US3981132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for supporting a spindle of an open-end spinning apparatus
Assignee: Toyota Industries Corp
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Filing: 1975-10-20
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Granted: 1976-09-21
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Expires: 1995-10-20
Abstract
Abstract An improved device for supporting a spindle of an open-end spinning apparatus is provided with a ring shaped resiliently yieldable member rigidly disposed in a space between a bearing supporting the spindle and an inside cylindrical wall of a bushing member, and an additional ring shaped member rigidly disposed in the above-mentioned space separately from the resiliently yieldable member. To prevent accumulation of heat in the spindle, a plurality of grooves are formed on the peripheral surface of the bearing and/or inside surface of the resiliently yieldable member, and/or the additional member, respectively.
Inventors
- 👤 Tsutomu Miyazaki
- 👤 Takashi Kato
- 👤 Noriaki Miyamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:11
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/04; D01H4/08; D01H4/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
In a device for supporting a spindle of an open end spinning apparatus of the type having a spinning chamber coaxially secured to an end of said spindle, said spindle being driven by a driving belt at a free end thereof, a frame support rigidly mounted on said spinning apparatus, a cylindrical bushing member secured to said frame support, a bearing rotatably supporting said spindle, and a ring shaped resilient yieldable member rigidly inserted in a space between said cylindrical bushing member and said bearing for supporting said bearing; the improvement comprising an additional ring shaped member rigidly positioned at a location adjacent to said spinning chamber in said space and spaced from said resiliently yieldable member along the spindle axis for restricting the arc through which the spinning chamber of the spindle may move.
Claim 2
Dependent Claim
135 words
In a device for supporting a spindle of an open end spinning apparatus of the type having a spinning chamber coaxially secured to an end of said spindle, said spindle being driven by a driving belt at a free end thereof, a frame support rigidly mounted on said spinning apparatus, a cylindrical bushing member secured to said frame support, a bearing rotatably supporting said spindle, and a ring shaped resilient yieldable member rigidly inserted in a space between said cylindrical bushing member and said bearing for supporting said bearing; the improvement comprising an additional ring shaped member rigidly positioned at a location adjacent to said spinning chamber in said space and spaced from said resiliently yieldable member along the spindle axis for restricting the arc through which the spinning chamber of the spindle may move.
Claim 3
Dependent Claim
154 words
In a device for supporting a spindle of the open-end spinning apparatus provided with a spinning chamber coaxially secured to an end of said spindle, a driving belt driving said spindle at a free end thereof, a frame support rigidly mounted on said spinning apparatus, a bearing rotatably supporting said spindle, a cylindrical bushing member secured to said frame support, and a ring shaped resiliently yieldable member rigidly inserted in a space between said cylindrical bushing member and said bearing, an improvement comprising an additional ring shaped member rigidly inserted in said space independently from said resiliently yieldable member and spaced therefrom, said additional member secured to the inside cylindrical wall of said bushing member with a very small annular clearance between the peripheral surface of said bearing member and the inside surface of said additional ring shape member for restricting the arc through which the spinning chamber end of the spindle may move.
Claim 4
Dependent Claim
154 words
In a device for supporting a spindle of the open-end spinning apparatus provided with a spinning chamber coaxially secured to an end of said spindle, a driving belt driving said spindle at a free end thereof, a frame support rigidly mounted on said spinning apparatus, a bearing rotatably supporting said spindle, a cylindrical bushing member secured to said frame support, and a ring shaped resiliently yieldable member rigidly inserted in a space between said cylindrical bushing member and said bearing, an improvement comprising an additional ring shaped member rigidly inserted in said space independently from said resiliently yieldable member and spaced therefrom, said additional member secured to the inside cylindrical wall of said bushing member with a very small annular clearance between the peripheral surface of said bearing member and the inside surface of said additional ring shape member for restricting the arc through which the spinning chamber end of the spindle may move.
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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) | 1979-09-21 | 1980-03-22 | 1980-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-21 | 1984-03-22 | 1984-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-21 | 1988-03-22 | 1988-09-21 | $7700.00 | Window Closed / Lapsed |