US4002315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration damper
Assignee: IMEXIN N V SA
•
Filing: 1975-05-14
•
Granted: 1977-01-11
•
Expires: 1995-05-14
Abstract
Abstract The invention concerns a vibration damping mat having on either side projections that, when stacking a number of such mats, so engage each other that the assembly behaves like a single thicker mat having the lateral stability of a single mat and having the same differentiated damping effect for different vibration amplitudes as a single mat, however with a different absorption percentage.
Inventors
- 👤 Willy Van Goubergen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:14
CPC Classifications
F; F16; F16F; F16F3/00; F16F3/08; F16F3/087; F16F3/093; F16F1/00; F16F1/36; F16F1/373; F16F1/376
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
151 words
A vibration damper formed of a shelf-damping material, such as rubber or like elastomer, said damper being provided with upwardly and downwardly extending projections from upper and lower surfaces, respectively, of said damper, said projections having end faces parallel to said surfaces and arranged in groups of different heights, characterized in that said upwardly extending projections are comprised of a group having a specific height with an alternate group of upwardly extending projections of less height, said downwardly-extending projections being disposed on said lower surface about substantially the entire lower plate surface except areas of said lower plate surface opposite said upwardly extending projections of said specific height, the distance between said end faces of said upwardly extending projections of said specific height and said lower surface being substantially equal to the distance between said end faces of said upwardly extending projections of said less height and said downwardly extending projections.
Claim 2
Dependent Claim
151 words
A vibration damper formed of a shelf-damping material, such as rubber or like elastomer, said damper being provided with upwardly and downwardly extending projections from upper and lower surfaces, respectively, of said damper, said projections having end faces parallel to said surfaces and arranged in groups of different heights, characterized in that said upwardly extending projections are comprised of a group having a specific height with an alternate group of upwardly extending projections of less height, said downwardly-extending projections being disposed on said lower surface about substantially the entire lower plate surface except areas of said lower plate surface opposite said upwardly extending projections of said specific height, the distance between said end faces of said upwardly extending projections of said specific height and said lower surface being substantially equal to the distance between said end faces of said upwardly extending projections of said less height and said downwardly extending projections.
Claim 3
Dependent Claim
19 words
The vibration damper as defined in claim 1 wherein said projections are in the form of longitudinally extending parallelograms.
Claim 4
Dependent Claim
17 words
The vibration damper as defined in claim 1 wherein said projections are outwardly extending surfaces or rotation.
References Cited (Backward Citations)
US2733916A
Cited
US2553635A
Cited
US2686667A
Cited
US2656182A
Cited
US2713485A
Cited
US3311331A
Cited
NL6604539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-11 | 1980-07-12 | 1981-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-11 | 1984-07-12 | 1985-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-11 | 1988-07-12 | 1989-01-11 | $7700.00 | Window Closed / Lapsed |