Patent US3724772A successfully refreshed from Google Patents.
US3724772A
Expired / Lapsed
US
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Reel spindle
Assignee: EECO Inc
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Filing: 1971-11-11
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Granted: 1973-04-03
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Expires: 1991-11-11
Abstract
Abstract A spindle for rotatably supporting a reel having both positive and frictional engagement between the spindle and the reel. The positive engagement is made at one end of the spindle, as by means of plural pins which engage plural recesses in the reel. The frictional engagement is made at the other end of the spindle and is provided by a radially expansible elastomer which is expanded by a locking arm. This dual engagement advantageously holds two-piece reels together as well as to the spindle.
Inventors
- 👤 G Hager
- 👤 E Keech
- 👤 L Dossett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:14
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/66; G11B15/662; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
A spindle in combination with a reel having two sides with at least one hub (17) therebetween, comprising; a. a rigid spindle (1) having a shoulder (2) at one end, b. plural means (10) extending from said shoulder to positively engage one side (15) of said reel (14), c. yieldable means (5) surrounding a portion of said spindle and spaced from said shoulder, and d. a locking arm (7) attached to said spindle at the end opposite to said shoulder, having two locked and one unlocked positions, and haVing means (12) to radially expand said yieldable means substantially uniformly along the length of said yieldable means when said locking arm is in a locked position, whereby said hub (17) of said reel is frictionally engaged to said spindle along substantially the whole length of said yieldable means.
Claim 2
Dependent Claim
137 words
A spindle in combination with a reel having two sides with at least one hub (17) therebetween, comprising; a. a rigid spindle (1) having a shoulder (2) at one end, b. plural means (10) extending from said shoulder to positively engage one side (15) of said reel (14), c. yieldable means (5) surrounding a portion of said spindle and spaced from said shoulder, and d. a locking arm (7) attached to said spindle at the end opposite to said shoulder, having two locked and one unlocked positions, and haVing means (12) to radially expand said yieldable means substantially uniformly along the length of said yieldable means when said locking arm is in a locked position, whereby said hub (17) of said reel is frictionally engaged to said spindle along substantially the whole length of said yieldable means.
Claim 3
Dependent Claim
18 words
The spindle of claim 1, in which; a. said reel is two-piece, having separable sides (15 & 16).
Claim 4
Dependent Claim
24 words
The spindle of claim 1, in which; a. said yieldable means (5) is a sleeve surrounding approximately half of the length of said spindle.
Claim 5
Dependent Claim
34 words
The spindle of claim 1, in which; a. said yieldable means is formed of a material selected from the group consisting of; silicon rubber, buna N rubber, polyurethane, Neoprene, synthetic rubber, and natural rubber.
Claim 6
Dependent Claim
18 words
The spindle of claim 1, in which; a. said yieldable means has a Shore hardness of approximately 50.
Claim 7
Dependent Claim
26 words
The spindle of claim 1, which additionally includes; a. a washer (12), slidable upon said spindle, and positioned between said yieldable means and said locking arm.
Claim 8
Dependent Claim
42 words
The spindle of claim 6, in which; a. said washer (12) is formed of a single piece of rigid material, having an oblong hole in part of the axial length thereof, and a cylindrical hole in the remainder of said axial length.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |