Patent US6289212B1 successfully refreshed from Google Patents.
Patent US3945187A successfully refreshed from Google Patents.
US3945187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile spindle
Assignee: Spindel Motoren und Maschinenfabrik AG
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Filing: 1974-07-03
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Granted: 1976-03-23
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Expires: 1994-07-03
Abstract
Abstract A textile spindle comprising a spindle housing supporting a collar bearing and a footstep bearing through the agency of elastic bearing elements formed of a yieldable or resilient material. The elastic bearing elements support a rigid bearing tube which houses the collar bearing and the footstep bearing.
Inventors
- 👤 Dieter Widmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:10
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/02; D01H7/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
175 words
A textile spindle comprising: a elongate tubular spindle housing; a first elastic bearing element fitted in the housing at one end thereof; a second elastic bearing element fitted in the housing at the other end thereof and located between first and second engagement members; a rigid support tube extending within the housing and supported therein by the first and second elastic bearing elements, the rigid support tube having one end region protruding from said one end of the housing and being enlarged at said one end region, and the first engagement member being between the second elastic bearing element and the support tube and being connected to the support tube in such a manner that it is displaceable axially of the support tube yet is substantially fixed against displacement radially thereof; a collar bearing fitted in the enlarged end region of the support tube; a footstep bearing fitted in the support tube at the other end thereof; and a spindle blade supported within the rigid support tube by the footstep bearing and the collar bearing.
Claim 2
Dependent Claim
175 words
A textile spindle comprising: a elongate tubular spindle housing; a first elastic bearing element fitted in the housing at one end thereof; a second elastic bearing element fitted in the housing at the other end thereof and located between first and second engagement members; a rigid support tube extending within the housing and supported therein by the first and second elastic bearing elements, the rigid support tube having one end region protruding from said one end of the housing and being enlarged at said one end region, and the first engagement member being between the second elastic bearing element and the support tube and being connected to the support tube in such a manner that it is displaceable axially of the support tube yet is substantially fixed against displacement radially thereof; a collar bearing fitted in the enlarged end region of the support tube; a footstep bearing fitted in the support tube at the other end thereof; and a spindle blade supported within the rigid support tube by the footstep bearing and the collar bearing.
Claim 3
Dependent Claim
48 words
A textile spindle as claimed in claim 1, wherein said first elastic bearing element is in the form of a ring accommodated in the spindle housing and surrounding the rigid support tube, the effective cross-section of the ring having substantially the same axial dimension as its radial dimension.
Claim 4
Dependent Claim
60 words
A textile spindle as claimed in claim 2, comprising a ring member mounted in the spindle housing and surrounding the rigid support tube between the first elastic bearing element and the second elastic bearing element, the internal diameter of the ring member being larger than the external diameter of the support tube where it is surrounded by the ring member.
Claim 5
Dependent Claim
48 words
A textile spindle as claimed in claim 1, wherein the first engagement member has a rod-form portion fitted in the support tube at said other end thereof and a flange portion having a main face directed away from the rod-form portion and engaging the second elastic bearing element.
Claim 6
Dependent Claim
60 words
A textile spindle as claimed in claim 1, wherein the second elastic bearing element and the first and second engagement members are each of generally circular cross-section, the maximum diameter of the first engagement member being approximately equal to the maximum diameter of the second elastic bearing element but being smaller than the maximum diameter of the second engagement member.
Claim 7
Dependent Claim
45 words
A textile spindle as claimed in claim 5, wherein a substantially ring-shaped gap is maintained free surrounding the first engagement member and the second elastic bearing element, and the gap is bounded by a stop for limiting radial deflection of the second elastic bearing element.
Claim 8
Dependent Claim
56 words
A textile spindle as claimed in claim 6, comprising a ring-shaped damping element mounted in the housing and surrounding a region of the support tube at said other end thereof, and a spacer sleeve surrounding the second elastic bearing element and the first engagement member and extending between the second engagement member and the damping element.
Claim 9
Dependent Claim
26 words
A textile spindle as claimed in claim 1, wherein the second elastic bearing element has opposite surfaces secured to the first and second engagement members respectively.
Claim 10
Dependent Claim
16 words
A textile spindle as claimed in claim 1, wherein the second elastic bearing element is ring-shaped.
References Cited (Backward Citations)
US2777739A
Cited
US2946179A
Cited
US3035402A
Cited
US3065593A
Cited
US3447305A
Cited
US3798888A
Cited
US3797219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |