Patent US3852297A successfully refreshed from Google Patents.
Patent US3603435A successfully refreshed from Google Patents.
US3603435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cooled disc brake rotor
Assignee: Individual
•
Filing: 1969-10-16
•
Granted: 1971-09-07
•
Expires: 1989-10-16
Abstract
Abstract An aircraft wheel disc brake rotor having a pair of disc members joined together by curved support rib elements mounted in raised relation on, and arranged to channel cooling air over the internal surfaces of the disc members. This cooling air, which is centrifugally directed by rotational movement of the disc members, is supplied through openings provided in either the rotor itself or in the rotor axle. The internal surface of each disc member is further fabricated with a series of grooves formed into a curvilinear ridge pattern that both provides a greater cooling surface area and ensures more efficient control and direction of the cooling air.
Inventors
- 👤 Wallace C Buzzard
- 👤 Joseph E Krysiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:55
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/12; F16D65/128; F16D2065/13; F16D2065/1304; F16D2065/132; F16D2065/134; F16D2065/1344
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
In a wheel brake assembly, a brake rotor subassembly comprising; a pair of substantially identical, and opposed and reversely oriented axially spaced rotor plate members; and hollow shaft-support means extending outwardly and coaxially from said plate members but discontinuous between said plate members and openings in said shaft means located axially outside said plate members for admitting air to the inside of said hollow shaft and thence through the discontinuity to the space between the plate members; each of said rotor plate members having a smooth-faced, external, brake-applying surface on the side thereof facing outwardly away from the other of said rotor plate members, and an internal, heat-dissipating surface on the side thereof facing inwardly towards the other of said rotor plate members; each of said internal, heat-dissipating surfaces being configured across the entire face thereof with a series of closely spaced, arcuateshaped grooves; and a plurality of equally spaced, arcuate shaped, air channelling ribs extending between and attached to said heat dissipating surfaces, said ribs acting together with said grooves to centrifugally pump air from said hollow shaft across said heat dissipating surfaces.
Claim 2
Dependent Claim
184 words
In a wheel brake assembly, a brake rotor subassembly comprising; a pair of substantially identical, and opposed and reversely oriented axially spaced rotor plate members; and hollow shaft-support means extending outwardly and coaxially from said plate members but discontinuous between said plate members and openings in said shaft means located axially outside said plate members for admitting air to the inside of said hollow shaft and thence through the discontinuity to the space between the plate members; each of said rotor plate members having a smooth-faced, external, brake-applying surface on the side thereof facing outwardly away from the other of said rotor plate members, and an internal, heat-dissipating surface on the side thereof facing inwardly towards the other of said rotor plate members; each of said internal, heat-dissipating surfaces being configured across the entire face thereof with a series of closely spaced, arcuateshaped grooves; and a plurality of equally spaced, arcuate shaped, air channelling ribs extending between and attached to said heat dissipating surfaces, said ribs acting together with said grooves to centrifugally pump air from said hollow shaft across said heat dissipating surfaces.
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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |