US4241960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide bushing formed of flat slip steel band with antifriction coating
Assignee: SKF Industrial Trading and Development Co BV
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Filing: 1976-11-17
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Granted: 1980-12-30
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Expires: 1996-11-17
Abstract
Abstract A slide bushing, adapted to be sprung into a round housing bore, is formed of a spring steel band having a thickness between 0.2 and 0.5 millimeters, and is provided with a plastic antifriction layer on the inner surfaces thereof. The slide bushing, when not installed, is in the form of an ellipse having a ratio of length between the major and the minor axes of 1:0.9, with the minor axis intersecting the slit.
Inventors
- 👤 Georg Hentschel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:30
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C2208/00; F16C2208/20; F16C2208/60; F16C2240/00; F16C2240/40; F16C2240/60
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
86 words
In a slide bushing formed of a flat spring steel band having a coating of an antifriction material, and adapted to be sprung into a round housing bore, the improvement wherein said band has a wall thickness between 0.2 and 0.5 millimeters, said slide bushing having an elliptical shape with an axially extending slit when it is not installed in a housing bore, with the ratio between the major and minor axes thereof being substantially 1:0.9, the minor axis extending through the slit of the ellipse.
Claim 2
Dependent Claim
86 words
In a slide bushing formed of a flat spring steel band having a coating of an antifriction material, and adapted to be sprung into a round housing bore, the improvement wherein said band has a wall thickness between 0.2 and 0.5 millimeters, said slide bushing having an elliptical shape with an axially extending slit when it is not installed in a housing bore, with the ratio between the major and minor axes thereof being substantially 1:0.9, the minor axis extending through the slit of the ellipse.
Claim 3
Dependent Claim
45 words
The slide bushing of claim 1, wherein said steel band has a length less than the circumference of said housing bore in which the slide bushing is adapted to be inserted, whereby the slit between the ends of the band forming the bushing is maintained.
Claim 4
Independent Claim
123 words
The method of providing a bushing for a round housing bore, comprising the steps of providing a spring steel band having a coating of an antifriction material on one side thereof and an axially extending slit by severing a spring steel strip, the spring steel band having a thickness between 0.2 and 0.5 millimeters and a length less than the circumference of the housing bore by a distance substantially corresponding to the severing tolerance of the band, forming said band into an elliptical shape with a ratio between the major and minor axes of substantially 1:0.9, the minor axis of the ellipse extending through the slit between the ends of the band, and then springing said elliptically formed bushing into said housing bore.
Claim 5
Independent Claim
123 words
The method of providing a bushing for a round housing bore, comprising the steps of providing a spring steel band having a coating of an antifriction material on one side thereof and an axially extending slit by severing a spring steel strip, the spring steel band having a thickness between 0.2 and 0.5 millimeters and a length less than the circumference of the housing bore by a distance substantially corresponding to the severing tolerance of the band, forming said band into an elliptical shape with a ratio between the major and minor axes of substantially 1:0.9, the minor axis of the ellipse extending through the slit between the ends of the band, and then springing said elliptically formed bushing into said housing bore.
Claim 6
Dependent Claim
135 words
In the combination of a slide bushing formed of a flat spring steel band having a layer of an antifriction material, and a housing having a round bore, said steel band being sprung into said housing bore, the improvement wherein said band has a wall thickness between 0.2 and 0.5 millimeters, said slide bushing having an elliptical shape with an axially extending slit when it is not installed in said housing bore, the ratio between the major and minor axes of said elliptical shape being substantially 1:0.9, the minor axis intersecting the slit of said elliptical shape, said steel band having a length less than the circumference of said housing bore, whereby the slit between the ends of said band forming said slide bushing is maintained when said bushing is sprung into said housing bore.
Claim 7
Dependent Claim
135 words
In the combination of a slide bushing formed of a flat spring steel band having a layer of an antifriction material, and a housing having a round bore, said steel band being sprung into said housing bore, the improvement wherein said band has a wall thickness between 0.2 and 0.5 millimeters, said slide bushing having an elliptical shape with an axially extending slit when it is not installed in said housing bore, the ratio between the major and minor axes of said elliptical shape being substantially 1:0.9, the minor axis intersecting the slit of said elliptical shape, said steel band having a length less than the circumference of said housing bore, whereby the slit between the ends of said band forming said slide bushing is maintained when said bushing is sprung into said housing bore.
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) | 1983-12-30 | 1984-06-30 | 1984-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-30 | 1988-06-30 | 1988-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-30 | 1992-06-30 | 1992-12-30 | $7700.00 | Window Closed / Lapsed |