Patent AU489294B2 successfully refreshed from Google Patents.
AU489294B2
Expired / Lapsed
AU
⏱️ 0.0 years remaining
Improvements in decs for dec brakes
Assignee: Girling Ltd
•
Filing: 1975-09-22
•
Granted: 1977-03-31
•
Expires: 1995-09-22
Abstract
No abstract record available.
Inventors
- 👤 William Carreon Anthony
Bibliographic Details
Application Number
—
Jurisdiction
AU
Data Source
google_patents
Last Synchronized
2026-11-08 21:24
CPC Classifications
—
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
113 words
A disc for a disc brake comprising a central plate adapted to be mounted on a rotatable part, two identical braking portions located one on each side of the central plate and each comprising an annulus and providing a radial braking surface on its outer side having at its inner sideangularly spaced axially extending radial vanes of which the free ends abut and are held against the central plate, clamping means having a certain amount of resilience for holding the braking portions in engagement with the central plate, and coupling means for transmitting torque from the braking portions to the central plate and for maintaining the braking portions concentric with the central plate.
Claim 2
Dependent Claim
113 words
A disc for a disc brake comprising a central plate adapted to be mounted on a rotatable part, two identical braking portions located one on each side of the central plate and each comprising an annulus and providing a radial braking surface on its outer side having at its inner sideangularly spaced axially extending radial vanes of which the free ends abut and are held against the central plate, clamping means having a certain amount of resilience for holding the braking portions in engagement with the central plate, and coupling means for transmitting torque from the braking portions to the central plate and for maintaining the braking portions concentric with the central plate.
Claim 3
Dependent Claim
17 words
A disc as claimed in Claim 1, in which the vanes are tapered in an axial direction.
Claim 4
Dependent Claim
42 words
A disc as claimed in Claim 1 or Claim 2, in which portions of the free edges of the vanes are cut away or cut back to reduce to a minimum the area of contact of the vanes with the central plate.
Claim 5
Dependent Claim
28 words
A disc as claimed in Claim 3, in which the free edges of the vanes at their radially inner and outer ends are cut away or set back.
Claim 6
Dependent Claim
39 words
A disc as claimed in any preceding claims in which the clamping means comprises a band which encircles the braking portions and has inwardly directed cranked edges which are engaged in notches in the outer edges of the vanes.
Claim 7
Dependent Claim
23 words
A disc as claimed in Claim 5, in which the band comprises a strip having free ends which after assembly are welded together.
Claim 8
Dependent Claim
36 words
A disc as claimed in any preceding claims in the which the coupling means comprises roll pins received in central plate and at opposite ends in the adjacent vanes of both braking portions. .7. 489294 055/75
Claim 9
Dependent Claim
25 words
A disc as claimed in Claim 7, in which the pins are fixed in the central plate and 'are engaged in grooves in the vanes.
Claim 10
Dependent Claim
29 words
A disc as claimed in Claim 7, in which the pins are a good fit in holes in the vane area and slide in slots in the central plate.
Claim 11
Dependent Claim
18 words
A disc as claimed in any preceding claim in which radial slots are provided in the central plate.
Claim 12
Dependent Claim
25 words
A disc as claimed in any preceding claim in which annular guards or deflectors are mounted on one or each side of the central plate.
Claim 13
Dependent Claim
58 words
A disc for a disc brake substantially as described with reference to and as illustrated in the accompanying drawings. DATED TEIS 18TH DAY OF SEPTEMBER, 1975. GIRLING LIMITED By Its Patent Attorneys CLEMENT HACK CO. Fellows Institute of Patent Attorneys of Australia 055 175 055./75 8 9 9 4 6 FIG.2IL 8 7, 8 -g8 FIG., 3. 4892!
Claim 14
Dependent Claim
58 words
A disc for a disc brake substantially as described with reference to and as illustrated in the accompanying drawings. DATED TEIS 18TH DAY OF SEPTEMBER, 1975. GIRLING LIMITED By Its Patent Attorneys CLEMENT HACK CO. Fellows Institute of Patent Attorneys of Australia 055 175 055./75 8 9 9 4 6 FIG.2IL 8 7, 8 -g8 FIG., 3. 4892!
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.