US4690960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration damping material
Assignee: NEC Corp
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Filing: 1985-01-14
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Granted: 1987-09-01
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Expires: 2005-01-14
Abstract
Abstract A vibration damping material having an improved mechanical strength and excellent vibration damping characteristic is disclosed. The material is made by usage of composition of 40 to 90 weight percent of iron oxide particles 0.1 to 100 mu m in size and 60 to 10 weight percent of resin.
Inventors
- 👤 Fumio Yamauchi
- 👤 Tsutomu Tohara
- 👤 Shigeo Nakano
- 👤 Shigeo Emoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:31
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/30; F16F9/306; C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984; Y10T29/49844
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
71 words
A system for isolating vibrations, comprising a functional apparatus to be operated where vibration is damped, and a bed on which said functional apparatus is mounted, said bed made by usage of a composition essentially consisting of 40 to 90 weight percent of iron oxide particles of 0.1 to 100 μm in size and 60 to 10 weight percent of resin, in which said bed includes honeycomb core made of metal.
Claim 2
Independent Claim
71 words
A system for isolating vibrations, comprising a functional apparatus to be operated where vibration is damped, and a bed on which said functional apparatus is mounted, said bed made by usage of a composition essentially consisting of 40 to 90 weight percent of iron oxide particles of 0.1 to 100 μm in size and 60 to 10 weight percent of resin, in which said bed includes honeycomb core made of metal.
Claim 3
Dependent Claim
19 words
The system according to claim 1, in which said functional apparatus is mounted on said bed via spring means.
Claim 4
Independent Claim
58 words
A method of isolating a functional appratus from vibration, said method comprising the step of disposing said functional apparatus on a bed comprising 40 to 90 weight percent of iron oxide particles of 0.1 to 100 μm in size and 60 to 10 weight percent of resin, in which a plurality of foams are distributed in said bed.
Claim 5
Independent Claim
58 words
A method of isolating a functional appratus from vibration, said method comprising the step of disposing said functional apparatus on a bed comprising 40 to 90 weight percent of iron oxide particles of 0.1 to 100 μm in size and 60 to 10 weight percent of resin, in which a plurality of foams are distributed in said bed.
Claim 6
Independent Claim
57 words
A method of isolating a functional apparatus from vibration, said method comprising the step of disposing said functional apparatus on a bed comprising 40 to 90 weight percent of iron oxide particles of 0.1 to 100 μm in size and 60 to 10 weight percent of resin, wherein said bed comprises a honeycomb core made of metal.
Claim 7
Independent Claim
57 words
A method of isolating a functional apparatus from vibration, said method comprising the step of disposing said functional apparatus on a bed comprising 40 to 90 weight percent of iron oxide particles of 0.1 to 100 μm in size and 60 to 10 weight percent of resin, wherein said bed comprises a honeycomb core made of metal.
Claim 8
Dependent Claim
40 words
A vibration damping material consisting essentially of 40 to 90 weight percent of ferrite particles of 0.1 to 100 μm in size and 60 to 10 weight percent of resin, said material having a logarithmic decrement of 0.04 to 0.5.
Claim 9
Dependent Claim
40 words
A vibration damping material consisting essentially of 40 to 90 weight percent of ferrite particles of 0.1 to 100 μm in size and 60 to 10 weight percent of resin, said material having a logarithmic decrement of 0.04 to 0.5.
Claim 10
Dependent Claim
27 words
The material according to claim 5, in which said resin is selected from the group of polyester, polypropylene, urethane, phenol resin, epoxy resin, ABS resin and rubber.
Claim 11
Independent Claim
74 words
A method of damping vibration in an apparatus by disposing between said apparatus and a source of vibration a vibration damping material, said method comprising the step of disposing between said vibration source and said apparatus a vibration damping material comprising 40 to 90 weight percent of ferrite particles of 0.1 to 100 microns in size and 60 to 10 weight percent of resin, said material having a logarithmic decrement of 0.04 to 0.5.
Claim 12
Independent Claim
74 words
A method of damping vibration in an apparatus by disposing between said apparatus and a source of vibration a vibration damping material, said method comprising the step of disposing between said vibration source and said apparatus a vibration damping material comprising 40 to 90 weight percent of ferrite particles of 0.1 to 100 microns in size and 60 to 10 weight percent of resin, said material having a logarithmic decrement of 0.04 to 0.5.
Claim 13
Dependent Claim
26 words
A method as defined in claim 7, wherein said resin is selected from the group of polyester, polypropylene, urethane, phenol resin, epoxy resin, and ABS resin.
Claim 14
Independent Claim
45 words
A method of isolating a functional apparatus from vibration, said method comprising the step of disposing said functional apparatus on a bed comprising 40 to 90 weight percent offerrite particles of 0.1 to 100 μm in size and 60 to 10 weight percent of resin.
Claim 15
Independent Claim
45 words
A method of isolating a functional apparatus from vibration, said method comprising the step of disposing said functional apparatus on a bed comprising 40 to 90 weight percent offerrite particles of 0.1 to 100 μm in size and 60 to 10 weight percent of resin.
Claim 16
Dependent Claim
29 words
A method as defined in claim 9, wherein said step of disposing said functional apparatus on said bed comprises mounting said functional apparatus on said bed via spring means.
Claim 17
Dependent Claim
20 words
A method as defined in claim 9, further comprising the step of distributing a plurality of foams in said bed.
Claim 18
Dependent Claim
17 words
A method as defined in claim 9, wherein said bed comprises a honeycomb core made of metal.
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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) | 1990-08-31 | 1991-03-02 | 1991-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-31 | 1995-03-02 | 1995-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-31 | 1999-03-02 | 1999-09-01 | $7700.00 | Window Closed / Lapsed |