Patent US3717318A successfully refreshed from Google Patents.
US3717318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-vibratory apparatus
Assignee: Sumitomo Riko Co Ltd
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Filing: 1972-03-24
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Granted: 1973-02-20
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Expires: 1992-03-24
Abstract
Abstract An anti-vibratory apparatus for a machine stand, comprises a cylindrical anti-vibratory rubber member edge lines with an oilresistant rubber plate, a disc-like metal plate is bonded to the upper surface of said rubber member and includes a concave portion having a relatively large radius of curvature at its center and a shoulder portion at its periphery, a tongue-like rubber member is bonded to said shoulder portion, a disc-like metal cap is spaced from said metal plate and includes a flange portion which holds tight the peripheral surface of the tonguelike member and leaves a space between it and the end surface of the tongue-like member and carries a convex portion at the central part which has a radius of curvature smaller than said concave portion of said plate. A boss including an internal thread, carries a leveling bolt having a rounded end surface with a far smaller radius of curvature screwed in the internal thread, with the end in contact with said concave portion of said plate.
Inventors
- 👤 K Yamasita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:36
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/3615; F16M; F16M7/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
201 words
An anti-vibratory apparatus comprising a cylindrical anti-vibratory rubber member lined with an oil-resistant rubber plate; a disc-like metal plate bonded to the upper surface of said rubber member, said metal plate including a shoulder portion bent downwards from its peripheral portion and a concave portion at its center having a curved surface with a large radius of curvature; a tongue-like rubber member having an inverted L-shape in section and extending at least annularly intermittent, said tongue-like rubber member being bonded at one end to the shoulder portion; a disc-like metal cap spaced from said metal plate and including a flange portion (of an L shape in section) and a convex portion projecting downwards from the undersurface of said metal cap, the central part of said cap having a raduis of curvature smaller than that of said concave portion of said metal plate, said flange portion holding tight the peripheral surface of said tongue-like member to leave a space between it and the end surface of said tongue-like member, said convex portion having secured thereto a boss and a leveling member having a rounded end surface with a far smaller radius of curvature co-axially received by said boss for axial adjustment therein.
Claim 2
Dependent Claim
201 words
An anti-vibratory apparatus comprising a cylindrical anti-vibratory rubber member lined with an oil-resistant rubber plate; a disc-like metal plate bonded to the upper surface of said rubber member, said metal plate including a shoulder portion bent downwards from its peripheral portion and a concave portion at its center having a curved surface with a large radius of curvature; a tongue-like rubber member having an inverted L-shape in section and extending at least annularly intermittent, said tongue-like rubber member being bonded at one end to the shoulder portion; a disc-like metal cap spaced from said metal plate and including a flange portion (of an L shape in section) and a convex portion projecting downwards from the undersurface of said metal cap, the central part of said cap having a raduis of curvature smaller than that of said concave portion of said metal plate, said flange portion holding tight the peripheral surface of said tongue-like member to leave a space between it and the end surface of said tongue-like member, said convex portion having secured thereto a boss and a leveling member having a rounded end surface with a far smaller radius of curvature co-axially received by said boss for axial adjustment therein.
Claim 3
Dependent Claim
201 words
An anti-vibratory apparatus comprising a cylindrical antivibratory rubber member lined with an oil-resistant rubber plate; a disc-like metal plate bonded to the upper surface of said rubber member, said metal plate including a shoulder portion bent downwards from its peripheral portion and a concave portion at its center having a curved surface with a large radius of curvature; a tongue-like rubber member having an inverted L-shape in section and extending at least annularly intermittent, said tongue-like rubber member being bonded at one end to the shoulder portion; a disc-like metal cap spaced from said metal plate and including a flange portion (of an L shape in section) and a convex portion projecting downwards from the undersurface of said metal cap, the central part of said cap having a raduis of curvature smaller than that of said concave portion of said metal plate, said flange portion holding tight the peripheral surface of said tongue-like member to leave a space between it and the end surface of said tongue-like member, said convex portion having secured thereto a boss and a leveling member having a rounded end surface with a far smaller radius of curvature coaxially received by said boss for axial adjustment therein.
Claim 4
Dependent Claim
201 words
An anti-vibratory apparatus comprising a cylindrical antivibratory rubber member lined with an oil-resistant rubber plate; a disc-like metal plate bonded to the upper surface of said rubber member, said metal plate including a shoulder portion bent downwards from its peripheral portion and a concave portion at its center having a curved surface with a large radius of curvature; a tongue-like rubber member having an inverted L-shape in section and extending at least annularly intermittent, said tongue-like rubber member being bonded at one end to the shoulder portion; a disc-like metal cap spaced from said metal plate and including a flange portion (of an L shape in section) and a convex portion projecting downwards from the undersurface of said metal cap, the central part of said cap having a raduis of curvature smaller than that of said concave portion of said metal plate, said flange portion holding tight the peripheral surface of said tongue-like member to leave a space between it and the end surface of said tongue-like member, said convex portion having secured thereto a boss and a leveling member having a rounded end surface with a far smaller radius of curvature coaxially received by said boss for axial adjustment therein.
References Cited (Backward Citations)
US1934746A
Cited
US2510979A
Cited
US2921760A
Cited
US3351309A
Cited
US3455526A
Cited
US3592423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |