Patent US3709332A successfully refreshed from Google Patents.
US3709332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc-type brake for thread
Assignee: Individual
•
Filing: 1971-01-04
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Granted: 1973-01-09
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Expires: 1991-01-04
Abstract
Abstract A disc-type brake for thread, with two discs mounted with freedom to rotate, these discs being pressed together by an energy store fitted on a mounting. The energy store acts on the discs eccentrically in relation to their spindle. An inclined bearing surface is provided between the discs so that the planes of rotation of the discs are at an angle to each other.
Inventors
- 👤 K Rosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:30
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/10; B65H59/20; B65H59/22; B65H59/225; B65H2555/00; B65H2555/10; B65H2555/13; B65H2701/00; B65H2701/30; B65H2701/31; D; D05; D05D; D05D2207/00; D05D2207/05; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49922
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
143 words
A disc-type brake for a thread, the combination comprising support means, a pair of rotatable discs mounted on said support means, said pair of discs being positioned adjacent one another and having opposed bearing surfaces, and actuating means for causing the bearing surfaces of said discs to be pressed against one another, the improvement wherein said actuating means acts on said discs eccentrically relative to their rotational axes for causing said opposed bearing surfaces to be pressed against one another, the bearing surface of one of said discs being nonplanar and inclined relative to the bearing surface of the other disc for causing the rotary planes of said discs to form a continuous angle between them as the discs rotate, said discs contacting one another only at a location adjacent the actuating means to form the vertex of said angle when so contacted.
Claim 2
Dependent Claim
143 words
A disc-type brake for a thread, the combination comprising support means, a pair of rotatable discs mounted on said support means, said pair of discs being positioned adjacent one another and having opposed bearing surfaces, and actuating means for causing the bearing surfaces of said discs to be pressed against one another, the improvement wherein said actuating means acts on said discs eccentrically relative to their rotational axes for causing said opposed bearing surfaces to be pressed against one another, the bearing surface of one of said discs being nonplanar and inclined relative to the bearing surface of the other disc for causing the rotary planes of said discs to form a continuous angle between them as the discs rotate, said discs contacting one another only at a location adjacent the actuating means to form the vertex of said angle when so contacted.
Claim 3
Dependent Claim
55 words
A disc-type brake according to claim 1, wherein the bearing surface of said one disc is of a conical configuration which is substantially concentric with the rotational axis of said one disc, the conical configuration of the bearing surface on said one disc converging in a direction toward the bearing surface of said other disc.
Claim 4
Dependent Claim
18 words
A disc-type brake according to claim 2, wherein the bearing surface on said other disc is substantially planar.
Claim 5
Dependent Claim
23 words
A disc-type brake according to claim 1, wherein the nonparallel and inclined bearing surface is made of one piece with said one disc.
Claim 6
Dependent Claim
32 words
A disc-type brake according to claim 1, wherein the actuating means comprises a magnet, one of said discs comprising a magnetizable material and the other of said discs comprising a nonmagnetizable material.
Claim 7
Dependent Claim
15 words
A disc-type brake according to claim 5, wherein the actuating means comprises a permanent magnet.
Claim 8
Dependent Claim
43 words
A disc-type brake according to claim 5, further including means mounting said magnet for adjustable movement thereof toward and away from the discs for varying the force of the magnet on the discs causing the bearing surfaces to be pressed against one another.
Claim 9
Dependent Claim
56 words
A disc-type brake according to claim 1, wherein one of said discs has a central opening therein, and the other of said discs having a central hub fixedly secured thereto and extending axially outwardly beyond the Bearing surface thereof, said hub extending through the central opening of said one disc for movably supporting said other disc.
Claim 10
Dependent Claim
82 words
A disc-type brake according to claim 8, wherein the free end of said hub has a radially outwardly extending flange thereon, and wherein said one disc has a plurality of resilient tabs positioned in surrounding relationship to the central opening for enabling said flange to be passed through said opening due to resilient deflection of said tabs, whereby said tabs then return to their normal position wherein they project radially inwardly beyond said flange for retaining said one disc on said hub.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |