US4530386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushion tire
Assignee: Hohyu Rubber Co Ltd
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Filing: 1983-10-25
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Granted: 1985-07-23
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Expires: 2003-10-25
Abstract
Abstract A rubber material which is a cured rubber having a hardness of from 30° as measured with an A-type rubber hardness tester to 15° as measured with an F-type rubber hardness tester and an impact resilience of not less than 50%. The material has excellent vibration-proof, sound-proof, shock-absorbing or cushioning properties and is useful as a material for vibration-proof, sound-proof, shock-absorbing and cushioning members.
Inventors
- 👤 Akitaro Nakahira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:44
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; A; A43; A43B; A43B13/00; A43B13/14; A43B13/18; A43B13/181; A43B13/187; B; B29; B29D; B29D30/00; B29D30/04; B60; B60C; B60C19/00; B60C19/002; B60C7/00; B60C7/10; B60C7/101; B60C7/102; C08L; C08L21/00; C08L91/00; C08L91/02; F; F16; F16F; F16F1/00; F16F1/36; F16F1/3605; F16F1/373; F16F1/376; H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/28; H04R1/2869; H04R1/2876; H04R1/288; H04R1/2892; H04R1/2896; H04R31/00; H04R31/003; H04R7/00; H04R7/02; Y; Y10; Y10S; Y10S273/00; Y10S273/29; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279; Y10T152/10378; Y10T152/10387; Y10T152/10396; Y10T152/10423; Y10T152/1045; Y10T428/00; Y10T428/24; Y10T428/24479
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
111 words
A non-puncture tire comprising a tire member and a ring member fitted into the tire member, the ring member being composed of a cured rubber material comprising (A) 100 parts by weight of a rubber component, (B) 100 to 2000 parts by weight of a factice, and (C) 200 to 2000 parts by weight of a softening agent, the cured rubber material having a hardness of from a maximum of 30° as measured with an A-type rubber hardness tester to a minimum of 15° as measured with an F-type rubber hardness tester, an impact resilience of not less than 50% and a tensile strength of 0.1 to 100 kg/cm 2 .
Claim 2
Dependent Claim
111 words
A non-puncture tire comprising a tire member and a ring member fitted into the tire member, the ring member being composed of a cured rubber material comprising (A) 100 parts by weight of a rubber component, (B) 100 to 2000 parts by weight of a factice, and (C) 200 to 2000 parts by weight of a softening agent, the cured rubber material having a hardness of from a maximum of 30° as measured with an A-type rubber hardness tester to a minimum of 15° as measured with an F-type rubber hardness tester, an impact resilience of not less than 50% and a tensile strength of 0.1 to 100 kg/cm 2 .
Claim 3
Dependent Claim
22 words
The non-puncture tire of claim 1, wherein the hardness is not more than 20° as measured with the A-type rubber hardness tester.
Claim 4
Dependent Claim
22 words
The non-puncture tire of claim 2, wherein the hardness is not more than 10° as measured with the A-type rubber hardness tester.
Claim 5
Dependent Claim
15 words
The non-puncture tire of claim 1, wherein the impact resistance is not less than 60%.
Claim 6
Dependent Claim
15 words
The non-puncture tire of claim 4, wherein the impact resistance is not less than 70%.
Claim 7
Dependent Claim
15 words
The non-puncture tire of claim 1, wherein the component (A) is mainly composed of polynorbornene.
Claim 8
Dependent Claim
58 words
The non-puncture tire of claim 1, wherein (A) is a rubber component mainly composed of at least one member selected from the group consisting of natural rubber, isoprene rubber, chloroprene rubber, styrene-butadiene rubber, butadiene rubber, butyl rubber, ethylene-propylene rubber, ethylene-propylene-diene rubber, nitrile rubber, acrylic rubber, urethane rubber, chlorinated polyethylene, chlorosulfonated polyethylene, epichlorohydrin rubber, polysulfide rubber and silicone rubber.
Claim 9
Dependent Claim
15 words
The non-puncture tire of claim 2, wherein the impact resistance is not less than 60%.
Claim 10
Dependent Claim
110 words
A solid tire comprising a ring core and a cover member covering the ring core, the ring core being composed of a cured rubber material comprising (A) 100 parts by weight of a rubber component, (B) 100 to 2000 parts by weight of a factice, and (C) 200 to 2000 parts by weight of a softening agent, the cured rubber material having a hardness of from a maximum of 30° as measured with an A-type rubber hardness tester to a minimum of 15° as measured with an F-type rubber hardness tester, an impact resilience of not less than 50% and a tensile strength of 0.1 to 100 kg/cm 2 .
Claim 11
Dependent Claim
110 words
A solid tire comprising a ring core and a cover member covering the ring core, the ring core being composed of a cured rubber material comprising (A) 100 parts by weight of a rubber component, (B) 100 to 2000 parts by weight of a factice, and (C) 200 to 2000 parts by weight of a softening agent, the cured rubber material having a hardness of from a maximum of 30° as measured with an A-type rubber hardness tester to a minimum of 15° as measured with an F-type rubber hardness tester, an impact resilience of not less than 50% and a tensile strength of 0.1 to 100 kg/cm 2 .
Claim 12
Dependent Claim
22 words
The solid tire of claim 9, wherein the hardness is not more than 20° as measured with the A-type rubber hardness tester.
Claim 13
Dependent Claim
22 words
The solid tire of claim 10, wherein the hardness is not more than 10° as measured with the A-type rubber hardness tester.
Claim 14
Dependent Claim
15 words
The solid tire of claim 9, wherein the impact resistance is not less than 60%.
Claim 15
Dependent Claim
15 words
The solid tire of claim 12, wherein the impact resistance is not less than 70%.
Claim 16
Dependent Claim
15 words
The solid tire of claim 9, wherein the component (A) is mainly composed of polynorbornene.
Claim 17
Dependent Claim
58 words
The solid tire of claim 9, wherein (A) is a rubber component mainly composed of at least one member selected from the group consisting of natural rubber, isoprene rubber, chloroprene rubber, styrene-butadiene rubber, butadiene rubber, butyl rubber, ethylene-propylene rubber, ethylene-propylene-diene rubber, nitrile rubber, acrylic rubber, urethane rubber, chlorinated polyethylene, chlorosulfonated polyethylene, epichlorohydrin rubber, polysulfide rubber and silicone rubber.
Claim 18
Dependent Claim
15 words
The solid tire of claim 10, wherein the impact resistance is not less than 60%.
References Cited (Backward Citations)
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Cited
US2454283A
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US2451865A
Cited
US2671249A
Cited
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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) | 1988-07-22 | 1989-01-21 | 1989-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-22 | 1993-01-21 | 1993-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-22 | 1997-01-21 | 1997-07-23 | $7700.00 | Window Closed / Lapsed |