US4166622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centering collar for a disk hub
Assignee: Individual
•
Filing: 1978-02-13
•
Granted: 1979-09-04
•
Expires: 1998-02-13
Abstract
Abstract A collar construction for a disk hub in which the interior of the collar is adapted with a plurality of cylinders truncated in a shape mating with portions of a spindle to which the hub is fit. The cylinders have longitudinal slots extending partially therethrough allowing compression of the cylinders when in contact with a spindle. The collar is used for centering a disk on a spindle.
Inventors
- 👤 Edgar A. Rager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:31
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/022; G11B17/028; G11B17/0282; G11B23/00; G11B23/0014; G11B23/0021; G11B23/0028; G11B23/0035; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7049; Y10T403/7061
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
Apparatus for centering a member on a rotating spindle comprising, an annular member defining a central hole with dimensions greater than corresponding outside dimensions of the rotating spindle on which said annular member is intended to fit, said annular member having a geometric center corresponding to the axis of rotation of the spindle, said annular member having a plurality of indentations spaced at intervals facing said central hole, and a plurality of compression members, each shaped to fit in an interlocking relationship with an indentation of said annular member and partially projecting into said hole, said compression members having a finger portion compressibly connected to the remainder of said compression member, said finger shaped to snugly contact corresponding portions of a spindle so that said annular member is centered on said spindle.
Claim 2
Dependent Claim
132 words
Apparatus for centering a member on a rotating spindle comprising, an annular member defining a central hole with dimensions greater than corresponding outside dimensions of the rotating spindle on which said annular member is intended to fit, said annular member having a geometric center corresponding to the axis of rotation of the spindle, said annular member having a plurality of indentations spaced at intervals facing said central hole, and a plurality of compression members, each shaped to fit in an interlocking relationship with an indentation of said annular member and partially projecting into said hole, said compression members having a finger portion compressibly connected to the remainder of said compression member, said finger shaped to snugly contact corresponding portions of a spindle so that said annular member is centered on said spindle.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 wherein each compression member is disposed in an indentation of said annular member by means of an interlocking connection therebetween.
Claim 4
Dependent Claim
44 words
The apparatus of claim 1 wherein each compression member is a cylinder truncated by an arc whose origin corresponds to the geometric center of said annular member and having a longitudinal slot partially therethrough separating said finger from the remainder of said compression member.
Claim 5
Dependent Claim
15 words
The apparatus of claim 1 wherein said indentations are equally spaced in said annular member.
Claim 6
Dependent Claim
14 words
The apparatus of claim 4 wherein the number of indentations is at least three.
Claim 7
Dependent Claim
106 words
In a hub for a disk recording medium of the type in which the hub has an inside perimeter which is fit onto a rotating spindle, the improvement comprising, a plurality of cylinders, truncated in a shape mating with a portion of a rotating spindle to which said hub is fit, said cylinders affixed to the inside perimeter of the hub, for causing the center of said hub to coincide with the rotational axis of the spindle, said truncated cylinders having a longitudinal slot extending partially therethrough for allowing compression of said cylinders when in contact with a spindle, thereby centering said hub on said spindle.
Claim 8
Dependent Claim
106 words
In a hub for a disk recording medium of the type in which the hub has an inside perimeter which is fit onto a rotating spindle, the improvement comprising, a plurality of cylinders, truncated in a shape mating with a portion of a rotating spindle to which said hub is fit, said cylinders affixed to the inside perimeter of the hub, for causing the center of said hub to coincide with the rotational axis of the spindle, said truncated cylinders having a longitudinal slot extending partially therethrough for allowing compression of said cylinders when in contact with a spindle, thereby centering said hub on said spindle.
Claim 9
Dependent Claim
26 words
The apparatus of claim 6 wherein said cylinders are affixed to the inside perimeter of said hub by interlocking placement in indentations defined in said perimeter.
References Cited (Backward Citations)
US3360208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-03 | 1983-03-05 | 1983-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-03 | 1987-03-05 | 1987-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-03 | 1991-03-05 | 1991-09-04 | $7700.00 | Window Closed / Lapsed |