US3722929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hub-core assembly
Assignee: Terminal Data Corp
•
Filing: 1971-01-20
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Granted: 1973-03-27
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Expires: 1991-01-20
Abstract
Abstract A hub-core assembly in which nominal deformation of a radial projection upon the hub serves to removably secure the surrounding core to the hub. The projection engages a slot in the core and is circumferentially deformed by such engagement. The projection is formed with a small angle with respect to the axis of rotation of the hub. The projection may have a central open slit to facilitate resilient deformation focushioning the assembly during rapid starts and stops.
Inventors
- 👤 S Gilman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:32
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0876; B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7026; Y10T403/7035; Y10T403/7047; Y10T403/7061
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
68 words
A hub for rotating a core comprising; (a) a cylindrical rotatable hub (1) having at least one circumferentially deformable integral radially-projecting projection (4), disposed at an angle to the axis of rotation (6) of said hub less than the frictional angle for the materials used, and (b) at least one slit (12) formed along the full length of each said projection (4) and open at only one end.
Claim 2
Dependent Claim
68 words
A hub for rotating a core comprising; (a) a cylindrical rotatable hub (1) having at least one circumferentially deformable integral radially-projecting projection (4), disposed at an angle to the axis of rotation (6) of said hub less than the frictional angle for the materials used, and (b) at least one slit (12) formed along the full length of each said projection (4) and open at only one end.
Claim 3
Dependent Claim
15 words
The hub of claim 1 in which said slit is centrally disposed along said projection.
Claim 4
Dependent Claim
23 words
The hub of claim 1 which includes two open slits (22,23) formed in and along substantially the full length of said projection (4).
References Cited (Backward Citations)
US691759A
Cited
US1397530A
Cited
US1803995A
Cited
US2089168A
Cited
US2466097A
Cited
US2900202A
Cited
US3456892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |