Patent US656732A successfully refreshed from Google Patents.
Patent US3661232A successfully refreshed from Google Patents.
US3661232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spot type disk brake
Assignee: Aisin Corp
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Filing: 1970-03-24
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Granted: 1972-05-09
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Expires: 1990-03-24
Abstract
Abstract A spot type disk brake for wheels comprising a rotatable disk, two friction linings and backing plates secured thereto on mutually opposite flat sides of the disk, one of which is located between one of two pistons slidably fitted in a cylinder and the disk, two parallel pins for supporting the friction linings and backing plates, a reaction transfer plate engaged with the other piston and with a support member which abuts back to back the other backing plate whereby the worn out linings with the backing plates may be easily detached from the brake mechanism after removing the pins.
Inventors
- 👤 Toshio Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:26
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226; F16D55/2262; F16D2055/0004; F16D2055/0016; F16D2055/0025
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
210 words
A spot type disc brake for a vehicle wheel comprising a brake disc rotatable with the wheel, hydraulic means provided with two members movable in opposed directions and located on one side of said brake disc, a first friction lining and backing plate secured thereto located on one side of said brake disc and actuated by one of said movable members, a second friction lining and backing plate secured thereto located on the other side of said brake disc, said backing plates being provided with slots therein, two parallel pins removably fixed to said hydraulic means and passing through said slots for supporting said backing plates and friction linings, a support member disposed back to back with said second backing plate and having slots aligned with the slots in said backing plates for receiving said pins therethrough for support by said pins, a reaction transfer plate actuated on one inner edge thereof by said other movable member, said support member including a main body bearing against said second backing plate and at least one projecting means for resiliently receiving the opposite inner edge of said reaction transfer plate, whereby when said pins are removed, said friction linings and backing plates may be removed without displacement of said reaction transfer plate.
Claim 2
Dependent Claim
210 words
A spot type disc brake for a vehicle wheel comprising a brake disc rotatable with the wheel, hydraulic means provided with two members movable in opposed directions and located on one side of said brake disc, a first friction lining and backing plate secured thereto located on one side of said brake disc and actuated by one of said movable members, a second friction lining and backing plate secured thereto located on the other side of said brake disc, said backing plates being provided with slots therein, two parallel pins removably fixed to said hydraulic means and passing through said slots for supporting said backing plates and friction linings, a support member disposed back to back with said second backing plate and having slots aligned with the slots in said backing plates for receiving said pins therethrough for support by said pins, a reaction transfer plate actuated on one inner edge thereof by said other movable member, said support member including a main body bearing against said second backing plate and at least one projecting means for resiliently receiving the opposite inner edge of said reaction transfer plate, whereby when said pins are removed, said friction linings and backing plates may be removed without displacement of said reaction transfer plate.
Claim 3
Dependent Claim
30 words
A spot type disc brake as claimed in claim 1, wherein said at least one projecting means consists of a pair of resilient projections formed integrally with said main body.
Claim 4
Dependent Claim
34 words
A spot type disc brake as claimed in claim 1 wherein said at least one projecting means consists of a pair of resilient projections securely attached to the main body of said support member.
Claim 5
Dependent Claim
39 words
A spot type disc brake as claimed in claim 1 wherein said at least one projecting means consists of one resilient projection adapted to resiliently engage one side of the other opposite inner edge of said reaction transfer plate.
References Cited (Backward Citations)
US3245500A
Cited
US3493084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |