Patent US3594892A successfully refreshed from Google Patents.
US3594892A
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US
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Method of producing a multiple compression rate bushing
Assignee: Clevite Industries Inc
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Filing: 1969-04-14
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Granted: 1971-07-27
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Expires: 1989-04-14
Abstract
Abstract A bushing of an inner and an outer tubular sleeve and a rubber insert placed therebetween under radial compression, and in which the outer or the inner tubular sleeve is deformed out of round after assembly of the bushing. The rubber insert may be adhesively secured to the sleeves and/or post-cured prior to the deformation.
Inventors
- 👤 Ross E Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:38
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/38; F16F1/387; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872; Y10T29/49908; Y10T29/49909; Y10T29/49911; Y10T29/49913
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
94 words
A method for producing a multiple compression rate bushing comprising an inner and an outer sleeve of rigid material formed originally of generally cylindrical tubular configuration, the method comprising the steps of: axially forcing into and radially compressing an annular, rubber insert between the inner and outer sleeve to establish concentrically juxtaposed sleeves, and arranging the insert therebetween for substantially filling the space between the sleeves; deforming one of said sleeves to an oval shape along the axial length of the sleeve to establish in the rubber insert a multiple rate of radial compression.
Claim 2
Independent Claim
94 words
A method for producing a multiple compression rate bushing comprising an inner and an outer sleeve of rigid material formed originally of generally cylindrical tubular configuration, the method comprising the steps of: axially forcing into and radially compressing an annular, rubber insert between the inner and outer sleeve to establish concentrically juxtaposed sleeves, and arranging the insert therebetween for substantially filling the space between the sleeves; deforming one of said sleeves to an oval shape along the axial length of the sleeve to establish in the rubber insert a multiple rate of radial compression.
Claim 3
Dependent Claim
13 words
A method according to claim 1, wherein only said inner sleeve is deformed.
Claim 4
Dependent Claim
13 words
A method according to claim 1, wherein only said outer sleeve is deformed.
Claim 5
Dependent Claim
31 words
A method according to claim 1, wherein the surface of one of said sleeves facing the rubber insert is coated with an adhesive material prior to prEssure contact with said insert.
Claim 6
Dependent Claim
32 words
A method according to claim 4, wherein said rubber insert, after assembly but prior to the deformation step, is post-cured to create a bond between said insert and said last mentioned sleeve.
Claim 7
Dependent Claim
32 words
A method according to claim 4, wherein said rubber insert, after assembly and subsequent to the deformation step, is post-cured to create a bond between said insert and said last mentioned sleeve.
Claim 8
Dependent Claim
25 words
A method according to claim 1, wherein said rubber insert is first forced over the inner sleeve and subsequently radially compressed into said outer sleeve.
Claim 9
Dependent Claim
44 words
A method according to claim 1, wherein the outer sleeve and the rubber insert is deformed to an elliptical or oval configuration and the radial rate of compression of the assembled bushing is lowest at the maximum diameter and highest at the smallest diameter.
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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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |