc mounted on the splines of said first brake disc and slidable in its axial direction and rotatable with said first brake disc, supporting pins mounted on a fixed member of the vehicle, hydraulic actuating means straddling over the outer peripheries of said discs and slidably supported by said supporting pins, a first friction pad frictionally engageable with said first brake disc by said hydraulic actuating means, a second friction pad frictionally engageable with said second brake disc by said hydraulic actuating means, and a further friction pad provided between said first and second brake discs and slidably supported by said supporting pins, said further friction pad being axially slidable by said second brake disc for frictionally engaging with said first and second brake discs.
Claim 3
Dependent Claim
37 words
The spot disc brakes as defined in claim 1 and wherein said hydraulic actuating means comprises a cylinder housing straddling over the outer peripheries of said discs, and a hydraulic piston slidably fitted in said cylinder housing.
Claim 4
Dependent Claim
29 words
The spot disc brakes as defined in claim 1 and wherein said first friction pad is supported and axially guided by an inner rib provided on said fixed member.
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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |